I want to make TextView swipeable and also scrollable as above image.
below is my code , TextView is in adapter and swipe functionality in activity.
public class MsgSwipActivity extends Base {
private static final String TAG = "MainActivity";
private SwipeDeck swipe_deck;
private ImageView imgThank;
private Toolbar toolbar;
private AdView mAdView;
private int page_no = 1;
private SwipMsgAdapter adapter;
private ArrayList<MsgListData> msgListDatas;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.msgswip);
swipe_deck = (SwipeDeck) findViewById(R.id.swipe_deck);
mAdView = (AdView) findViewById(R.id.adView);
imgThank = (ImageView) findViewById(R.id.imgThank);
imgThank.setVisibility(View.GONE);
MobileAds.initialize(MsgSwipActivity.this, getString(R.string.banner_home_footer));
AdRequest adRequest = new AdRequest.Builder()
.addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
.build();
mAdView.loadAd(adRequest);
// Start loading the ad in the background.
toolbar = (Toolbar) findViewById(R.id.toolbar);
swipe_deck.setHardwareAccelerationEnabled(true);
msgList();
msgListDatas = new ArrayList<>();
adapter = new SwipMsgAdapter(MsgSwipActivity.this, R.layout.rowmsg_item, msgListDatas);
swipe_deck.setAdapter(adapter);
swipe_deck.setEventCallback(new SwipeDeck.SwipeEventCallback() {
#Override
public void cardSwipedLeft(int position) {
Log.i("MainActivity", "card was swiped left, position in adapter: " + position);
}
#Override
public void cardSwipedRight(int position) {
Log.i("MainActivity", "card was swiped right, position in adapter: " + position);
}
#Override
public void cardsDepleted() {
page_no = page_no + 1;
msgList();
msgListDatas = new ArrayList<>();
adapter = new SwipMsgAdapter(MsgSwipActivity.this, R.layout.rowmsg_item, msgListDatas);
swipe_deck.setAdapter(adapter);
Log.i("MainActivity", "no more cards");
}
#Override
public void cardActionDown() {
Log.i(TAG, "cardActionDown");
}
#Override
public void cardActionUp() {
Log.i(TAG, "cardActionUp");
}
});
}
}
public void msgList() {
String id = getIntent().getStringExtra("ID");
String cat_id = getIntent().getStringExtra("CATID");
VLogger.infoLog(cat_id);
if (Utility.checkInternetConnection(this)) {
RetrofitClient.getInstance().getRestOkClient().
msgSticky("ListingShayariSingle",
cat_id,
((VApp) getApplicationContext()).getCheck()
, id, String.valueOf(page_no), callback);
} else {
Toast.makeText(MsgSwipActivity.this, "No Intetnet please try again", Toast.LENGTH_SHORT).show();
}
}
private final retrofit.Callback callback = new retrofit.Callback() {
#Override
public void success(Object object, Response response) {
MsgList msgList = (MsgList) object;
if (msgList.getData() != null) {
for (int i = 0; i < msgList.getData().size(); i++) {
MsgListData item = new MsgListData();
item.setId(msgList.getData().get(i).getId());
item.setReg_date(msgList.getData().get(i).getReg_date());
item.setStatus(msgList.getData().get(i).getStatus());
item.setDetails(msgList.getData().get(i).getDetails());
item.setCategory(msgList.getData().get(i).getCategory());
item.setLanguage(msgList.getData().get(i).getLanguage());
item.setColor_code(msgList.getData().get(i).getColor_code());
getSupportActionBar().setTitle(msgList.getData().get(i).getC_name().toString());
msgListDatas.add(item);
}
adapter.setGridData(msgListDatas);
} else {
imgThank.setVisibility(View.VISIBLE);
}
}
#Override
public void failure(RetrofitError error) {
Toast.makeText(MsgSwipActivity.this, "Server Error", Toast.LENGTH_SHORT).show();
}
};
}
and here is my adapter
public class SwipMsgAdapter extends ArrayAdapter<MsgListData>{
private ArrayList<MsgListData> rowDatas;
private Context context;
private int layoutResourceId;
public EditText edtSave;
public String image_Id;
private boolean checked;
Uri bmpUri;
private ImageView imgFav, imgCopy, imgFb, imgShare, imgHike;
private ImageView imgWhatsapp;
private TextView imgMain;
private View positiveAction;
CallbackManager callbackManager;
ShareDialog shareDialog;
public SwipMsgAdapter(Context context, int layoutResourceId, ArrayList<MsgListData> rowDatas) {
super(context, layoutResourceId, rowDatas);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.rowDatas = rowDatas;
}
public void setGridData(ArrayList<MsgListData> rowDatas) {
this.rowDatas = rowDatas;
notifyDataSetChanged();
}
#Override
public int getCount() {
return rowDatas.size();
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
FacebookSdk.sdkInitialize(context.getApplicationContext());
View v = convertView;
if (v == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// normally use a viewholder
v = inflater.inflate(R.layout.rowmsg_item, parent, false);
}
callbackManager = CallbackManager.Factory.create();
shareDialog = new ShareDialog((Activity) context);
imgMain = (TextView) v.findViewById(R.id.imgMain);
imgFav = (ImageView) v.findViewById(R.id.imgFav);
imgCopy = (ImageView) v.findViewById(R.id.imgCopy);
imgHike = (ImageView) v.findViewById(R.id.imgHike);
imgWhatsapp = (ImageView) v.findViewById(R.id.imgWhatsapp);
imgFb = (ImageView) v.findViewById(R.id.imgFb);
imgShare = (ImageView) v.findViewById(R.id.imgShare);
CardView card_view = (CardView) v.findViewById(R.id.card_view);
int color = Color.parseColor(rowDatas.get(position).getColor_code());
card_view.setCardBackgroundColor(color);
image_Id = rowDatas.get(position).getId();
imgMain.setText(rowDatas.get(position).getDetails());
VLogger.infoLog("IMAGE" + String.valueOf(bmpUri));
RetrofitClient.getInstance().getRestOkClient().
checkMsgFavorite("AvailableFavoritText", VPreferences.getPreferanceDeviceID(context)
, rowDatas.get(position).getId(), checkCallback);
};
how can i implement both functionality scroll and swipe?
Scrollable TextView: Put the TextView as the child of a ScrollView.
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!" />
</ScrollView>
Remember that a ScrollView can only hold ONE object.
For Gestures, look at Detecting Common Gestures
EDIT:
You can also use this line of code in the XML and see if it works (with the textview):
android:scrollbars="vertical"
Put your textview inside scrollview in xml. Then make it "swipeable" programmatically. Stackoverflow is telling me that my answer does not meet their quality standards.
Related
I am trying to make my app handle orientation changes. Right now I am working with a RecyclerView that has an CustomAdapter to handle the data. I have implemented onSaveInstanceState to save the data that is in the Adapter, but when I re-insert it after orientation change, the method onBindViewHolder is not called. I have confirmed the data is saved and the array lists are not empty and contain the data I need.
