WindowManager.LayoutParams layout = getWindow().getAttributes();
layout.screenBrightness = 1F;
getWindow().setAttributes(layout);
我将此代码添加到按钮onClick,它的工作! 但是有没有更高的值,因为屏幕没有点亮MAX?Android屏幕亮度最大值?
WindowManager.LayoutParams layout = getWindow().getAttributes();
layout.screenBrightness = 1F;
getWindow().setAttributes(layout);
我将此代码添加到按钮onClick,它的工作! 但是有没有更高的值,因为屏幕没有点亮MAX?Android屏幕亮度最大值?
As stated in the documentation,no。将screenBrightness
设置为1应将亮度调整为全亮。
您应该能够设定值1L和它应该到最大亮度,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..
,应禁用屏幕在设置亮度之前先调暗,否则可能会出现小于最大亮度!尝试这样的事情你设置亮度前:
// 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");
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);
一个完整的示例演示如何通过编码,前景,背景改变亮度。 brightnessdemo
一个很好的使用方法是使用常量'BRIGHTNESS_OVERRIDE_FULL'。它的值是1.0f – Cristan 2017-11-28 14:56:43