Android监听Home键和Recent Apps键

一林三撇

于 2017-06-28 09:35:01 发布

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分类专栏： Android 文章标签： android

本文链接：https://blog.youkuaiyun.com/mushanps/article/details/73826196

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本文介绍如何在Android中实现监听Home键和Recent Apps键的点击事件，通过创建HomeKeyEventBroadcastReceiver并动态注册来捕获ACTION_CLOSE_SYSTEM_DIALOGS意图。

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1、实现一个监听者

public class HomeKeyEventBroadcastReceiver extends BroadcastReceiver{
    static final String SYSTEM_REASON = "reason";
    static final String SYSTEM_HOME_KEY = "homekey";
    static final String SYSTEM_RECENT_APPS = "recentapps";
    static final String TAG = "HomeKeyEvent";
    @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))
                {
                    Log.i(TAG,"收到home按键点击");
                }
                else if(reason.equals(SYSTEM_RECENT_APPS))
                {
                    Log.i(TAG,"收到recent按键点击");
                }
            }
        }
    }
}

2、动态注册该监听者

“`
HomeKeyEventBroadcastReceiver receiver = new HomeKeyEventBroadcastReceiver();
registerReceiver(receiver,new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS));

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