Here is the CustomAdapter:
public class CustomAdapter extends RecyclerView.Adapter<CustomAdapter.ViewHolder> {
private static final String TAG = "CustomAdapter";
private ArrayList<Words> mDataSet;
private RecyclerView mRecyclerView;
private PopupWindow mPopupWindow;
private int currentPos;
private String srcOld;
private String targetOld;
private TranslateActivityFragment mFragment;
private EditText mEditSrc;
private EditText mEditTarget;
public class ViewHolder extends RecyclerView.ViewHolder {
private TextView textView;
private TextView textView2;
private TextView textView3;
public ViewHolder(View v){
super(v);
textView = v.findViewById(R.id.adapter_textview1);
textView2 = v.findViewById(R.id.adapter_textview2);
textView3 = v.findViewById(R.id.adapter_textview3);
v.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v){
mPopupWindow.showAtLocation(mRecyclerView, Gravity.CENTER,0,0);
mPopupWindow.setFocusable(true);
mPopupWindow.update();
currentPos = getAdapterPosition();
setCurrText();
}
private void setCurrText(){
Words tmp = mDataSet.get(currentPos);
srcOld = tmp.getW1();
targetOld = tmp.getW2();
mEditSrc.setText(srcOld);
mEditTarget.setText(targetOld);
}
});
}
public TextView getLeftTextView(){
return textView;
}
public TextView getCenterTextView(){return textView2;}
public TextView getRightTextView(){return textView3;}
}
public CustomAdapter(RecyclerView recyclerView, Context context, TranslateActivityFragment fragment){
mRecyclerView = recyclerView;
mDataSet = new ArrayList<Words>();
mFragment = fragment;
this.notifyDataSetChanged();
View v = LayoutInflater.from(mFragment.getActivity()).inflate(R.layout.edit_translate,null,false);
createPopupWindow(v, mFragment.getActivity());
setEditText(v);
}
private void setEditText(View v){
mEditSrc = v.findViewById(R.id.edit_src);
mEditTarget = v.findViewById(R.id.edit_target);
}
private void createPopupWindow(View v, Activity activity){
DisplayMetrics metrics = new DisplayMetrics();
activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
float width = 300*metrics.density;
float height = 200*metrics.density;
mPopupWindow = new PopupWindow(v,(int)width, (int)height);
Button buttonOk = v.findViewById(R.id.button_ok);
Button buttonCancel = v.findViewById(R.id.button_cancel);
Button buttonDelete = v.findViewById(R.id.button_delete);
buttonCancel.setOnClickListener(new CancelListener());
buttonOk.setOnClickListener(new OkListener());
buttonDelete.setOnClickListener(new DeleteListener());
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType){
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.textview_layout, viewGroup,false);
return new ViewHolder(v);
}
#Override
public void onBindViewHolder(ViewHolder viewHolder, final int position){
Log.d(TAG, "Element " + position + " set." + mDataSet.get(position).getW1());
viewHolder.getLeftTextView().setText(mDataSet.get(position).getW1());
viewHolder.getCenterTextView().setText(" - ");
viewHolder.getRightTextView().setText( mDataSet.get(position).getW2());
}
#Override
public int getItemCount() {
return mDataSet.size();
}
public void addData(Words newData, RecyclerView recyclerView){
mDataSet.add(newData);
System.out.println("------ ADDING DATA--------");
this.notifyDataSetChanged();
if (mDataSet.size() > 0) {
recyclerView.smoothScrollToPosition(mDataSet.size() - 1);
}
}
public void dismissPopup(){
mPopupWindow.dismiss();
}
public void removeWord(){
mDataSet.remove(currentPos);
System.out.println("mDataSet.size(): " + mDataSet.size());
System.out.println("mFragment.getTranslater.getData.size(): " + mFragment.getTranslater().getWords().size());
mFragment.getTranslater().deleteWord(currentPos);
this.notifyDataSetChanged();
}
// Update the current word from EditTexts
public void updateWord(){
String src = mEditSrc.getText().toString();
String target = mEditTarget.getText().toString();
mDataSet.get(currentPos).setW1(src);
mDataSet.get(currentPos).setW2(target);
mFragment.getTranslater().updateWord(src, target, currentPos);
this.notifyDataSetChanged();
}
private class OkListener implements View.OnClickListener {
#Override
public void onClick(View view) {
updateWord();
dismissPopup();
}
}
private class CancelListener implements View.OnClickListener{
#Override
public void onClick(View view){
dismissPopup();
}
}
private class DeleteListener implements View.OnClickListener{
#Override
public void onClick(View view){
removeWord();
dismissPopup();
}
}
public ArrayList<Words> getWords(){
return mDataSet;
}
public ArrayList<String> getW1List() {
ArrayList<String> tmp = new ArrayList<>();
for (Words w : mDataSet){
tmp.add(w.getW1());
}
return tmp;
}
public ArrayList<String> getW2List(){
ArrayList<String> tmp = new ArrayList<>();
for (Words w : mDataSet){
tmp.add(w.getW2());
}
return tmp;
}
//
// Here is where I try to restore data.
//
public void restoreWords(ArrayList<String> w1, ArrayList<String> w2, RecyclerView recyclerView){
if (mDataSet == null){
mDataSet = new ArrayList<>();
}
System.out.println("Restoring words");
for (int i = 0; i < w1.size(); ++i){
Words tmp = new Words(w1.get(i), w2.get(i), 0,0,0,false);
addData(tmp, recyclerView);
}
}
}
Code in Fragment to handle the view:
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mAdapter = new CustomAdapter(mRecyclerView, this.getContext(), this);
mRecyclerView.setAdapter(mAdapter);
if (savedInstanceState != null){
ArrayList<String> w1 = savedInstanceState.getStringArrayList(TranslateActivity.W1LIST);
ArrayList<String> w2 = savedInstanceState.getStringArrayList(W2LIST);
restoreWords(w1,w2);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.fragment_translate, container, false);
mRecyclerView = root.findViewById(R.id.translate_recycle);
mLayoutManager = new LinearLayoutManager(getActivity(), LinearLayout.VERTICAL, false);
mRecyclerView.setLayoutManager(mLayoutManager);
return root;
}
#Override
public void onViewCreated(View v, Bundle savedInstanceState){
mHelper = new Helper();
if (savedInstanceState == null) {
Intent intent = getActivity().getIntent();
source_lang = intent.getStringExtra(MainActivityFragment.SOURCE_LANG);
target_lang = intent.getStringExtra(MainActivityFragment.TARGET_LANG);
} else {
source_lang = savedInstanceState.getString(MainActivityFragment.SOURCE_LANG);
target_lang = savedInstanceState.getString(MainActivityFragment.TARGET_LANG);
}
key = mHelper.getKey(source_lang, target_lang);
mTranslater = new Translater(source_lang, target_lang, key);
setHasOptionsMenu(true);
setToolbarText();
}
public void restoreWords(ArrayList<String> w1, ArrayList<String> w2){
System.out.println("..................RESTORE WORDS....................");
mAdapter.restoreWords(w1, w2, mRecyclerView);
}
onCreate in Activity:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
helper = new Helper();
mInAppPurchase = new InAppPurchase(this, this);
mInAppPurchase.setUpNoQuery();
setContentView(R.layout.activity_translate);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mFragment = new TranslateActivityFragment();
View v = LayoutInflater.from(getApplicationContext()).inflate(R.layout.start_purchase_ui, null, false);
createPopup(v, this);
getSupportFragmentManager().beginTransaction().replace(R.id.translate_layout, mFragment).commit();
}
I have looked around and seen some suggestions to change getItemCount to not return 0. That did not help and I do not really see how that can be the problem. Here it says for ListViews one must do the restoration in either onCreateView or onActivityCreated, that did not help either.
Note that notifyDataSetChangedis called in addData(Words word)
EDIT: I have changed the flow to the following:
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.fragment_translate, container, false);
mRecyclerView = root.findViewById(R.id.translate_recycle);
mLayoutManager = new LinearLayoutManager(getActivity(), LinearLayout.VERTICAL, false);
mRecyclerView.setLayoutManager(mLayoutManager);
mAdapter = new CustomAdapter(mRecyclerView, this.getContext(), this);
mRecyclerView.setAdapter(mAdapter);
return root;
}
#Override
public void onViewCreated(View v, Bundle savedInstanceState){
mHelper = new Helper();
if (savedInstanceState == null) {
// Create helper instance
// Get the input view from which we get the source word
textInput = v.findViewById(R.id.source_input);
// Extract the chosen langauges
Intent intent = getActivity().getIntent();
source_lang = intent.getStringExtra(MainActivityFragment.SOURCE_LANG);
target_lang = intent.getStringExtra(MainActivityFragment.TARGET_LANG);
} else {
source_lang = savedInstanceState.getString(MainActivityFragment.SOURCE_LANG);
target_lang = savedInstanceState.getString(MainActivityFragment.TARGET_LANG);
ArrayList<String> w1 = savedInstanceState.getStringArrayList(TranslateActivity.W1LIST);
ArrayList<String> w2 = savedInstanceState.getStringArrayList(W2LIST);
restoreWords(w1,w2);
}
key = mHelper.getKey(source_lang, target_lang);
mTranslater = new Translater(source_lang, target_lang, key);
setHasOptionsMenu(true);
setToolbarText();
}
More Information:
I have an EditText item from which I read the input and add to the mAdapter. After rotation, that does still work. It is only when I try to re-insert the saved data it doesn't work. So I suspect restoreWords are called from the wrong method?
