监听android的home键

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_HOME:
Toast.makeText(this, "key_home", Toast.LENGTH_LONG).show();
break;
}
return true;
}

//换一种思路，通过广播的方式

/**
* 捕获home键
* @author Administrator
*
*/
public class HomeReceiver extends BroadcastReceiver{
final String SYSTEM_DIALOG_REASON_KEY = "reason";
final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";

@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);
if (reason != null && reason.equals(SYSTEM_DIALOG_REASON_HOME_KEY)) {
Toast.makeText(getApplicationContext(), "捕获到Home键", 0).show();
return;
}
}
}

}