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  • PopupWindows 在2.3.3下报java.lang.NullPointerException

    03-05 01:20:56.040: E/AndroidRuntime(1396): java.lang.NullPointerException
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at android.widget.PopupWindow.setContentView(PopupWindow.java:384)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at android.widget.PopupWindow.<init>(PopupWindow.java:286)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at android.widget.PopupWindow.<init>(PopupWindow.java:266)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at android.widget.PopupWindow.<init>(PopupWindow.java:223)  
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at android.widget.AdapterView.performItemClick(AdapterView.java:284)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at android.widget.AbsListView$PerformClick.run(AbsListView.java:1812)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at android.os.Handler.handleCallback(Handler.java:587)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at android.os.Handler.dispatchMessage(Handler.java:92)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at android.os.Looper.loop(Looper.java:130)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at android.app.ActivityThread.main(ActivityThread.java:3683)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at java.lang.reflect.Method.invokeNative(Native Method)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at java.lang.reflect.Method.invoke(Method.java:507)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
    03-05 01:20:56.040: E/AndroidRuntime(1396): 	at dalvik.system.NativeStart.main(Native Method)
    

      以上是错误信息

    在重写PopupWindows的时候记得加上super(context);就行了

    4.0以上不会出现这个问题

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  • 原文地址:https://www.cnblogs.com/freexiaoyu/p/3581775.html
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