Question

我有一个今天的小部件扩展，当我点击一个按钮时，它打开了应用程序。我第一次单击按钮并按照代码，它使用自定义URL方案来传递数据。这是在AppDelegate中解析的，它确定了用ViewController填充的数据。 ViewController使用故事板ID进行实例化。值将应用于ViewController的某个属性，然后在viewDidLoad中根据传入的值填充其余值。这一切都是第一次。

但是，如果我按下主页按钮，打开通知中心，点击我的应用程序中的按钮，再次完成整个过程..我正常执行代码，所有值都设置，但是显示ViewController时，值（例如UILabel）与第一次相同，但它们应该已更改。

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];
}

Answer 1

听起来已经加载了View，所以在handleOpenURL：function中推送基于widget的控制器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];
   }

从扩展程序打开应用程序，属性仅在第一次更改

1 个答案: