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+(void)load
{
staticdispatch_once_tonce_token;
dispatch_once(&once_token, ^{
[objc_getClass("__NSDictionaryM")MethodExchangeWithOriginMethod:@selector(objectForKey:)andSwizzlingMethod:@selector(sw_objectForKey:)andIsInstanceMethod:YES];
[objc_getClass("__NSDictionaryM")MethodExchangeWithOriginMethod:@selector(removeObjectForKey:)andSwizzlingMethod:@selector(sw_removeObjectForKey:)andIsInstanceMethod:YES];
[objc_getClass("__NSDictionaryM")MethodExchangeWithOriginMethod:@selector(setObject:forKey:)andSwizzlingMethod:@selector(sw_setObject:forKey:)andIsInstanceMethod:YES];
});
}
- (id)sw_objectForKey:(id)aKey
{
if(aKey ==nil) {
returnnil;
}
return[selfsw_objectForKey:aKey];
}
- (void)sw_removeObjectForKey:(id)aKey
{
if(aKey ==nil) {
return;
}
[selfsw_removeObjectForKey:aKey];
}
- (void)sw_setObject:(id)anObject forKey:(id)aKey
{
if(anObject ==nil|| aKey ==nil) {
return;
}
[selfsw_setObject:anObjectforKey:aKey];
}
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