I have a View Pager that contains 2 Fragments which have several Gauges that need to be animated.
I would like to switch on or off the Countdown Timer for animating these gauges, from the app Actionbar menu.
Attached is my code:
Menu Item from FragmentActivity:
#Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.main, menu);
demoItem = menu.findItem(R.id.menu_demo);
demoItem.setChecked(false);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item)
{
switch (item.getItemId())
{
case R.id.menu_enabler:
Intent enablerIntent = new Intent();
PackageManager manager = getPackageManager();
try
{
enablerIntent = manager
.getLaunchIntentForPackage("com.openxc.enabler");
enablerIntent.addCategory(Intent.CATEGORY_LAUNCHER);
startActivity(enablerIntent);
}
catch (Exception e)
{
String packageName = OPENXC_ENABLER;
Uri uri = Uri.parse("market://details?id=" + packageName);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
}
break;
case R.id.menu_demo:
if (demoItem.isChecked())
{
demoItem.setChecked(false);
// onDemoActivated.activateDemo(false);
}
else
{
demoItem.setChecked(true);
// onDemoActivated.activateDemo(true);
}
break;
case R.id.menu_settings:
break;
case R.id.menu_app_info:
break;
default:
break;
}
return false;
}
}
And the fragment that I animate Fragment:
public class FragmentGaugeCartoon extends Fragment {
public static final String ARG_OBJECT = "object";
public static final String TAG = "GaugeCartoon";
private Context context;
private final Random RAND = new Random();
private GaugeView gauge1;
private GaugeView gauge2;
private GaugeView gauge3;
// getter for returning fragment instance
public static FragmentGaugeCartoon getInstance() {
return new FragmentGaugeCartoon();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// The last two arguments ensure LayoutParams are inflated
// properly.
View rootView = inflater.inflate(R.layout.fragment_gauge_cartoon,
container, false);
gauge1 = (GaugeView) rootView.findViewById(R.id.gauge_view1);
gauge2 = (GaugeView) rootView.findViewById(R.id.gauge_view2);
gauge3 = (GaugeView) rootView.findViewById(R.id.gauge_view3);
gaugeTimer.start();
return rootView;
}
// dountdown timer for the demo
private final CountDownTimer gaugeTimer = new CountDownTimer(30000, 2000) {
#Override
public void onTick(long arg0) {
gauge1.setTargetValue(RAND.nextInt(101));
gauge2.setTargetValue(RAND.nextInt(201));
gauge3.setTargetValue(RAND.nextInt(2000));
}
#Override
public void onFinish() {
gaugeTimer.start();
}
};
#Override
public void onResume() {
super.onResume();
}
#Override
public void onPause() {
super.onPause();
}
#Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (isVisibleToUser) {
} else {
}
}
}
Solved.I have implemented a random number chooser.
Related
I am having a Viewpager where i am loading data of different categories. I want to show a custom dialog popup whenever user stays on a particular category for 5 seconds or more asking the user if he/she wants to share the content. For that i have used a custom dialog and am hiding/showing based on the condition.
But the problem is, that if i want to open the dialog if the user stays on Viewpager item at position let's say 3, the dialog is opening for the Viewpager item at position 4.
I am not sure why it's referencing the wrong Viewpager item.
I am including the code of Adapter class for the reference.
