IOS Uipagecontrol Simple Instance

IOS Uipagecontrol Simple Example

About automatic scrolling code to be replenished

The pictures in the instance are added by themselves

. h File Codes

#import <UIKit/UIKit.h> @interface viewcontroller:uiviewcontroller<uiscrollviewdelegate>{    Uiscrollview *_scrollview;    Nsmutablearray *slideimages;    Uipagecontrol *_page;} @end

. m file Codes

#import "ViewController.h" @interface Viewcontroller () @end @implementation viewcontroller-(ID) Initwithnibname: ( NSString *) Nibnameornil Bundle: (NSBundle *) nibbundleornil{self = [Super Initwithnibname:nibnameornil Bundle:nibbundle    Ornil]; if (self) {//Custom initialization} return to self;}        -(void) viewdidload{[Super Viewdidload];    _scrollview = [[Uiscrollview alloc]initwithframe:cgrectmake (0, 20, 320, 240)];    _scrollview.bounces = NO;    _scrollview.pagingenabled = YES;    _scrollview.delegate = self;    _scrollview.contentoffset = Cgpointmake (320, 0);    _scrollview.contentsize = Cgsizemake (1920,240);    _scrollview.showsverticalscrollindicator =no;    _scrollview.showshorizontalscrollindicator = NO;    _scrollview.userinteractionenabled = YES;        [Self.view Addsubview:_scrollview];    Slideimages = [[Nsmutablearray alloc]initwithobjects:@ "1.png", @ "2.png", @ "3.png", @ "4.png", nil];                     Uiimageview *imageview = [[Uiimageview alloc]         Initwithimage:[uiimage imagenamed:[slideimages objectatindex: ([Slideimages count]-1)]];    Imageview.frame = CGRectMake (0, 0, 320, 240);    [_scrollview Addsubview:imageview];                                   for (int i = 0;i<[slideimages count];i++) {//loop this bit uiimageview *imageview = [[Uiimageview alloc]        Initwithimage:[uiimage imagenamed:[slideimages Objectatindex:i]];        Imageview.frame = CGRectMake (320*i+320, 0, 320, 240);        imageview.userinteractionenabled = YES;    [_scrollview Addsubview:imageview];    } ImageView = [[Uiimageview alloc] initwithimage:[uiimage imagenamed:[slideimages objectatindex:0]];    Imageview.frame = CGRectMake (320*5, 0, 320, 240);    [_scrollview Addsubview:imageview];    _page = [[Uipagecontrol alloc]initwithframe:cgrectmake (240, 230, 70, 30)];    _page.numberofpages = 4;    _page.currentpage = 0;    _page.backgroundcolor = [Uicolor Graycolor]; [_page addtarget:self Action: @selector (Pageaction) forcontrolevents:uicontroleventtouchupinside];    [Self.view Addsubview:_page];    Do any additional setup after loading the view. }-(void) scrollviewdidenddecelerating: (Uiscrollview *) scrollview{int currentpage = (_scrollview.contentoffset.x-_SC    RollView.frame.size.width/([slideimages count]+2)/_scrollview.frame.size.width + 1;    NSLog (@ "%d", currentpage);    if (currentpage==0) {[_scrollview scrollrecttovisible:cgrectmake (320*4, 0, + +) Animated:no]; } else if (currentpage== ([slideimages count]+1)) {///If it is the last +1, that is, the first to start the loop [_scrollview Scrollrecttovisibl    E:cgrectmake (0, +) Animated:no];    }}-(void) Scrollviewdidscroll: (Uiscrollview *) sender{int page = _scrollview.contentoffset.x/320-1; _page.currentpage = page;}    -(void) pageaction{int page = _page.currentpage; [_scrollview Setcontentoffset:cgpointmake (page+1), 0)];} -(void) didreceivememorywarning{[Super didreceivememorywarning];    Dispose of any resources the can be recreated. } @end

IOS Uipagecontrol Simple Instance