我目前正试图听电源按钮何时按下。最终我想在按两次电源按钮时运行一些代码,以检查屏幕是否锁定或解锁。我目前有这样的:Android:听电源键按
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);//prevent phone from being locked
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_POWER:
{
Toast.makeText(getBaseContext(), "Power button pressed", Toast.LENGTH_LONG).show();
return true;
}
case KeyEvent.KEYCODE_MENU:
Toast.makeText(getBaseContext(), "Menu Button Pressed", Toast.LENGTH_LONG).show();
return true;
}
return super.onKeyDown(keyCode, event);
}
该代码工作正常,为菜单键事件烤面包,但不为电源键事件做任何事情。有任何想法吗?
有这个没有API,但你可以使用反射实现它。 http://stackoverflow.com/a/31872330/3496570 – Nepster