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using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.Android;
using UnityEngine.UI;

public class NewBehaviourScript : MonoBehaviour
{
   // <uses-permission android:name="android.permission.WRITE_SETTINGS"></uses-permission>
    // Use this for initialization
    void Start()
    {

        brightness = 0;
        add.onClick.AddListener(ADD);
        reduce.onClick.AddListener(Reduce);

    }
    public Button add;
    public Button reduce;
    public Text text;
    public float brightness;

    void ADD()
    {
        brightness += 0.1f;

        if (brightness>=1)
        {
            brightness = 1;
        }
        SetApplicationBrightnessTo(brightness);
        text.text = brightness.ToString();
    }

    void Reduce()
    {
        brightness -= 0.1f;

        if (brightness <= 0)
        {
            brightness = 0;
        }
        SetApplicationBrightnessTo(brightness);
        text.text = brightness.ToString();
    }

    void SetApplicationBrightnessTo(float Brightness)
    {
        AndroidJavaObject Activity = null;
        Activity = new AndroidJavaClass("com.unity3d.player.UnityPlayer").GetStatic<AndroidJavaObject>("currentActivity");
        Activity.Call("runOnUiThread", new AndroidJavaRunnable(() => {
            AndroidJavaObject Window = null, Attributes = null;
            Window = Activity.Call<AndroidJavaObject>("getWindow");
            Attributes = Window.Call<AndroidJavaObject>("getAttributes");
            Attributes.Set("screenBrightness", Brightness);
            Window.Call("setAttributes", Attributes);
        }));
    }

}

 

本文标签： 亮度屏幕Unity

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