So it seems like the solution was to do the restoration in the Activity instead of the Fragment. I did almost the same exactly as in my question. I overwrote onRestoreInstanceState and called restoreWords implemented as
public void restoreWords(ArrayList<String> w1, ArrayList<String> w2){
System.out.println("..................RESTORE WORDS....................");
for (int i = 0; i < w1.size(); ++i){
Words tmp = new Words(w1.get(i), w2.get(i), 0, 0, 0, false);
System.out.println(tmp.getW1() + " --- " + tmp.getW2());
mFragment.addWordToView(tmp);
}
System.out.println("-------------------Number of words in adapter: " + mFragment.getAdapter().getItemCount());
}
Then it magically worked. Can someone explain why?
Calling my async task class from my oncreate in OpensubcontentActivity, it is executing fine but while calling the same async task class from vivcontentAdapter in onBindViewHolder it is giving null pointer error in progressdialog.
OpensubcontentActivity
public class OpenSubContentActivity extends AppCompatActivity {
private RecyclerView recyclerView;
private vivcontentAdapter vivcontentAdapteradapter;
static String stack_info[] = new String[10];
static int top = -1;
static String ObjectId;
static List<Information> data_content = new ArrayList<>();
public static Map info_map = null;
Boolean file_flag;
File file;
Context context;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_open_sub_content);
setEveryThing();
Intent mIntent = getIntent();
context = this;
ObjectId = mIntent.getStringExtra("CabinetID");
new getData().execute();
}
public void setEveryThing() {
floatingActionMenu = (FloatingActionMenu) findViewById(R.id.floating_menu);
newfolder = (FloatingActionButton) findViewById(R.id.idtem__folder);
newdoc = (FloatingActionButton) findViewById(R.id.idtem_doc);
upload = (FloatingActionButton) findViewById(R.id.idtem_upload);
capture = (FloatingActionButton) findViewById(R.id.idtem_photo);
toolbar = (Toolbar) findViewById(R.id.toolBar);
toolbar.setTitleTextColor(0xFFFFFFFF);
setSupportActionBar(toolbar);
getSupportActionBar().setTitle(("Example"));
recyclerView = (RecyclerView) findViewById(R.id.list_file);
vivcontentAdapteradapter = new vivcontentAdapter(this, data_content);
recyclerView.setAdapter(vivcontentAdapteradapter);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
}
class getData extends AsyncTask<Void, Void, String> {
ProgressDialog pDialog;
#Override
protected void onPreExecute() {
pDialog = new ProgressDialog(OpenSubContentActivity.this);
pDialog.setMessage("Fetching Content...");
pDialog.show();
pDialog.setCanceledOnTouchOutside(false);
}
#Override
protected String doInBackground(Void... voids) {
info_map = new HashMap();
String title = "";
String results = "";
int count = 0;
if (ObjectId.startsWith("0c")) {
Log.d("first", "coming");
CmisObject object = MainActivity.session.getObject(MainActivity.session.createObjectId(ObjectId));
Folder folder = (Folder) object;
//Document document = (Document)object;
OperationContext operationContext = MainActivity.session.createOperationContext();
ItemIterable<CmisObject> childrenn = folder.getChildren(operationContext);
ItemIterable<CmisObject> page = childrenn.getPage();
Iterator<CmisObject> pageItems = page.iterator();
while (pageItems.hasNext()) {
CmisObject item = null;
item = pageItems.next();
//System.out.println(item.getId());
if (item != null && item.getName() != null) {
if (item.getId().startsWith("0b")) {
Information info = new Information();
info.title = item.getName();
info.iconId = icons[0];
info.folderId_open_Id = item.getId();
title = title + "\n" + item.getName();
info_map.put(count, info.folderId_open_Id);
data_content.add(info);
count++;
}
return results;
}
#Override
protected void onPostExecute(String s) {
pDialog.dismiss();
vivcontentAdapteradapter.notifyDataSetChanged();
}
}
}
}
}
}
vivcontentAdapter
In this activity i am calling async task class of opensubcontentactivity.But while calling from here in progress dialog it is giving error in asynctask class getData()
Using -
OpenSubContentActivity openSubContentActivity=new OpenSubContentActivity();
openSubContentActivity.new getData().execute();
vivcontentAdapter
public class vivcontentAdapter extends RecyclerView.Adapter<vivcontentAdapter.MyViewHolder> {
private final LayoutInflater inflater;
List<Information> data_content = Collections.emptyList();
Context context;
public vivcontentAdapter(Context context, List<Information> data) {
this.context = context;
inflater = LayoutInflater.from(context);
this.data_content = data;
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.customrow, parent, false);
MyViewHolder holder = new MyViewHolder(view);
return holder;
}
#Override
public void onBindViewHolder(final vivcontentAdapter.MyViewHolder holder, final int position) {
Information current = data_content.get(position);
holder.title.setText(current.title);
holder.icon.setImageResource(current.iconId);
holder.keyicon.setImageResource(current.checkin_icon);
holder.title.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String store_objectID = (String) OpenSubContentActivity.info_map.get(position);
if (store_objectID.startsWith("0b")) {
OpenSubContentActivity.top++;
OpenSubContentActivity.stack_info[OpenSubContentActivity.top] = store_objectID; OpenSubContentActivity.ObjectId = store_objectID;
OpenSubContentActivity openSubContentActivity=new OpenSubContentActivity();
openSubContentActivity.new getData().execute();
} else {
OpenSubContentActivity.ObjectId = store_objectID;
OpenSubContentActivity openSubContentActivity=new OpenSubContentActivity();
openSubContentActivity.new getData().execute();
}
Toast.makeText(context, "Open", Toast.LENGTH_SHORT).show();
}
});
holder.txtOptionDigit.setOnClickListener(new View.OnClickListener() {
#SuppressLint("RestrictedApi")
#Override
public void onClick(View v) {
//Display option menu
});
}
#Override
public int getItemCount() {
return data_content.size();
}
class MyViewHolder extends RecyclerView.ViewHolder {
TextView title, txtOptionDigit;
ImageView icon, keyicon;
public MyViewHolder(View itemView) {
super(itemView);
title = (TextView) itemView.findViewById(R.id.textvw);
icon = (ImageView) itemView.findViewById(R.id.imageView);
keyicon = (ImageView) itemView.findViewById(R.id.key_icon);
txtOptionDigit = (TextView) itemView.findViewById(R.id.txtOptionDigit);
}
}
}
}
Error-
03-30 00:21:40.690 10385-10385/reva.irving E/SpannableStringBuilder: SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
03-30 00:21:40.690 10385-10385/reva.irving E/SpannableStringBuilder: SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
03-30 00:22:04.228 10385-10385/reva.irving E/AndroidRuntime: FATAL EXCEPTION: main
Process: reva.irving, PID: 10385
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ProgressDialog.setMessage(java.lang.CharSequence)' on a null object reference
at reva.irving.OpenSubContentActivity$getData.onPreExecute(OpenSubContentActivity.java:103)
at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:620)
at android.os.AsyncTask.execute(AsyncTask.java:567)
at reva.irving.OpenSubContentActivity.call(OpenSubContentActivity.java:84)
at reva.irving.vivcontentAdapter$1.onClick(vivcontentAdapter.java:59)
at android.view.View.performClick(View.java:5647)
at android.view.View$PerformClick.run(View.java:22462)
at android.os.Handler.handleCallback(Handler.java:754)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:163)
at android.app.ActivityThread.main(ActivityThread.java:6205)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
To perform clicks in a Recycler view you need to change your adapter. Add an interface to act as the click listener and implement it in your activity, like so:
public class vivcontentAdapter extends RecyclerView.Adapter<vivcontentAdapter.MyViewHolder> {
private final LayoutInflater inflater;
List<Information> data_content = Collections.emptyList();
Context context;
private OnClickItem clickListener;
public vivcontentAdapter(Context context, List<Information> data) {
this.context = context;
inflater = LayoutInflater.from(context);
this.data_content = data;
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.customrow, parent, false);
MyViewHolder holder = new MyViewHolder(view);
return holder;
}
#Override
public void onBindViewHolder(final vivcontentAdapter.MyViewHolder holder, final int position) {
Information current = data_content.get(position);
holder.title.setText(current.title);
holder.icon.setImageResource(current.iconId);
holder.keyicon.setImageResource(current.checkin_icon);
holder.txtOptionDigit.setOnClickListener(new View.OnClickListener() {
#SuppressLint("RestrictedApi")
#Override
public void onClick(View v) {
//Display option menu
});
}
#Override
public int getItemCount() {
return data_content.size();
