IOS开发的一些小技巧
将图片写入模拟器相册
UIImageWriteToSavedPhotosAlbum([UIImage imageNamed:@"call"], nil, nil, nil);
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UIView* uiViewBuildingAddress=[[UIViewalloc]initWithFrame:self.view.frame];
uiViewBuildingAddress.backgroundColor=[UIColorblackColor];
//父视图不影响子视图背景色
uiViewBuildingAddress.backgroundColor=[UIColorcolorWithWhite:0
alpha:0.6];
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#pragma mark - 获取view从属的viewController
- (UIViewController*)getViewController
{
for (UIView* next = [selfsuperview]; next; next = next.superview)
{
UIResponder* nextResponder = [next nextResponder];
if ([nextResponderisKindOfClass:[UIViewControllerclass]])
{
return (UIViewController*)nextResponder;
}
}
return nil;
}
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避免Block的Retain Cycle
NSURL* nsUrlBindIngHouse=[NSURLURLWithString:[NSStringstringWithFormat:@"%@%@",WEBSERVICE_URL,PersonalCenter_BindIngHouse_HouseList]];
__block ASIHTTPRequest* asiHTTPRequestBindIngHouse=[ASIHTTPRequestrequestWithURL:nsUrlBindIngHouse];
__weak ASIHTTPRequest* asiHTTPRequestBindIngHouse2=asiHTTPRequestBindIngHouse;
[asiHTTPRequestBindIngHouse2 setCompletionBlock:^
{
}];
[asiHTTPRequestBindIngHouse2 setFailedBlock:^
{
NSLog(@"asiHTTPRequestBindIngHouse2.error:%@",asiHTTPRequestBindIngHouse2.error);
}];
[asiHTTPRequestBindIngHouse2 startAsynchronous];
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