android studio 3.1 error: style attribute ‘android:attr/keyboardNavigationCluster’ not found. 27 3 月, 2018 升級到 android studio 3.1 之…
[Android] background application can know what the application currently running in the foreground 22 2 月, 2018 這是個一個舊時代的產物，超過 Android 4…