I have a recyclerview with an 30 images and on click of particular image i am opening a new activity which shows a different image.I have uploaded my images to a server and accessing the image from there. When my activity is opened on click ofrecyclerview` i am passing the position through intent so that i can know which image was clicked,then i am using switch case in my activity and load whatever image i want.I have written 30 cases of switch as i have 30 images.Is there any alternative to this.I don't want to use if and else if.
public class ModelLineUpAdapter extends RecyclerView.Adapter<ModelLineUpAdapter.MyViewHolder> {
private Context context;
private List<Bikers> bikersList;
public ModelLineUpAdapter(List<Bikers> bikersList,Context context) {
this.bikersList=bikersList;
this.context = context;
}
public static class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public ImageView bikesImageView;
public TextView nameTextView, priceTextView;
private Button brocheurebutton;
private final Context context;
public MyViewHolder(View itemView) {
super(itemView);
context = itemView.getContext();
bikesImageView = itemView.findViewById(R.id.bikelistitemImageview);
nameTextView = itemView.findViewById(R.id.bikelistitemname);
priceTextView = itemView.findViewById(R.id.bikelistitemprice);
brocheurebutton = itemView.findViewById(R.id.bikelistitembutton);
itemView.setOnClickListener(this);
}
#Override
public void onClick(View v) {
Intent intent = new Intent(context, ModelLineUpInnerActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("position",getAdapterPosition());
context.startActivity(intent);
}
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context).inflate(R.layout.bikelistitem, null);
return new MyViewHolder(view);
}
#Override
public void onBindViewHolder(MyViewHolder holder, int position) {
Bikers bikers = bikersList.get(position);
holder.nameTextView.setText(bikers.getBikename());
holder.priceTextView.setText(bikers.getBikeprice());
Glide.with(context).load(bikers.getBikeImageUrl()).into(holder.bikesImageView);
}
#Override
public int getItemCount() {
//Log.i(TAG, "getItemCount: "+bikersList.size());
return bikersList == null ? 0 : bikersList.size();
}
}
just pass image url with intent and recieve in your ModelLineUpInnerActivity
#Override
public void onClick(View v) {
Intent intent = new Intent(context, ModelLineUpInnerActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("position",getAdapterPosition());
intent.putExtra("IMG",bikersList.get(getAdapterPosition()).getBikeImageUrl());
context.startActivity(intent);
}
Related
So I have a recycler view with 2 texts and 1 image button. I want to click the image button and then open a new activity and transfering the text from the textViewADV1 to the next activity
My items .xml in my recyclerview consist of the following
<ImageButton
android:id="#+id/imageButton1"
android:clickable="true"
android:onClick="openActivity2"/>
<TextView
android:id="#+id/textViewADV1"
android:text="Line 1"/>
<TextView
android:id="#+id/textViewADV2"
android:text="Line 2"/>
My openActivity2() from Main Activity
public void openActivity2(View view)
{
Intent intentLoadNewActivity = new Intent(AdvancedResults.this,OpenSelectedAdvanced.class);
startActivity(intentLoadNewActivity);
}
I tried doing textViewADV1.getText().toString() but it only reads the text from the first item in the recycler view
My recycler adapter
public class AdvancedAdapter extends RecyclerView.Adapter<AdvancedAdapter.AdvancedViewHolder> {
private ArrayList<AdvancedItem> mAdvancedList;
public String mImage;
public static class AdvancedViewHolder extends RecyclerView.ViewHolder {
public ImageButton mImagebtn;
public TextView mTextView1;
public TextView mTextView2;
public AdvancedViewHolder(View itemView) {
super(itemView);
mImagebtn = itemView.findViewById(R.id.imageButtonADV);
mTextView1 = itemView.findViewById(R.id.textViewADV1);
mTextView2 = itemView.findViewById(R.id.textViewADV2);
}
}
public AdvancedAdapter(ArrayList<AdvancedItem> advancedList) {
mAdvancedList = advancedList;
}
#Override
public AdvancedViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.advanced_item, parent, false);
AdvancedViewHolder evh = new AdvancedViewHolder(v);
return evh;
}
#Override
public void onBindViewHolder(AdvancedViewHolder holder, int position) {
AdvancedItem currentItem = mAdvancedList.get(position);
holder.mTextView1.setText(currentItem.getText1());
holder.mTextView2.setText(currentItem.getText2());
mImage = "www.testImageURL.com";
Picasso.get().load(mImage).into(holder.mImagebtn);
}
#Override
public int getItemCount() {
return mAdvancedList.size();
}
}
First of all pass a context to your adapter when you initialize it:
//in the main activity that you initialize the adapter in
AdvancedAdapter adapter = new AdvancedAdapter(your_list , MainActivity.this);
Now change the constructor of AdvancedAdapter to accept context
public class AdvancedAdapter extends RecyclerView.Adapter<AdvancedAdapter.AdvancedViewHolder> {
private ArrayList<AdvancedItem> mAdvancedList;
private Context context;
.............
