Use third-party class libraries for carousel images and iOS class libraries for ios development

Use third-party class libraries for carousel images and iOS class libraries for ios development

There are many third-party class libraries on github, which greatly saves everyone's development time.

: Https://github.com/gsdios/SDCycleScrollView

Cocoapods import: pod 'sdcyclescrollview', '~> 1.61'

 

Effect

 

 

Specific implementation code

# Import "ViewController. h "# import" SDCycleScrollView. h "@ interface ViewController () <SDCycleScrollViewDelegate> @ end @ implementation ViewController-(void) viewDidLoad {[super viewDidLoad]; self. view. backgroundColor = [UIColor colorWithRed: 0.98 green: 0.98 blue: 0.98 alpha: 0.99]; UIImageView * backgroundView = [[UIImageView alloc] initWithImage: [UIImage imageNamed: @ "005.jpg"]; backgroundView. frame = self. view. bounds; [self. view addSubview: backgroundView]; UIScrollView * demoContainerView = [[UIScrollView alloc] initWithFrame: self. view. frame]; demoContainerView. contentSize = CGSizeMake (self. view. frame. size. width (1200); [self. view addSubview: demoContainerView]; self. title = @ "Carousel Demo"; // scenario 1: NSArray * imageNames = @ [@ "h1.jpg", @ "h2.jpg", @ "h3.jpg ", @ "h4.jpg", @ "h7" // enter the full name of the local image]; // Scenario 2: NSArray * imagesURLStrings = @ [@ "https://ss2.baidu.com/-vo3dSag_xI4khGko9WTAnF6hhy/super/whfpf%3D425%2C260%2C50/sign=a4b3d7085dee3d6d2293d48b252b5910/0e2442a7d933c89524cd5cd4d51373f0830200ea.jpg ", @ "https://ss0.baidu.com/-Po3dSag_xI4khGko9WTAnF6hhy/super/whfpf%3D425%2C260%2C50/sign=a41eb338dd33c895a62bcb3bb72e47c2/5fdf8db1cb134954a2192ccb524e9258d1094a1e.jpg", @ "http://c.hiphotos.baidu.com/image/w%3D400/sign=c2318ff84334970a4773112fa5c8d1c0/b7fd5266d0160924c1fae5ccd60735fae7cd340d.jpg"]; // Scene 3: picture with text NSArray * titles = @ [@ "New Communication QQ group: 185534916 ", @ "thanks for your support, if you download", @ "if the Code has problems in use", @ "you can mail to the gsdios@126.com"]; CGFloat w = self. view. bounds. size. width; // >>>>>>>>>>>>>>>>>>>>>>>>> demo carousel Diagram 1 >>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> // load locally --- create an image carousel without a title, SDCycleScrollView * cycleScrollView = [SDCycleScrollView cycleScrollViewWithFrame: CGRectMake (0, 64, w, 180) shouldInfiniteLoop: YES imageNamesGroup: imageNames]; cycleScrollView. delegate = self; cycleScrollView. pageControlStyle = SDCycleScrollViewPageContolStyleAnimated; [demoContainerView addSubview: cycleScrollView]; // --- carousel interval. The default value is 1.0 seconds. You can customize it. // cycleScrollView. autoscrolltimeinteger = 4.0; // >>>>>>>>>>>>>>>>>>>>>>>>> demo carousel Image 2 >>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>/// network load --- create a title image carousel SDCycleScrollView * cycleScrollView2 = [SDCycleScrollView cycleScrollViewWithFrame: CGRectMake (0,280, w, 180) delegate: self placeholderImage: [UIImage imageNamed: @ "placeholder"]; dependencies = dependencies; cycleScrollView2.titlesGroup = titles; tags = [UIColor whiteColor]; // custom page control circle color [demoContainerView addSubview: cycleScrollView2]; // --- simulate loading delay dispatch_after (dispatch_time (interval, (int64_t) (0.3 * NSEC_PER_SEC )), dispatch_get_main_queue (), ^ {token = imagesURLStrings;});/* cycleScrollView2.clickItemOperationBlock = ^ (NSInteger index) {NSLog (@ ">>>>% ld ", (long) index );}; * // >>>>>>>>>>>>>>>>>>>>>>>>> demo carousel diagram 3 >>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> // network load --- create the pageControlDot image carousel SDCycleScrollView for the custom image * cycleScrollView3 = [SDCycleScrollView cycleScrollViewWithFrame: CGRectMake (0,500, w, 180) delegate: self placeholderImage: [UIImage imageNamed: @ "placeholder"]; Parameters = [UIImage imageNamed: @ "pageControlCurrentDot"]; watermark = [UIImage imageNamed: @ "pageControlDot"]; Progress = watermark; [demoContainerView addSubview: cycleScrollView3];} # pragma mark-exclude-(void) cycleScrollView :( SDCycleScrollView *) cycleScrollView didSelectItemAtIndex :( NSInteger) index {NSLog (@ "--- click the % ld image", (long) index); [self. navigationController pushViewController: [NSClassFromString (@ "DemoVCWithXib") new] animated: YES];}/* // scroll to the desired image callback-(void) cycleScrollView (SDCycleScrollView *) cycleScrollView didScrollToIndex :( NSInteger) index {NSLog (@ ">>>>>> scroll to the % ld graph", (long) index);} */@ end