关于android4.2平板Home键的监听
1、android4.0以上的平板Home键是不能屏蔽的,至少在应用层是这样。但是可以监听Home键的触发,主要是通过广播的监听来接受Hone键的触发广播。在这里,有必要重点提醒一下,接收Home的点击广播之前,这个Home键该处理的事情已经做了,也就是说,已经回到Launcher桌面,回调了Onresume()方法。
2、具体代码实现:
// 监听home键广播,在oncreate()方法里面注册广播 receiver = new HomeKeyEventBroadCastReceiver(); registerReceiver(receiver, new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)); //广播接收器 class HomeKeyEventBroadCastReceiver extends BroadcastReceiver { static final String SYSTEM_REASON = "reason"; static final String SYSTEM_HOME_KEY = "homekey";// home key static final String SYSTEM_RECENT_APPS = "recentapps";// long home key @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_REASON); if (reason != null) { if (reason.equals(SYSTEM_HOME_KEY)) { // home key处理点 pager.setCurrentItem(2); } else if (reason.equals(SYSTEM_RECENT_APPS)) { // long homekey处理点 } } } } }