致命例外：ControllerMessenger

Question

谁能帮我解决这些错误。我将我的应用程序添加到了 firebase 并进行了测试运行。我得到了这些错误。我是 android 应用程序开发的新手。我不知道应该从哪里开始修复这些错误。

 Fatal exception
android.os.FileUriExposedException: file:///storage/emulated/0/QR%20and%20Barcode/text.png exposed beyond app through ClipData.Item.getUri()
FATAL EXCEPTION: ControllerMessenger
Process: one.teqtoapps.barqr, PID: 9659
android.os.FileUriExposedException: file:///storage/emulated/0/QR%20and%20Barcode/text.png exposed beyond app through ClipData.Item.getUri()
	at android.os.StrictMode.onFileUriExposed(StrictMode.java:1958)
	at android.net.Uri.checkFileUriExposed(Uri.java:2348)
	at android.content.ClipData.prepareToLeaveProcess(ClipData.java:941)
	at android.content.Intent.prepareToLeaveProcess(Intent.java:9735)
	at android.content.Intent.prepareToLeaveProcess(Intent.java:9741)
	at android.content.Intent.prepareToLeaveProcess(Intent.java:9720)
	at android.app.Instrumentation.execStartActivity(Instrumentation.java:1609)
	at androidx.test.runner.MonitoringInstrumentation.execStartActivity(MonitoringInstrumentation.java:152)
	at android.app.Activity.startActivityForResult(Activity.java:4472)
	at android.support.v4.app.BaseFragmentActivityApi16.startActivityForResult(BaseFragmentActivityApi16.java:54)
	at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:68)
	at android.app.Activity.startActivityForResult(Activity.java:4430)
	at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:751)
	at android.app.Activity.startActivity(Activity.java:4791)
	at android.app.Activity.startActivity(Activity.java:4759)
	at one.teqtoapps.barqr.utility.AppUtils.share(AppUtils.java:83)
	at one.teqtoapps.barqr.fragment.GenerateFragment$6.onSaved(GenerateFragment.java:183)
	at one.teqtoapps.barqr.utility.SaveImage.onPostExecute(SaveImage.java:41)
	at one.teqtoapps.barqr.utility.SaveImage.onPostExecute(SaveImage.java:16)
	at android.os.AsyncTask.finish(AsyncTask.java:695)
	at android.os.AsyncTask.-wrap1(Unknown Source:0)
	at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:712)
	at android.os.Handler.dispatchMessage(Handler.java:105)
	at androidx.test.espresso.base.Interrogator.a(Interrogator.java:19)
	at androidx.test.espresso.base.UiControllerImpl.a(UiControllerImpl.java:142)
	at androidx.test.espresso.base.UiControllerImpl.a(UiControllerImpl.java:96)
	at androidx.test.espresso.base.UiControllerImpl.a(UiControllerImpl.java:37)
	at androidx.test.espresso.action.MotionEvents.a(MotionEvents.java:74)
	at androidx.test.espresso.action.MotionEvents.a(MotionEvents.java:52)
	at androidx.test.espresso.action.Tap.c(Tap.java:9)
	at androidx.test.espresso.action.Tap.a(Tap.java:19)
	at androidx.test.espresso.action.Tap$1.b(Tap.java:2)
	at androidx.test.espresso.action.GeneralClickAction.perform(GeneralClickAction.java:22)
	at androidx.test.espresso.ViewInteraction$SingleExecutionViewAction.perform(ViewInteraction.java:9)
	at androidx.test.espresso.ViewInteraction.a(ViewInteraction.java:78)
	at androidx.test.espresso.ViewInteraction.a(ViewInteraction.java:94)
	at androidx.test.espresso.ViewInteraction$1.call(ViewInteraction.java:3)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at android.os.Handler.handleCallback(Handler.java:789)
	at android.os.Handler.dispatchMessage(Handler.java:98)
	at android.os.Looper.loop(Looper.java:164)
	at android.app.ActivityThread.main(ActivityThread.java:6541)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

Answer 1

在 Google Play 测试期间，我在某些设备上遇到了相同的崩溃 我认为这会对您有所帮助： https://issuetracker.google.com/issues/113164874

在我的例子中，它显示在日志中

截屏失败：takeScreenshot 返回 null

复制了 4 个字节

01-29 06:27:43.544: I/Robo(11035): --------- 崩溃开始

01-29 06:27:43.545：E/AndroidRuntime(11035)：致命异常：ControllerMessenger

01-29 06:27:43.545：E/AndroidRuntime(11035)：进程：PID：11035

01-29 06:27:43.545: E/AndroidRuntime(11035): java.lang.NullPointerException: 尝试在空对象引用上调用虚拟方法“void android.graphics.Bitmap.recycle()”

因为我的屏幕有安全标志来截屏，而测试框架尝试截屏时将返回 null 并在回收时抛出 NullPointerException。

如需更多帮助，您可以在这里回复我。