Question

    WindowManager.LayoutParams layout = getWindow().getAttributes();
    layout.screenBrightness = 1F;
    getWindow().setAttributes(layout);

我将此代码添加到按钮onClick并且它有效！但是，由于屏幕没有亮起，因此有更高的值吗？

Answer 1

As stated in the documentation，不。将screenBrightness设置为1应将亮度调整为全光。

Answer 2

你应该可以将值设置为1L，它应该达到最大亮度，因为这是最大亮度

WindowManager.LayoutParams layout = getWindow().getAttributes();
layout.screenBrightness = 1F;
getWindow().setAttributes(layout);

将其设置为最大亮度..

Answer 3

您应该在设置亮度之前先禁用屏幕调光，否则可能会获得低于MAX的亮度！在设置亮度之前尝试这样的事情：

// disable screen dimming (note - this also requires setting in manifest file)
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "DoNotDimScreen");

Answer 4

您使用此代码

float SysBackLightValue = 255f;


android.provider.Settings.System.putInt(BatteryBoosterActivity.this.getContentResolver(),   android.provider.Settings.System.SCREEN_BRIGHTNESS,(int) SysBackLightValue);                                    
Window myWindow =BatteryBoosterActivity.this. getWindow();
WindowManager.LayoutParams winParams = myWindow.getAttributes();                                    winParams.screenBrightness = 255f;
myWindow.setAttributes(winParams);

Answer 5

完整示例显示了如何通过编码，前景，背景来改变亮度。 brightnessdemo

Android屏幕亮度最大值？

5 个答案: