我已经开发了一个应用程序,其中集成了YouTube API,它可以正常运行没有崩溃,但是在Fabric上检查到了一些崩溃,错误提示是ipf.onFilterTouchEventForSecurity
。以下是完整的崩溃日志:
java.lang.NullPointerException:
at ipf.onFilterTouchEventForSecurity(ipf.java:115)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2351)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2844)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2461)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2844)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2461)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2844)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2461)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2876)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2461)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2844)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2519)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2844)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2519)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2844)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2519)
at com.android.internal.policy.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2840)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1853)
at android.app.Activity.dispatchTouchEvent(Activity.java:3061)
at com.android.internal.policy.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2801)
at android.view.View.dispatchPointerEvent(View.java:10246)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:5447)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:5283)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4721)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4774)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4740)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4882)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4748)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4939)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4721)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4774)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4740)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4748)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4721)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:7429)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:7298)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:7259)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:7539)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
at android.os.MessageQueue.nativePollOnce(MessageQueue.java:0)
at android.os.MessageQueue.next(MessageQueue.java:323)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:7325)
at java.lang.reflect.Method.invoke(Method.java:0)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
我知道这个问题不是因为代码引起的,但我需要防止崩溃。
以下是我遇到问题的设备列表:
- 三星Galaxy J7(j7elte),1536MB RAM,Android 6.0
- 小米红米Note 3(kenzo),2048MB RAM,Android 6.0
- 联想TB3-710F(TB3-710F),1024MB RAM,Android 5.0
- 小米红米3S(land),2048MB RAM,Android 6.0
- 乐视乐2(le_s2_ww),3072MB RAM,Android 6.0
- LGE LG Stylus2 4G(ph2),2048MB RAM,Android 6.0
- Infocus M2_3G(G10),10124MB RAM,Android 4.4
NullPointerException
异常被抛出是因为你的代码使用了一个未被实例化的对象。要么你调用某个方法去获取这个对象,但是返回的对象是null(因为你的代码没有传递正确/有效的参数),要么你的代码声明了一个对象,在它还没被构造完成之前就在你的代码中使用它了。这基本上就是 NPE 是什么。 - hfontanez