How to automatically Click a Button in Android after a 5 second delay

Question

I have a small Android application that automatically clicks the button after 5 seconds. I have used performClick(); but this does not work. When the timer gets

Answer 1

Use the runOnUiThread() method. This method run your method of UI thread

Answer 2

You should post your logcat that includes the error message but one issue might be that you are accessing a UI element off the UI thread which isn't a good idea.

To do what you want you really don't need another thread. You can use a Handler and a delayed Runnable instead like below.

new Handler().postDelayed(new Runnable() {
    @Override
    public void run() {
        button1.performClick();
    }
}, 5000);

This will schedule the Runnable to be executed on the UI thread after 5 seconds. If that still crashes post the stack trace from logcat.

Answer 3

protected void onCreate(Bundle savedInstanceState) {
try {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.local);
    getActionBar().setIcon(R.drawable.menu_drop);

    //buttonClick();

    Thread timer = new Thread(){
        public void run(){ 
            try{
                sleep(5000);
            } catch (InterruptedException e){
                e.printStackTrace();
            }finally{
                //button1.performClick();
                getLocationOnClick();
            }
        }
    };
    timer.start();
} catch (NotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
}

Change you button click method to like this -

public void getLocationOnClick(View v) {
     Intent i = new Intent(TestButton2.this, LocationView.class);
     startActivity(i);
    } 

In the xml for your Button add an onClick attribute -

 <Button
        android:id="@+id/btnid"
        android:onClick="getLocationOnClick"
        .... >