Android 经过广播接听Home键

Android 通过广播接听Home键

Android 通过广播接听Home键,这个方式是比较好用的一种方式

1.自定义广播

public class BroadcastReceiverEx extends BroadcastReceiver{	String SYSTEM_REASON = "reason";      String SYSTEM_HOME_KEY = "homekey";      String SYSTEM_HOME_KEY_LONG = "recentapps";             @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 (TextUtils.equals(reason, SYSTEM_HOME_KEY)) {                   //按了home键            	Constants.isHome = true;                //ToastUtil.showToast(context, "按了home键" + isHome);            }else if(TextUtils.equals(reason, SYSTEM_HOME_KEY_LONG)){                  //长按home键,显示最近使用的程序列表              	            }          }       }  }

2.注册广播

		//HOME键监听注册		registerReceiver(new BroadcastReceiverEx(), new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS));

3.按了Home键之后你想进行的操作

	@Override	protected void onRestart() {		super.onRestart();		if (Constants.isHome) {			// ToastUtil.showToast(context, ""+Constants.isHome);			Constants.isHome = false;			//按了HOME键重启的操作					}	}

4，判断是否是按了Home键

	/** 监听HOME键 */	public static boolean isHome = false;

5.解除注册 （我是在Application中注册的所以我到onLowMemory中解除注解）

	@Override	public void onLowMemory() {		// TODO Auto-generated method stub		super.onLowMemory();		unregisterReceiver(broadcastReceiverEx);	}