java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.Vie
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference 形成這個崩潰的緣由 基本上都是 頁面尚未注入layout ，就操做裏面的控件 。好
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