Develop Reference

Conflict between activity home button and Dialogfragment home button id's

I have an acivity with appbar and a fullsecreen dialogfragment with appbar (that dialog is called from the activity).
I have set some action when the home button of the activity is pressed, and when the home button og the dialogfragment is pressed it shoud close the dialog.
I have notice that the two buttons have the same id (android.R.id.home). and aparently there is a conflict when the method "onOptionsItemSelected" is called because when I press the home button of the dialog it doesn't work, but if a remove the portion of the code on the activity (if id == android.R.id.home)
it works fine and the dialog dismiss.
What should I do?. is there way to prevent this conflict , maybe set a diferent id for the home button?
this is the method of the activity
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_logout) {
exitApp();
return true;
}
else if ((id == android.R.id.home) && searchActivated) {
drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED);
toggle.syncState();
searchActivated=false;
reload_fragment_data();
return true;
}
else if ((id == android.R.id.home) && (!searchActivated))
{
drawer.openDrawer(GravityCompat.START); // OPEN DRAWER
return true;
}
return super.onOptionsItemSelected(item);
}
this is the method of the dialogfragment
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_next) {
pager.setCurrentItem(pager.getCurrentItem() + 1);
updateTitle();
return true;
} else if (id==R.id.action_previous)
{
pager.setCurrentItem(pager.getCurrentItem() - 1);
updateTitle();
return true;
}
else if (id == android.R.id.home) {
dismiss();
return true;
}
return super.onOptionsItemSelected(item);
}

You can apply and try this solution in activity.
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();
Fragment fragment = getFragmentManager().findFragmentById(R.id.fragment_container);
//noinspection SimplifiableIfStatement
if (id == R.id.action_logout) {
exitApp();
return true;
}
else if ((id == android.R.id.home) && searchActivated && !(fragment instanceof DialogFragmentClassName)) {
drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED);
toggle.syncState();
searchActivated=false;
reload_fragment_data();
return true;
}
else if ((id == android.R.id.home) && (!searchActivated))
{
drawer.openDrawer(GravityCompat.START); // OPEN DRAWER
return true;
}
return super.onOptionsItemSelected(item);
}

Dismiss dialog causes activity finish

My PanelActivity contains a recyclerView with a list of items. Each item has a click event. This click opens DetailsActivity.
DetailsActivity has a floatingActionButton that opens a full screen dialog (my class DetailDialogFragment extends DialogFragment).
DetailDialogFragmenthas an Up/Home button with a dismiss.
The problem: If the user performs a click over the Up button, the dialog is dismissed, but also DetailsActivity disappear, and the app returns to the PanelActivity.
Possible reason: Under the Up button of the dialog is the Up button of the DetailsActivity. Is it possible to fire two click events when a dialog is over an activity and both have an Up button on the same place?
Edit: To show some code.
Open DetailsActivity from PanelActivity (clicking one item in the recyclerView).
Intent intent = new Intent(context, DetailsActivity.class);
intent.putExtra("headerCode", headerCode.getText());
context.startActivity(intent);
Up button in DetailsActivity.
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}
Open full screen dialog in DetailsActivity.
private void showCreateDetailDialog() {
FragmentManager fragmentManager = getSupportFragmentManager();
DetailDialogFragment newFragment = new DetailDialogFragment();
// The device is smaller, so show the fragment fullscreen
FragmentTransaction transaction = fragmentManager.beginTransaction();
// For a little polish, specify a transition animation
transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
// To make it fullscreen, use the 'content' root view as the container
// for the fragment, which is always the root view for the activity
transaction.add(android.R.id.content, newFragment)
.addToBackStack(null).commit();
}
And finally, Up button in DetailDialogFragment.
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.save) {
validateForm();
return true;
} else if (id == android.R.id.home) {
// handle close button click here
dismiss();
return true;
}
return super.onOptionsItemSelected(item);
}

I haven't tested it but I think the problem is here, where you call dismiss(). You may need a reference to the DialogFragment first. I think technically you're just calling this.dismiss(); where this equals the Activity you're working in.
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.save) {
validateForm();
return true;
} else if (id == android.R.id.home) {
// handle close button click here
dismiss(); // problem is with this call
return true;
}
return super.onOptionsItemSelected(item);
}
You could try something like this:
private DetailDialogFragment detailFragment;
private void showCreateDetailDialog() {
detailFragment = new DetailDialogFragment();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
transaction.add(android.R.id.content, newFragment).addToBackStack(null).commit();
}
and now inside onOptionsItemSelected():
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.save) {
validateForm();
return true;
} else if (id == android.R.id.home) {
// handle close button click here
detailFragment.dismiss();
return true;
}
return super.onOptionsItemSelected(item);
}

No, I think that's not possible, maybe is a problem of your device, test it on an Android Emulator or another device. Can you please share your code to try to help you?

