Question

I have implemented onPause() and onResume() method in my application as below:

protected void onPause() {
        super.onPause();

        String receiver = phoneNoField.getText().toString();
        String message = messageBody.getText().toString();
        getIntent().putExtra(MESSAGE_RECEIVER, receiver);
        getIntent().putExtra(MESSAGE_BODY, message);

        Log.d(TAG, receiver + " " + message);       
    }


protected void onResume() {
        super.onResume();

        String receiver = getIntent().getStringExtra(MESSAGE_RECEIVER);
        String message = getIntent().getStringExtra(MESSAGE_BODY);
        if(receiver != null)
            phoneNoField.setText(receiver);
        if(message != null)
            messageBody.setText(message);

        Log.d(TAG, receiver + " " + message);       
    }

When onPause() method is called, i see the values have been set. But in my onResume() method getStringExtra() always returns null. Anything wrong with my approach?

Answer 1

getIntent() returns the Intent that has started the activity. When you go to another activity and then come back, what getIntent() returns is different from what you have had in the onPause method

One of your options is to put the values in the Intent that you use to start activity B and then when you start back activity A yet again to put the values in the Intent. The other option, which I’d prefer is to use SharedPreferences to do the job.