java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.Vie

時間 2020-01-21

標籤 java.lang.nullpointerexception java lang nullpointerexception attempt invoke virtual method android.view.view android view android.view.vie vie 欄目 Java 简体版

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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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