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0

I've seen this mentioned in a couple of places but cant quite work out how to implement it as there are no example online, I'm wondering whether I've misinterpreted its meaning.

the android developer link for addOnBackPressedCallback

I was wondering whether this means I can add a callback inside my fragment to pick up the onBackPressed() before it hits the activity.

In my fragment I've implemented

implements OnBackPressedCallBack

then implemented the method

@Override
public boolean handleOnBackPressed() 
 Log.d(TAG, "handleOnBackPressed: hello");
 return true;

But its not picking it up and going straight to main activity onBackPressed().

I read on further and saw that My fragment needed to extend from FragmentActivity

public class MainExampleFragment extends FragmentActivity implements View.OnClickListener, OnBackPressedCallback {

and instead of

appCompatActivity.getSuppportFragmentManager

to call

FragmentActivity.getSupportFragmentManager 

instead, but this throws and error in the Fragment.newInstance method when trying to set the bundle.

Has anyone info on doing this please thanks

android

share|improve this question

edited Mar 9 at 6:08

Vrushi Patel

372321

asked Mar 9 at 6:02

DaveDave

589

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Using event bus on back press
  
  – Kishan Viramgama
  Mar 9 at 6:12
  

  
  
  
  

add a comment | 

0

I've seen this mentioned in a couple of places but cant quite work out how to implement it as there are no example online, I'm wondering whether I've misinterpreted its meaning.

the android developer link for addOnBackPressedCallback

I was wondering whether this means I can add a callback inside my fragment to pick up the onBackPressed() before it hits the activity.

In my fragment I've implemented

implements OnBackPressedCallBack

then implemented the method

@Override
public boolean handleOnBackPressed() 
 Log.d(TAG, "handleOnBackPressed: hello");
 return true;

But its not picking it up and going straight to main activity onBackPressed().

I read on further and saw that My fragment needed to extend from FragmentActivity

public class MainExampleFragment extends FragmentActivity implements View.OnClickListener, OnBackPressedCallback {

and instead of

appCompatActivity.getSuppportFragmentManager

to call

FragmentActivity.getSupportFragmentManager 

instead, but this throws and error in the Fragment.newInstance method when trying to set the bundle.

Has anyone info on doing this please thanks

android

share|improve this question

edited Mar 9 at 6:08

Vrushi Patel

372321

asked Mar 9 at 6:02

DaveDave

589

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Using event bus on back press
  
  – Kishan Viramgama
  Mar 9 at 6:12
  

  
  
  
  

add a comment | 

I've seen this mentioned in a couple of places but cant quite work out how to implement it as there are no example online, I'm wondering whether I've misinterpreted its meaning.

the android developer link for addOnBackPressedCallback

I was wondering whether this means I can add a callback inside my fragment to pick up the onBackPressed() before it hits the activity.

In my fragment I've implemented

implements OnBackPressedCallBack

then implemented the method

@Override
public boolean handleOnBackPressed() 
 Log.d(TAG, "handleOnBackPressed: hello");
 return true;

But its not picking it up and going straight to main activity onBackPressed().

I read on further and saw that My fragment needed to extend from FragmentActivity

public class MainExampleFragment extends FragmentActivity implements View.OnClickListener, OnBackPressedCallback {

and instead of

appCompatActivity.getSuppportFragmentManager

to call

FragmentActivity.getSupportFragmentManager 

instead, but this throws and error in the Fragment.newInstance method when trying to set the bundle.

Has anyone info on doing this please thanks

android

share|improve this question

edited Mar 9 at 6:08

Vrushi Patel

372321

asked Mar 9 at 6:02

DaveDave

589

implements OnBackPressedCallBack

@Override
public boolean handleOnBackPressed() 
 Log.d(TAG, "handleOnBackPressed: hello");
 return true;

public class MainExampleFragment extends FragmentActivity implements View.OnClickListener, OnBackPressedCallback {

appCompatActivity.getSuppportFragmentManager

FragmentActivity.getSupportFragmentManager 

android

android

share|improve this question

edited Mar 9 at 6:08

Vrushi Patel

372321

asked Mar 9 at 6:02

DaveDave

589

share|improve this question

edited Mar 9 at 6:08

Vrushi Patel

372321

asked Mar 9 at 6:02

DaveDave

589

edited Mar 9 at 6:08

Vrushi Patel

372321

edited Mar 9 at 6:08

Vrushi Patel

372321

asked Mar 9 at 6:02

DaveDave

589

asked Mar 9 at 6:02

DaveDave

589