[CIContext initWithOptions:]:无法识别的选择器发送到xcode8中的实例0x170400960

Question

在ios8.3中运行,但在ios9或10中运行没有这个问题.

-[CIContext initWithOptions:]: unrecognized selector sent to instance 0x170400960
2016-09-19 18:08:21.025 *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[CIContext initWithOptions:]: unrecognized selector sent to instance 0x170400960'
*** First throw call stack:
(0x186d8c2d8 0x1985b00e4 0x186d933a4 0x186d90154 0x186c92ccc 0x1001c1e74 0x1001c1b7c 0x1001c143c 0x1001c1cfc 0x100311e0c 0x1003116d0 0x1001d7690 0x101f3025c 0x101f2fc08 0x101eee29c 0x103db8fd4 0x103db8f94 0x103dbdc28 0x186d437f8 0x186d418a0 0x186c6d2d4 0x1904836fc 0x18b832fac 0x100401fd8 0x198c2ea08)
libc++abi.dylib: terminating with uncaught exception of type NSException

Answer 1

如果你看看崩溃报告,似乎Xcode 8在将Swift方法转换为CIContext(options: [String : Any]?)Objective-C对应方面存在一些问题+ (CIContext *)contextWithOptions:(NSDictionary<NSString *,id> *)options;.

相反,它被转换为-[CIContext initWithOptions:]无法识别的选择器.

一种可能的解决方法是声明一个Objective-C类别,如下所示:

@interface CIContext (Workaround)

+ (CIContext *)yourprefix_contextWithOptions:(NSDictionary<NSString *, id> *)options;

@end

@implementation CIContext (Workaround)

+ (CIContext *)yourprefix_contextWithOptions:(NSDictionary<NSString *, id> *)options {
    return [CIContext contextWithOptions:options];
}

@end

然后在模块桥接标头中导入此类别,并将原始CIContext init调用替换为此类别中的一个.

我想这是一个可以通过Xcode更新修复的编译问题.与此同时,这种解决方法可能会有所帮助.