Android 设置屏幕亮度

jopen 8年前

    setScreenMode(Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); // 手动调节屏幕亮度  
    final String[] bgLight = new String[] {"暗","稍暗","标准","稍亮","亮"};                                        Dialog alertDialog3 = new AlertDialog.Builder(MainActivity.this)                    .setTitle("调整屏幕亮度")                    .setSingleChoiceItems(bgLight, 0, new DialogInterface.OnClickListener() {                                         @Override                        public void onClick(DialogInterface dialog, int which) {                            selectedBrightness = which;                            }                        }).                        setPositiveButton("确认", new DialogInterface.OnClickListener() {                            @Override                            public void onClick(DialogInterface dialog, int which) {                                                                int brightness = 0;                                                                switch(selectedBrightness)                                 {                                     case 0:brightness = 10; break;                                     case 1:brightness = 40; break;                                     case 2:brightness = 75; break;                                    case 3:brightness = 110; break;                                     case 4:brightness = 140; break;                                     default:brightness = 75;                                  }                                 setScreenBrightness(brightness);                                saveScreenBrightness(brightness);                            }                         }).                       setNegativeButton("取消", new DialogInterface.OnClickListener() {                            @Override                            public void onClick(DialogInterface dialog, int which) {                            // TODO Auto-generated method stub                                }                            }).                       create();                       alertDialog3.show();  
</div> </div>
</div> </div>
    /**            * 设置当前屏幕亮度的模式                * SCREEN_BRIGHTNESS_MODE_AUTOMATIC=1 为自动调节屏幕亮度            * SCREEN_BRIGHTNESS_MODE_MANUAL=0  为手动调节屏幕亮度            */              private void setScreenMode(int paramInt){                try{                  Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE, paramInt);                }catch (Exception localException){                  localException.printStackTrace();                }              }              /**              * 设置当前屏幕亮度值  0--255              */               private void setScreenBrightness(int paramInt){                                       //Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, paramInt);                    //paramInt = Settings.System.getInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, -1);                    WindowManager.LayoutParams localLayoutParams =  getWindow().getAttributes();                    float f = paramInt / 255.0F;                    localLayoutParams.screenBrightness = f;                    getWindow().setAttributes(localLayoutParams);                                  }               /**                  * 保存当前屏幕亮度值  0--255                  */               private void saveScreenBrightness(int paramInt){                      try{                        Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, paramInt);                      }                      catch (Exception localException){                        localException.printStackTrace();                      }                 }    


参考链接:http://daikainan.iteye.com/blog/1455323

来自:http://blog.csdn.net/willyang519/article/details/9877661