这是我正在使用的方法
+(dataHandler *)getDataHandler
{
dispatch_once(&internalOnceToken,^{
internalInstance = [[dataHandler alloc] init];
if(internalInstance) {
NSLog(@"Internal instance created: %@", internalInstance);
}
});
if(internalOnceToken == -1)
{
NSLog(@"Internal instance exists: %@", internalInstance);
}
return internalInstance;
}
我尝试使用dispatch_asyn但不是静态分配,在主屏幕上,我可以访问所有数据并存储在我的singleton类中。
但是,当我尝试从一个视图控制器转到主屏幕时,它挂了几秒钟,该如何解决呢?
调用Singleton方法:
-(void)responseFunction:(NSMutableDictionary *)response
{
BOOL sucess;
sucess =[[response objectForKey:@"sucess"]boolValue];
NSLog(@"response Method%@",response);
NSString *subimages;
if(!sucess)
{
//storing response data to singleton class.
}
[self datahandlers];//here i am calling singleton.
}
存储后,我在视图中调用单例类加载方法
if([file.dicCategoryDetails count]!=0&&[file.dicProductDetails count]!=0)
{
[self datahandlers];
}
这是数据处理程序方法
-(void)datahandlers
{
for(NSDictionary *diccategory in file.categoryArr)
{
NSMutableDictionary *dicparsing=[[NSMutableDictionary alloc]init];
[dicparsing setObject:[diccategory objectForKey:@"category"] forKey:@"category"];
[dicparsing setObject:[diccategory objectForKey:@"name"] forKey:@"name"];
[dicparsing setObject:[diccategory objectForKey:@"image"] forKey:@"image"];
[dicparsing setObject:[diccategory objectForKey:@"subcategory"] forKey:@"subcategory"];
[ArrName addObject:dicparsing];
}
NSLog(@"inside data handler%@",ArrName);
[collectionview reloadData];
[self scrollView];
}
鉴于负载
file= [dataHandler getDataHandler];
最佳答案
最后,我只是使用dispatch_async(dispatch_get_main_queue(),^ {})完成了此操作
if([file.dicCategoryDetails count]!=0&&[file.dicProductDetails count]!=0)
{
dispatch_async(dispatch_get_main_queue(), ^{
[self datahandlers];
});
}
关于ios - 访问单例类(class)时 View 卡住了几秒钟,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/32524425/