调用意图时发生相机错误。 Android的

Question

我不确定为什么会出错。

相机错误无法连接到相机。

这是我的意图代码（是的，我在清单文件中有权限）

 final File root = new File(Environment.getExternalStorageDirectory() + File.separator + "MyDir" + File.separator);
                    root.mkdirs();
                    final String fname = getUniqueImageFilename();
                    final File sdImageMainDirectory = new File(root, fname);
                    outputFileUri = Uri.fromFile(sdImageMainDirectory);
                    // Camera.
                    final List<Intent> cameraIntents = new ArrayList<Intent>();
                    final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
                    final PackageManager packageManager = getActivity().getPackageManager();
                    final List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0);
                    for (ResolveInfo res : listCam) {
                        final String packageName = res.activityInfo.packageName;
                        final Intent intent = new Intent(captureIntent);
                        intent.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
                        intent.setPackage(packageName);
                        intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
                        cameraIntents.add(intent);
                    }

                    final Intent chooserCameraIntent = Intent.createChooser(captureIntent, "Use Camera");

                    startActivityForResult(chooserCameraIntent, YOUR_SELECT_PICTURE_REQUEST_CODE);

这是logcat错误：

    03-12 00:34:49.038      183-838/? E/mm-camera-intf﹕ mm_camera_open: dev name = /dev/video1, cam_idx = 1
    03-12 00:34:54.038      183-838/? E/mm-camera-intf﹕ mm_camera_open:  opened, break out while loop
    03-12 00:34:54.038      183-838/? E/mm-camera-intf﹕ mm_camera_open: cannot open control fd of '/dev/video1' (Connection timed out)
    03-12 00:34:54.038      183-838/? E/mm-camera-intf﹕ camera_open: mm_camera_open err = -1
    03-12 00:34:54.038      183-838/? E/QCamera3HWI﹕ camera_open failed.
    03-12 00:34:54.038      183-838/? E/Camera3-Device﹕ Camera 0: initialize: Could not open camera: Unknown error -2147483648 (-2147483648)
    03-12 00:34:54.038      183-838/? E/Camera2ClientBase﹕ initialize: Camera 0: unable to initialize device: Unknown error -2147483648 (-2147483648)
    03-12 00:34:54.048  24562-24562/? E/CameraHolder﹕ fail to connect Camera:-1, aborting.
    03-12 00:34:54.048  24562-24562/? E/CAM_PhotoModule﹕ Failed to open camera:0
03-12 00:36:49.658      768-846/? E/InputDispatcher﹕ channel '434c3678 com.example.app/com.example.app.Home (server)' ~ Channel is unrecoverably broken and will be disposed!
03-12 00:36:50.048    183-26193/? E/ACDB-LOADER﹕ Error: ACDB AudProc vol returned = -19
03-12 00:36:50.378  24562-24562/? E/WindowManager﹕ android.view.WindowLeaked: Activity com.android.camera.CameraActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{42a40b28 V.E..... R....... 0,0-1026,584} that was originally added here
            at android.view.ViewRootImpl.<init>(ViewRootImpl.java:348)
            at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:248)
            at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
            at android.app.Dialog.show(Dialog.java:286)
            at android.app.AlertDialog$Builder.show(AlertDialog.java:951)
            at com.android.camera.util.CameraUtil.showErrorAndFinish(CameraUtil.java:357)
            at com.android.camera.CameraActivity$2.onDeviceOpenFailure(CameraActivity.java:247)
            at com.android.camera.AndroidCameraManagerImpl$CameraOpenErrorCallbackForward$2.run(AndroidCameraManagerImpl.java:845)
            at android.os.Handler.handleCallback(Handler.java:733)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)

Answer 1

如果相机应用程序崩溃，它可以锁定相机硬件，从而阻止其在重新启动设备之前再次使用。 因此，如果遇到“无法打开相机”和类似的消息，请尝试重新启动设备以查看问题是否消除。