set Screen Brightness And Apply - Android User Interface

Android examples for User Interface:Screen Brightness

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Description

set Screen Brightness And Apply

Demo Code


//package com.java2s;

import android.app.Activity;

import android.content.Context;

import android.provider.Settings;
import android.view.Window;
import android.view.WindowManager;

public class Main {

    public static boolean setScreenBrightnessAndApply(Activity activity,
            int screenBrightness) {
        boolean result = true;
        result = setScreenBrightness(activity, screenBrightness);
        if (result) {
            setWindowBrightness(activity, screenBrightness);
        }/*from   w w w .j av  a  2  s .  co m*/
        return result;
    }

    public static boolean setScreenBrightness(Context context,
            int screenBrightness) {
        int brightness = screenBrightness;
        if (screenBrightness < 1) {
            brightness = 1;
        } else if (screenBrightness > 255) {
            brightness = screenBrightness % 255;
            if (brightness == 0) {
                brightness = 255;
            }
        }
        boolean result = Settings.System.putInt(
                context.getContentResolver(),
                Settings.System.SCREEN_BRIGHTNESS, brightness);
        return result;
    }

    public static void setWindowBrightness(Activity activity,
            float screenBrightness) {
        float brightness = screenBrightness;
        if (screenBrightness < 1) {
            brightness = 1;
        } else if (screenBrightness > 255) {
            brightness = screenBrightness % 255;
            if (brightness == 0) {
                brightness = 255;
            }
        }
        Window window = activity.getWindow();
        WindowManager.LayoutParams localLayoutParams = window
                .getAttributes();
        localLayoutParams.screenBrightness = (float) brightness / 255;
        window.setAttributes(localLayoutParams);
    }
}

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