//constructor
public AdvancedAdapter(ArrayList<AdvancedItem> advancedList,Context context) {
mAdvancedList = advancedList;
this.context = context;
}
Now in onBindViewHolder in the AdvancedAdapter
#Override
public void onBindViewHolder(AdvancedViewHolder holder, int position) {
AdvancedItem currentItem = mAdvancedList.get(position);
holder.mTextView1.setText(currentItem.getText1());
holder.mTextView2.setText(currentItem.getText2());
mImage = "www.testImageURL.com";
Picasso.get().load(mImage).into(holder.mImagebtn);
//on click image button
hodler.mImagebtn.setOnclickListener(new View.OnClickListener(){
#Override
public void onClick(View view){
Intent intent = new Intent(context , OpenSelectedAdvanced.class);
intent.putExtra("data" , currentItem.getText1());
context.startActivity(intent);
}
});
}
To get the data from OpenSelectedAdvanced activity:
//in oncreate method:
Intent intent = getIntent();
//this is your text view text that came from the clicked image button
String transferedText = intent.getStringExtra("data");
If you have declared your onBindViewHolder() in your adapter class so why are you starting activity from MainActivity. You should add setOnclicklistenr() in onBindViewHolder() to achieve the desired result that you want that is in following way :
public class AdvancedAdapter extends RecyclerView.Adapter<AdvancedAdapter.AdvancedViewHolder> {
private ArrayList<AdvancedItem> mAdvancedList;
//one more thing you have to create Context field so that you can
//you can start the activity from any context (From Any activity)
private Context mContext;
public String mImage;
public static class AdvancedViewHolder extends RecyclerView.ViewHolder {
public ImageButton mImagebtn;
public TextView mTextView1;
public TextView mTextView2;
public AdvancedViewHolder(View itemView) {
super(itemView);
mImagebtn = itemView.findViewById(R.id.imageButtonADV);
mTextView1 = itemView.findViewById(R.id.textViewADV1);
mTextView2 = itemView.findViewById(R.id.textViewADV2);
}
}
public AdvancedAdapter(ArrayList<AdvancedItem> advancedList, Context mContext) {
mAdvancedList = advancedList;
this.mContext = mContext;
}
#Override
public AdvancedViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.advanced_item, parent, false);
AdvancedViewHolder evh = new AdvancedViewHolder(v);
return evh;
}
#Override
public void onBindViewHolder(AdvancedViewHolder holder, int position) {
AdvancedItem currentItem = mAdvancedList.get(position);
holder.mTextView1.setText(currentItem.getText1());
holder.mTextView2.setText(currentItem.getText2());
mImage = "www.testImageURL.com";
holder.mImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// Here You start your activity
Intent intent = new Intent(mContext, Activity2.class);
//you can putExtras here
mContext.startActivity(intent);
});
Picasso.get().load(mImage).into(holder.mImagebtn);
}
#Override
public int getItemCount() {
return mAdvancedList.size();
}
}
Now initialize this adapter in your activity where you implemented recyclerView And Send that arraylist into the parameters of that constructor of your adapter :) if did not understand yet you can try the tutorial on the link given below : https://www.youtube.com/watch?v=bIppSKk9afI
I want to start new activity and also passing JSON data to the new activity when i click an item on the recyclerview. i followed a video in youtube: https://www.youtube.com/watch?v=OfsiccfUWVc&index=6&list=PLaoF-xhnnrRW_FGeacuT1VLqnRMKfpp4v but the video didn't show how to go to new activity once i clicked the item on recyclerview. from the video, i wanted to click on the item and then new activity will bring me to the 'more detail page' about the item.
