NSLog( @"main thread begin..." );
[self performSelectorInBackground: @selector(getImages) withObject: nil];
NSLog( @"main thread end..." );
- (void)getImages
{
NSLog( @"one thread begin..." );
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSString *str_url = @"http://avatar.csdn.net/2/5/4/3_iorchid.jpg";
NSURL *url = [NSURL URLWithString: str_url];
NSData *data = [NSData dataWithContentsOfURL: url];
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageWithData: data]];
imageView.frame = CGRectMake(50, 200, 80, 40);
imageView.layer.cornerRadius = 6;
imageView.layer.masksToBounds = YES;
[self.window addSubview: imageView];
NSLog( @"one thread end..." );
[pool release];
}
刚开始写getImages函数的时候,提示autorelease pool …leak之类的错误,后来发现,其实子进程默认不建立autoreleasepool,还得手动建立才行.
log的打印顺序每次都 不太一样,这个可能跟系统执行有关.
