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我有一个今天的小部件扩展，当我单击一个按钮时，它会打开应用程序。我第一次单击按钮并按照代码执行时，它使用自定义 URL 方案来传递数据。这在 AppDelegate 中进行了解析，并确定了要填充的数据ViewController。使用ViewController情节提要 ID 实例化。将值应用于ViewController的属性之一，然后viewDidLoad根据传入的 Value 填充其余值。这一切都是第一次。

但是，如果我点击主页按钮，打开通知中心，点击我的应用程序中的一个按钮并第二次完成整个过程。我像往常一样单步执行代码，所有值都已设置，但是当ViewController显示时，值（例如UILabel）与第一次相同，但它们应该已经更改。

NSString *url = [NSString stringWithFormat:string ://%@", self.expanededTubeLine.lineName ];

NSExtensionContext *myExtension=[self extensionContext];
[myExtension openURL:[NSURL URLWithString:url] completionHandler:nil];

//

- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {

NSString *tubeLineName = [url host];

NSUserDefaults *defaults = [[NSUserDefaults alloc] initWithSuiteName:@"group.koc.extensiontest"];

if ([defaults objectForKey:@"weekendData"]) {

    NSData *tubeData = [[defaults objectForKey:@"weekendData"] copy];

    TFLParser *parser = [[TFLParser alloc] initWithData:tubeData];
    [parser parseData];
    for (int x = 0; x < parser.delayedTubeLines.count; x++) {

        TubeLine *tl = [[TubeLine alloc] init];
        tl = [parser.delayedTubeLines objectAtIndex:x];
        if ([tl.lineName isEqualToString:tubeLineName]) {

            UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
            TubeLineViewController *tubeLineViewController = [storyboard instantiateViewControllerWithIdentifier:@"TubeLineViewController"];
            tubeLineViewController.tubeLine = tl;


            [self.window.rootViewController presentViewController:tubeLineViewController animated:YES completion:nil];
            return YES;
        }
    }
}

}

//

- (void)viewDidLoad {
    [super viewDidLoad];

    self.tubeLineName.text = self.tubeLine.lineName;
    self.tubeLineName.font = [UIFont openSansLightFontOfSize:18.0f];
    self.tubeLineName.textColor = [UIColor whiteColor];
    self.tubeLineName.backgroundColor = self.tubeLine.lineBackgroundUIColor;
    self.tubeLineName.layer.cornerRadius = 5;
    self.tubeLineName.clipsToBounds = YES;

    self.tubeLineMessage.font = [UIFont openSansLightFontOfSize:18.0f];
    self.tubeLineMessage.text = self.tubeLine.lineMessage;
    self.tubeLineMessage.textColor = [UIColor darkGrayColor];
}
4

1 回答 1

4

听起来视图已经加载，所以在将基于小部件的控制器推送到 handleOpenURL: 函数之前弹出所有视图控制器。

  [self.viewController.navController popToRootViewControllerAnimated:NO];
  if ([self.viewController presentedViewController]) {
      [self.viewController dismissViewControllerAnimated:NO completion:nil];
   }
于 2014-10-01T05:50:09.250 回答