Question

How do i call on a seperate activity within a method:

For example:

private void startApp() {
    Patient_Button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            // I want this Button to go to an Detailed_ModeActivity
            // This is how i Am doing it right now, but it comes out with an
            // error
            Intent b = new Intent(this, Detailed_ModeActivity.class);
            startActivity(b);
        }
    });

}

Any Help would be appreciated.
The Button was declared in the onCreate method

Answer 1

The this refers to an View.OnClickListener object which doesn’t have startActivity() method and cannot be passed to an Intent. You need to call startActivity() on a Context (e.g. an Activity). Let’s say your code is in the MainActivity class. Like this:

Intent b = new Intent(MainActivity.this, Detailed_ModeActivity.class);
MainActivity.this.startActivity(b);