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消息推送流程
手机会一直保持与苹果apns一个通信
当打开app时候，会从苹果apns得到一个token
发送token到后台服务器
服务器发送这个token 和 推送数据给苹果apns （以为push通道是由苹果维护的一个唯一的通道）
苹果apns得到后再根据这个token推送得到的消息给我们的ios设备
我们得到token后就知道是哪个app的推送内容了
消息推送（以v8.0+为例子）（搭建push环境）
- (bool)application:(uiapplication *)application didfinishlaunchingwithoptions:(nsdictionary *)launchoptions
{
//读取系统版本，判断是否大于8.0
if([[[uidevice currentdevice] systemversion] floatvalue] >=8.0) {
//首先向用户询问push的权限，向用户申请权限
uiusernotificationsettings* setting = [uiusernotificationsettings settingsfortypes:uiusernotificationtypebadge | uiusernotificationtypesound | uiusernotificationtypealert categories:nil];
[[uiapplication sharedapplication] registerusernotificationsettings:setting];
}else{
[[uiapplication sharedapplication] registerforremotenotificationtypes:(uiremotenotificationtypebadge | uiremotenotificationtypesound | uiremotenotificationtypealert)];
}
}
//用户同意之后回调，去注册devicetoken
- (void)application:(uiapplication *)application didregisterusernotificationsettings:(nonnull uiusernotificationsettings *)notificationsettings{
[[uiapplication sharedapplication] registerforremotenotifications];
}
//注册成功回调，得到devicetoken
- (void)application:(uiapplication *)application didregisterforremotenotificationswithdevicetoken:(nsdata *)adevicetoken {
dlog(@“succeed regist remote notification");
nsstring* tokenstr = [nsstring stringwithformat:@"%@", adevicetoken];
tokenstr = [tokenstr stringbyreplacingoccurrencesofstring:@" " withstring:@""];
tokenstr = [tokenstr stringbyreplacingoccurrencesofstring:@"<" withstring:@""];
tokenstr = [tokenstr stringbyreplacingoccurrencesofstring:@">" withstring:@""];
//向服务器发送
}
//注册失败回调
- (void)application:(uiapplication *)application didfailtoregisterforremotenotificationswitherror:(nserror *)error {
dlog(@"failed regist remote notification %@ ", error);
}
//当接收到远程通知回调
- (void)application:(uiapplication *)application didreceiveremotenotification:(nsdictionary *)userinfo {
nsdictionary *apsdictionary = [userinfo objectforkey:@"aps"];
//解析json
/*
具体处理。。。
if（...）{
跳转某个controller。。。
}
*/
}
消息推送（本地推送）
@property (nonatomic, retain) uilocalnotification *localnotification;
- (void)background{
_localnotification = [uilocalnotification new];
//多久以后提示用户
_localnotification.firedate = [nsdate datewithtimeintervalsincenow:5];
_localnotification.alertbody = @"你都走了5秒钟了";
_localnotification.alerttitle = @"你妹的!";
_localnotification.userinfo = @{@"key":@"value"};
[[uiapplication sharedapplication] schedulelocalnotification:_localnotification];
}
- (void)foreground{
[[uiapplication sharedapplication] cancellocalnotification:_localnotification];
}
- (void)viewdidload
{
[[nsnotificationcenter defaultcenter] addobserver:self selector:@selector(background) name:uiapplicationdidenterbackgroundnotification object:nil];
[[nsnotificationcenter defaultcenter] addobserver:self selector:@selector(foreground) name:uiapplicationwillenterforegroundnotification object:nil];
}
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