How to delay onClick (Android)

Question

Sorry I'm new on android java. Please read the comment tag "//" on the code below, When i clicked my button, the send mail and uninstall is working in same time, how to delay it?

@Override
    public void onClick(View v) {
        // execute send mail first
        sendEmail();
        // delayed 30 second then execute this uninstall.
        Uri packageUri = Uri.parse("package:com.naufalazkia.zitongart"); 

            Intent uninstallIntent =
              new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageUri);
        startActivity(uninstallIntent);
    }

score 0 · Answer 1 · answered Feb 07 '16 at 12:45

You can do:

@Override
    public void onClick(View v) {
        // execute send mail first
        sendEmail();
        Thread.sleep(30000L);// delayed 30 second then execute this uninstall.
        Uri packageUri = Uri.parse("package:com.naufalazkia.zitongart"); 

            Intent uninstallIntent =
              new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageUri);
        startActivity(uninstallIntent);
    }

BUT it is not a good development implementation to sleep threads, instead you can refactor some modules and wait for some Callback or notifications.

The problem here is not so much the delay itself, but that the delay happens on the main UI thread > locking the main UI thread is not good practice as it'll appear to the user as if the app is hanging. — AgentKnopf, Sep 12 '17 at 18:55

score 0 · Answer 2 · answered Feb 07 '16 at 12:47

You can use a handler to delay a method for the required time. Here is how:

Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                //Your method to be executed after the delay.
            }
        }, 1000); //1000 is the time in milliseconds( 1 sec) to wait.

score 0 · Accepted Answer · answered Feb 07 '16 at 12:48

Use postDelayed():

@Override public void onClick(View v) {
        // execute send mail first
        sendEmail();
        v.postDelayed(new Runnable() {
            @Override
            public void run() {
                Uri packageUri = Uri.parse("package:com.naufalazkia.zitongart"); 

                Intent uninstallIntent =
                    new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageUri);
                    startActivity(uninstallIntent);
            }
         }, 30000L);
    }

thanks, love this method man :v – MUHAMMAD NAUFAL AZKIA Feb 07 '16 at 13:51 — MUHAMMAD NAUFAL AZKIA, Feb 07 '16 at 13:51

How to delay onClick (Android)

3 Answers3