android - 在 Android 服务中替代使用 Window

Question

我想使用以下代码关闭我从https://stackoverflow.com/a/4937448/1218762获得的 Button back

final Window win = getWindow();
final WindowManager.LayoutParams winParams = win.getAttributes();
winParams.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;

//set screen brightness to the lowest possible
winParams.screenBrightness = 0.01f;

if (Build.VERSION.SDK_INT < 8) {
  // hack for pre-froyo to set buttonBrightness off
  try {
      Field buttonBrightness = winParams.getClass().getField(
            "buttonBrightness");
      buttonBrightness.set(winParams, 0);
     }   catch (Exception e) {
       e.printStackTrace();
     }
} else {
 winParams.buttonBrightness = 0;
 }
win.setAttributes(winParams);

参考：访问夜间模式，您可以在服务中关闭按钮灯，我知道服务没有窗口，但怎么可能？

谢谢你。

Answer 1

我建议您的一种简单方法是向您广播某种关闭消息，并在onReceive方法中执行所需的操作。ServiceActivityBroadcastReceiver