小编W.v*_*nus的帖子

我在 iOS 10 中使用 CXCallObserver 更改了 CTCallCenter。

这是我的代码：

#import <CallKit/CXCallObserver.h>
#import <CallKit/CXCall.h>

-(void)viewDidLoad {

    CXCallObserver *callObserver = [[CXCallObserver alloc] init];
    [callObserver setDelegate:self queue:nil];

    ... ...
}

- (void)callObserver:(CXCallObserver *)callObserver callChanged:(CXCall *)call {
    if (call.hasConnected) {
        NSLog(@"********** voice call connected **********/n");        
    } else if(call.hasEnded) {
        NSLog(@"********** voice call disconnected **********/n");        
    }
}

但是我无法收到语音呼叫事件，并且收到了如下警告：

Sending 'HomeViewController *const __strong' to parameter of incompatible type 'id<CXCallObserverDelegate> _Nullable

请帮我。

我正在尝试将我的快速字典转换为Json字符串但是通过说出来会变得奇怪

由于未捕获的异常'NSInvalidArgumentException'而终止应用程序,原因:'JSON写入的无效类型(_SwiftValue)'

我的代码:

let jsonObject: [String: AnyObject] = [
            "firstname": "aaa",
            "lastname": "sss",
            "email": "my_email",
            "nickname": "ddd",
            "password": "123",
            "username": "qqq"
            ]

do {
    let jsonData = try JSONSerialization.data(withJSONObject: jsonObject, options: .prettyPrinted)
    // here "jsonData" is the dictionary encoded in JSON data

    let decoded = try JSONSerialization.jsonObject(with: jsonData, options: [])
    // here "decoded" is of type `Any`, decoded from JSON data

    // you can now cast it with the right type
    if let dictFromJSON = decoded as? [String:String] {
        // …

现在我正在尝试实施Google登录.我跟着这样说:https: //developers.google.com/identity/sign-in/ios/sign-in？ver = swift

但我在AppDelegate.swift中遇到错误:

class AppDelegate: UIResponder, UIApplicationDelegate, GIDSignInDelegate 
....

错误:

类型'AppDelegate'不符合协议'GIDSignInDelegate'

帮我.

我有一个快速的2.2项目.现在我将它升级到Swift 3.0但我有一些错误.

open var gridClippingRect: CGRect
{
    var contentRect = viewPortHandler?.contentRect ?? CGRect.zero
    contentRect.insetInPlace(dx: 0.0, dy: -(self.axis?.gridLineWidth ?? 0.0) / 2.0)
    return contentRect
}

错误:'CGRect'类型的值没有成员'insetInPlace'

如何解决这个错误？