Я тестирую свое приложение для Android на ChromeBook, и когда я нажимаю на развертывание окна, происходит сбой приложения, и трассировка стека содержит только вызов метода Android/НЕ содержит вызов метода моего собственного приложения.< /p>
То же самое поведение, когда приложение развернуто и я нажимаю кнопку восстановления размера («отменить развертывание»).
Я ищу на SO и в системе отслеживания ошибок Google, но не смог найти эту проблему.
Как мне с этим справиться?
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.my.package/com.my.package.MyActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setBackgroundResource(int)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3707)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3864)
at android.app.ActivityThread.handleRelaunchActivityInner(ActivityThread.java:5811)
at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:5703)
at android.app.servertransaction.ActivityRelaunchItem.execute(ActivityRelaunchItem.java:71)
at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2253)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7870)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setBackgroundResource(int)' on a null object reference
at com.android.internal.policy.DecorView.setLightDecorCaptionShade(DecorView.java:2308)
at com.android.internal.policy.DecorView.setDecorCaptionShade(DecorView.java:2293)
at com.android.internal.policy.DecorView.updateDecorCaptionShade(DecorView.java:2302)
at com.android.internal.policy.DecorView.updateColorViews(DecorView.java:1186)
at com.android.internal.policy.PhoneWindow.dispatchWindowAttributesChanged(PhoneWindow.java:3041)
at android.view.Window.setColorMode(Window.java:1266)
at android.app.Activity.attach(Activity.java:8014)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3657)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3864)
at android.app.ActivityThread.handleRelaunchActivityInner(ActivityThread.java:5811)
at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:5703)
at android.app.servertransaction.ActivityRelaunchItem.execute(ActivityRelaunchItem.java:71)
at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2253)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7870)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
Подробнее здесь: https://stackoverflow.com/questions/791 ... n-null-obj
