Question

I have a button on my camera preview screen to toggle the camera’s flash. The camera starts on auto-flash which works then when the button is pressed the flash turns off but when i try to turn the flash back on it doesn’t turn on and i don’t know why?

Log.d("flash",mCamera.getParameters().getFlashMode());

Displays on off and auto as i press it. But it doesn’t turn back on. Here is my full code

public void flashPressed(View v)
{
    ImageButton flashButton = (ImageButton)findViewById(R.id.flash);
    Camera.Parameters myP = mCamera.getParameters();
    if(flashOn == 0)
    {
        flashButton.setImageResource(R.drawable.device_access_flash_off);

        myP.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);
        flashOn = 1;

    }
    else if(flashOn == 1)
    {
        myP.setFlashMode(Camera.Parameters.FLASH_MODE_ON);
        flashButton.setImageResource(R.drawable.device_access_flash_on);
        flashOn=2;
    }else{
        myP.setFlashMode(Camera.Parameters.FLASH_MODE_AUTO);
        flashButton.setImageResource(R.drawable.device_access_flash_automatic);
        flashOn =0;
    }

    mCamera.setParameters(myP);
    Log.d("flash",mCamera.getParameters().getFlashMode());
}

Answer 1

To avoid this problem I just created a new camera each time the flash option changes