IOS Android: Message Event notification Nsnotificationcenter Eventbus

Article from: Http://blog.csdn.net/intbird

Iosios system comes with Nsnotificationcenter

0,

1, initialization of the program entry

- (BOOL) Application: (uiapplication*) Application Didfinishlaunchingwithoptions: (nsdictionary*) Launchoptions {mainviewcontroller* MainView = [[Mainviewcontroller alloc] init]; MainView. Title= @"Delegate"; Self. Navigatarcontroller= [[UinavigationcontrollerAlloc]init]; [ Self. NavigatarcontrollerPushviewcontroller:mainview Animated:YES]; Self. Window= [[UIWindowAlloc]initwithframe:[[uiscreen Mainscreen]bounds]]; Self. Window. Rootviewcontroller= Self. Navigatarcontroller; [ Self. WindowMakekeyandvisible];return YES;return YES;}

2, registration monitoring and processing methods

#import "MainViewController.h" #import "EventViewController.h"  @interface mainviewcontroller ()@end @implementation mainviewcontroller - (void) Viewdidload {[SuperViewdidload]; [[NsnotificationcenterDefaultcenter]addobserver: SelfSelector@selector(onEvent:) name:@"Event_key"ObjectNil];} -(void) OnEvent: (nsnotification*) notifi{NSString* Message = Notifi. Name; message = [Message Stringbyappendingstring:notifi. Object]; _labtext. Text= message; Uialertcontroller * alert = [Uialertcontroller Alertcontrollerwithtitle:notifi. NameMessage:notifi. ObjectPreferredstyle:uialertcontrollerstylealert]; Uialertaction * Alertcacel = [Uialertaction actionwithtitle:@"Cacel"Style:uialertactionstylecancel handler:Nil];    [Alert Addaction:alertcacel]; [ SelfPresentviewcontroller:alert Animated:YESCompletion:Nil];} - (ibaction) SendMessage: (IDSender {Eventviewcontroller * eventview = [[Eventviewcontroller alloc] init]; [ Self. NavigationcontrollerPushviewcontroller:eventview Animated:YES];}@end

3, invoking the event method

#import "EventViewController.h"  @interface eventviewcontroller ()@end @implementation eventviewcontroller - (void) Viewdidload {[SuperViewdidload];additional setup after loading the view from its nib.}- (ibaction) SendMessage: (ID) Sender {[[NsnotificationcenterDefaultcenter] postnotificationname:@"Event_key"object:@"Post a message!"];}@end

Andorid third-party Eventbus first look at the system comes with the Broadcastreceiver

Broadcastreceiver of one of anrdoid four components
Dynamically registers a broadcast receiver, processes Onreceiver (),
Broadcasts are sent through the Sendbroadcast (intent) method;

   privatenew BroadcastReceiver() {          @Override          publicvoidonReceive(Context context, Intent intent) {              if(intent.getAction().equals(action)){              }          }      };    new IntentFilter();    filter.addAction(action);    registerReceiver(receiver, intentFilter);

And look at the Eventbus.

Official Demo Description:
Https://github.com/greenrobot/EventBus/blob/master/HOWTO.md
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1,gradle dependencies

dependencies {    compile fileTree(dir‘libs‘, include: [‘*.jar‘])    ‘com.android.support:appcompat-v7:22.2.1‘    ‘de.greenrobot:eventbus:3.0.0-beta1‘}

2, register monitoring, must note @Subscribe public void method () {}

 Public  class mainactivity extends appcompatactivity {TextView Tvtext;@Override    protected void onCreate(Bundle savedinstancestate) {Super. OnCreate (Savedinstancestate);        Setcontentview (R.layout.activity_main); Eventbus.getdefault (). Register ( This); Findviewbyid (r.id.button_send). Setonclicklistener (NewView.onclicklistener () {@Override             Public void OnClick(View v) {StartActivity (NewIntent (mainactivity. This, Eventbusactivity.class));        }        });    Tvtext = (TextView) Findviewbyid (R.id.textview); }@Override    protected void OnDestroy() {Super. OnDestroy (); Eventbus.getdefault (). Unregister ( This); }@Subscribe     Public void onEvent(Eventbusevent event)        {String msg = Event.getmessage ();        Tvtext.settext (msg); Toast.maketext ( This, MSG, Toast.length_long). Show (); }}

3, Send Event

 Public  class eventbusactivity extends appcompatactivity {    @Override    protected void onCreate(Bundle savedinstancestate) {Super. OnCreate (Savedinstancestate);        Setcontentview (r.layout.activity_event); Findviewbyid (r.id.button_send). Setonclicklistener (NewView.onclicklistener () {@Override             Public void OnClick(View v) {Eventbus.getdefault (). Post (NewEventbusevent ("Post a message!"));    }        }); }}

Article from: Http://blog.csdn.net/intbird
Above demo
Ios:https://github.com/intbird/iosnsnotificationcenter
Android:https://github.com/intbird/andintbirdeventbus

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

IOS Android: Message Event notification Nsnotificationcenter Eventbus