小编Mur*_*han的帖子

我希望AFNetworking在Objective-C中使用与Swift中的Alamofire NetworkReachabilityManager 类似的功能:

//Reachability detection
[[AFNetworkReachabilityManager sharedManager] startMonitoring];
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
    switch (status) {
        case AFNetworkReachabilityStatusReachableViaWWAN: {
            [self LoadNoInternetView:NO];
            break;
        }
        case AFNetworkReachabilityStatusReachableViaWiFi: {
            [self LoadNoInternetView:NO];
            break;
        }
        case AFNetworkReachabilityStatusNotReachable: {
            break;
        }
        default: {
            break;
        }
    }
}];

我目前正在使用监听器来了解网络状态的变化

let net = NetworkReachabilityManager()
net?.startListening()

有人可以描述如何支持这些用例吗？

我想设计一个用于设置出生日期的 UI。为此，我选择UIDatePickerView. 现在我想将日期限制在 01-01-1990 和当前日期之间。它不应显示未来日期和过去日期。目前我正在使用以下代码：

NSDateComponents *components=[[NSDateComponents alloc] init];

[components setYear:1900];

pickerView.datePicker.minimumDate = [[NSCalendar currentCalendar] dateFromComponents:components];
pickerView.datePicker.maximumDate=[NSDate date]

它限制了日期，但它允许用户滚动到未来日期和过去日期。我怎样才能隐藏或避免它们？

我可以在 iPad 上的通讯录应用程序中看到该功能。要查看联系人 --> 按顶部的“+”符号，然后按添加生日按钮。

我正在使用FBSDKCoreKit(4.12.0)FBSDKLoginKit(4.12.0)我首先得到屏幕1

这种方法永远不会被调用.

FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];
[login logInWithReadPermissions:@[@"email",@"public_profile"] fromViewController:self handler:^(FBSDKLoginManagerLoginResult *result, NSError *error) {
    //never called
}];

得到这个警告

 Warning: Attempt to present <FBSDKContainerViewController: 0x16570810> on <ViewController: 0x16528870> whose view is not in the window hierarchy!

然后我按下确定按钮我得到空白页面而不移动到任何其他页面

我使用的Plist文件是

对于Transpost安全

    <key>NSAppTransportSecurity</key>
        <dict>
            <key>NSAllowsArbitraryLoads</key>
            <true/>
            <key>NSExceptionDomains</key>
            <dict>
                <key>facebook.com</key>
                <dict>
                    <key>NSExceptionRequiresForwardSecrecy</key>
                    <false/>
                    <key>NSIncludesSubdomains</key>
                    <true/>
                </dict>
                <key>fbcdn.net</key>
                <dict>
                    <key>NSExceptionRequiresForwardSecrecy</key>
                    <false/>
                    <key>NSIncludesSubdomains</key>
                    <true/>
                </dict>
            </dict>
        </dict>

Query schems


    <key>LSApplicationQueriesSchemes</key>
        <array>
            <string>fbauth</string>
            <string>fbapi</string>
            <string>fb-messenger-api</string>
            <string>fbauth2</string>
            <string>fbshareextension</string>
            <string>fbapi20130214</string>
            <string>fbapi20130410</string>
            <string>fbapi20130702</string>
            <string>fbapi20131010</string>
            <string>fbapi20131219</string>
            <string>fbapi20131219</string>
            <string>fbapi20140410</string>
            <string>fbapi20140116</string>
            <string>fbapi20150313</string> …

Swizzling 不执行动态方法交换。这是我使用的代码。我听说这是一个解决方案，其中依赖注入无法在 xcode 7 中的 XCTest 中执行。您能否通过示例解释一下 Swizzling over DI（Dependency）？

#import "TNUserDetail+Swizzle.h"
#import <objc/runtime.h>

@implementation TNUserDetail (Swizzle)

+ (void) swizzleInstanceSelector:(SEL)originalSelector
                 withNewSelector:(SEL)newSelector
{
    Method originalMethod = class_getClassMethod(self, originalSelector);
    Method newMethod = class_getClassMethod(self, newSelector);

    BOOL methodAdded = class_addMethod([self class],
                                       originalSelector,
                                       method_getImplementation(newMethod),
                                       method_getTypeEncoding(newMethod));

    if (methodAdded) {
        class_replaceMethod([self class],
                            newSelector,
                            method_getImplementation(originalMethod),
                            method_getTypeEncoding(originalMethod));
    } else {
        method_exchangeImplementations(originalMethod, newMethod);
    }
}

+(BOOL)isSignUpSwizzle {

    return sighUp;
}


Test
_____

@implementation TNSettingsViewControllerTests

- (void)setUp {
    [super setUp];

    UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];

    self.settingVC = [sb instantiateViewControllerWithIdentifier:@"TNSettingsViewController"];


    [self.settingVC …