Question

我得到SwiftDeferredNSDictionaryVs11AnyHashableP__ objectForKeyNotNull:

2017-07-14 12:52:58.138873+0200 Adding-Content-to-Apple-Music[1954:511529] -[_TtGCs26_SwiftDeferredNSDictionaryVs11AnyHashableP__ objectForKeyNotNull:]: unrecognized selector sent to instance 0x1c02239c0

用于在快速Dictionary

中定义的对象

let apiOptions:Dictionary<String,Any> = [
            "options.push.enabled": false,
            "options.debuglevel": 4,
            ]

我传递给Objective-C库，类似于

if ([options objectForKeyNotNull:@"options.push.enabled"]) {
        pushEnabled = [[options objectForKey:@"options.push.enabled"] boolValue];
    }
    if ([options objectForKeyNotNull:@"options.debuglevel"]) {
        debugLevel = [[options objectForKey:@"options.debuglevel"] intValue];
    }

在堆栈跟踪中我喜欢

 0x1033b1da4 <+316>:  ldr    x20, #0xa1074             ; "objectForKeyNotNull:"
    0x1033b1da8 <+320>:  adr    x2, #0x7f718              ; @"options.push.enabled"
    0x1033b1dac <+324>:  nop    
    0x1033b1db0 <+328>:  mov    x1, x20
    0x1033b1db4 <+332>:  bl     0x1033f91f0               ; symbol stub for: objc_msgSend
    0x1033b1db8 <+336>:  mov    x29, x29
    0x1033b1dbc <+340>:  bl     0x1033f9238               ; symbol stub for: objc_retainAutoreleasedReturnValue
    0x1033b1dc0 <+344>:  mov    x21, x0

因此，options swift中定义的Dictionary对象似乎没有选择器objectForKeyNotNull。

[UPDATE]

我似乎无法加载像objectForKeyNotNull这样的ObjC类别：

#import <Foundation/Foundation.h>

@interface NSDictionary (MXMExtensions)
- (id)objectForKeyNotNull:(id)aKey;
@end

@interface NSData (EOUtil)
- (NSData*)dataByHmacSHA1EncryptingWithKey:(NSData*)key;
@end

即使它定义了公共标题。

另一个类别也是如此：

2017-07-14 15:10:21.059117+0200 Adding-Content-to-Apple-Music[2075:560878] +[UIDevice platformString]: unrecognized selector sent to class 0x1b13b1b98

它是

@implementation UIDevice (Hardware)
//...
+ (NSString *)platformString {
//...
}

在Xcode / ObjC项目中，我通常会将其他链接器标志设置为-ObjC，但在与ObjC Framework链接的Xcode / Swift项目中，这似乎无法正常工作

Swift无法识别的ObjC类选择器

0 个答案: