是否可以通过AppDelegate方法handleActionWithIdentifier
呈现视图控制器?
我正在注册类似于以下的行动类别:
action1 = [[UIMutableUserNotificationAction alloc] init];
[action1 setActivationMode:UIUserNotificationActivationModeBackground];
[action1 setTitle:@"Tweet"];
[action1 setIdentifier:NotificationActionOneIdent];
[action1 setDestructive:NO];
[action1 setAuthenticationRequired:NO];
当我的远程通知到达时,我可以在主屏幕上向下拉或向左滑动以查看文字“Tweet”
我的handleActionWithIdentifier
方法非常简单:
- (void)application:(UIApplication *)application handleActionWithIdentifier:(NSString *)identifier forRemoteNotification:(NSDictionary *)userInfo completionHandler:(void (^)())completionHandler {
if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter])
{
SLComposeViewController *tweetSheet = [SLComposeViewController
composeViewControllerForServiceType:SLServiceTypeTwitter];
[tweetSheet setInitialText:@"Tweeting this is awesome!"];
[self.window.rootViewController presentViewController:tweetSheet animated:YES completion:^{}];
}
if (completionHandler) {
completionHandler();
}
}
但是,当我点击通知中的“推文”操作类别时,它什么也没做。它没有显示Twitter推文现在的窗口。
我不希望应用程序必须打开才能执行此操作。想法?
答案 0 :(得分:1)
AppDelegate操作处理程序仅用于执行后台操作,仅在很短的时间内启动应用程序,在后台线程上执行块,然后再次对应用程序进行后台处理。请务必阅读Apple文档:https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIApplicationDelegate_Protocol/#//apple_ref/occ/intfm/UIApplicationDelegate/application:handleActionWithIdentifier:forRemoteNotification:completionHandler:
对于您的示例而不是呈现推文视图控制器,您需要在没有用户交互的情况下直接发送推文。
答案 1 :(得分:0)
试试这个:
self.window.rootViewController = tweetSheet;
答案 2 :(得分:0)
试试这个
- (void)application:(UIApplication *)application handleActionWithIdentifier:(NSString *)identifier forRemoteNotification:(NSDictionary *)userInfo completionHandler:(void (^)())completionHandler {
if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter])
{
SLComposeViewController *tweetSheet = [SLComposeViewController
composeViewControllerForServiceType:SLServiceTypeTwitter];
[tweetSheet setInitialText:@"Tweeting this is awesome!"];
[self.window makeKeyAndVisible];
[self.window.rootViewController presentViewController:tweetSheet animated:YES completion:^{}];
}
if (completionHandler) {
completionHandler();
}
}