}
public void setClickListener(OnClickItem listener){
this.listener = listener;
}
class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView title, txtOptionDigit;
ImageView icon, keyicon;
public MyViewHolder(View itemView) {
super(itemView);
title = (TextView) itemView.findViewById(R.id.textvw);
icon = (ImageView) itemView.findViewById(R.id.imageView);
keyicon = (ImageView) itemView.findViewById(R.id.key_icon);
txtOptionDigit = (TextView) itemView.findViewById(R.id.txtOptionDigit);
itemView.setOnClickListener(this);
}
#Override
public void onClick(View v) {
int pos = getAdapterPosition();
listener.onClickListItem(pos);
}
}
public interface OnClickItem{
void onClickListItem(int position);
}
}
Now in your activity you can catch the cliicks and run the async task:
public class OpenSubContentActivity extends AppCompatActivity implements vivcontentAdapter.OnClickItem{
private RecyclerView recyclerView;
private vivcontentAdapter vivcontentAdapteradapter;
static String stack_info[] = new String[10];
static int top = -1;
static String ObjectId;
static List<Information> data_content = new ArrayList<>();
public static Map info_map = null;
Boolean file_flag;
File file;
Context context;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_open_sub_content);
setEveryThing();
Intent mIntent = getIntent();
context=this;
ObjectId = mIntent.getStringExtra("CabinetID");
new getData().execute();
}
public void setEveryThing() {
floatingActionMenu = (FloatingActionMenu) findViewById(R.id.floating_menu);
newfolder = (FloatingActionButton) findViewById(R.id.idtem__folder);
newdoc = (FloatingActionButton) findViewById(R.id.idtem_doc);
upload = (FloatingActionButton) findViewById(R.id.idtem_upload);
capture = (FloatingActionButton) findViewById(R.id.idtem_photo);
toolbar = (Toolbar) findViewById(R.id.toolBar);
toolbar.setTitleTextColor(0xFFFFFFFF);
setSupportActionBar(toolbar);
getSupportActionBar().setTitle(("Example"));
recyclerView = (RecyclerView) findViewById(R.id.list_file);
vivcontentAdapteradapter = new vivcontentAdapter(this, data_content);
vivcontentAdapteradapter.setClickListener(this);
recyclerView.setAdapter(vivcontentAdapteradapter);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
}
#Override
public void onClickListItem(int position){
new getData().execute();
}
class getData extends AsyncTask<Void, Void, String> {
ProgressDialog pDialog;
#Override
protected void onPreExecute() {
pDialog = new ProgressDialog(OpenSubContentActivity.this);
pDialog.setMessage("Fetching Content...");
pDialog.show();
pDialog.setCanceledOnTouchOutside(false);
}
#Override
protected String doInBackground(Void... voids) {
info_map = new HashMap();
String title = "";
String results = "";
int count = 0;
if (ObjectId.startsWith("0c")) {
Log.d("first", "coming");
CmisObject object = MainActivity.session.getObject(MainActivity.session.createObjectId(ObjectId));
Folder folder = (Folder) object;
//Document document = (Document)object;
OperationContext operationContext = MainActivity.session.createOperationContext();
ItemIterable<CmisObject> childrenn = folder.getChildren(operationContext);
ItemIterable<CmisObject> page = childrenn.getPage();
Iterator<CmisObject> pageItems = page.iterator();
while (pageItems.hasNext()) {
CmisObject item = null;
item = pageItems.next();
//System.out.println(item.getId());
if (item != null && item.getName() != null) {
if (item.getId().startsWith("0b")) {
Information info = new Information();
info.title = item.getName();
info.iconId = icons[0];
info.folderId_open_Id = item.getId();
title = title + "\n" + item.getName();
info_map.put(count, info.folderId_open_Id);
data_content.add(info);
count++;
}
return results;
}
#Override
protected void onPostExecute(String s) {
pDialog.dismiss();
vivcontentAdapteradapter.notifyDataSetChanged();
}
}
}
I have two activities, one shows the movie list, and the other shows movie details. I have a shared element transition on a movie's poster. It works fine when I use with linearlayoutmanager, but when I use a gridLayoutManager for the recyclerView, after I press back button get back from the detail activity, the other image becomes blank as shown here.image
In this picture, I clicked on x-men's movie poster, but the image next to it becomes blank.
I have set a unique transitionName for every item. It's probably not the reason.
this is my activity
public class MainActivity extends AppCompatActivity implements MovieGridAdapter.OnItemClickListener {
private MovieGridAdapter mAdapter;
private int mPosition;
private Toolbar mToolbar;
private RecyclerView mMovieGridLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
EventBus.getDefault().register(this);
PreferenceManager.setDefaultValues(this, R.xml.pref_general, false);
setContentView(R.layout.activity_main);
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
mMovieGridLayout = (RecyclerView) findViewById(R.id.movie_grid);
GridLayoutManager gridLayoutManager = new GridLayoutManager(this, 3);
mMovieGridLayout.setLayoutManager(gridLayoutManager);
mAdapter = new MovieGridAdapter();
mAdapter.setOnItemClickListener(this);
mMovieGridLayout.setAdapter(mAdapter);
}
#Override
protected void onStart() {
super.onStart();
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
String sortBy = sharedPreferences.getString(getString(R.string.sort_by_key), getString(R.string.popularity));
MoviePuller.getMoviePuller().discoverMovies(sortBy);
}
#Override
protected void onDestroy() {
super.onDestroy();
EventBus.getDefault().unregister(this);
}
#Override
protected void onResume() {
super.onResume();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
Intent intent = new Intent(this, SettingActivity.class);
startActivity(intent);
return true;
} else if (id == R.id.action_refresh) {
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
String sortBy = sharedPreferences.getString(getString(R.string.sort_by_key), getString(R.string.popularity));
MoviePuller.getMoviePuller().discoverMovies(sortBy);
}
return super.onOptionsItemSelected(item);
}
#Subscribe
public void onPullSuccessEvent(Integer eventId) {
if (eventId == EventId.PULL_SUCCESS) {
mAdapter.notifyDataSetChanged();
}
}
#Override
public void onItemClick(View v, int position) {
mPosition = position;
Intent intent = new Intent(this, MovieDetailActivity.class);
ImageView imageView = (ImageView) v.findViewById(R.id.poster);
TextView title = (TextView) v.findViewById(R.id.title);
ActivityOptionsCompat scaleUpAnimationOptions = createScaleUpAnimationOptions(imageView,title);
intent.putExtra(Constants.POSITION, position);
ActivityCompat.startActivity(this, intent, scaleUpAnimationOptions.toBundle());
}
private ActivityOptionsCompat createScaleUpAnimationOptions(View view, View view2) {
Pair<View,String> pair = new Pair<>(view,view.getTransitionName());
Pair<View,String> pair2 = new Pair<>(view2,view2.getTransitionName());
Pair<View,String> pair3 = new Pair<View, String>(mToolbar,mToolbar.getTransitionName());
// View statusBar = getWindow().getDecorView().findViewById(android.R.id.navigationBarBackground);
// Pair<View,String> pair4 = new Pair<>(statusBar, ViewCompat.getTransitionName(statusBar));
return ActivityOptionsCompat.makeSceneTransitionAnimation(this,pair,pair2,pair3);
}
}
this is my adapter
public class MovieGridAdapter extends RecyclerView.Adapter<MovieGridAdapter.MyHolder> {
private JSONArray mMovies;
private OnItemClickListener mOnItemClickListener;
#Override
public MyHolder onCreateViewHolder(ViewGroup parent, int viewType) {
CardView cardView = (CardView) LayoutInflater.from(parent.getContext()).inflate(R.layout.item_movie, parent, false);
return new MyHolder(cardView,mOnItemClickListener);
}
#Override
public void onBindViewHolder(MyHolder holder, int position) {
holder.bind(position);
}
#Override
public int getItemCount() {
mMovies = MoviePuller.getMovies();
if (mMovies != null) {
return mMovies.length();
}
return 0;
}
public interface OnItemClickListener {
void onItemClick(View v, int position);
}
public void setOnItemClickListener(OnItemClickListener listener) {
mOnItemClickListener = listener;
}
class MyHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public ImageView mPoster;
public TextView mTitle;
private OnItemClickListener mOnItemClickListener;
public MyHolder(View itemView, OnItemClickListener listener) {
super(itemView);
mOnItemClickListener = listener;
mTitle = (TextView) itemView.findViewById(R.id.title);
mPoster = (ImageView) itemView.findViewById(R.id.poster);
itemView.setOnClickListener(this);
}
public void bind(int position) {
if (mMovies != null) {
try {
JSONObject movie = mMovies.getJSONObject(position);
String title = movie.getString(Constants.KEY_TITLE);
String posterPath = movie.getString(Constants.KEY_POSTER_PATH);
Picasso.with(itemView.getContext()).
