前一陣子介紹圖解APP訊息推播流程，是關於iOS和Android兩大平台從發送到接收的整個過程，現在我們想要實作處理推送通知 (Process Push Notification)，iOS SDK已經包好方法只要註冊成功後，就能透過某個method來繼續接下來的處理。可以先參考圖解蘋果推播通知服務 (Apple Push Notification Service)。
現在有兩個case要處理：
- app在前景與背景運作時（已在記憶體中）
- app第一次載入時（沒在記憶體中）
我想要從收到通知的列表中點擊來觸發，第一點沒什麼問題，第二點就無法觸發該method：
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo;
怎麼辦呢？還沒開啟app，最先會經過這method：
– (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions;
於是乎我們可以在Appdelegate.m中實作：
/**
Theme: Process Push Notification
IDE: Xcode 7
Language: Objective C
Date: 105/04/19
Author: HappyMan
Blog: https://cg2010studio.wordpress.com/
*/
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
NSDictionary *remoteNotif = [launchOptions objectForKey: UIApplicationLaunchOptionsRemoteNotificationKey];
// Accept push notification when app is not open
if (remoteNotif) {
[self handleRemoteNotification:application userInfo:remoteNotif];
return YES;
}
return YES;
}
// Accept push notification when app is open (foreground and background)
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
[self handleRemoteNotification:application didReceiveRemoteNotification:userInfo];
}
-(void)handleRemoteNotification:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
// Do whatever you want here
}
我用iPhone 5c iOS 7測試，真的是在載入時馬上進行我想跳轉到特定頁面的動作呢！
參考：Calling didReceiveRemoteNotification when app is launching for the first time。
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