解决 Attempt to read from field ‘android.os.MessageQueue android.os.Looper.mQueue‘ on a null object ..

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于 2024-11-07 21:28:21 发布 · 641 阅读

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文章标签：

#android #java #kotlin

异常信息

java.lang.NullPointerException: Attempt to read from field 'android.os.MessageQueue android.os.Looper.mQueue' on a null object reference
at android.os.Handler.<init>(Handler.java:257)
at android.os.Handler.<init>(Handler.java:162)
at com.zlgspace.andcodec.camera.CameraWrapper.<init>(CameraWrapper.java:60)
at com.zlgspace.andcodec.MainActivity$1.onClick(MainActivity.java:36)
at android.view.View.performClick(View.java:7464)
at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1213)
at android.view.View.performClickInternal(View.java:7441)
at android.view.View.access$3700(View.java:835)
at android.view.View$PerformClick.run(View.java:28825)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7870)
at