load(MoviePuller.POSTER_BASE_URL + posterPath).into(mPoster);
mPoster.setTransitionName(itemView.getResources().getString(R.string.transition_poster) + position);
mTitle.setText(title);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
#Override
public void onClick(View v) {
if (mOnItemClickListener != null) {
mOnItemClickListener.onItemClick(v, getAdapterPosition());
}
}
}
}
this is my detail activity
public class MovieDetailActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_moviedetail);
Slide slide = new Slide(Gravity.BOTTOM);
slide.addTarget(R.id.divider);
slide.addTarget(R.id.vote_average);
slide.addTarget(R.id.release_date);
slide.addTarget(R.id.plot_synopsis);
slide.addTarget(R.id.rating);
slide.addTarget(R.id.divider1);
getWindow().setEnterTransition(slide);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
ImageView poster = (ImageView) findViewById(R.id.poster);
TextView tvTitle = (TextView) findViewById(R.id.title);
RatingBar voteAverage = (RatingBar) findViewById(R.id.vote_average);
TextView tvReleaseDate = (TextView) findViewById(R.id.release_date);
TextView tvPlotSynopsis = (TextView) findViewById(R.id.plot_synopsis);
TextView tvRating = (TextView) findViewById(R.id.rating);
int position = getIntent().getIntExtra(Constants.POSITION, -1);
poster.setTransitionName(getString(R.string.transition_poster) + position);
JSONArray movies = MoviePuller.getMovies();
if(movies != null && movies.length() > position) {
try {
JSONObject movie = movies.getJSONObject(position);
String title = movie.getString(Constants.KEY_TITLE);
String poster_path = movie.getString(Constants.KEY_POSTER_PATH);
String release_date = movie.getString(Constants.KEY_RELEASE_DATE);
String vote_average = movie.getString(Constants.KEY_VOTE_AVERAGE);
String overview = movie.getString(Constants.KEY_OVERVIEW);
String id = movie.getString(Constants.KEY_ID);
MoviePuller.getMoviePuller().getTrailers(id);
MoviePuller.getMoviePuller().getReviews(id);
toolbar.setTitle(title);
setSupportActionBar(toolbar);
Picasso.with(this).load(MoviePuller.POSTER_BASE_URL+poster_path).into(poster);
tvTitle.setText(title);
tvReleaseDate.setText(release_date);
tvPlotSynopsis.setText(overview);
voteAverage.setRating(Float.parseFloat(vote_average)/2);
tvRating.setText(vote_average);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
#Subscribe
public void onEvent(EventId eventId){
if(eventId.mId == EventId.GET_TRAILER_SUCCESS){
JSONArray trailerArray = (JSONArray) eventId.mEventObject;
}else if(eventId.mId == EventId.GET_REVIEW_SUCCESS){
JSONArray reviewArray = (JSONArray) eventId.mEventObject;
}
}
}
the recyclerView xml is like this
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".activities.MainActivity"
tools:showIn="#layout/activity_main">
<android.support.v7.widget.RecyclerView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/movie_grid"/>
</RelativeLayout>
What should i do to avoid this?
i record a gif
I guess the problem is with the way you are passing positions of the views between DetailActivity and the MainActivity.
In MainActivity onItemClick() method replace this
intent.putExtra(Constants.POSITION, position);
with this
Bundle bundle = new Bundle();
bundle.putInt(Constants.POSITION, position);
intent.putExtras(bundle);
And in DetailActivity replace this
int position = getIntent().getIntExtra(Constants.POSITION, -1);
with this
int position = getIntent().getExtras().getInt(Constants.POSITION);
Also, what is itemView in MyHolder class, bind() method. You need to pass context to the adapter and use that.
Create this constructor in MovieGridAdapter :
public MovieGridAdapter(Context context) {
this.context = context;
}
and In bind() method replace occurences of itemView:
Picasso.with(context).load(MoviePuller.POSTER_BASE_URL + posterPath).into(mPoster);
mPoster.setTransitionName(context.getString(R.string.transition_poster) + position);
Initialize MovieGridAdapter in MainActivity in this way:
mAdapter = new MovieGridAdapter(this);
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Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 6 years ago.
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I'm currently having trouble restoring my fragment to it's previous state after clicking into a detail activity from my recyclerview adapter. The back button within the detail activity returns me to an empty fragment with no data.
Here's the detail activity class
**
* Provides UI for the Detail page with Collapsing Toolbar.
