Android 设置屏幕亮度
jopen
10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>
/** * 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