ArticleAdapter.java
public class ArticleAdapter extends PagerAdapter {
public List<Articles> articlesListChild;
private LayoutInflater inflater;
Context context;
View rootView;
View customArticleShareDialog, customImageShareDialog;
public int counter = 0;
int contentType = 0;
int userId;
public ArticleAdapter(Context context, List<Articles> articlesListChild, int userId) {
super();
this.context = context;
this.userId = userId;
this.articlesListChild = articlesListChild;
}
#Override
public int getCount() {
return articlesListChild.size();
}
#Override
public void destroyItem(View collection, int position, Object view) {
((ViewPager) collection).removeView((View) view);
}
private Timer timer;
private TimerTask timerTask;
public void startTimer() {
timer = new Timer();
initializeTimerTask();
timer.schedule(timerTask, 5*1000, 5*1000);
}
private void initializeTimerTask() {
timerTask = new TimerTask() {
public void run() {
switch (contentType) {
case 1:
showShareDialog("articles");
break;
case 2:
showShareDialog("images");
break;
default :
// Do Nothing
}
}
};
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
#SuppressLint("ClickableViewAccessibility")
#Override
public Object instantiateItem(ViewGroup container, final int position) {
inflater = LayoutInflater.from(container.getContext());
View viewLayout = inflater.inflate(R.layout.article_single_item, null, false);
final ImageView contentIv, imageContentIv;
final TextView sharingTextTv;
final LinearLayout articleShareBtn, articlesLayout, imagesLayout, customArticleShareDialog, customImageShareDialog;
contentIv = viewLayout.findViewById(R.id.content_iv);
articleShareBtn = viewLayout.findViewById(R.id.article_share_btn);
articlesLayout = viewLayout.findViewById(R.id.articles_layout);
imagesLayout = viewLayout.findViewById(R.id.images_layout);
imageContentIv = viewLayout.findViewById(R.id.image_content_iv);
sharingTextTv = viewLayout.findViewById(R.id.sharing_text_tv);
customArticleShareDialog = viewLayout.findViewById(R.id.articles_share_popup);
customImageShareDialog = viewLayout.findViewById(R.id.images_share_popup);
rootView = viewLayout.findViewById(R.id.post_main_cv);
viewLayout.setTag(rootView);
articleShareBtn.setTag(rootView);
// Images
if (articlesListChild.get(position).getArticleCatId() == 1) {
articlesLayout.setVisibility(GONE);
imagesLayout.setVisibility(View.VISIBLE);
RequestOptions requestOptions = new RequestOptions();
requestOptions.placeholder(R.drawable.placeholder);
Glide.with(context)
.setDefaultRequestOptions(requestOptions)
.load(articlesListChild.get(position).getArticleImage())
.into(imageContentIv);
imageContentIv.setScaleType(ImageView.ScaleType.FIT_XY);
sharingTextTv.setText("Found this image interesting? Share it with your friends.");
counter = 0;
startTimer();
// Articles
} else if (articlesListChild.get(position).getArticleCatId() == 2){
RequestOptions requestOptions = new RequestOptions();
requestOptions.placeholder(R.drawable.placeholder);
articlesLayout.setVisibility(View.VISIBLE);
Glide.with(context)
.setDefaultRequestOptions(requestOptions)
.load(articlesListChild.get(position).getArticleImage())
.into(contentIv);
contentIv.setScaleType(ImageView.ScaleType.FIT_XY);
sharingTextTv.setText("Found this article interesting? Share it with your friends.");
counter = 0;
startTimer();
}
container.addView(viewLayout, 0);
return viewLayout;
}
public void showShareDialog(String categoryType) {
if (categoryType.equalsIgnoreCase("articles")) {
new Handler(Looper.getMainLooper()).post(new Runnable() {
public void run() {
customArticleShareDialog.setVisibility(View.VISIBLE);
}
});
} else if (categoryType.equalsIgnoreCase("images")) {
new Handler(Looper.getMainLooper()).post(new Runnable() {
public void run() {
customImageShareDialog.setVisibility(View.VISIBLE);
}
});
}
}
}
ArticleActivity.java
public class ArticleActivity extends AppCompatActivity {
#BindView(R.id.toolbar)
Toolbar toolbar;
#BindView(R.id.drawer_layout)
DrawerLayout drawer;
#BindView(R.id.articles_view_pager)
ViewPager articlesViewPager;
#BindView(R.id.constraint_head_layout)
CoordinatorLayout constraintHeadLayout;
private ArticleAdapter articleAdapter;
private List<List<Articles>> articlesList = null;
private List<Articles> articlesListChild = new ArrayList<>();
private List<Articles> articlesListChildNew = new ArrayList<>();
SessionManager session;
Utils utils;
final static int MY_PERMISSIONS_WRITE_EXTERNAL_STORAGE = 1;
int userIdLoggedIn;
LsArticlesSharedPreference lsArticlesSharedPreference;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
ButterKnife.bind(this);
toolbar.setTitle("");
toolbar.bringToFront();
session = new SessionManager(getApplicationContext());
if (session.isLoggedIn()) {
HashMap<String, String> user = session.getUserDetails();
String userId = user.get(SessionManager.KEY_ID);
userIdLoggedIn = Integer.valueOf(userId);
} else {
userIdLoggedIn = 1000;
}
utils = new Utils(getApplicationContext());