*/
public class DetailActivity extends AppCompatActivity implements View.OnClickListener {
public static final String EXTRA_POSITION = "position";
private Boolean isFabOpen = false;
private FloatingActionButton fab,fab1,fab2;
private Animation fab_open,fab_close,rotate_forward,rotate_backward;
private CollapsingToolbarLayout collapTool;
private LinearLayout linLayout;
private boolean isFavorited;
private boolean isIgnored;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_detail);
fab = (FloatingActionButton)findViewById(R.id.fab);
fab1 = (FloatingActionButton)findViewById(R.id.fab1);
fab2 = (FloatingActionButton)findViewById(R.id.fab2);
fab_open = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.fab_open);
fab_close = AnimationUtils.loadAnimation(getApplicationContext(),R.anim.fab_close);
rotate_forward = AnimationUtils.loadAnimation(getApplicationContext(),R.anim.rotate_forward);
rotate_backward = AnimationUtils.loadAnimation(getApplicationContext(),R.anim.rotate_backward);
fab.setOnClickListener(this);
fab1.setOnClickListener(this);
fab2.setOnClickListener(this);
//Getting the details passed from the last activity to parse proper detail display
Intent intent = getIntent();
Bundle bd = intent.getExtras();
String titleText = (String) bd.get("titleText");
String descriptionText = (String) bd.get("description");
String locations = (String) bd.get("locations");
String assetTypes = (String) bd.get("assetTypes");
String propertyStatuses = (String) bd.get("propertyStatuses");
String buyerId = (String) bd.get("buyer_id") + "";
//Buyer ID testing if proper ID is passed through
//Toast.makeText(getApplicationContext(),buyerId,Toast.LENGTH_SHORT).show();
isFavorited = (Boolean) bd.get("favorited");
isIgnored = (Boolean) bd.get("ignored");
//If item was favorited from previous page, adjust accordingly
if(isFavorited) {
fab2.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#7E57C2")));
fab1.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#133253")));
fab.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#7E57C2")));
isFavorited = true;
isIgnored = false;
}
//If item was ignored from previous page, adjust accordingly
if(isIgnored) {
fab1.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#EF5350")));
fab2.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#133253")));
fab.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#EF5350")));
isIgnored = true;
isFavorited = false;
}
setSupportActionBar((Toolbar) findViewById(R.id.toolbar));
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
linLayout = (LinearLayout) findViewById(R.id.linLay);
collapTool = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
linLayout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(isFabOpen) {
fab.startAnimation(rotate_backward);
fab1.startAnimation(fab_close);
fab2.startAnimation(fab_close);
fab1.setClickable(false);
fab2.setClickable(false);
isFabOpen = false;
}
}
});
collapTool.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(isFabOpen) {
fab.startAnimation(rotate_backward);
fab1.startAnimation(fab_close);
fab2.startAnimation(fab_close);
fab1.setClickable(false);
fab2.setClickable(false);
isFabOpen = false;
}
}
});
locations = locations.replace("Locations | ", "");
assetTypes = assetTypes.replace("Asset Types | ", "");
propertyStatuses = propertyStatuses.replace("Property Statuses | ", "");
// Set Collapsing Toolbar layout to the screen
CollapsingToolbarLayout collapsingToolbar =
(CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
// Set title of Detail page
// collapsingToolbar.setTitle(getString(R.string.item_title));
assert fab2 != null;
fab2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(!isFavorited) {
fab2.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#7E57C2")));
fab1.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#133253")));
fab.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#7E57C2")));
//Snackbar.make(v, "Favorited...",Snackbar.LENGTH_LONG).show();
isFavorited = true;
isIgnored = false;
} else {
fab.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#133253")));
fab2.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#133253")));
/*Snackbar.make(v, "Unfavorited...",
Snackbar.LENGTH_LONG).show();
*/
isFavorited = false;
}
}
});
assert fab1 != null;
fab1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(!isIgnored) {
fab1.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#EF5350")));
fab2.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#133253")));
fab.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#EF5350")));
isIgnored = true;
isFavorited = false;
} else {
fab1.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#133253")));
fab.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#133253")));
/*Snackbar.make(v, "Unfavorited...",
Snackbar.LENGTH_LONG).show();
*/
isIgnored = false;
}
}
});
int postion = getIntent().getIntExtra(EXTRA_POSITION, 0);
Resources resources = getResources();
String[] places = resources.getStringArray(R.array.city_array);
collapsingToolbar.setTitle(titleText);
String[] placeDetails = resources.getStringArray(R.array.city_array);
TextView placeDetail = (TextView) findViewById(R.id.place_detail);
placeDetail.setText(descriptionText);
String[] placeLocations = resources.getStringArray(R.array.city_array);
TextView placeLocation = (TextView) findViewById(R.id.place_location);
placeLocation.setText(locations);
TextView assetDetails = (TextView) findViewById(R.id.asset_details);
assetDetails.setText(assetTypes);
TextView propertyDetails = (TextView) findViewById(R.id.status_details);
propertyDetails.setText(propertyStatuses);
/*
TextView investmentDetails = (TextView) findViewById(R.id.investment_details);
investmentDetails.setText(investmentRangeMin);
*/
/*
TypedArray placePictures = resources.obtainTypedArray(R.array.city_array);
ImageView placePicutre = (ImageView) findViewById(R.id.image);
placePicutre.setImageDrawable(placePictures.getDrawable(postion % placePictures.length()));
placePictures.recycle();
*/
}
And here is my recyclerView adapter that has an onclicklistener for the item view which creates the detail activity.
public class RVAdapter extends RecyclerView.Adapter<RVAdapter.PersonViewHolder> {
private Activity activity;
private LayoutInflater inflater;
private static List<BuyerProfile> profileItems;
private static boolean itemFavorited;
RVAdapter(List<BuyerProfile> profiles) {
this.profileItems = profiles;
}
public static class PersonViewHolder extends RecyclerView.ViewHolder {
TextView name;
TextView description;
TextView locations;
TextView id;
TextView investmentRange;
TextView investmentRangeMax;
TextView assetTypes;
TextView propertyStatuses;
TextView profileId;
ImageView headerImage;
Button favoriteButton;
Button ignoreButton;
CardView cardView;
private ImageView spacer;
private boolean favorited = false;
private boolean ignored = false;
PersonViewHolder(View itemView) {
super(itemView);
name = (TextView) itemView.findViewById(R.id.titleText);
description = (TextView) itemView.findViewById(R.id.descriptionText);
investmentRange = (TextView) itemView.findViewById(R.id.investment);
//investmentRangeMax = (TextView) itemView.findViewById(R.id.investmentRangeMax);
locations = (TextView) itemView.findViewById(R.id.locations);
id = (TextView) itemView.findViewById(R.id.profileNumber);
headerImage = (ImageView) itemView.findViewById(R.id.imgBillionaire);
assetTypes = (TextView) itemView.findViewById(R.id.assetTypes);
propertyStatuses = (TextView) itemView.findViewById(R.id.propertyStatuses);
favoriteButton = (Button) itemView.findViewById(R.id.action_button);
ignoreButton = (Button) itemView.findViewById(R.id.ignore_button);
cardView = (CardView) itemView.findViewById(R.id.cv);
profileId = (TextView) itemView.findViewById(R.id.buyer_id);
spacer = (ImageView) itemView.findViewById(R.id.spacerImage);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int i = getAdapterPosition();
Context context = v.getContext();
Intent intent = new Intent(context, DetailActivity.class);
intent.putExtra(DetailActivity.EXTRA_POSITION, getAdapterPosition());
intent.putExtra("titleText", name.getText());
intent.putExtra("description", description.getText());
intent.putExtra("locations", locations.getText());
intent.putExtra("assetTypes", assetTypes.getText());
intent.putExtra("propertyStatuses", propertyStatuses.getText());
intent.putExtra("favorited", favorited);
intent.putExtra("ignored", ignored);
HomeFragment homeReturn = new HomeFragment();
// intent.putExtra("buyer_id", profileId.getText());
//intent.putExtra("investmentRangeMin", investmentRangeMin.getText());
context.startActivity(intent);
}
});
/*
favoriteButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(!favorited) {
spacer.setVisibility(View.VISIBLE);
headerImage.setBackgroundColor(Color.parseColor("#7E57C2"));
favorited = true;
ignored = false;
} else {
spacer.setVisibility(View.INVISIBLE);
favorited = false;
headerImage.setBackgroundColor(Color.parseColor("#42A5F5"));
}
}
});
*/
ignoreButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(!ignored) {
spacer.setVisibility(View.VISIBLE);
headerImage.setBackgroundColor(Color.parseColor("#EF5350"));
favorited = false;
ignored = true;
} else {
ignored = false;
spacer.setVisibility(View.INVISIBLE);
headerImage.setBackgroundColor(Color.parseColor("#133253"));
}
}
});
}
}
#Override
public int getItemCount() {
return profileItems.size();
}
#Override
public PersonViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item, viewGroup, false);
PersonViewHolder pvh = new PersonViewHolder(v);
return pvh;
}
#Override
public void onBindViewHolder(PersonViewHolder personViewHolder, int i) {
final PersonViewHolder selectedCard = personViewHolder;
selectedCard.name.setText(profileItems.get(i).getBuyerProfTitle());
selectedCard.description.setText(profileItems.get(i).getDescription());
selectedCard.locations.setText("Locations | " + profileItems.get(i).parseLocations());
selectedCard.assetTypes.setText("Asset Types | " + profileItems.get(i).getAssetTypes());
selectedCard.propertyStatuses.setText("Property Statuses | " + profileItems.get(i).getPropertyStatuses());
selectedCard.investmentRange.setText("Investment Range | $125,000 - $250,000");
final int position = i;
personViewHolder.ignoreButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
profileItems.remove(position);
notifyItemRemoved(position);
notifyItemRangeChanged(position, getItemCount());
}
});
selectedCard.favoriteButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(!selectedCard.favorited) {
profileItems.get(position).favoriteItem();
selectedCard.spacer.setVisibility(View.VISIBLE);
selectedCard.spacer.setBackgroundColor(Color.parseColor("#FFF176"));
selectedCard.headerImage.setBackgroundColor(Color.parseColor("#7E57C2"));
selectedCard.favorited = true;
selectedCard.ignored = false;
} else {
profileItems.get(position).unfavoriteItem();
selectedCard.favorited = false;
selectedCard.headerImage.setBackgroundColor(Color.parseColor("#133253"));
}
}
});
//personViewHolder.profileId.setText(profileItems.get(i).getProfileId() + "");
//personViewHolder.investmentRangeMin.setText(profileItems.get(i).getInvestmentRangeMin());
}
#Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
}
#Override
public long getItemId(int position) {
return position;
}
}
And finally here is my main fragment which holds the recyclerview.
