Finish () method will destroy the current activity. You can use this method in cases when you dont want this activity to load again and again ... ... <看更多>

Caused by java.lang.NullPointerException Attempt to invoke virtual method 'void android.app.Activity.finish()' on a null object reference ... ... <看更多>

Activity 的生命周期图片源自官方文档2.finish方法在onCreate()中调用finish()，会走onDestroy() ... 二、便于系统处理维护生命周期。 Share. Android. ... <看更多>