iOs -如何通过url将数据从Widget (Today Extension)传递到App？

Question

我正在尝试开发一个小部件(今天的扩展)，它传递给主应用程序一堆数据。

我在info.plist中添加了这个

<key>CFBundleURLTypes</key>
    <array>
        <dict>
            <key>CFBundleURLSchemes</key>
            <array>
                <string>TodayWidget</string>
            </array>
            <key>CFBundleURLName</key>
            <string>xxx.xxx.xxx</string>
        </dict>
    </array>

我使用下面的代码从小部件(成功地)调用了应用程序

    let url = URL(string:"TodayWidget://?key=value")
    self.extensionContext?.open(url!, completionHandler: nil)

如何访问这些值？

我也看到了这一点，但xcode警告我代码已被弃用

Pass data between two Apps by url scheme in swift?

谢谢!

Answer 1

首先，你的方案用法是错误的。CFBundleURLSchemes是从外部引用您的应用程序，而不是专门为您的扩展设计的。更好的用法是：

let url = URL(string:"yourAppName://TodayWidget?key=value")
let url = URL(string:"yourAppName://action?param1=value1&param2=value2")

然后，您可以确定源或操作...下面是从参数中获取字典的代码(url来自application:openURL)

根据您的需要调整验证。

if (!url) return NO;
if ([url.absoluteString rangeOfString:@"://"].location == NSNotFound) return NO;
if ([url.absoluteString rangeOfString:@"?"].location == NSNotFound) return NO;

NSMutableDictionary* queryString = [NSMutableDictionary dictionaryWithCapacity:1];

__block NSMutableDictionary* paramDict = [[NSMutableDictionary alloc]init];
[paramDict setValue:[url scheme] forKey:@"protocol"];
[paramDict setValue:[url absoluteString] forKey:@"url"];
[paramDict setValue:[[url.absoluteString componentsSeparatedByString:@"://"][1] componentsSeparatedByString:@"?"].firstObject forKey:@"path"];
[paramDict setValue:queryString forKey:@"parameters"];

NSString* urlString = [url.absoluteString stringByRemovingPercentEncoding];
NSString* paramString = [urlString componentsSeparatedByString:@"?"][1];
NSArray* params = [paramString componentsSeparatedByString:@"&"];

for (NSString* param in params) 
{
    NSArray* paramArray = [param componentsSeparatedByString:@"="];
    if (paramArray.count != 2) {
        NSLog(@"Malformated url:%@", urlString);
        continue;
    }

    NSString* key = paramArray[0];
    NSString* value = paramArray[1];

    if (!key.length | !value.length) {
        NSLog(@"Malformated key %@ value %@ in url:%@", key, value, urlString);
        continue;
    }
    [queryString setValue:value forKey:key];
}
NSLog(@"%@", [paramDict toJSONString]);

Answer 2

试试这个：

 let url = URL(string:"TodayWidget://value")
 self.extensionContext?.open(url!, completionHandler: nil)

在Containing App中访问value

在AppDelegate中，编写此方法：

func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool
{
    if url.scheme == "NearbyRestaurantsTodayExtension"
    {
        if let value = url.host
        {
            //TODO: Write your code here
        }
    }
    return true
}