public class HomeFragment extends Fragment {
private CustomListAdapter listAdapter;
//private static final String profileUrl = "http://172.16.98.152:3000/apip/buyers/profiles";
private static final String matchesUrl = "http://172.16.98.152:3000/apip/sellers/profiles/1/matches";
private String matched = "http://172.16.98.152:3000/apip/sellers/profiles/";
private ProgressDialog pDialog;
private ListView listView;
private List<BuyerProfile> buyersProfiles = new ArrayList<BuyerProfile>();
private View root;
private TextView noItems;
private TextView search;
private TextView searchSecondLine;
private LinearLayoutManager llm;
private String profileUrlString;
private String KEY_RECYCLER_STATE = "recycleSave";
private Bundle viewState;
private Bundle arguments;
private RecyclerView rv;
private int mStackLevel;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
root = inflater.inflate(R.layout.fragment_home, container, false);
noItems = (TextView) root.findViewById(R.id.empty_view);
search = (TextView) root.findViewById(R.id.search);
searchSecondLine = (TextView) root.findViewById(R.id.matchesSecondLine);
rv = (RecyclerView) root.findViewById(R.id.rv);
rv.addItemDecoration(new DividerItemDecoration(getActivity(), DividerItemDecoration.VERTICAL_LIST));
llm = new LinearLayoutManager(getActivity());
rv.setLayoutManager(llm);
rv.setItemAnimator(new DefaultItemAnimator());
final RVAdapter recyclerAdapter = new RVAdapter(buyersProfiles);
rv.setAdapter(recyclerAdapter);
rv.setHasFixedSize(true);
RequestQueue mRequestQueue;
arguments = getArguments();
if(savedInstanceState != null) {
matched = matched + savedInstanceState.getString("profileArgs") + "/matches";
} else {
if(arguments != null && arguments.containsKey("profileId")) {
matched = matched + arguments.getString("profileId") + "/matches";
search.setText("Search: " + arguments.getString("locations") + " " + arguments.getString("assetTypes"));
searchSecondLine.setVisibility(View.VISIBLE);
searchSecondLine.setText(arguments.getString("propertyStatuses"));
} else {
matched = "http://172.16.98.152:3000/apip/sellers/profiles/1/matches";
noItems.setVisibility(View.VISIBLE);
searchSecondLine.setVisibility(View.INVISIBLE);
rv.setVisibility(View.INVISIBLE);
search.setVisibility(View.INVISIBLE);
}
}
Cache cache = new DiskBasedCache(getActivity().getCacheDir(), 1024 * 1024);
Network network = new BasicNetwork(new HurlStack());
mRequestQueue = new RequestQueue(cache, network);
mRequestQueue.start();
JsonArrayRequest profileRequest = new JsonArrayRequest(matched,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
BuyerProfile parsedProfile = new BuyerProfile();
parsedProfile.setBuyerProfTitle(obj.getString("title"));
parsedProfile.setDescription(obj.getString("description"));
parsedProfile.setLocations(obj.getString("location"));
parsedProfile.setAssetTypes(obj.getString("asset_type"));
//parsedProfile.setProfileId(obj.getString("id"));
parsedProfile.setPropertyStatuses(obj.getString("property_status"));
//parsedProfile.setProfileId(obj.getInt("buyer_profile_id"));
parsedProfile.unfavoriteItem();
buyersProfiles.add(parsedProfile);
} catch (Exception e) {
e.printStackTrace();
}
}
recyclerAdapter.notifyDataSetChanged();
// notifying list adapter about data changes
// so that it renders the list view with updated data
//hidePDialog();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
//Toast.makeText(selectBuyerProfile.this,"Error",Toast.LENGTH_LONG).show();
}
});
mRequestQueue.add(profileRequest);
/*
if(buyersProfiles.isEmpty()) {
rv.setVisibility(View.GONE);
noItems.setVisibility(View.VISIBLE);
}
*/
return root;
}
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
if(arguments != null && arguments.containsKey("profileId")) {
outState.putString("profileArgs", arguments.getString("profileId"));
}
}
}
I'm not sure which of these classes I need to be restoring and how I can restore the previous details and images in HomeFragment after clicking back from the detail activity. I would be able to just describe a parent activity in my manifest but the main class holding everything is a fragment and android doesn't let you choose parent fragments! Any ideas or help would be appreciated.
Try to remove initialization of List from declaration.
private List buyersProfiles = new ArrayList();
And make initialization in onCreateView method if List is null.
I am having some trouble with my app, I am trying to develop a list app that you have the option to add new "Goals" to as well as new lists so that you can categorize goals to a list like the list object title can be "Eat healthy" and then you'll have goals inside like "Eat more vegetables", etc. So in order to do this I have set up a ViewPagerHost class that grabs all the List objects from a SQLite database and initializes a factory developed "List fragment" that handles all the logic of adding a goal, editing and deleting, etc. I believe I've gotten this to work correctly because everything on the database side seems to work fine, and then the other classes are just supposed to display and manipulate that information. But everything on the display side seems to be going wrong. I have each view in the recyclerview display a star next to any goal marked as "important" or "life changing" but it displays the star wherever it wants. Also the list does not load until I've click on something.
public class ViewPagerHost extends Activity_Logger {
private static final String ARG_TITLE = "title";
private ViewPager mViewPager;
private ArrayList<Fragment> mFragmentList;
private ArrayList<GoalList> goalList;
private ArrayList<Goal> goalArrayList;
Database_Controller controller;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_view_pager_host);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
MobileAds.initialize(getApplicationContext(), "ad-String");
AdView adView = (AdView) findViewById(R.id.ad);
AdRequest adRequest = new AdRequest.Builder().build();
adView.loadAd(adRequest);
setSupportActionBar(toolbar);
toolbar.setTitle("Ambition");
FragmentManager fragmentManager = getSupportFragmentManager();
controller = Database_Controller.get(getApplicationContext());
goalList = controller.getAllLists();
goalArrayList = controller.getAllGoals();
mViewPager = (ViewPager)findViewById(R.id.view_fragments);
if(goalList.get(0) == null){
GoalList listOne = new GoalList();
listOne.setTitle("DEFAULT");
controller.insertList(listOne);
for(int i =0; i< goalArrayList.size(); i++){
goalArrayList.get(i).setWhich_List(listOne.getTitle());
controller.updateGoal(goalArrayList.get(i));
}
}
mFragmentList = getFragmentList(goalList);
ViewPagerAdapter adapter = new ViewPagerAdapter(fragmentManager, mFragmentList);
if(adapter == null){
}else{
mViewPager.setAdapter(adapter);
}
}
public ArrayList<Fragment> getFragmentList(ArrayList<GoalList> list){
mFragmentList = new ArrayList<>();
Bundle bundle = new Bundle();
for(int i = 0; i< list.size(); i++){
List_Fragment list_fragment = new List_Fragment();
bundle.putString(ARG_TITLE, goalList.get(i).getTitle());
list_fragment.setArguments(bundle);
mFragmentList.add(list_fragment);
}
return mFragmentList;
}
}
Here is my ViewPagerHost class that creates the factory list.
