一个简单网易新闻页面的实现

本文参考了其它博文教程

//

// ViewController.m

// example

//

// Created by jose on 15-3-8.

// Copyright (c) 2015年 jose. All rights reserved.

//

#import "ViewController.h"

@interface ViewController ()

//采用全局变量

@property(nonatomic,retain)UIView *lineview;

@property(nonatomic,retain)UIScrollView *scrollview;

@property(nonatomic,retain)UIPageControl *pagecontrol;

@property CGFloat width;

@property CGFloat heigt;

@end

@implementation ViewController

@synthesize lineview=_lineview;

@synthesize scrollview=_scrollview;

@synthesize pagecontrol=_pagecontrol;

@synthesize width=_width;

@synthesize heigt=_heigt;

- (void)viewDidLoad {

[super viewDidLoad];

//设置背景颜色

self.view.backgroundColor=[UIColor whiteColor];

//获取屏幕的宽和高

_width=[UIScreen mainScreen].bounds.size.width;

_heigt=[UIScreen mainScreen].bounds.size.height;

//加载视图

[self sethead];

[self setscrollerview];

[self setimgagescrollerviews];

[self pagecontrollers];

[self addlabel];

[self labelbutton];

//定时器

[NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(cycleplay) userInfo:nil repeats:YES];

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

//设置head

-(void)sethead{

UIView *headview=[[UIView alloc]initWithFrame:CGRectMake(0, 0, _width, 60)];

headview.backgroundColor=[UIColor redColor];

[self.view addSubview:headview];

UILabel *label=[[UILabel alloc]initWithFrame:CGRectMake((_width/2-40), 15, 80, 30)];

label.text=@"网易新闻";

label.textColor=[UIColor blackColor];

label.font=[UIFont systemFontOfSize:18];

[headview addSubview:label];

}

-(void)setscrollerview{

//创建scroller的大小，在视图中显示的大小

UIScrollView *scroller=[[UIScrollView alloc]initWithFrame:CGRectMake(0, 60, _width, 30)];

//配置scroller的总大小

scroller.contentSize=CGSizeMake(_width, 30);

//垂直提示

scroller.showsVerticalScrollIndicator=NO;

scroller.backgroundColor=[UIColor grayColor];

[self.view addSubview:scroller];

NSMutableArray *scrollerarray=[NSMutableArray arrayWithObjects:@"科技",@"数码",@"军事",@"笑话",@"财经",@"娱乐",nil];

//添加按钮

for (int i=0; i<[scrollerarray count]; i++) {

UIButton *button=[[UIButton alloc]initWithFrame:CGRectMake(50*i,0, 50, 30)];

[button setTitle:scrollerarray[i] forState:UIControlStateNormal];

button.tag=100+i;

[button addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];

[scroller addSubview:button];

}

_lineview=[[UIView alloc]initWithFrame:CGRectMake(0, 27, 50, 3)];

_lineview.backgroundColor=[UIColor blackColor];

//下划线

[scroller addSubview:_lineview];

}

//下划线

-(void)click:(UIButton *)button{

//通过tag获取对应按钮的属性

_lineview.frame=CGRectMake(button.frame.origin.x, 27, 50, 3);

}

//添加imgagescroll

-(void)setimgagescrollerviews{

_scrollview=[[UIScrollView alloc]initWithFrame:CGRectMake(0, 90, _width, 240)];

_scrollview.contentSize=CGSizeMake(_width*5, 240);

//偏移量

_scrollview.contentOffset=CGPointMake(320, 0);

//添加图片视图

for (int i=0; i<5; i++){

UIImageView *imageview=[[UIImageView alloc]initWithFrame:CGRectMake(_width*i, 0, _width, 240)];

if(0==i)

{ //获取图片

imageview.image=[UIImage imageWithContentsOfFile:[[NSBundle mainBundle]pathForResource:[NSString stringWithFormat:@"3"] ofType:@"jpg"]];

}

if(i>=1 && i<=3)

{

imageview.image=[UIImage imageWithContentsOfFile:[[NSBundle mainBundle]pathForResource:[NSString stringWithFormat:@"%d",i] ofType:@"jpg"]];

}

if(4==i)

{

imageview.image=[UIImage imageWithContentsOfFile:[[NSBundle mainBundle]pathForResource:[NSString stringWithFormat:@"1"] ofType:@"jpg"]];

}

[_scrollview addSubview:imageview];

}

_scrollview.showsHorizontalScrollIndicator=NO;

_scrollview.showsVerticalScrollIndicator=NO;

_scrollview.delegate=self;

//设置分页

_scrollview.pagingEnabled=YES;

_scrollview.tag=150;

[self.view addSubview:_scrollview];

}

//添加pagecontrol

-(void)pagecontrollers{

_pagecontrol=[[UIPageControl alloc]initWithFrame:CGRectMake(120, 280, 80, 30)];

//页数

_pagecontrol.numberOfPages=3;

//当前点的颜色

_pagecontrol.currentPageIndicatorTintColor=[UIColor orangeColor];

//没有选中的时候点的颜色

_pagecontrol.pageIndicatorTintColor=[UIColor blackColor];

_pagecontrol.tag=160;

[_pagecontrol addTarget:self action:@selector(handpage:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:_pagecontrol];

}

//点击事件

-(void)handpage:(UIPageControl *)pagecontrol{

//获取scrollview

UIScrollView *scrollview=(UIScrollView *)[self.view viewWithTag:150];

[scrollview setContentOffset:CGPointMake(_width*(pagecontrol.currentPage+1), 0)animated:YES];

}

//代理

-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{

UIPageControl *pagecontrol=(UIPageControl *)[self.view viewWithTag:160];

pagecontrol.currentPage=(scrollView.contentOffset.x-_width)/_width;

int i=(scrollView.contentOffset.x-_width)/_width+1;

if(0==i)

{

scrollView.contentOffset=CGPointMake(_width*3, 0);

pagecontrol.currentPage=2;

}

else if(4==i)

{

scrollView.contentOffset=CGPointMake(_width, 0);

pagecontrol.currentPage=0;

}

}

//循环播放

-(void)cycleplay{

NSInteger current=_pagecontrol.currentPage;

current++;

if(current>2)

{

current=0;

}

_pagecontrol.currentPage=current;

[self handpage:_pagecontrol];

}

//添加标签属性

-(void)addlabel{

UIView *label=[[UIView alloc]initWithFrame:CGRectMake(0, 330, 320, 60)];

label.backgroundColor=[UIColor colorWithRed:255/225.0 green:182/225.0 blue:193/225.0 alpha:1.0];

[self.view addSubview:label];

UILabel *labeltext=[[UILabel alloc]initWithFrame:CGRectMake(20, 20, 80, 20)];

labeltext.text=@"添加标签";

labeltext.font=[UIFont systemFontOfSize:18];

[label addSubview:labeltext];

}

//底部按钮创建

-(void)labelbutton{

NSArray *array=[NSArray arrayWithObjects:@"科技",@"手机",@"电脑",@"相机",@"新闻",@"娱乐",@"搞笑",@"美文",@"旅游",@"音乐",@"生活",nil];

int n=0;

for(int i=0;i<2;i++)

{

for (int j=0; j<4; j++) {

UIButton *button=[[UIButton alloc]initWithFrame:CGRectMake(5+j*80, 400+i*40, 70, 30)];

[button setTitle:array[n++] forState:UIControlStateNormal];

button.backgroundColor=[UIColor lightGrayColor];

[self.view addSubview:button];

}

}

}

@end