i have tried to do the intent but i am not sure how to call from the new main activity
this is my adapter code:
public class LonghouseAdapter extends RecyclerView.Adapter<LonghouseViewHolder> {
Context context;
List<LonghousesCategoryOne> longhousesCategoryOneList;
List<Category> categories;
private OnItemClickListener mlistener;
public LonghouseAdapter(Context context, List<LonghousesCategoryOne> longhousesCategoryOneList) {
this.context = context;
this.longhousesCategoryOneList = longhousesCategoryOneList;
}
#NonNull
#Override
public LonghouseViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(context).inflate(R.layout.longhouse_item_layout,null);
return new LonghouseViewHolder(itemView);
}
#Override
public void onBindViewHolder(#NonNull LonghouseViewHolder holder, final int position) {
holder.txt_price.setText(new StringBuilder("").append(longhousesCategoryOneList.get(position).Price));
holder.txt_longhouse_name.setText(new StringBuilder("").append(longhousesCategoryOneList.get(position).Name));
Picasso.with(context)
.load(longhousesCategoryOneList.get(position).Link)
.into(holder.img_longhouse);
holder.setItemClickListener(new IItemClickListener() {
#Override
public void onClick(View v) {
Common.currentCategory = categories.get(position);
context.startActivity(new Intent(context, descriptionsActivity.class));
}
});
}
#Override
public int getItemCount() {
return longhousesCategoryOneList.size();
}
}
this is my viewholder code:
public class LonghouseViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
ImageView img_longhouse;
TextView txt_longhouse_name, txt_price;
public void setItemClickListener(IItemClickListener itemClickListener) {
this.itemClickListener = itemClickListener;
}
IItemClickListener itemClickListener;
public LonghouseViewHolder(View itemView) {
super(itemView);
img_longhouse = (ImageView) itemView.findViewById(R.id.image_longhouse);
txt_longhouse_name = (TextView) itemView.findViewById(R.id.txt_longhouse_name);
txt_price = (TextView) itemView.findViewById(R.id.txt_longhouse_price);
itemView.setOnClickListener(this);
}
#Override
public void onClick(View v) {
itemClickListener.onClick(v);
}
}
in my descriptionActivity, how do i set the item to my xml view?so far i have done this.
public class descriptionsActivity extends AppCompatActivity {
retreatSecondApi mservice;
ImageView img_longhouse;
TextView txt_longhouse_description, txt_price;
Context context;
List<LonghousesCategoryOne> longhousesCategoryOneList;
CompositeDisposable compositeDisposable = new CompositeDisposable();
#Override
protected void onCreate(Bundle savedInstanceState) {
mservice = Common.getAPI();
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_descriptions);
img_longhouse = (ImageView)findViewById(R.id.placeImageView);
txt_longhouse_description = (TextView)findViewById(R.id.placeDescTextView);
txt_price = (TextView)findViewById(R.id.txt_longhouse_price);
txt_longhouse_description.setText()
}
}
Can anyone guide me on this? Thank you
As #rgaraisayev recommends in your onClick() listener uncomment the call to startActivity() i.e.
holder.setItemClickListener(new IItemClickListener() {
#Override
public void onClick(View v) {
Common.currentCategory = categories.get(position);
context.startActivity(new Intent(context, descriptionsActivity.class));
}
});
solved it, so in my holder view:
holder.setItemClickListener(new IItemClickListener() {
#Override
public void onClick(View v) {
Common.longhousedesc = longhousesCategoryOneList.get(position);
context.startActivity(new Intent(context, descriptionsActivity.class));
}
});
and in my new activity, i bind the data to my xml view like this:
txt_longhouse_description.setText(Common.longhousedesc.descriptions);
I have used CardView inside a RecyclerView in horizontal manner. Now what I want to do is, when user click on a card then the data which I have putted into the intent with the help of putExtra function should be passed to the next activity.
Here is the code
public class SectionListDataAdapter extends RecyclerView.Adapter<SectionListDataAdapter.SingleItemRowHolder> {
private List<Section> itemsList;
private Context mContext;
public SectionListDataAdapter(Context context, List<Section> itemsList) {
this.itemsList = itemsList;
this.mContext = context;
}
#Override
public SingleItemRowHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.list_single_card, null);
SingleItemRowHolder mh = new SingleItemRowHolder(v);
return mh;
}
#Override
public void onBindViewHolder(SingleItemRowHolder holder, int i) {
Section singleItem = itemsList.get(i);
holder.tvTitle.setText(singleItem.getName());
holder.tvAuthor.setText(singleItem.getAuthorname());
holder.tvPremium.setText(singleItem.getPremium());
Glide.with(mContext)
.load(singleItem.getImage()
.into(holder.itemImage);
}
#Override
public int getItemCount() {
return (null != itemsList ? itemsList.size() : 0);
}
public class SingleItemRowHolder extends RecyclerView.ViewHolder {
protected TextView tvTitle, tvAuthor, tvPremium;
protected ImageView itemImage;
public SingleItemRowHolder(final View view) {
super(view);
this.tvTitle = (TextView) view.findViewById(R.id.tvTitle1);
this.tvAuthor = (TextView) view.findViewById(R.id.tvTitle2);
this.tvPremium = (TextView) view.findViewById(R.id.txtSubText1);
this.itemImage = (ImageView) view.findViewById(R.id.itemImage);
view.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(v.getContext(), BooksDescription.class);
intent.putExtra("id", NavigationDrawer.ID.get());
mContext.startActivity(intent);
}
});
}
}
}
Here in the line intent.putExtra("id", NavigationDrawer.ID); NavigationDrawe.ID having 20 integer data. Now which function should I use to get the data of only those card which is clicked.