public class List_Fragment extends Fragment {
private RecyclerView mRecyclerView;
private static final String ARG_TITLE = "title";
private static final String ARG_GOALNAME ="Goal";
private static final String ARG_IMPORTANT = "Important";
private Database_Controller mDatabaseController;
private static final String ARG_ID = "ID";
ArrayList<Goal> goalList;
LinearLayoutManager manager;
public RecyclerView.Adapter adapter;
public ReceiverThread UiThread;
FragmentManager fragmentManager;
String list_title;
public List_Fragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_list_, container, false);
Bundle bundle = getArguments();
if(bundle != null){
list_title= bundle.getString(ARG_TITLE);
}
mDatabaseController = mDatabaseController.get(getContext());
goalList = mDatabaseController.getAllListsGoals(list_title);
mRecyclerView = (RecyclerView)view.findViewById(R.id.recyclerview);
manager = new LinearLayoutManager(getActivity());
UiThread = new ReceiverThread();
mRecyclerView.setLayoutManager(manager);
final RecyclerView_Adapter wrapperClass = new RecyclerView_Adapter(goalList,getContext(),this);
adapter = wrapperClass.adapter;
for(int counter =0; counter < goalList.size(); counter++){
System.out.println(goalList.get(counter).getWhich_List());
}
mRecyclerView.setAdapter(adapter);
fragmentManager= getFragmentManager();
//adapter goes here
final FloatingActionButton fab = (FloatingActionButton)view.findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Fragment fragment = List_Fragment.this;
AddNew_PopUp popUp = AddNew_PopUp.newInstance(fragment);
popUp.setTargetFragment(fragment, 0);
popUp.show(fragmentManager, "PopUpDialog");
}
});
return view;
}
public class ReceiverThread extends Thread {
#Override
public void run() {
super.run();
getActivity().runOnUiThread(new Runnable() {
#Override
public void run() {
goalList.clear();
ArrayList<Goal>newGoalList = mDatabaseController.getAllGoals();
goalList.addAll(newGoalList);
adapter.notifyDataSetChanged();
}
});
}
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == 0){
if(resultCode == Activity.RESULT_OK){
Goal newGoal = new Goal();
String GoalName = data.getStringExtra(ARG_GOALNAME);
if (GoalName.isEmpty()) {
Toast.makeText(getContext(), R.string.NoGoal, Toast.LENGTH_SHORT).show();
} else {
newGoal.setmIsImportant(data.getBooleanExtra(ARG_IMPORTANT, false));
newGoal.setmGoalName(GoalName);
newGoal.setWhich_List(ARG_TITLE);
mDatabaseController.insertGoal(newGoal);
}
}
}else{
if(requestCode == 1){
if(resultCode == Activity.RESULT_OK){
String id = data.getStringExtra(ARG_ID);
Toast.makeText(getContext(),R.string.flush, Toast.LENGTH_LONG).show();
mDatabaseController.deleteGoal(id);
}
}else{
if(requestCode == 2){
if(resultCode == Activity.RESULT_OK){
String goalName = data.getStringExtra(ARG_GOALNAME);
Boolean isImportant = data.getBooleanExtra(ARG_IMPORTANT, false);
UUID id = UUID.fromString(data.getStringExtra(ARG_ID));
Goal goal = mDatabaseController.getGoal(id.toString());
goal.setmIsImportant(isImportant);
goal.setmGoalName(goalName);
mDatabaseController.updateGoal(goal);
}
}
}
}
UiThread.run();
}
public ReceiverThread getUiThread() {
return UiThread;
}
}
This is the list fragment that is created for every list in the database. It calls methods and manipulates data based off the user's actions.
public class RecyclerView_Adapter{
private ArrayList<Goal> mGoals;
MyAdapter adapter;
Context context;
private Database_Controller mDatabaseController;
MediaPlayer mediaPlayer;
Fragment fragment;
public RecyclerView_Adapter(ArrayList<Goal> goals, Context cntxt, Fragment fragments) {
mGoals = goals;
adapter = new MyAdapter(mGoals);
context = cntxt;
mediaPlayer = new MediaPlayer();
fragment = fragments;
mDatabaseController = Database_Controller.get(context);
}
//////////////////////////////////ADAPTER\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
private class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {
private List<Goal> mGoals;
public MyAdapter(List<Goal> goals) {
mGoals = goals;
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View view = inflater.inflate(R.layout.recycler_view_item_layout, parent, false);
MyViewHolder holder = new MyViewHolder(view);
return holder;
}
#Override
public void onBindViewHolder(MyViewHolder holder, int position) {
final Goal goal = mGoals.get(position);
holder.bindGoal(goal);
}
#Override
public int getItemCount() {
return mGoals.size();
}
}
////////////////////////////////////ADAPTER\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
///////////////////////////////////VIEW HOLDER\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
public class MyViewHolder extends RecyclerView.ViewHolder {
private TextView mTextView, importantTXT;
private CheckBox mCheckBox;
private Goal mGoal;
private ImageView imgView;
public MyViewHolder(View itemView) {
super(itemView);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
AppCompatActivity context = (AppCompatActivity) v.getContext();
FragmentManager manager = context.getSupportFragmentManager();
Edit_PopUp dialog = Edit_PopUp.newInstance(mGoal);
dialog.setTargetFragment(fragment, 2);
dialog.show(manager, "EditDialog");
}
});
itemView.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
//Add delete thingy
AppCompatActivity context = (AppCompatActivity) v.getContext();
FragmentManager manager = context.getSupportFragmentManager();
MoreOptions_PopUp dialog = MoreOptions_PopUp.newInstance(mGoal);
dialog.setTargetFragment(fragment, 1);
dialog.show(manager, "GoalDialog");
return true;
}
});
mTextView = (TextView) itemView.findViewById(R.id.text);
mCheckBox = (CheckBox) itemView.findViewById(R.id.checkbox);
imgView = (ImageView) itemView.findViewById(R.id.imageView);
importantTXT = (TextView) itemView.findViewById(R.id.Important_textView);
mCheckBox.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View v) {
mGoal.setFinished(mCheckBox.isChecked());
mDatabaseController.updateGoal(mGoal);
if (mCheckBox.isChecked() == true) {
boolean value = checkWinning(mGoals,context);
PlaySound(value, mGoal.ismIsImportant(), v);
}
}
});
}
public void bindGoal(Goal goal) {
mGoal = goal;
mCheckBox.setChecked(mGoal.isFinished());
mTextView.setText(mGoal.getmGoalName());
if (mGoal.ismIsImportant()) {
imgView.setImageResource(R.mipmap.ic_stars_pressed);
importantTXT.setText(R.string.isImportant);
}
}
public boolean checkWinning(ArrayList<Goal> goals, Context context) {
for (int i = 0; i < goals.size(); i++) {
if (goals.get(i).isFinished() == false) {
return false;
}
}
return true;
}
public void PlaySound(Boolean winningSound, boolean isImportant, View view) {
if(winningSound){
mediaPlayer = MediaPlayer.create(context,R.raw.victory);
Snackbar snackbar = Snackbar.make(view, R.string.completion, Snackbar.LENGTH_LONG);
snackbar.show();
mediaPlayer.start();
}else {
if (isImportant) {
mediaPlayer = MediaPlayer.create(context, R.raw.collect);
mediaPlayer.start();
Snackbar snackbar = Snackbar.make(view, R.string.congrats, Snackbar.LENGTH_SHORT);
snackbar.show();
} else {
mediaPlayer = MediaPlayer.create(context, R.raw.success);
Snackbar snackbar = Snackbar.make(view, R.string.lessCongrats, Snackbar.LENGTH_SHORT);
snackbar.show();
mediaPlayer.start();
}
}
}
}
////////////////////////////////////VIEW HOLDER\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
public MyAdapter getAdapter() {
return adapter;
}
public Fragment getFragment() {
return fragment;
}
}
Here is my adapter class that plays sounds OnClick and binds the view to the Recyclerview.
Any help would be greatly appreciated!
The problem with the stars displayed in every row will be caused because you might be setting them when needed but not hiding them when not needed.
You will have to implement something like this in the getView() method of your adapter.
ImageView starView = (ImageView) v.findViewById(R.id.starView);
starView.setVisibility(goals.get(position).isSpecial() ? View.Visible : View.Gone);