Question

I am developing flashlight app. I want to set time like 2mins, 3mins and unlimited for the flashlight to be on. How can I do that?
First of all I am checking whether flashlight is available or not. If it is, I want to set the brightness to maximum.

My code contains the following.

if (flashcheck) {
            camera = Camera.open();
            parameters = camera.getParameters();
            parameters.setFlashMode(Parameters.FLASH_MODE_TORCH);
            camera.setParameters(parameters);
        } else {
            WindowManager.LayoutParams localLayoutParams = getWindow()
                    .getAttributes();
            localLayoutParams.screenBrightness = 1F;
            getWindow().setAttributes(localLayoutParams);
        }

Answer 1

You can use the Handler for this, Check the below example:-

Handler handler=new Handler();handler.postDelayed(new Runnable() {

@Override
public void run() {
// TODO Auto-generated method stub
// write the code here that will be executed after 2000 milliseconds.               
}

}, 2000);

Whatever Runnable object you will pass as handler’s document, it will execute after 2000 milliseconds (means 2 seconds).