I've got a RecyclerView which is loading the content of my String Arrays which works fine, however I want to open a new Activity depending on which view they have pressed.
What I have done:
public class WinnersListAdapter extends RecyclerView.Adapter<WinnersListAdapter.WinnersCardViewHolder>
{
Context context;
LayoutInflater inflater;
List<ListLottery> lotteryList;
public WinnersListAdapter(List<ListLottery> loteries,Context context){
this.context = context;
this.lotteryList = loteries;
inflater = LayoutInflater.from(context);
}
#Override
public WinnersListAdapter.WinnersCardViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = inflater.inflate(R.layout.prevlotterycards_layout,parent,false);
// Toast.makeText(context,"Hi",Toast.LENGTH_SHORT).show();
WinnersListAdapter.WinnersCardViewHolder viewHolder = new WinnersListAdapter.WinnersCardViewHolder(v);
return viewHolder;
}
#Override
public void onBindViewHolder(WinnersListAdapter.WinnersCardViewHolder holder, int position) {
final ListLottery lottery = lotteryList.get(position);
holder.lottery_date.setText(lottery.getLotteryDate());
holder.lottery_date.setTag(holder);
holder.itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(context,"clicked--"+lottery.getLotteryId(),Toast.LENGTH_SHORT).show();
Intent intent = new Intent(context,WinnerActivity.class);
intent.putExtra("lotteryId",lottery.getLotteryId());
context.startActivity(intent);
}
});
}
#Override
public int getItemCount() {
return lotteryList.size();
}
class WinnersCardViewHolder extends RecyclerView.ViewHolder {
TextView lottery_date;
CardView card_lotteryList;
public WinnersCardViewHolder(View itemView) {
super(itemView);
lottery_date = (TextView) itemView.findViewById(R.id.l_lottery_date);
card_lotteryList = (CardView) itemView.findViewById(R.id.card_lotteryList);
}
}
}
I have read many articles to resolve it and did stuff according that but could not find any solution.
Actually, I can not answer your question because you didn't post your logcat but there are few things you can check :
1 - Check that your activity already declared in AndroidManifest.xml
2 - Check you context is the context of Activity or applicationContext ?
If is't not the context of Activity so you need to add flag
Intent i = new Intent(this, WinnerActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
I started in the android programming and and I encountered a problem when i tried to send data from my Adapter to an another activity
.
I want to show the content of "description" in my other activity when I click on an item.
MyAdapter class :
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
private final List<FakeNews> list = FakeNewsList.all;
#Override
public int getItemCount() {
return list.size();
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View view = inflater.inflate(R.layout.list_cell, parent, false);
return new MyViewHolder(view);
}
#Override
public void onBindViewHolder(MyViewHolder holder, int position) {
FakeNews pair = list.get(position);
holder.display(pair);
}
public class MyViewHolder extends RecyclerView.ViewHolder {
private final TextView name;
private final TextView description;
private FakeNews currentPair;
public MyViewHolder(final View itemView) {
super(itemView);
name = ((TextView) itemView.findViewById(R.id.name));
description = ((TextView) itemView.findViewById(R.id.description));
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(MyViewHolder.this ,Affich.class);
intent.putExtra("description", String.valueOf((description)));
startActivity(intent);
}
});
}
public void display(FakeNews pair) {
currentPair = pair;
name.setText(pair.title);
}
}
}
Can someone help me?
I assume that you do not really want to pass the TextView to your next activity, but the content which is shown in it. Also, you need to pass a Context to the Intent and startActivity() is a method of an activity, so you need to call it on the context:
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(view.getContext() ,Affich.class);
intent.putExtra("description", description.getText().toString());
view.getContext().startActivity(intent);
}
});
Pass the Context or Activity instance into your adapter class.
then while starting new Activity and suppose instance variable is mContext use like this-
Intent intent = new Intent(mContext ,Affich.class);
intent.putExtra("description", String.valueOf((description)));
mContext.startActivity(intent);
To pass value from TextView to your new activity, do this:
intent.putExtra("description", description.getText().toString());
on your new activity, get the description value using:
String descriptionValue = getIntent().getStringExtra("description");