String storedTime = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()).getString("lastUsedDate", "");
System.out.println("lastUsedDate : " + storedTime);
if (utils.isNetworkAvailable()) {
insertData();
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
toggle.getDrawerArrowDrawable().setColor(getResources().getColor(R.color.colorWhite));
drawer.addDrawerListener(toggle);
if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
MY_PERMISSIONS_WRITE_EXTERNAL_STORAGE);
}
articleAdapter = new ArticleAdapter(getApplicationContext(), articlesListChild, userIdLoggedIn);
toggle.syncState();
clickListeners();
toolbar.setVisibility(View.GONE);
} else {
Intent noInternetIntent = new Intent(getApplicationContext(), NoInternetActivity.class);
startActivity(noInternetIntent);
}
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
finishAffinity();
super.onBackPressed();
}
}
#Override
public void onStart() {
super.onStart();
}
#Override
public void onStop() {
super.onStop();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.home, menu);
return true;
}
#Override
public boolean onSupportNavigateUp() {
finish();
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_refresh:
articleAdapter.notifyDataSetChanged();
insertData();
Toast.makeText(this, "Refreshed", Toast.LENGTH_SHORT).show();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
#SuppressLint("ClickableViewAccessibility")
public void clickListeners() {
}
private void insertData() {
Intent intent = new Intent(getBaseContext(), OverlayService.class);
startService(intent);
final SweetAlertDialog pDialog = new SweetAlertDialog(ArticleActivity.this, SweetAlertDialog.PROGRESS_TYPE);
pDialog.getProgressHelper().setBarColor(getResources().getColor(R.color.colorPrimary));
pDialog.setTitleText("Loading");
pDialog.setCancelable(false);
pDialog.show();
Api.getClient().getHomeScreenContents(userIdLoggedIn, new Callback<ArticlesResponse>() {
#Override
public void success(ArticlesResponse articlesResponse, Response response) {
articlesList = articlesResponse.getHomeScreenData();
if (!articlesList.isEmpty()) {
for (int i = 0; i < articlesList.size(); i++) {
articlesListChildNew = articlesList.get(i);
articlesListChild.addAll(articlesListChildNew);
}
articleAdapter = new ArticleAdapter(getApplicationContext(), articlesList, articlesListChild, userIdLoggedIn, toolbar);
articlesViewPager.setAdapter(articleAdapter);
articleAdapter.notifyDataSetChanged();
pDialog.dismiss();
} else {
List<Articles> savedArticles = lsArticlesSharedPreference.getFavorites(getApplicationContext());
if (!savedArticles.isEmpty()) {
articleAdapter = new ArticleAdapter(getApplicationContext(), articlesList, savedArticles, userIdLoggedIn, toolbar);
articlesViewPager.setAdapter(articleAdapter);
articleAdapter.notifyDataSetChanged();
pDialog.dismiss();
} else {
Api.getClient().getAllArticles(new Callback<AllArticlesResponse>() {
#Override
public void success(AllArticlesResponse allArticlesResponse, Response response) {
articlesListChild = allArticlesResponse.getArticles();
articleAdapter = new ArticleAdapter(getApplicationContext(), articlesList, articlesListChild, userIdLoggedIn, toolbar);
articlesViewPager.setAdapter(articleAdapter);
articleAdapter.notifyDataSetChanged();
};
#Override
public void failure(RetrofitError error) {
Log.e("articlesData", error.toString());
}
});
pDialog.dismiss();
}
}
}
#Override
public void failure(RetrofitError error) {
pDialog.dismiss();
Toast.makeText(ArticleActivity.this, "There was some error fetching the data.", Toast.LENGTH_SHORT).show();
}
});
}
}
Issue reason:
You face this issue because the viewpager preload fragments in background. It means that when you see 3rd fragment, the viewpager is instantiating 4th. Due to this workflow your timer for 3rd screen is cancelled and timer for 4th screen is started. Check out this link to understand what is going on.
Solution:
I would do next:
Then set page change listener for your adapter. How to do it
In this listener you can get current page and start timer for this page (and cancel timer for previously visible page).
You don't need to call startTimer() method when you instantiate item in instantiateItem() method.
I've been facing issues with my MoviesApp for a while now and I feel that I've exhausted all my knowledge on this; I am quite new with Android so bear with me :-)
MoviesApp is a simple movie listing app, in which the user can scroll through the list of films, see details for each one and save their favorites in an SQLite DB.
I use SharedPreference to sort movies based by popularity, rating and favorites (the only list saved in the database), but when I change through each one, the UI is not updating at all.
I am really stuck and honestly, I could do with another pair of eyes, because, even if the answer is staring me in the face, I wouldn't be able to see it 😫😫😫
I pasted the link to the project below:
https://drive.google.com/file/d/1SweLpwfo5RntXrbtLPP3N_xS1bVs32Ze/view?usp=sharing
Thank you!!
