无法下载图片 App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file
刚学线程通信,提示:
2016-01-27 11:11:02.246 20-9 gcd3 communicationOfThread[5193:298643] App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.
原来是因为 iOS9之后,原http协议被改成了https协议,使用 TLS1.2 SSL加密请求数据。
在info.plist中添加
<key>NSAppTransportSecurity</key><dict>
<key>NSAllowsArbitraryLoads</key>
<true/></dict>
即可
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_async(queue, ^{
NSLog(@"url:%@",[NSThread currentThread]);
NSURL *url = [NSURL URLWithString:@"http://www.cechina.cn/upload/article/adc81d83-4603-4e1c-a116-9325e89cd309/s1.jpg"];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *image = [UIImage imageWithData:data];
NSLog(@"url:%@,image:%@",[NSThread currentThread],image);
dispatch_async(dispatch_get_main_queue(), ^{
NSLog(@"downLoad:%@,image:%@",[NSThread currentThread],image);
[self.btn setBackgroundImage:image forState:UIControlStateNormal];
});
});
}