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Merge pull request #143 from unbiaseduser/flash_off_on_screen_off
Add option to turn off flash on screen off
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59 changes: 59 additions & 0 deletions
59
app/src/main/java/rocks/poopjournal/flashy/receivers/ScreenOffBroadcastReceiver.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| package rocks.poopjournal.flashy.receivers; | ||
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| import static java.util.Objects.requireNonNull; | ||
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| import android.content.BroadcastReceiver; | ||
| import android.content.Context; | ||
| import android.content.Intent; | ||
| import android.content.IntentFilter; | ||
| import android.os.Build; | ||
| import android.view.Display; | ||
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| import androidx.annotation.RequiresApi; | ||
| import androidx.core.hardware.display.DisplayManagerCompat; | ||
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| import rocks.poopjournal.flashy.utils.CameraHelper; | ||
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| public class ScreenOffBroadcastReceiver extends BroadcastReceiver { | ||
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| private boolean isRegistered = false; | ||
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| public void registerWith(Context context) { | ||
| if (isRegistered) { | ||
| return; | ||
| } | ||
| context.registerReceiver(this, new IntentFilter(Intent.ACTION_SCREEN_OFF)); | ||
| isRegistered = true; | ||
| } | ||
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| public void unregisterWith(Context context) { | ||
| if (!isRegistered) { | ||
| return; | ||
| } | ||
| context.unregisterReceiver(this); | ||
| isRegistered = false; | ||
| } | ||
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| @RequiresApi(api = Build.VERSION_CODES.KITKAT_WATCH) | ||
| @Override | ||
| public void onReceive(Context context, Intent intent) { | ||
| String action = intent.getAction(); | ||
| if (action == null) { | ||
| return; | ||
| } | ||
| if (Intent.ACTION_SCREEN_OFF.equals(action) && !isScreenOn(context)) { | ||
| CameraHelper helper = CameraHelper.getInstance(context); | ||
| helper.turnOffAll(context); | ||
| } | ||
| } | ||
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| /** | ||
| * Checks if the screen is actually turned off because {@link Intent#ACTION_SCREEN_OFF} doesn't necessarily indicate that the screen is off. | ||
| * @return true if screen is actually turned off | ||
| */ | ||
| @RequiresApi(api = Build.VERSION_CODES.KITKAT_WATCH) | ||
| private boolean isScreenOn(Context context) { | ||
| Display display = requireNonNull(DisplayManagerCompat.getInstance(context).getDisplay(Display.DEFAULT_DISPLAY)); | ||
| return display.getState() != Display.STATE_OFF; | ||
| } | ||
| } |
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