Android listening to the home key via radio

Android radio to listen to the home button, this way is a better way to use

1. Custom Broadcasts

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)) {                   //press the HOME key            constants.ishome = true;                Toastutil.showtoast (Context, "Press the home button" + ishome);            } else if (textutils.equals (reason, System_home_key_long)) {                  //long press the HOME key to display the list of recently used Programs}}}}  

2. Register for the broadcast

Home key Monitoring Registration Registerreceiver (new Broadcastreceiverex (), New Intentfilter (Intent.action_close_system_dialogs));

3. What you want to do after you press the home button

@Overrideprotected void Onrestart () {Super.onrestart (); if (constants.ishome) {//Toastutil.showtoast (Context, "" + Constants.ishome); Constants.ishome = false;//Press the home button to restart the operation}}

4, determine whether the home button is pressed

/** Listening Home key */public static Boolean ishome = false;

5. de-Registration (I was registered in application, so I'm onlowmemory to dismiss the note)

@Overridepublic void Onlowmemory () {//TODO auto-generated method Stubsuper.onlowmemory (); Unregisterreceiver ( Broadcastreceiverex);}

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Android listening to the home key via radio