When trying turn off camera led, app crash

Question

i have a code

 @TargetApi(23)
 private void setTorchMode( CameraManager cameraManager, String id, boolean switchOn) throws CameraAccessException {


      try {
            final Method setTorchMode = cameraManager.getClass().getMethod("setTorchMode", String.class, boolean.class);
            cameraManager.setTorchMode(cameraManager.getCameraIdList()[0],switchOn);
            callbackContext.success();
      } catch (IllegalArgumentException m){

      } catch (Throwable t) {
            callbackContext.error(t.getMessage());
      }

when i try turn off camera led, i have crash

FATAL EXCEPTION: main
Process: uk.co.sparkenergy.androidapp2, PID: 31200    java.lang.IllegalArgumentException: Receiver not registered: android.hardware.camera2.CameraManager$1@6e1ab65
                                                                               at android.app.LoadedApk.forgetReceiverDispatcher(LoadedApk.java:793)
                                                                               at android.app.ContextImpl.unregisterReceiver(ContextImpl.java:1200)
                                                                               at android.hardware.camera2.CameraManager$3.run(CameraManager.java:1266)
                                                                               at android.os.Handler.handleCallback(Handler.java:815)
                                                                               at android.os.Handler.dispatchMessage(Handler.java:104)
                                                                               at android.os.Looper.loop(Looper.java:207)
                                                                               at android.app.ActivityThread.main(ActivityThread.java:5763)
                                                                               at java.lang.reflect.Method.invoke(Native Method)
                                                                               at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
                                                                               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)

only 1 device Sony e5633, help please)

I have the same issue on ZTE BLADE V7 and Sony Xperia M5 (Android 6.0). The issue comes from Crashlytics. I cannot reproduce it at the moment. My only idea for a workaround so far is to use old camera API for these phone models or even for all Android versions pre-7.0. — Slav, Feb 08 '18 at 08:52

score 1 · Accepted Answer · answered Feb 08 '18 at 15:29

1

On some devices, if a flashlight is disabled and you try to disable it again, an app is crashed. So the solution is only to switch the state of the flashlight.

answered Feb 08 '18 at 15:29

Ruslan Leshchenko

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how could you switch the state if the flashlight? would you mind editing your answer and add the code? Thanks – blueware Sep 26 '18 at 12:10
It was 2 years ago, unfortunately, I don't have the code and forgot how I made it. – Ruslan Leshchenko Sep 26 '18 at 13:28
Alright you mean by (flashlight is disabled = switched off)? – blueware Sep 30 '18 at 10:41
@blueware looks like yes) – Ruslan Leshchenko Oct 02 '18 at 06:40
How can I check if flash is disabled? Any code you can help me with? – blueware Oct 02 '18 at 06:44
@blueware As I said before it was some time ago and I don't have any code which can help you. – Ruslan Leshchenko Oct 02 '18 at 09:03

score 0 · Answer 2 · answered Dec 28 '16 at 06:46

public void turnOnFlashLight() {

    try {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            mCameraManager.setTorchMode(mCameraId, true);

            mTorchOnOffButton.setImageResource(R.drawable.on);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}


public void turnOffFlashLight() {

    try {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            mCameraManager.setTorchMode(mCameraId, false);

            mTorchOnOffButton.setImageResource(R.drawable.off);

        }

    } catch (Exception e) {
        e.printStackTrace();
    }
}

Add some explanation with answer for how this answer help OP in fixing current issue — ρяσѕρєя K, Dec 28 '16 at 07:23

When trying turn off camera led, app crash

2 Answers2

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