Question

ios 怎么获取json数组里的字典

Answer 1

// 将字典或者数组转化为JSON串
+ (NSData *)toJSONData:(id)theData
{
NSError *error = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:theData options:NSJSONWritingPrettyPrinted error:nil];

if ([jsonData length]&&error== nil){
return jsonData;
}else{
return nil;
}
}
// 将JSON串转化为字典或者数组
+ (id)toArrayOrNSDictionary:(NSData *)jsonData{

NSError *error = nil;
id jsonObject = [NSJSONSerialization JSONObjectWithData:jsonData
options:NSJSONReadingAllowFragments
error:nil];

if (jsonObject != nil && error == nil){
return jsonObject;
}else{
// 解析错误
return nil;
}

}