How to Reach Bottom Sheet from another activity?

Question

I tried to use a bottom sheet which use a layout of an activity, not dialog.

[Here is my bottom sheet][1]

But I can't access "Pay Now" button. I tried to use click listener in the same activity, but nothing happens. How can I listen this button and where?

Activity of Bottom Sheet

public class SheetActivity extends AppCompatActivity {

Button sheet_button;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sheet);

    sheet_button = (Button)findViewById(R.id.sheet_button);
    //

    sheet_button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Toast.makeText(getApplicationContext(), "Done!", Toast.LENGTH_SHORT).show();
            sheet_button.setText("deneme");
        }
    });
}}

Answer 1

This is generally pretty simple.

If your bottom sheet is a DialogFragment or BottomSheetDialogFrament attach a listener into the onAttach(Context context) method like so:

define the interface in the Fragment:

interface CheckoutButtonListener {
    void onClick(/*provide whatever arguments you need to back to parent*/);
}

usage:

// Define the member variable
private CheckoutButtonListener mCheckoutListener;

@Override
public void onAttach(Context context){
    super.onAttach(context);
    try{
        mCheckoutListener = (CheckoutButtonListener) context;
    }catch(ClassCastException){
      // Handle the error silently or rethrow so usage is expected
    }
}

Then when you attach the listener to the button:

mButton.setOnClickListener(new View.OnClickListener(){
    @Override
    public void onClick(View v){
        mCheckoutListener.onClick(); // call the interface method
    }
});

Finally, implement the interface in whatever Activity is showing the sheet:

class MyActivity extends AppCompatActivity implements CheckoutButtonListener {

     //.. other code

     // interface method
     @Override
     public void onClick(){
        // do whatever you need to do
     }
}

If you are not using a re-usable bottom sheet (ie as a DialogFragment) then you should include this code in each place you display it, however better to modularize.

Good Luck and Happy Coding!