When I press second time on the button , the app stops working

Question

I am developing an app that consist of login-register app . In my login activity i have 2 buttons: LOGIN and REGISTER .The Register button is used to redirect you from login activity to register activity . The app works fine till I press once again . The app stops working.

final Button button = (Button) findViewById (R.id.button);
button.setOnClickListener (new View.OnClickListener(){
        @Override
        public void onClick (View v){
            Intent launchactivity = new Intent (Login.this,Register.class);
            startActivity (launchactivity);
        });

Answer 1

try to change from Login.This to getApplicationContext()

public void onClick (View v){
   Intent launchactivity = new Intent (getApplicationContext(),Register.class);
   startActivity (launchactivity);
});

Answer 2

删除您 login.this 并添加getApplicationContext()