Update: I believe the problem would in the MainActivity class, where the RecyclerView Loader is declared - specifically in onLoadFinished().
#SuppressWarnings({"WeakerAccess", "unused", "CanBeFinal"})
public class MainActivity extends AppCompatActivity implements
LoaderManager.LoaderCallbacks,
MovieAdapter.MovieDetailClickHandler, SwipeRefreshLayout.OnRefreshListener {
private static final String TAG = MainActivity.class.getSimpleName();
public static final String MOVIE_ID = "movieId";
private final static String LIFECYCLE_CALLBACKS_LAYOUT_MANAGER_KEY = "KeyForLayoutManagerState";
Parcelable savedLayoutManagerState;
public RecyclerView movieListRV;
private GridLayoutManager gridLayoutManager =
new GridLayoutManager(this, 1);
Context context = this;
// Loader IDs for loading the main API and the poster API, respectively
private static final int ID_LOADER_LIST_MOVIES = 1;
private static final int ID_LOADER_CURSOR = 2;
// adapter
private MovieAdapter adapter;
// detect internet connection
NetworkDetection networkDetection;
// swipe to refresh
SwipeRefreshLayout swipeRefreshLayout;
// sortOption
String sortOption = null;
// movie projection
private final String[] projection = new String[]{
MoviesContract.MovieEntry.COLUMN_MOVIE_POSTER,
MoviesContract.MovieEntry.COLUMN_MOVIE_ID
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Stetho.initializeWithDefaults(this);
Toolbar toolbar = findViewById(R.id.settings_activity_toolbar);
setSupportActionBar(toolbar);
toolbar.setTitleTextColor(Color.WHITE);
networkDetection = new NetworkDetection(this);
swipeRefreshLayout = findViewById(R.id.discover_swipe_refresh);
swipeRefreshLayout.setOnRefreshListener(MainActivity.this);
swipeRefreshLayout.setColorScheme(android.R.color.holo_red_dark);
movieListRV = findViewById(R.id.recycler_view_movies);
movieListRV.setLayoutManager(gridLayoutManager);
movieListRV.setHasFixedSize(true);
ViewTreeObserver viewTreeObserver = movieListRV.getViewTreeObserver();
viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
calculateSize();
}
});
adapter = new MovieAdapter(this, this);
movieListRV.setAdapter(adapter);
RecyclerViewItemDecorator itemDecorator = new RecyclerViewItemDecorator(context,
R.dimen.item_offset);
movieListRV.addItemDecoration(itemDecorator);
final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences
(context);
SharedPreferences.OnSharedPreferenceChangeListener preferenceChangeListener = new
SharedPreferences.OnSharedPreferenceChangeListener() {
#Override
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
adapter.deleteItemsInList();
onRefresh();
if (key.equals(getString(R.string.pref_sort_by_key))) {
initializeloader();
}
}
};
preferences.registerOnSharedPreferenceChangeListener(preferenceChangeListener);
initializeloader();
}
private static final int sColumnWidth = 200;
private void calculateSize() {
int spanCount = (int) Math.floor(movieListRV.getWidth() / convertDPToPixels(sColumnWidth));
((GridLayoutManager) movieListRV.getLayoutManager()).setSpanCount(spanCount);
}
#SuppressWarnings("SameParameterValue")
private float convertDPToPixels(int dp) {
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
float logicalDensity = metrics.density;
return dp * logicalDensity;
}
#Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putParcelable(LIFECYCLE_CALLBACKS_LAYOUT_MANAGER_KEY, gridLayoutManager
.onSaveInstanceState());
}
#Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
if (savedInstanceState != null) {
savedLayoutManagerState = savedInstanceState.getParcelable
(LIFECYCLE_CALLBACKS_LAYOUT_MANAGER_KEY);
movieListRV.getLayoutManager().onRestoreInstanceState(savedLayoutManagerState);
}
}
#Override
public Loader onCreateLoader(int id, Bundle args) {
adapter.deleteItemsInList();
String urlMovieActivity;
switch (id) {
case ID_LOADER_CURSOR:
return new CursorLoader(context, MoviesContract.MovieEntry.MOVIES_CONTENT_URI,
projection, null, null, null);
case ID_LOADER_LIST_MOVIES:
