2019年2月27日:
修复bug:
查找资料:
解决方式:添加分类,对系统方法替换,做非空校验
#import "UNUserNotificationCenter+Hack.h"
#import <objc/runtime.h>
@implementation UNUserNotificationCenter (Hack)
+ (void)load {
static dispatch_once_t _onceToken;
dispatch_once(&_onceToken, ^{
[self safeHook];
});
}
+ (void)safeHook {
/*hook UNUserNotificationCenter's systemMethod - (id)initWithBundleProxy:(id)arg1;*/
NSString * orig_initWithBundleProxyName = @"initWithBundleProxy:";
SEL orig_initWithBundleSelector = NSSelectorFromString(orig_initWithBundleProxyName);
if (![self instancesRespondToSelector:orig_initWithBundleSelector]) {
return;
}
SEL alt_initWithBundleSelector = @selector(hk_initWithBundleProxy:);
Method origMethod = class_getInstanceMethod(self, orig_initWithBundleSelector);
Method altMethod = class_getInstanceMethod(self, @selector(hk_initWithBundleProxy:));
class_addMethod(self,
orig_initWithBundleSelector,
class_getMethodImplementation(self, orig_initWithBundleSelector),
method_getTypeEncoding(origMethod));
class_addMethod(self,
alt_initWithBundleSelector,
class_getMethodImplementation(self, alt_initWithBundleSelector),
method_getTypeEncoding(altMethod));
method_exchangeImplementations(origMethod, altMethod);
}
- (instancetype)hk_initWithBundleProxy:(id)arg1 {
if (nil==arg1||NSNull.null==arg1) return nil;
// return [self hk_initWithBundleProxy:nil]; //crash
return [self hk_initWithBundleProxy:arg1];
}
@end