I have a class that uses fragment, but I'm having trouble calling one of these activity . When I do it for my App . I want to click on the MsgFragment fragment.
Below is the main class and class I want to call.
public class ProfileActivity extends AppCompatActivity {
private static final String TAG = "ProfileActivity";
private FragmentManager fragmentManager;
private Fragment fragment = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
fragmentManager = getSupportFragmentManager();
final FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragment = new MenuFragment();
fragmentTransaction.replace(R.id.main_container_wrapper, fragment);
fragmentTransaction.commit();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
disableNavigationViewScrollbars(navigationView);
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.nav_perfil) {
fragment = new ProfileFragment();
} else if (id == R.id.nav_menu) {
fragment = new MenuFragment();
} else if (id == R.id.nav_notificacao) {
fragment = new MsgFragment();
} else if (id == R.id.nav_sobre) {
fragment = new SobreFragment();
} else if (id == R.id.nav_sair) {
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
startActivity(intent);
}
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.replace(R.id.main_container_wrapper, fragment);
transaction.commit();
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
assert drawer != null;
drawer.closeDrawer(GravityCompat.START);
return true;
}
});
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.profile, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
// Intent intent = new Intent(this,SairActivity.class);
// startActivity(intent);
AuthUI.getInstance()
.signOut(this)
.addOnCompleteListener(new OnCompleteListener<Void>() {
public void onComplete(@NonNull Task<Void> task) {
// user is now signed out
finish();
}
});
return true;
}
return super.onOptionsItemSelected(item);
}
private void disableNavigationViewScrollbars(NavigationView navigationView) {
if (navigationView != null) {
NavigationMenuView navigationMenuView = (NavigationMenuView) navigationView.getChildAt(0);
if (navigationMenuView != null) {
navigationMenuView.setVerticalScrollBarEnabled(false);
}
}
}
// implemntação de Firebase cloud messrgr
//-------------------------------------------------------------------
}
The class I want to appear after clicking on MsgFragment
public class MainActivity extends AppCompatActivity implements SharedPreferences.OnSharedPreferenceChangeListener {
private PayloadAdapter adapter;
private PresenceEventListener presenceEventListener;
private BroadcastReceiver tokenReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
updateSubtitle();
}
};
private BroadcastReceiver presenceReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
updateSubtitle();
supportInvalidateOptionsMenu();
}
};
private View emptyView;
private RecyclerView recyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initRecyclerView();
registerReceivers();
updateSubtitle();
}
@Override
protected void onResume() {
super.onResume();
updateSubtitle();
}
private void registerReceivers() {
Payload.registerOnSharedPreferenceChanges(this, this);
LocalBroadcastManager instance = LocalBroadcastManager.getInstance(this);
instance.registerReceiver(tokenReceiver, TokenFetcher.INTENT_FILTER);
instance.registerReceiver(presenceReceiver, PresenceEventListener.INTENT_FILTER);
presenceEventListener = new PresenceEventListener(this);
presenceEventListener.register();
}
private void unregisterReceivers() {
Payload.unregisterOnSharedPreferenceChanges(this, this);
LocalBroadcastManager instance = LocalBroadcastManager.getInstance(this);
instance.unregisterReceiver(tokenReceiver);
instance.unregisterReceiver(presenceReceiver);
presenceEventListener.unregister();
}
private void initRecyclerView() {
emptyView = findViewById(R.id.empty_view);
recyclerView = findViewById(R.id.recycler_view);
recyclerView.setHasFixedSize(false);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
adapter = new PayloadAdapter(Payload.fetchPayloads(this));
recyclerView.setAdapter(adapter);
ItemTouchHelper.SimpleCallback simpleItemTouchCallback = new ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT) {
@Override
public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
return false;
}
@Override
public void onSwiped(RecyclerView.ViewHolder viewHolder, int swipeDir) {
final int position = viewHolder.getAdapterPosition();
Payload.remove(MainActivity.this, adapter.getItem(position));
adapter.removeItemAtPosition(position);
onAdapterCountMightHaveChanged();
}
};
ItemTouchHelper itemTouchHelper = new ItemTouchHelper(simpleItemTouchCallback);
itemTouchHelper.attachToRecyclerView(recyclerView);
onAdapterCountMightHaveChanged();
}
private void updateSubtitle() {
//noinspection ConstantConditions
getSupportActionBar().setSubtitle(FirebaseInstanceId.getInstance().getToken());
}
@Override
protected void onDestroy() {
unregisterReceivers();
super.onDestroy();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
menu.findItem(R.id.action_presence).setIcon(presenceEventListener.isConnected() ? android.R.drawable.presence_online : android.R.drawable.presence_invisible);
menu.findItem(R.id.action_share_token).setVisible(!TextUtils.isEmpty(FirebaseInstanceId.getInstance().getToken()));
menu.findItem(R.id.action_delete_all).setVisible(adapter != null && adapter.getItemCount() > 0);
return super.onPrepareOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_share_token:
final String token = FirebaseInstanceId.getInstance().getToken();
if (token != null) {
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_TEXT, token);
startActivity(Intent.createChooser(intent, getString(R.string.menu_share_token)));
}
return true;
case R.id.action_delete_all:
Payload.removeAll(this);
adapter.removeAll();
onAdapterCountMightHaveChanged();
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
if (sharedPreferences.contains(key)) {
final Payload payload = Payload.with(key, sharedPreferences.getString(key, ""));
adapter.addPayload(payload);
recyclerView.smoothScrollToPosition(0);
onAdapterCountMightHaveChanged();
}
}
void onAdapterCountMightHaveChanged() {
int count = adapter != null ? adapter.getItemCount() : 0;
emptyView.setVisibility(count > 0 ? View.INVISIBLE : View.VISIBLE);
supportInvalidateOptionsMenu();
}
}