urlMovieActivity = NetworkUtils.buildUrlMovieActivity(context, sortOption);
return new MovieLoader(this, urlMovieActivity);
default:
return null;
}
}
#Override
public void onLoadFinished(Loader loader, Object data) {
adapter.deleteItemsInList();
TextView noMoviesMessage = findViewById(R.id.no_movies_found_tv);
switch (loader.getId()) {
case ID_LOADER_CURSOR:
adapter.InsertList(data);
break;
case ID_LOADER_LIST_MOVIES:
//noinspection unchecked
List<MovieItem> movieItems = (List<MovieItem>) data;
if (networkDetection.isConnected()) {
noMoviesMessage.setVisibility(View.GONE);
adapter.InsertList(movieItems);
movieListRV.getLayoutManager().onRestoreInstanceState(savedLayoutManagerState);
} else {
noMoviesMessage.setVisibility(View.VISIBLE);
}
break;
}
adapter.notifyDataSetChanged();
}
#Override
public void onLoaderReset(Loader loader) {
switch (loader.getId()) {
case ID_LOADER_CURSOR:
adapter.InsertList(null);
break;
case ID_LOADER_LIST_MOVIES:
adapter.InsertList(null);
break;
}
}
#Override
public void onPostResume(Loader loader) {
super.onPostResume();
getLoaderManager().initLoader(ID_LOADER_CURSOR, null, this);
}
#Override
public void onSelectedItem(int movieId) {
Intent goToDetailActivity = new Intent(this, DetailMovieActivity.class);
goToDetailActivity.putExtra(MOVIE_ID, movieId);
startActivity(goToDetailActivity);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_general, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem menuItem) {
int id = menuItem.getItemId();
if (id == R.id.action_general_settings) {
Intent goToSetting = new Intent(this, SettingsActivity.class);
startActivity(goToSetting);
return true;
} else if (id == R.id.action_refresh) {
onRefresh();
}
return super.onOptionsItemSelected(menuItem);
}
/**
* Called when a swipe gesture triggers a refresh.
*/
#Override
public void onRefresh() {
adapter.deleteItemsInList();
swipeRefreshLayout.setRefreshing(false);
restartloader();
adapter.notifyDataSetChanged();
}
private void restartloader() {
adapter.deleteItemsInList();
if (MoviePreferences.getSortByPreference(context).equals(getString(R.string
.pref_sort_by_favourite))) {
getLoaderManager().restartLoader(ID_LOADER_CURSOR, null, MainActivity
.this);
}
if (MoviePreferences.getSortByPreference(context).equals(getString(R.string
.pref_sort_by_popularity))) {
sortOption = NetworkUtils.MOST_POPULAR_PARAM;
getLoaderManager().restartLoader(ID_LOADER_LIST_MOVIES, null,
MainActivity.this);
}
if (MoviePreferences.getSortByPreference(context).equals(getString(R.string
.pref_sort_by_rating))) {
sortOption = NetworkUtils.TOP_RATED_PARAM;
getLoaderManager().restartLoader(ID_LOADER_LIST_MOVIES, null,
MainActivity.this);
}
adapter.notifyDataSetChanged();
}
public void initializeloader() {
restartloader();
if (MoviePreferences.getSortByPreference(context).equals(getString(R.string
.pref_sort_by_favourite))) {
getLoaderManager().initLoader(ID_LOADER_CURSOR, null, MainActivity
.this);
}
if (MoviePreferences.getSortByPreference(context).equals(getString(R.string
.pref_sort_by_popularity))) {
onRefresh();
sortOption = NetworkUtils.MOST_POPULAR_PARAM;
getLoaderManager().initLoader(ID_LOADER_LIST_MOVIES, null,
MainActivity.this);
}
if (MoviePreferences.getSortByPreference(context).equals(getString(R.string
.pref_sort_by_rating))) {
onRefresh();
sortOption = NetworkUtils.TOP_RATED_PARAM;
getLoaderManager().initLoader(ID_LOADER_LIST_MOVIES, null,
MainActivity.this);
}
adapter.notifyDataSetChanged();
}
}
I am creating an android app, where I'll be asking for multiple types of questions using RadioButtons. I don't want to make multiple Activities for these questions. Can anyone please tell me how to do that with a short example, of at least two questions?
You can use multiples fragments... or call the activity itself multiple times...
I did an app like yours and i choose the first method!
This is some fragment of a project that i wrote, and the activity that manipulate it, you will have to change it according to your needs.
