iOS Development-Project new features

Practical tips for iOS development-handling of new project features pages

Practical tips for iOS development-handling of new project features pages

Description: This article mainly describes the most simple new feature interface (practical Uiscrollview to display multiple pictures of the carousel) in the project development.

code example:

Create a new special interface to deal with the controller, can be practical code can also be used xib, here practical pure code way, creating a controller Newfeatureviewcontroller.

Header File Code:

1//2//JMNewfeatureViewController.h3//45#import <UIKit/UIKit.h>67 typedefEnum: Nsinteger{ 9 newfeaturetypefromesetting, // go to the page from the Setup interface 10 newfeaturetypefromewelcom, // Enter 11 } Newfeaturetype; 12 13  @interface  Jmnewfeatureviewcontroller:uiviewcontroller14 15 Span style= "color: #000000;" > @property (nonatomic,assign) Newfeaturetype Newfeaturetype; 16 17  @end   

. m file Code:

1//2//Jmnewfeatureviewcontroller.m3//45#import"JMNewfeatureViewController.h"6#import"JMTabBarViewController.h"7#import"JMAboutTableViewController.h"89#define JMNEWFEATUREIMAGECOUNT 41011@interface Jmnewfeatureviewcontroller () <UIScrollViewDelegate>12@property (nonatomic, weak) Uipagecontrol *Pagecontrol;141516-(void) Setupscrollview;17-(void) Setuppagecontrol;18-(void) Setuplastimageview: (Uiimageview *) ImageView;19-(void) Setupstartbutton: (Uiimageview *) ImageView;2021st@end2223@implementationJmnewfeatureviewcontroller2425#pragma Mark---------------------26#pragma mark-cyclife2728-(void) Viewdidload29{30[Super Viewdidload];31[UIApplication Sharedapplication].statusbarhidden =YES;33[Self setupscrollview];//Add Uisrollview[Self Setuppagecontrol];//Add Pagecontrol36}3738#pragma Mark---------------------39#pragma mark-methods4041//Add Uisrollview42-(void) Setupscrollview43{44//Add UisrollviewUiscrollview *scrollview =[[Uiscrollview alloc] init];Scrollview.frame =Self.view.bounds;Scrollview.bounces =NO;ScrollView.Delegate =Self49[Self.view Addsubview:scrollview];5051//Add a pictureCGFloat Imagew =Scrollview.width;CGFloat Imageh =Scrollview.height;54for (int i =0; i<jmnewfeatureimagecount; i++) {55//Create UiimageviewUiimageview *imageview =[[Uiimageview alloc] init];NSString *name = [NSString stringWithFormat:@"Banner%d.jpg", I +1];Imageview.image =[UIImage Imagenamed:name];59[ScrollView Addsubview:imageview];6061//Set frameIMAGEVIEW.Y =0;Imageview.width =Imagew;Imageview.height =Imageh;imageview.x = i *Imagew;6667//Add a button to the last ImageView68if (i = = Jmnewfeatureimagecount-1) {69[Self setuplastimageview:imageview];70}71}7273//3. Set other propertiesScrollview.contentsize = Cgsizemake (Jmnewfeatureimagecount * Imagew,0);scrollview.pagingenabled =YES;Scrollview.showshorizontalscrollindicator =NO;Scrollview.backgroundcolor = Yycolor (246,246,246);78}7980//Add Pagecontrol81-(void) Setuppagecontrol82{83//Add PagecontrolUipagecontrol *pagecontrol =[[Uipagecontrol alloc] init];Pagecontrol.numberofpages =Jmnewfeatureimagecount;Pagecontrol.centerx = Self.view.width *0.5; Pagecontrol.centery = self.view.height-20; [Self.view Addsubview:pagecontrol]; 89 90//Set the color of the dots Self.pagecontrol = Pagecontrol; [Self ChangePageControlImage:self.pageControl]; 93} 94 95 96//set content in last Uiimageview-(void) Setuplastimageview: (Uiimageview *) ImageView 98 {Imageview.userinterac tionenabled = yes;100 101//Add Start button 102 [self setupstartbutton:imageview];103}104 105//Add Start button 106-(void) Setupstartbutton :(Uiimageview *) imageView107 {108//1. Add Start button 109 UIButton *startbutton = [[UIButton alloc] init];110 Imageview.userintera ctionenabled = yes;111 [ImageView addsubview:startbutton];112 113//2. Set background image [Startbutton setbackgroundimage:[ UIImage imagenamed:@ "Banner_button_moren.jpg"] forstate:uicontrolstatenormal];115 [Startbutton setBackgroundImage: [UIImage imagenamed:@ "Banner_button_dianji.jpg"] forstate:uicontrolstatehighlighted];116 117//3. Setting frame118 Startbutton.size = startbutton.currentbackgroundimage.size;119 Startbutton.centerx = self.view.width *0.5;120 startbutton.centery = self.view.height * 0.8;121 122//4. Set Text 123 [Startbutton settitle:@ "Experience Now" Forstate:uicontro lstatenormal];124 [Startbutton settitle:@ "" forstate:uicontrolstatehighlighted];125 [StartButton addTarget:self Action: @selector (start) forcontrolevents:uicontroleventtouchupinside];126}127 128 129//Change the dot style in Pagecontrol 130-( void) Changepagecontrolimage: (Uipagecontrol *) pageControl131 {static UIImage *imgcurrent = nil;133 static UIImage * Imgother = nil;134 static dispatch_once_t oncetoken;135 136 dispatch_once (&oncetoken, ^{137 imgCurrent = [UIImage imag enamed:@ "yuan_01"];138 imgother = [UIImage imagenamed:@ "Yuan1"];139}); 141 142 if (KSYSTEMVERSIONMORETHAN7) {143 [Pag] Econtrol setvalue:imgcurrent forkey:@ "_currentpageimage"];144 [Pagecontrol setvalue:imgother forKey:@ "_pageImage"]; 145} else {146 for (int i = 0;i < pagecontrol.numberofpages; i++) {147 Uiimageview *IMGV = [Pagecontrol.subviews objec tatindex:i];148 imgv.frame = CGRectMake (imgv.frame.origIn.x, IMGV.FRAME.ORIGIN.Y, 149 imgv.image = Pagecontrol.currentpage = = I? imgcurrent:imgother;150}151}152}153 154 #pragma mark---------------------155 #pragma mark-events156 157//Experience now 158 -(void) start159 {uiapplication Sharedapplication].statusbarhidden = no;161 162//Judgment Type 163 if (Self.newfeaturetype = = newfeaturetypefromewelcom) {164 Jmtabbarviewcontroller *TABVC = [[Jmtabbarviewcontroller alloc]init];165//Switch Controller 166 UIWindow *window = [uiapplication sharedapplication].keywindow;167 window.rootviewcontroller = tabVC;168}else 169 {170 1 [Self.navigationcontroller popviewcontrolleranimated:yes];172 [Self.navigationcontroller SetNavigationBarHidden : NO animated:no];173}174 175}176 177 #pragma mark-uiscrollviewdelegate178-(void) Scrollviewdidscroll: (UIScrollView *) scrollView179 {180//Get page number 181 cgfloat doublepage = scrollview.contentoffset.x/scrollview.width;182 int intpage = (int) (d Oublepage + 0.5); 183 184//Set page number 185 Self.pageControl.currentPage = intpage;186 [Self changepagecontrolimage:self.pagecontrol];187}188 189 @end 

