环信 之 iOS 客户端集成三：基础功能

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
	//registerSDKWithAppKey:注册的appKey，详细见下面注释。
	//apnsCertName:推送证书名(不需要加后缀)，详细见下面注释。
    [[EaseMob sharedInstance] registerSDKWithAppKey:@"douser#istore" apnsCertName:@"istore_dev"];
    [[EaseMob sharedInstance] application:application didFinishLaunchingWithOptions:launchOptions];
    return YES;
}
 
// App进入后台
- (void)applicationDidEnterBackground:(UIApplication *)application
{
    [[EaseMob sharedInstance] applicationDidEnterBackground:application];
}
 
// App将要从后台返回
- (void)applicationWillEnterForeground:(UIApplication *)application
{
    [[EaseMob sharedInstance] applicationWillEnterForeground:application];
}
 
// 申请处理时间
- (void)applicationWillTerminate:(UIApplication *)application
{
    [[EaseMob sharedInstance] applicationWillTerminate:application];
}