Activity
public class CollectActivity extends FragmentActivity {
MyPageAdapter pageAdapter;
NonSwipeableViewPager pager;
SpringIndicator springIndicator;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_collect);
List<Fragment> fragments = getFragments();
pager = (NonSwipeableViewPager) findViewById(R.id.view_pager);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
PagerModelManager manager = new PagerModelManager();
manager.addCommonFragment(fragments, getTitles());
ModelPagerAdapter adapter = new ModelPagerAdapter(getSupportFragmentManager(), manager);
pager.setAdapter(adapter);
springIndicator = (SpringIndicator) findViewById(R.id.indicator);
springIndicator.setViewPager(pager);
springIndicator.setOnTabClickListener(new TabClickListener() {
#Override
public boolean onTabClick(int position) {
return false;
}
});
}
private List<Fragment> getFragments() {
List<Fragment> fList = new ArrayList<Fragment>();
fList.add(CollectFragment.newInstance("Fragment 1"));
fList.add(CollectFragment.newInstance("Fragment 2"));
fList.add(CollectFragment.newInstance("Fragment 3"));
//add your fragments with a loop
return fList;
}
private List<String> getTitles() {
return Lists.newArrayList("1", "2", "3");
}
public void swipeFragment() {
pager.setCurrentItem(pager.getCurrentItem() + 1);
}
public int getFragment() {
return pager.getCurrentItem();
}
}
Fragment
public class CollectFragment extends Fragment {
private Button openButton;
private Button confirmationCloseButton;
private Button yesRenew;
private Button noRenew;
private BroadcastReceiver udpMessages;
public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
public static final CollectFragment newInstance(String message) {
CollectFragment f = new CollectFragment();
Bundle bdl = new Bundle(1);
bdl.putString(EXTRA_MESSAGE, message);
f.setArguments(bdl);
return f;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
String message = getArguments().getString(EXTRA_MESSAGE);
View v = null;
if (message.compareTo("Fragment 1") == 0) {
v = inflater.inflate(R.layout.fragment_collect_open, container, false);
openButton = (Button) v.findViewById(R.id.open_button);
openButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i2 = new Intent();
i2.setComponent(new ComponentName("qira.com.locker", "qira.com.locker.Service.MessageService"));
i2.putExtra("Message", "CONFIRM_LOCKER_1_CLOSED");
getContext().startService(i2);
}
});
}
if (message.compareTo("Fragment 2") == 0) {
v = inflater.inflate(R.layout.fragment_collect_close, container, false);
confirmationCloseButton = (Button) v.findViewById(R.id.confirmation_close_button);
confirmationCloseButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i2 = new Intent();
i2.setComponent(new ComponentName("qira.com.locker", "qira.com.locker.Service.MessageService"));
i2.putExtra("Message", "OPEN_LOCKER_1");
getContext().startService(i2);
}
});
}
if (message.compareTo("Fragment 3") == 0) {
v = inflater.inflate(R.layout.fragment_collect_renew, container, false);
yesRenew = (Button) v.findViewById(R.id.yes_button);
noRenew = (Button) v.findViewById(R.id.no_button);
yesRenew.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
((CollectActivity) getActivity()).swipeFragment();
}
});
noRenew.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i = new Intent(getContext(), ReserveActivity.class);
startActivity(i);
}
});
}
return v;
}
#Override
public void onResume() {
super.onResume();
udpMessages = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction() != null && intent.getAction().equals("UDP.MESSAGES.COLLECT")) {
if (intent.getExtras().getString("Type").compareTo("OPEN_LOCKER_1-LOCKER_OPENED") == 0) {
if (((CollectActivity) getActivity()).getFragment() != 0) { // onCreateView called twice, dont know why... workaround to solve this problem
((CollectActivity) getActivity()).swipeFragment();
}
}
if (intent.getExtras().getString("Type").compareTo("CONFIRM_LOCKER_1_CLOSED-TRUE") == 0) {
if (((CollectActivity) getActivity()).getFragment() != 1) { // onCreateView called twice, dont know why... workaround to solve this problem
((CollectActivity) getActivity()).swipeFragment();
}
}
}
}
};
getContext().registerReceiver(udpMessages, new IntentFilter("UDP.MESSAGES.COLLECT"));
}
#Override
public void onPause() {
super.onPause();
getContext().unregisterReceiver(udpMessages);
}
#Override
public void onDestroyView() {
super.onDestroyView();
}
}
I have a problem when I want to use getApplication() for this class, error is take plaaaaaaace...what should I use instead of getApplication() (Becaus I want to use the method of TestClass is named setNamePermit) or how I should setNamePermit() method of test class.
