didFinishLaunchingWithOptions

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

说明：当应用程序启动时执行，应用程序启动入口。只在应用程序启动时执行一次。
application参数用来获取应用程序的状态、变量等，值得注意的是字典参数：(NSDictionary *)launchOptions，该参数存储程序启动的原因。
若用户直接启动，lauchOptions内无数据;
若由其他应用程序通过openURL:启动，则UIApplicationLaunchOptionsURLKey对应的对象为启动URL（NSURL）,UIApplicationLaunchOptionsSourceApplicationKey对应启动的源应用程序的bundle ID (NSString)；
若由本地通知启动，则UIApplicationLaunchOptionsLocalNotificationKey对应的是为启动应用程序的的本地通知对象(UILocalNotification)；
若由远程通知启动，则UIApplicationLaunchOptionsRemoteNotificationKey对应的是启动应用程序的的远程通知信息userInfo（NSDictionary）；
其他key还有UIApplicationLaunchOptionsAnnotationKey,UIApplicationLaunchOptionsLocationKey,
UIApplicationLaunchOptionsNewsstandDownloadsKey。 如果要在启动时，做出一些区分，那就需要在下面的代码做处理。 比如：应用可以被某个其它应用调起（作为该应用的子应用），要实现单点登录，那就需要在启动代码的地方做出合理的验证，并跳过登录。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    NSURL *url = [launchOptionsobjectForKey:UIApplicationLaunchOptionsURLKey];    
if(url) {        
    }

    NSString *bundleId = [launchOptionsobjectForKey:UIApplicationLaunchOptionsSourceApplicationKey];  
  if(bundleId) {
    }    UILocalNotification * localNotify = [launchOptionsobjectForKey:UIApplicationLaunchOptionsLocalNotificationKey]; 
   if(localNotify) {    }
    NSDictionary * userInfo = [launchOptionsobjectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];    if(userInfo)  {
    }}
 应用 /**

     * 跳转支付宝app支付时，app被kill，支付完成后，从支付宝app跳转app，return NO 不调用application: openURL:sourceApplication:annotation:(返回app首页)

     */

    if (launchOptions) {

        NSString *appIDF = [launchOptionsobjectForKey:UIApplicationLaunchOptionsSourceApplicationKey];

        if (appIDF && [appIDFisEqualToString:@"com.alipay.iphoneclient"]) {

            returnNO;

        }

    }

#pragma mark--外部应用跳转到app的url处理

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation

{

    NSString *urlStr = [urlabsoluteString];

    // 支付宝app进app

    if(sourceApplication && [sourceApplicationisEqualToString:@"com.alipay.iphoneclient"]){

        [[AlipaySDKdefaultService] processOrderWithPaymentResult:urlstandbyCallback:^(NSDictionary *resultDic) {

            NSDictionary *dict = @{ALIPayDidCompleteURLKey:urlStr};

            [[NSNotificationCenterdefaultCenter ] postNotificationName:ALIPayFromZFBDidCompleteNotificationobject:resultDic userInfo:dict];

        }];

    }

    returnYES;

}

//在支付类初始化方法
        [[NSNotificationCenterdefaultCenter] addObserver:selfselector:@selector(processAliPayResult:)name:ALIPayFromZFBDidCompleteNotificationobject:nil];