0
我正在使用导航基础应用程序。当我进入下一个视图或回到前一个视图时,线程不会停止。在视图之间切换时,有人能给我一个停止线程的解决方案吗?当我切换到下一个或上一个时,应用程序崩溃。我使用线程这样下载的图像NSThread停止进程
- (void)viewWillAppear:(BOOL)animated {
AppDeleget= [[UIApplication sharedApplication] delegate];
ProcessView *Process=[[ProcessView alloc] init];
[Process SearchProperty:AppDeleget.PropertyURL page:AppDeleget.Page];
[Process release];
for(NSDictionary *status in AppDeleget.statuses)
{
NSMutableString *pic_string = [[NSMutableString alloc] initWithFormat:@"%@",[status objectForKey:@"picture"]];
if([pic_string isEqualToString:@""])
{
[ListPhotos addObject:@"NA"];
}
else
{
NSString *str= [[[status objectForKey:@"picture"] valueForKey:@"url"] objectAtIndex:0];
[ListPhotos addObject:str];
}
}
[NSThread detachNewThreadSelector:@selector(LoadImage) toTarget:self withObject:nil];
[AppDeleget.MyProgressView stopAnimating];
[AppDeleget.Progress removeFromSuperview];
[super viewWillAppear:animated];
}
-(void)LoadImage
{
for(int x=0;x<[ListPhotos count];x++)
{
NSData *imageData =[ListPhotos objectAtIndex:x];
id path = imageData;
NSURL *url = [NSURL URLWithString:path];
NSLog(@"%@",url);
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *img = [[UIImage alloc] initWithData:data];
[self performSelectorOnMainThread:@selector(downloadDone:) withObject:img waitUntilDone:NO];
}
}
-(void)downloadDone:(UIImage*)img {
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:count inSection:0];
if(img == nil)
{
TableCell *cell = (TableCell *)[TableView cellForRowAtIndexPath:indexPath];
cell.myImageView.image=[UIImage imageNamed:@"No_image.png"];
++count;
[TableView reloadData];
}
else
{
TableCell *cell = (TableCell *)[TableView cellForRowAtIndexPath:indexPath];
cell.myImageView.image=img;
++count;
[TableView reloadData];
}
}
但当我使用[NSThread退出],但它不起作用 – user763657 2011-05-26 05:13:47
你的意思是控制不会出现loadImage功能? – 2011-05-26 06:45:14
当时使用此模拟器挂起 – user763657 2011-05-26 09:24:55