How do i make a validation about the missing flash camera on android?

Question

Im making a flash aplication for a school proyect but my phone doesn't have an flashlight so.. i have a idea to make the validation if my phone dont have a flashlight so light up the screen.

can someone help me ? :D

Answer 1

I think this post may halp you to implement your idea:

If you are planing to use it inside any function like onUpdate or onEnabled etc of Appwidgetprovider, then all those functions have context as a input parameter. You can use that context for using PackageManager as you are doing here.

Also in your question you mention flashlight. So just check if you need FEATURE_CAMERA_FLASH or FEATURE_CAMERA.

Context context = this;
PackageManager packageManager = context.getPackageManager();

// if device support flash?
if (packageManager.hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH))
{
    //yes
    Log.i("camera", "This device has flash supported!");
 }else{
    //no
    Log.i("camera", "This device has no flash support!");
 }

FROM: Check if a device has flashlight

Check also:

• how to check if device has flash light led android
• Android: how to check the flash light is available on device?
• [VUFORIA FORUM] check if flash light is present in device

Hope it help