iOSPush.md

#iOS usage 在 react-native link 之后，打开 iOS 工程。 Xcode 工程中需要注册个推 SDK 、注册 deviceToken 、监听消息回调，才能正常使用推送服务，只需要通过以下几步即可集成：

1、AppDelegate.h 中添加如下代码，导入头文件并实现两个 Delegate：

// 导入头文件
#import <RongIMLib/RongIMLib.h>
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_10_0
#import <UserNotifications/UserNotifications.h>
#endif

// 这里需要实现 UNUserNotificationCenterDelegate
@interface AppDelegate : UIResponder <UIApplicationDelegate,UNUserNotificationCenterDelegate>

@property (nonatomic, strong) UIWindow *window;

@end

2、AppDelegate.m 的didFinishLaunchingWithOptions 方法里面添加如下代码：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // 注册远程通知
    [self registerRemoteNotification];
}

/** 注册远程通知 */
- (void)registerRemoteNotification {
    /*
     警告：Xcode8的需要手动开启“TARGETS -> Capabilities -> Push Notifications”
     */
    
    /*
     警告：该方法需要开发者自定义，以下代码根据APP支持的iOS系统不同，代码可以对应修改。
     以下为演示代码，注意根据实际需要修改，注意测试支持的iOS系统都能获取到DeviceToken
     */
    if ([[UIDevice currentDevice].systemVersion floatValue] >= 10.0) {
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_10_0 // Xcode 8编译会调用
        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        center.delegate = self;
        [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionCarPlay) completionHandler:^(BOOL granted, NSError *_Nullable error) {
            if (!error) {
                NSLog(@"request authorization succeeded!");
            }
        }];
        
        [[UIApplication sharedApplication] registerForRemoteNotifications];
#else // Xcode 7编译会调用
        UIUserNotificationType types = (UIUserNotificationTypeAlert | UIUserNotificationTypeSound | UIUserNotificationTypeBadge);
        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:types categories:nil];
        [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
        [[UIApplication sharedApplication] registerForRemoteNotifications];
#endif
    } else if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) {
        UIUserNotificationType types = (UIUserNotificationTypeAlert | UIUserNotificationTypeSound | UIUserNotificationTypeBadge);
        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:types categories:nil];
        [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
        [[UIApplication sharedApplication] registerForRemoteNotifications];
    } else {
        UIRemoteNotificationType apn_type = (UIRemoteNotificationType)(UIRemoteNotificationTypeAlert |
                                                                       UIRemoteNotificationTypeSound |
                                                                       UIRemoteNotificationTypeBadge);
        [[UIApplication sharedApplication] registerForRemoteNotificationTypes:apn_type];
    }
}

3、在AppDelegate.m 的didRegisterForRemoteNotificationsWithDeviceToken 方法中注册 DeviceToken，如下所示：

- (void)application:(UIApplication *)application
didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
    NSString *token =
    [[[[deviceToken description] stringByReplacingOccurrencesOfString:@"<"
                                                           withString:@""]
      stringByReplacingOccurrencesOfString:@">"
      withString:@""]
     stringByReplacingOccurrencesOfString:@" "
     withString:@""];
    
    [[RCIMClient sharedRCIMClient] setDeviceToken:token];
}

4、为了在收到推送点击进入应用能够获取该条推送内容需要在 AppDelegate.m didReceiveRemoteNotification 方法里面添加 [[NSNotificationCenter defaultCenter] postNotificationName:kJPFDidReceiveRemoteNotification object:userInfo] 方法，注意：这里需要在两个方法里面加一个是iOS7以前的一个是iOS7即以后的，如果AppDelegate.m 没有这个两个方法则直接复制这两个方法，如下所示：

#pragma mark - APP运行中接收到通知(推送)处理 - iOS 10以下版本收到推送

/** APP已经接收到“远程”通知(推送) - 透传推送消息  */
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult result))completionHandler {
    
    // 控制台打印接收APNs信息
    NSLog(@"\n>>>[Receive RemoteNotification]:%@\n\n", userInfo);
    
    completionHandler(UIBackgroundFetchResultNewData);
}

#pragma mark - iOS 10中收到推送消息

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_10_0
//  iOS 10: App在前台获取到通知
- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler {
    
    NSLog(@"willPresentNotification：%@", notification.request.content.userInfo);
    
    // 根据APP需要，判断是否要提示用户Badge、Sound、Alert
    completionHandler(UNNotificationPresentationOptionBadge | UNNotificationPresentationOptionSound | UNNotificationPresentationOptionAlert);
}

//  iOS 10: 点击通知进入App时触发
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler {
    
    NSLog(@"didReceiveNotification：%@", response.notification.request.content.userInfo);
    
    completionHandler();
}
#endif