Note the point:

The following method provides Pagecontrol with the current state and picture settings in the default state.

1//Change the dot style in Pagecontrol2-(void) Changepagecontrolimage: (Uipagecontrol *) Pagecontrol3{4static UIImage *imgcurrent =Nil5static UIImage *imgother =Nil6Staticdispatch_once_t Oncetoken;78 Dispatch_once (&oncetoken, ^{9 imgcurrent = [UIImage imagenamed:@"Yuan_01"];Ten imgother = [UIImage imagenamed:@"Yuan1"];11});121314If(KSYSTEMVERSIONMORETHAN7) {[Pagecontrol setvalue:imgcurrent Forkey:@"_currentpageimage"];[Pagecontrol setvalue:imgother Forkey:@"_pageimage"];17}Else {18 for (int i = 0;i < pagecontrol.numberofpages; I++) {19 uiimageview *imgv = [pagecontrol.subviews objectatindex:i];20 imgv.frame = CGRectMake (imgv.frame.origin.x, IMGV.FRAME.ORIGIN.Y, 20, 20); 21 imgv.image = Pagecontrol.currentpage = = I?  Imgcurrent:imgother; 22 }23 }24}            

In this case, the business logic of the new feature section is very simple and can be applied directly.

The effect of replacing pagecontrol with a practical picture is as follows:

　　

iOS Development-Project new features