WindowManager: android.view.WindowLeaked : Activity has leaked window DecorView@ac12e84[] that was originally added here

[Logcat]

WindowManager: android.view.WindowLeaked: Activity has leaked window DecorView@ac12e84[] that was originally added here

[원인 / Reason]

- Activity가 finish() 하기 전에 Dialog를 Dismiss 해주지 않아서 발생.

[해결방법 / Solution]

- finish(); 전에 (Dialog).dismiss();를 해주자.

(Example)

progressDialog.dismiss();  finish();