How to change the value of textView while resuming the fragments?

I have an activity and in that i have a textView,Framelayout(having fragments) and a button. while clicking on the button , i am changing the fragments in framelayout and text in textView (according to fragments). On pressing the back button of my phone i am somehow able to get previous fragment with onBackpressed function but not able to get the previous value on the textView. how to do it.
public class Quetionare extends AppCompatActivity {
Toolbar toolbar;
TextView tv;
Fragment fr;
Button next;
intro into;
SelectCar selectCar;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_quetionare);
initToolbar();
next=(Button)findViewById(R.id.button2);
tv = (TextView)findViewById(R.id.textView5);
fr = new intro();
FragmentManager fm = getFragmentManager();
FragmentTransaction fragmentTransaction = fm.beginTransaction();
fragmentTransaction.replace(R.id.container, fr);
fragmentTransaction.commit();
}
private void initToolbar()
{
toolbar = (Toolbar)findViewById(R.id.app_bar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowTitleEnabled(false);
final ActionBar actionBar = getSupportActionBar();
if (actionBar != null)
{
actionBar.setDisplayHomeAsUpEnabled(true);
}
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
getWindow().setStatusBarColor(Color.TRANSPARENT);
}
public void selectFrag(View view)
{
if(view==findViewById(R.id.button2))
{
fr = new SelectCar();
next.setVisibility(View.GONE);
tv.setText("Select Your car model and Plan");
}
else
{
fr = new Checkbox();
tv.setText("Make Your Plan");
}
FragmentManager fm = getFragmentManager();
FragmentTransaction fragmentTransaction = fm.beginTransaction();
fragmentTransaction.replace(R.id.container, fr);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}
#Override
public void onBackPressed()
{
if(getFragmentManager().getBackStackEntryCount() > 0) {
getFragmentManager().popBackStack();
if (fr == into)
{
next.setVisibility(View.VISIBLE);
}
else
{
next.setVisibility(View.GONE);
}
}
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.menu_quetionare, 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)
{
return true;
}
return super.onOptionsItemSelected(item);
}
}

You will have to save the value in the TextView when transitioning to your second fragment to a field, and then call setText using that value when you are navigating back.

we need to use findfragmentbyid method. By using this i have achieved desired functionality. thanks

Other Fragments are not showing

I have been searching for showing fragments but the problem still exists and I can't get it to work.
my problem is when ever I add repeat_entry to menu for showing another fragment, that fragment is not showing but when I click on action_settings the fragment for that one is showing.
#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();
FragmentManager fm = getFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.setCustomAnimations(android.R.animator.fade_in,android.R.animator.fade_out);
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
selectTabToShow(String.valueOf(R.id.action_search));
CategorySettings fragemnt = (CategorySettings) getFragmentManager().findFragmentById(R.id.categorySettings);
fragemnt.refresCategoryList();
Fragment fragment = new CategorySettings();
ft.add(R.id.category_cont,fragment,"asdf");
ft.commit();
return true;
}else if(id == R.id.repeat_entry){
Toast.makeText(MainActivity.this,"ssdf sdf",Toast.LENGTH_SHORT).show();
Fragment fragment = new RepeatEntry();
ft.add(R.id.category_cont,fragment,"repeat tag");
ft.commit();
Toast.makeText(MainActivity.this,"ssdf sdf",Toast.LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
As of now this is my RepeatEntry fragments
public class RepeatEntry extends Fragment{
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState){
View v = inflater.inflate(R.layout.repeat_entry,container,false);
return v;
}
}
Please help me guys I'm new to this.

Try to replace
ft.replace(R.id.category_cont,fragment,"repeat tag");

Replace fragment by menu

I'd like to replace a fragment, when a menu button is clicked. The toast is displayed, but it seems like I have a problem with the FragmentTransaction, since it tells me it
Description Resource Path Location Type
Cannot instantiate the type FragmentTransaction ActivityAppLaunch.java /juraQuiz/src/com/pthuermer/juraquiz line 71 Java Problem
this is what I tried:
#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();
if (id == R.id.actionbar_menu_info) {
Toast.makeText(getApplicationContext(), "Info", Toast.LENGTH_LONG).show();
FragmentTransaction ft = new FragmentTransaction();
Fragment fragment = new FragmentInfo();
ft.replace(R.id.container, fragment);
}
if (id == R.id.actionbar_menu_settings) {
Toast.makeText(getApplicationContext(), "Settigns", Toast.LENGTH_LONG).show();
}
return super.onOptionsItemSelected(item);
}

try FragmentManager
FragmentManager fragmentManager = getFragmentManager();
Fragment fragment = new FragmentInfo();
fragmentManager.beginTransaction().replace(R.id.container, fragment).commit();