Question

I have wrote another application, now it is store only my private data. Whenever user click on the application icon, as you know, application will start. I want to put password before the my application is starting up. If user will write password incorrectly, at most 5 times, application will not start.

My question is ; how can I put password and do not let my application to start if incorrect pass given ?

Answer 1

Your main activity should provide a prompt to enter the password. The password box should be an EditText with the password property set (to make the characters hidden when typing in it). You should also have a submit Button which will check the password for the one you have stored. You should have a counter which will increment to 5 as each wrongly typed password is entered. When it reaches 5, you can use finish() to kill the activity (finish() is called on the Activity you’re using). If they type the correct password, you can launch an Intent to start another Activity which will be your actual application.