码农天后的博客

NSIndexPath *indexPath = [NSIndexPath indexPathWithIndex:2]; [self.collectionView scrollToItemAtIndexPath:path atScrollPosition:(UICollectionViewScrollPositionCenteredHorizontally) animated:NO];

[!] The following Swift pods cannot yet be integrated as static libraries:The Swift pod `Moya` depends upon `RxAtomic`, which do not define modules. To opt into those targets generating module ma...

只需要在你的项目中把estimatedHeightForRowAtIndexPath方法写实现以下,返回一个估计高度(随便估,建议还是按照正常思路来写,大概高度是多少就返回多少),这样就不会报EXC_BAD_ACCESS错误了.注意:estimatedHeightForRowAtIndexPath方法既是下面这个方法.- (CGFloat)tableView:(UITableView *...

初始化方法：initWithFrame：-----------设置表的大小和位置initWithFrame：style---------设置表的大小，位置和样式（style : Grouped/Plain)dataSource ---设置UITableViewDataSource的代理delegate ---设置UItableViewDelegate的代理sectionHead...

依博客的css为例(https://csdnimg.cn/release/phoenix/template/css/ck_htmledit_views-e4c7a3727d.css)创建webVIew- (UIWebView *)webView{ if (!_ webView) { _ webView = [UIWebView new]; ...

pod 导入pod 'SVGKit'pod 'CocoaLumberjack' 创建UIImage的分类.h 文件中/**@param name svg name  xxx.svg@param size image size@return svg image*/+(UIImage *)svgImgNamed:(NSString *)name siz...

- (void)qrScan:(UIImage *)image{    CIImage *ciImage = [[CIImage alloc] initWithCGImage:image.CGImage options:nil];    CIContext *context = [CIContext contextWithOptions:@{kCIContextUseSoftwareRen...

//name 创建相册的名字+(void)createAssetCollectionName:(NSString *)name{    [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{        // 调用判断是否已有该名称相册        PHAssetCollection *assetCollection = [...

+ (void)getAssetWithImage:(UIImage *)image getAssetSuccess:(void(^)(PHAsset *asset))getSuccess{    __block NSString *assetId = nil;       [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{  ...

1.创建一个FakeGPS工程2.command +n 创建一个GPX File的location.pgx文件3.product -->Scheme --> edit scheme -->options --->default location 4.选中location5.修改你想要的经纬度即可...

思路:controller里面就只应该存放这些不能复用的代码,这些代码1.初始化时,构造相应的view和model.2.监听model层的事件,将model层的数据传递到view.3.监听view层的事件,并且将view层的事件转发到model成.controller只有以上这些代码它的逻辑就非常简单了,而且非常短.controller进一步的解决方案但是，我们却很难做到这一点，因为还是有很多逻辑...

拖到工程里的图片或文件获取不到 查看是否勾选  不选是读不到文件的 或者把图片放在这里边吧,不管是.jpg还是.png的都可以想要了解更多请关注公众号

UIView *view = [[UIView alloc]initWithFrame:CGRectMake(10, 300, 300, 40)]; view.backgroundColor = [UIColor whiteColor]; [self.view addSubview:view]; UILabel *label = [[UILabel al

#define SCREENW  [UIScreen mainScreen].bounds.size.width#define SCREENH   [UIScreen mainScreen].bounds.size.height#define XY SCREENW/414 self.timeLB = [[UILabel alloc]initWithFrame:CGRectMake(-50,-20,

/存储  dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{            NSString *ad_voice =@"http://fdfs.xmcdn.com/group11/M00/AD/5F/wKgDa1ZfFi-gRNYMABuxsyS4ea4688.mp

healp.h#import @interface Healp : NSObjecttypedef void(^filePath)(NSString *data);+(void)downLoadUrlString:(NSString *)urlStr returnStr:(filePath)str;@endhealp.m#import "Healp.h"

- (void)viewDidLoad {    [superviewDidLoad]; UIView *view1 = [[UIViewalloc]init];    [self.viewaddSubview:view1];    view1.frame = CGRectMake(100, 400, 100, 100) ;    view1

//一般大家都会这样设置 你会发现投影效果并没有呈现出来    UIView *samall = [[UIViewalloc]initWithFrame:CGRectMake(100,350, 100,100)];    samall.backgroundColor = [UIColorredColor];    samall.layer.cornerRad

UIAlertController *alertController=[UIAlertController alertControllerWithTitle:title message:message preferredStyle:preferredStyle];   //设置行间距 NSMutableParagraphStyle *paragraphStyle = [[NSMutabl