Calling a Fragment method from a parent Activity

If you are using “import android.app.Fragment;” Then use either:

1)

ExampleFragment fragment = (ExampleFragment) getFragmentManager().findFragmentById(R.id.example_fragment); 
fragment.specific_function_name(); 

Where R.id.example_fragment is most likely the FrameLayout id inside your xml layout. OR

2)

ExampleFragment fragment = (ExampleFragment) getFragmentManager().findFragmentByTag(“FragTagName”); 
fragment.specific_function_name(); 

Where FragTagName is the name u specified when u did:

TabHost mTabHost.newTabSpec(“FragTagName”)

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If you are using “import android.support.v4.app.Fragment;” Then use either:

1)

ExampleFragment fragment = (ExampleFragment) getSupportFragmentManager().findFragmentById(R.id.example_fragment); 
fragment.specific_function_name(); 

OR

2)

ExampleFragment fragment = (ExampleFragment) getSupportFragmentManager().findFragmentByTag(“FragTagName”); 
fragment.specific_function_name(); 

If you're using a support library, you'll want to do something like this:

FragmentManager manager = getSupportFragmentManager();
Fragment fragment = manager.findFragmentById(R.id.my_fragment);
fragment.myMethod();

1. If you're not using a support library Fragment, then do the following:

((FragmentName) getFragmentManager().findFragmentById(R.id.fragment_id)).methodName();

2. If you're using a support library Fragment, then do the following:

((FragmentName) getSupportFragmentManager().findFragmentById(R.id.fragment_id)).methodName();

not get the question exactly as it is too simple :

ExampleFragment fragment = (ExampleFragment) getFragmentManager().findFragmentById(R.id.example_fragment);
fragment.<specific_function_name>();