IOS One method first install rolling diagram Show app Introduction

The first time the installation will have a guide page to display the first time directly into the application page

if ([[[[Nsuserdefaults Standarduserdefaults] objectforkey:@ "Isone"] isequal:@ "Isone"]) {

[Self showviewcontroller];

}else{

Rootviewcontroller *root= [[Rootviewcontroller alloc] init];

Self.window.rootViewController = root;

[Self isfirstinstall];

}

Write the method directly in the Appdelegate class

-(void) isfirstinstall{

Guide page

Uiscrollview *SC = [[Uiscrollview alloc]initwithframe:self.window.bounds];

sc.pagingenabled = YES;

Sc.delegate = self;

Sc.showshorizontalscrollindicator = NO;

Sc.showsverticalscrollindicator = NO;

[Self.window.rootViewController.view ADDSUBVIEW:SC];

Nsarray *arr = @[@ "Boot page 1.jpg" @ "boot page 2.jpg" @ "boot page 3.jpg"];

for (Nsinteger i = 0; i<arr.count; i++)

{

Uiimageview *img = [[Uiimageview alloc]initwithframe:cgrectmake (screen_width*i, 0, Screen_width, Self.window.frame.size.height)];

Img.image = [UIImage imagenamed:arr[i]];

[SC addsubview:img];

img.userinteractionenabled = YES;

if (i = = arr.count-1)

{

Set the last Page Experience button based on the requirements in your project

UIButton *btn = [UIButton buttonwithtype:uibuttontyperoundedrect];

Btn.frame = CGRectMake ((SELF.WINDOW.FRAME.SIZE.WIDTH/2) -100, screen_height-110, 200, 50);

Btn.backgroundcolor = [Uicolor Greencolor];

[Btn settitle:@ "Start experience" forstate:uicontrolstatenormal];

[Btn addtarget:self Action: @selector (Goroot) forcontrolevents:uicontroleventtouchupinside];

[img ADDSUBVIEW:BTN];

[btn Settitlecolor:[uicolor Whitecolor] forstate:uicontrolstatenormal];

Btn.layer.borderWidth = 1;

Btn.layer.borderColor = [Uicolor Greencolor]. Cgcolor;

}

}

Sc.contentsize = Cgsizemake (Screen_width*arr.count, self.window.frame.size.height);

}

How to do it now

-(void) goroot{

Nsuserdefaults *user = [Nsuserdefaults standarduserdefaults];

[User setobject:@ "Isone" forkey:@ "Isone"];

[User Synchronize];

Set the root controller in the project here

Self.window.rootviewController = Viewcontroller;

}

The ScrollView proxy method Settings Guide page in the project

-(void) Scrollviewdidscroll: (Uiscrollview *) ScrollView

{

Screen_width 4 is the number of guide pages, x offset is greater than 4 screen more than 30, can also enter the application, similar to the immediate experience in the functional method. Add based on requirements in your project

if (Scrollview.contentoffset.x>screen_width *4+30)

{

[Self goroot];

}

}

is so easy, guide diagram set up, mutual encouragement

IOS One method first install rolling diagram Show app Introduction