Camera cam = Camera.open();
Parameters p = cam.getParameters();
p.setFlashMode(Parameters.FLASH_MODE_TORCH);
cam.setParameters(p);
cam.startPreview();
The above dose not work on Lollipop, Because Camera is deprecated in Lollipop. I cant able to find any other way to turn on flash programmatically in Lollipop. How can I achieve this. Thanks in advance.
Camera class is now deprecated.
For LOLLIPOP above you need to use camera2 Api
so nickkadrov's solution doesent work for 6.0 & above device,best way to on/off flash light is try code below
public static void toggleFlashLight(){
toggle=!toggle;
try {
CameraManager cameraManager = (CameraManager) getApplicationContext().getSystemService(Context.CAMERA_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
for (String id : cameraManager.getCameraIdList()) {
// Turn on the flash if camera has one
if (cameraManager.getCameraCharacteristics(id).get(CameraCharacteristics.FLASH_INFO_AVAILABLE)) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
cameraManager.setTorchMode(id, true);
}
}
}
}
} catch (Exception e2) {
Toast.makeText(getApplicationContext(), "Torch Failed: " + e2.getMessage(), Toast.LENGTH_SHORT).show();
}
}
where toggle is class level static Boolean variable whose default value is false
static boolean toggle=false;
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