public class CustomSwipeAdapter01 extends PagerAdapter{
private int[] image_Resources = {R.drawable.sample_01,R.drawable.sample_02,R.drawable.sample_03,R.drawable.sample_04,R.drawable.sample_05,R.drawable.sample_06,R.drawable.sample_07};
private Context ctx;
private LayoutInflater layoutInflater;
public TestClass app;
public CustomSwipeAdapter01(Context ctx) {
this.ctx = ctx;
}
#Override
public int getCount() {
return image_Resources.length;
}
#Override
public boolean isViewFromObject(View view, Object o) {
return (view == (RelativeLayout) o);
}
#Override
public Object instantiateItem(final ViewGroup container, final int position) {
layoutInflater=(LayoutInflater)ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View item_view=layoutInflater.inflate(R.layout.activity_story01,container,false);
ImageView imageView=(ImageView)item_view.findViewById(R.id.image_view);
TextView textView=(TextView)item_view.findViewById(R.id.image_count);
Button btn_back_story01 = (Button) item_view.findViewById(R.id.btn_back_story01);
imageView.setImageResource(image_Resources[position]);
int itemNo=position+1;
textView.setText(itemNo + "/" + getCount());
container.addView(item_view);
//what should use instead of getApplication() in below line:
app = (TestClass)getApplication();
btn_back_story01.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
((Activity) ctx).finish();
app.setNewPermit(false);
ctx.startActivity(new Intent(ctx, MainStory01.class));
}
});
return item_view;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((RelativeLayout)object);
}
}
Test Class is:
public class TestClass extends Application {
public Boolean getMedia_state() {
return media_state;
}
public void setMedia_state(Boolean media_state) {
this.media_state = media_state;
}
Boolean media_state;
Boolean checkPlaying;
public Boolean getNewPermit() {
return newPermit;
}
public void setNewPermit(Boolean newPermit) {
this.newPermit = newPermit;
}
Boolean newPermit;
MediaPlayer media;
#Override
public void onCreate() {
super.onCreate();
setMedia_state(true);
setNewPermit(true);
media = new MediaPlayer();
media = MediaPlayer.create(getApplicationContext(), R.raw.music);
}
public void musicRestart() {
media = MediaPlayer.create(getApplicationContext(), R.raw.music);
media.start();
media.setLooping(true);
}
public void musicPlay() {
media.start();
media.setLooping(true);
}
public boolean checkPlaying() {
if (media.isPlaying()) {
checkPlaying = true;
} else {
checkPlaying = false;
}
return checkPlaying;
}
public void musicStop() {
media.stop();
}
}
TestClass tc = new TestClass();
Accessing methods in TestClass:
tc.setNewPermit(false);
UPDATE: in your pager adapter, you can now pass any of those values around. For example, change your btn_back_story01 onClick() to:
btn_back_story01.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(CustomSwipeAdapter01.this, MainStory01.class);
intent.putExtra("is_new_permit", tc.getNewPermit());
startActivity(intent);
}
});
In MainStory01 activity's onCreate() you can now get the extras passed in your Intent, via Bundle...
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle bundle = getIntent().getExtras();
if(bundle != null) {
boolean isNewPermit = bundle.getBoolean("is_new_permit");
}
}
There may be some errors in the code, I am not at my work computer at the moment, but this should give you an idea of how to proceed.
I'm stuck with communication between activity and fragment using interface. I have created activity with child fragment. I wanna do some stuff with continuous thread defined in activity and during that thread when I'm getting some result at that time I wanna trigger to child fragment to do something.
