Java 如何修复Android上服务中的Intent.getAction（）错误

在我的应用程序中，我想在录制设备屏幕上使用一个服务，这个名称是

RecorderService

我写了下面的代码，但在某些设备上运行服务时显示ForceClose错误，应用程序已停止

我的服务代码：

public class RecorderService extends Service {
    private static final SparseIntArray ORIENTATIONS = new SparseIntArray();
    private int WIDTH, HEIGHT, FPS, DENSITY_DPI;
    private int BITRATE;
    private boolean isBound = false;
    private String audioRecSource;
    private String SAVEPATH, videoName;
    private AudioManager mAudioManager;
    private FloatingControlService floatingControlService;

    static {
        ORIENTATIONS.append(Surface.ROTATION_0, 0);
        ORIENTATIONS.append(Surface.ROTATION_90, 90);
        ORIENTATIONS.append(Surface.ROTATION_180, 180);
        ORIENTATIONS.append(Surface.ROTATION_270, 270);
    }

    private int screenOrientation;
    private String saveLocation;

    private boolean isRecording;
    private NotificationManager mNotificationManager;
    Handler mHandler = new Handler(Looper.getMainLooper()) {
        @Override
        public void handleMessage(Message message) {
            Toast.makeText(RecorderService.this, "Service stoped", Toast.LENGTH_SHORT).show();
        }
    };

    private Intent data;
    private int result;

    private WindowManager window;
    private MediaProjection mMediaProjection;
    private VirtualDisplay mVirtualDisplay;
    private MediaProjectionCallback mMediaProjectionCallback;
    private MediaRecorder mMediaRecorder;

    //Service connection to manage the connection state between this service and the bounded service
    private ServiceConnection serviceConnection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            //Get the service instance
            FloatingControlService.ServiceBinder binder = (FloatingControlService.ServiceBinder) service;
            floatingControlService = binder.getService();
            isBound = true;
        }

        @Override
        public void onServiceDisconnected(ComponentName name) {
            floatingControlService = null;
            isBound = false;
        }
    };

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
        videoName = GoodPrefs.getInstance().getString(ConstKeys.TEST_NAME, "Testady");
        //return super.onStartCommand(intent, flags, startId);
        //Find the action to perform from intent
        switch (Objects.requireNonNull(intent.getAction())) {
            case ConstKeys.SCREEN_RECORDING_START:
                if (!isRecording) {
                    screenOrientation = ((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getRotation();
                    data = intent.getParcelableExtra(ConstKeys.RECORDER_INTENT_DATA);
                    result = intent.getIntExtra(ConstKeys.RECORDER_INTENT_RESULT, Activity.RESULT_OK);

                    getValues();

                    startRecording();

                    openTestApp();

                } else {
                    Toast.makeText(this, "Service has running", Toast.LENGTH_SHORT).show();
                }
                break;
            case ConstKeys.SCREEN_RECORDING_PAUSE:
                break;
            case ConstKeys.SCREEN_RECORDING_RESUME:
                break;
            case ConstKeys.SCREEN_RECORDING_STOP:
                stopRecording();
                break;
        }

        return START_STICKY;
    }
}

logcat错误（从firebase获取此错误）：

显示此错误的错误：

开关（Objects.requirennoull（intent.getAction（））

我使用以下代码启动服务：

Intent recorderService = new Intent(this, RecorderService.class);
    recorderService.setAction(ConstKeys.SCREEN_RECORDING_START);
    recorderService.putExtra(ConstKeys.RECORDER_INTENT_DATA, data);
    recorderService.putExtra(ConstKeys.RECORDER_INTENT_RESULT, resultCode);
    startService(recorderService);
    finish();

---

如何修复它？

NullPointerException

奇怪的是，intent参数为null。的确无论如何如果（intent==null）{Toast（…sorry intent为null）；stopSelf（）；return；}，则可以执行检查

。所有这些都是为了确保你的应用程序不会崩溃。@blackapps，谢谢你发送代码，但是在哪里使用它呢？你能用我上面的代码给我发送代码吗？你不清楚是哪条语句导致了异常吗？如果不是的话，你应该告诉我。如果是，那么在执行该语句之前。在你使用intent参数之前。@blackapps，真的不知道：（你能帮我吗？
Intent recorderService = new Intent(this, RecorderService.class);
    recorderService.setAction(ConstKeys.SCREEN_RECORDING_START);
    recorderService.putExtra(ConstKeys.RECORDER_INTENT_DATA, data);
    recorderService.putExtra(ConstKeys.RECORDER_INTENT_RESULT, resultCode);
    startService(recorderService);
    finish();