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捕獲方法說明

1.Intent.ACTION_CLOSE_SYSTEM_DIALOGS和Intent.ACTION_TIME_TICK不能再Manifest中注冊使用，必須在程序中動態注冊

2.Intent.ACTION_TIME_TICK按照時鐘刻度，即開始下一分鐘時自動發送廣播

3.這2種廣播屬于“程序”級別的廣播，不能作為app級別的廣播使用

二、代碼實戰

捕獲HomeKey與TIME_TICK

public?class?CapatureHomeKey?extends?BaseActivity?{HomeKeyEventBroadCastReceiver?receiver;@Overrideprotected?void?onCreate(Bundle?saveInstance)?{super.onCreate(saveInstance);getWindow().setBackgroundDrawableResource(R.drawable.avatar12);receiver?=?new?HomeKeyEventBroadCastReceiver();IntentFilter?filter=new?IntentFilter();filter.addAction(Intent.ACTION_TIME_TICK);filter.addAction(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);registerReceiver(receiver,filter);}@Overrideprotected?void?onDestroy()?{super.onDestroy();unregisterReceiver(receiver);}private?class?HomeKeyEventBroadCastReceiver?extends?BroadcastReceiver?{static?final?String?SYSTEM_REASON?=?"reason";static?final?String?SYSTEM_HOME_KEY?=?"homekey";//?home?keystatic?final?String?SYSTEM_RECENT_APPS?=?"recentapps";//?long?home?keyprivate?final?String?TAG?=?"HomeKeyTag";@Overridepublic?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?(SYSTEM_HOME_KEY.equals(reason))?{Log.d(TAG,?"--->"+SYSTEM_HOME_KEY);?//捕獲到Home鍵}else?if?(SYSTEM_RECENT_APPS.equals(reason))?{Log.d(TAG,?"--->"+SYSTEM_RECENT_APPS);?//捕獲到最近打開的Activity}}else?if?(action.equals(Intent.ACTION_TIME_TICK))?{//to?do}}}}

轉載于:https://my.oschina.net/ososchina/blog/347925

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