My Container Activity
public class MySpaceActivity extends BaseDrawerActivity {
private OnSetLastSeenListener mListner;
public static Thread mThread = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setHeaders(Const.MY_SPACE);
super.setSubmenus(Const.MY_SPACE,
Utils.getSubmenuList(Const.MY_SPACE, MySpaceActivity.this),
submenuBean);
// super.attachFragment(submenuBean);
}
#Override
public void setHeaderSubMenu(SubmenuBean subMenuBean) {
// txt_submenu.setText(subMenuBean.getSubmenu_name());
this.submenuBean = subMenuBean;
Log.print("::::: setHeaderSubMenu ::::");
super.attachFragment(submenuBean);
}
public void setsubFragment(SubmenuBean subMenuBean) {
this.submenuBean = subMenuBean;
super.attachSubFragment(submenuBean);
}
#Override
public void onBackPressed() {
super.onBackPressed();
popLastFragment();
}
private void popLastFragment() {
if (super.getNumberOfChilds() > 1) {
super.popSubFragment();
} else {
finish();
}
}
#Override
protected Fragment getFragement() {
StudentsFragment fragment = new StudentsFragment(Const.MY_SPACE,
getSubmenubean());
return fragment;
}
public SubmenuBean getSubmenubean() {
return submenuBean;
}
#Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
mThread = new Thread(new CountDownTimer(MySpaceActivity.this));
mThread.start();
}
#Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
if (mThread.isAlive()) {
mThread.interrupt();
mThread = null;
}
}
public void updateLastSeen(){
Log.print("::::::Call Interface::::::");
mListner.updateLastSeen();
}
class CountDownTimer implements Runnable {
private Context mContext;
private JSONObject mJsonObject;
private JSONArray mJsonArray;
public CountDownTimer(Context mContext) {
this.mContext = mContext;
}
// #Override
public void run() {
while (!Thread.currentThread().isInterrupted()) {
try {
HttpChatLastSeen mChat = new HttpChatLastSeen();
mJsonObject = mChat.Http_ChatLastSeen(mContext);
String mResult = mJsonObject.getString("Result");
if (mResult.equalsIgnoreCase(String
.valueOf(Const.RESULT_OK))) {
mJsonArray = mJsonObject.getJSONArray("UserData");
for (int i = 0; i < mJsonArray.length(); i++) {
mJsonObject = mJsonArray.getJSONObject(i);
new DbStudentMasterBll(mContext).update(
"last_seen", mJsonObject
.getString("LastSeen"), Integer
.parseInt(mJsonObject
.getString("UserId")));
}
} else {
Log.print("MY LAST SEEN Response : "
+ mJsonObject.toString());
}
updateLastSeen();
Thread.sleep(15000);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
} catch (Exception e) {
Log.print("ChatLastSeenThread : ", e.getMessage());
}
}
}
}
}
My Child Fragment With Interface :
public class StudentsFragment extends Fragment implements OnSetLastSeenListener{
TextView txt_submenu;
ListView list_students;
SubmenuBean submenuBean;
int Mainmenu;
MySpaceActivity mMySpaceActivity;
ArrayList<DbStudentMasterBean> studentsList;
StudentsAdapter mAdapter = null;
OnSetLastSeenListener mListner;
public StudentsFragment() {
super();
}
public StudentsFragment(int Mainmenu, SubmenuBean submenuBean) {
this.submenuBean = submenuBean;
this.Mainmenu = Mainmenu;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_students, container,
false);
mMySpaceActivity = (MySpaceActivity) getActivity();
txt_submenu = (TextView) view.findViewById(R.id.txt_submenu);
txt_submenu.setText(submenuBean.getSubmenu_name());
txt_submenu.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mMySpaceActivity.openDrawer();
}
});
list_students = (ListView) view.findViewById(R.id.list_colleagues);
studentsList = new DbStudentMasterBll(getActivity()).getAllRecords();
mAdapter = new StudentsAdapter(getActivity(), studentsList, handler);
list_students.setAdapter(mAdapter);
list_students.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
DbStudentMasterBean bean = (DbStudentMasterBean) parent
.getAdapter().getItem(position);
Message msg = new Message();
msg.what = CHAT;
msg.obj = bean;
handler.sendMessage(msg);
}
});
return view;
}
Handler handler = new Handler() {
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case CHAT:
submenuBean.setTag(VIEWCHATSTUDENT);
DbStudentMasterBean bean = (DbStudentMasterBean) msg.obj;
mMySpaceActivity.setsubFragment(submenuBean);
break;
}
};
};
#Override
public void updateLastSeen() {
// TODO Auto-generated method stub
Log.print("!!!!!!!!!Refresh Adapter!!!!!!!!!!!");
mAdapter.notifyDataSetChanged();
}
}
My Interface :
public interface OnSetLastSeenListener {
public void updateLastSeen();
}
So I have implemented interface OnSetLastSeenListener with my child fragment StudentsFragment . Now I'm calling method of tht interface updateLastSeen() from my container activity with thread. But it is not getting trigger to child fragment where I have implemented interface. So I don't know whether it is good way to communicate or not? Let me take your help to suggest on this solution or best way to communicate from child fragment to parent activity.
Thanks,
It is better to use interface when you want to communicate something from Fragment to Activity and not vice versa.
In your case, you can directly call the method in Fragment from Activity through fragment object. No need to use interface.
Something like this (For static fragments)
StudentsFragment fragment = (StudentsFragment) getFragmentManager()
.findFragmentById(R.id.fragmentid);
if (fragment != null && fragment.isInLayout()) {
fragment.updateLastSeen();
}
For dynamic fragment you can use the fragment object directly.