錯(cuò)誤描述

在實(shí)現(xiàn)從相冊(cè)獲取照片的功能時(shí)，發(fā)現(xiàn)調(diào)用 UIImagePickerController 時(shí)候報(bào)如下錯(cuò)誤：

UIImagePickerController UIViewController create error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.webank.wemoney.apple-extension-service was invalidated." 

解決辦法

常規(guī)Google一下，沒有找到類似的解答，就從代碼著手分析。

首先想到的是swizzling方法，項(xiàng)目中動(dòng)態(tài)改了一下bundle id:

- (void)modifyBundleId{
    NSLog(@"%@",NSStringFromSelector(_cmd));
    Method originMethod = class_getInstanceMethod([NSBundle class], @selector(bundleIdentifier));
    Method swizzlingMethod = class_getInstanceMethod([NSBundle class], @selector(tk_bundleIdentifier));
    
    BOOL didAddMethod =  class_addMethod([NSBundle class], @selector(bundleIdentifier), method_getImplementation(swizzlingMethod), method_getTypeEncoding(swizzlingMethod));
    
    if (didAddMethod) {
        class_replaceMethod([NSBundle class], @selector(tk_bundleIdentifier), method_getImplementation(originMethod), method_getTypeEncoding(originMethod));
    }else{
        method_exchangeImplementations(originMethod, swizzlingMethod);
    }
}

tk_bundleIdentifier 方法實(shí)現(xiàn)如下：

#import "NSBundle+TKBundle.h"
#import <objc/runtime.h>

@implementation NSBundle (TKBundle)

- (NSString *)tk_bundleIdentifier{
    NSLog(@"%@",NSStringFromSelector(_cmd));
    return @"com.tk.test";
}
@end

從項(xiàng)目中移除這個(gè) swizzling，重新run代碼，正常了！??！

總結(jié)

黑魔法固然好用，但是有很大的副作用，慎用?。?！