從後臺加載url的大plist

Question

我從url加載大plist文件，我必須等待幾秒鐘才能使用應用程序。有一些解決方案嗎？它如何在後臺加載？ GCD我需要什麼？如何實施？

我的代碼：

NSString *urlStr = [[NSString alloc] 
        initWithFormat:@"http://www.domain.com/data.xml"]; 

NSURL *url = [NSURL URLWithString:urlStr]; 
NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfURL:url]; 

Answer 1

您可以創建一個新的線程，這樣做 請檢查以下

//Create the thread 
[NSThread detachNewThreadSelector:@selector(loadPList) toTarget:self withObject:nil]; 

- (void) loadPList 
{ 
    //Load the plist 
    NSString *urlStr = [[NSString alloc] 
         initWithFormat:@"http://www.domain.com/data.xml"]; 

    NSURL *url = [NSURL URLWithString:urlStr]; 
    NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfURL:url]; 

    //Update the ui 
    dispatch_async(dispatch_get_main_queue(), ^{ 
     //Update UI if you have to 
    }); 

}