Question

我正在使用Google的EasyPermissions库来处理Android 6上的权限。我第一次点击按钮捕获图片时，它会要求我为CAMERA和{{1}授予权限}。

在我接受了两个权限应用程序崩溃并显示错误消息后，您可以看到：

WRITE_EXTERNAL_STORAGE

和E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.debug, PID: 22768 java.lang.RuntimeException: Failure delivering result ResultInfo{who=@android:requestPermissions:, request=123, result=-1, data=Intent { act=android.content.pm.action.REQUEST_PERMISSIONS (has extras) }} to activity {com.example.debug/com.example.camera.CameraActivity}: java.lang.RuntimeException: Cannot execute non-void method openCamera at android.app.ActivityThread.deliverResults(ActivityThread.java:3699) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742) at android.app.ActivityThread.-wrap16(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: java.lang.RuntimeException: Cannot execute non-void method openCamera at pub.devrel.easypermissions.EasyPermissions.runAnnotatedMethods(EasyPermissions.java:229) at pub.devrel.easypermissions.EasyPermissions.onRequestPermissionsResult(EasyPermissions.java:186) at com.example.camera.CameraActivity.onRequestPermissionsResult(CameraActivity.java:243) at android.app.Activity.dispatchRequestPermissionsResult(Activity.java:6553) at android.app.Activity.dispatchActivityResult(Activity.java:6432) at android.app.ActivityThread.deliverResults(ActivityThread.java:3695) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742) at android.app.ActivityThread.-wrap16(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 方法：

openCamera()

Answer 1

您获得该异常是因为EasyPermission无法调用您的方法openCamera，因为它具有参数option。用AfterPermissionGranted注释的方法必须是无效的，因此EasyPermission可以调用它们。

此条件已在EasyPermission的来源中明确验证：

// Method must be void so that we can invoke it
if (method.getParameterTypes().length > 0) {
    throw new RuntimeException("Cannot execute non-void method " + method.getName());
}

要解决此问题，您必须从方法openCamera中删除任何参数。

传递结果失败 - 无法执行非空方法openCamera

1 个答案: