text片段(代码片段)

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// To set Default fragment to the activity

getSupportFragmentManager().beginTransaction()
                .add(R.id.container, new fragmentName(), "fragmenrTag")
                .commit();
                

//The Activity should implement the interfaces of all its fragments and its methods to get Data from the Fragment

//Adding Interface inside a fragment

private displayInterface mListener;

@Override
public void onAttach(Context context) 
    super.onAttach(context);
    mListener = (displayInterface) context;

    
public interface displayInterface 
        void displayInterface(data data); //Call this method wherever necessary, implementation of this method will be in the Activity

    
//Sending data to a fragment before calling it

Bundle bundle = new Bundle();
bundle.putSerializable("data", data);
display myObj = new display();
myObj.setArguments(bundle);
getSupportFragmentManager().beginTransaction()
        .replace(R.id.container, myObj, "display")
        .addToBackStack(null)
        .commit();
        
        
//Retrieving Data insinde the fragment

if (getArguments() != null) 
    user = (data) getArguments().getSerializable("data");


// Go back to previous Fragment

getActivity().getSupportFragmentManager().popBackStack();

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