Android 9 Development Cookbook - Third Edition

How to do it...

There are only a few changes needed to get the results:

1. First of all, open MainActivity.java and add the following constant to the class:

public static final String REQUEST_RESULT="REQUEST_RESULT"; 

2. Next, change the way the intent is called by modifying the onClickSwitchActivity() method to expect a result:

public void onClickSwitchActivity(View view) {    EditText editText = (EditText)findViewById(R.id.editTextData);    String text = editText.getText().toString();    Intent intent = new Intent(this, SecondActivity.class);    intent.putExtra(Intent.EXTRA_TEXT,text);    startActivityForResult(intent,1);}

3. Then, add this new method to receive the result:

@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent ...