南昌春秋旅行社,官人 我要,南昌妲雅美肤中心
楼主项目中需要有一个轮播图，因为比较简单，就自己写了个，因为是从网上弄得图片 所以用了sdwebimage 这个三方库 当然自己也可以去掉
类型后面有*号 如用使用 请自行加上。。。。。
代码：.h 文件
@protocol tjxviewdelegate<nsobject> //判断点击的那个 -(void)sendimagename:(tjxview *)tjxview andname:(nsinteger)selectimage; @end @interface tjxview : uiview @property (nonatomic,weak)id<tjxviewdelegate>delegate; //传一个frame 和 装有图片名字的数组过来 //参数一：frame //参数二：装有图片名字的数组 //参数三：bool如果是yes，那么自动滚动，如果是no不滚动 -(id)initwithframe:(cgrect)frame andimagenamearray: (nsmutablearray * )imagenamearray andisrunning:(bool)isrunning; @end
.m文件
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@interface tjxview()<uiscrollviewdelegate>
{
nsinteger _currentpage; //记录真实的页码数
nstimer *_timer; //生命一个全局变量
}
@property (nonatomic,assign) bool isrun;
@property (nonatomic,strong) nsmutablearray *imagearray;//存储图片的名字
@property (nonatomic,strong) uiscrollview *scrollview;
@property (nonatomic,strong) uipagecontrol *pagecontrol;
@property (nonatomic,assign) cgfloat width;//view的宽
@property (nonatomic,assign) cgfloat height;//view的高
@end
-(id)initwithframe:(cgrect)frame andimagenamearray:(nsmutablearray *)imagenamearray andisrunning:(bool)isrunning{
self = [super initwithframe:frame];
if (self) {
_width = self.frame.size.width;
_height = self.frame.size.height;
//arraywitharray 把数组中的内容放到一个数组中返回
self.imagearray = [nsmutablearray arraywitharray:imagenamearray];
//在数组的尾部添加原数组第一个元素
[self.imagearray addobject:[imagenamearray firstobject]];
//在数组的首部添加原数组最后一个元素
[self.imagearray insertobject:[imagenamearray lastobject] atindex:0];
self.isrun = isrunning;
_currentpage = 0;
[self createsro];
[self createpagecontrol];
[self createtimer];
}
return self;
}
-(void)createtimer{
if (_isrun == yes) {
_timer = [nstimer scheduledtimerwithtimeinterval:2 target:self selector:@selector(change) userinfo:nil repeats:yes ];
[[nsrunloop currentrunloop]addtimer:_timer formode:nsrunloopcommonmodes]; }
}
-(void)change{
//1获得当前的点
cgpoint point = _scrollview.contentoffset;
//2求得将要变换的点
cgpoint endpoint = cgpointmake(point.x+_width, 0);
//判断
if (endpoint.x == (self.imagearray.count-1)*_width) {
[uiview animatewithduration:0.25 animations:^{
_scrollview.contentoffset = cgpointmake(endpoint.x, 0);
} completion:^(bool finished) {
//动画完成的block
_scrollview.contentoffset = cgpointmake(_width, 0);
cgpoint realend = _scrollview.contentoffset;
//取一遍页码数
_currentpage = realend.x/_width;
_pagecontrol.currentpage = _currentpage-1;
}];
}
else{
//0.25s中更改一个图片
[uiview animatewithduration:0.25 animations:^{
_scrollview.contentoffset = endpoint;
} completion:^(bool finished) {
}];
cgpoint realend = _scrollview.contentoffset;
//取一遍页码数
_currentpage = realend.x/_width;
_pagecontrol.currentpage = _currentpage-1;
}
}
//创建页码指示器
-(void)createpagecontrol{
_pagecontrol = [[uipagecontrol alloc]initwithframe:cgrectmake(_width-200, _height-30, 100, 30)];
_pagecontrol.centerx = _width/2;
_pagecontrol.numberofpages = self.imagearray.count-2;
_pagecontrol.pageindicatortintcolor = wp_gray_color;
_pagecontrol.currentpageindicatortintcolor = [uicolor whitecolor];
_pagecontrol.userinteractionenabled = no;
[self addsubview:_pagecontrol];
}
//创建滚动视图
-(void)createsro{
_scrollview = [[uiscrollview alloc]initwithframe:cgrectmake(0, 0, _width, _height)];
_scrollview.contentsize = cgsizemake(_width*self.imagearray.count, _height);
for (int i = 0; i < self.imagearray.count; i++) {
uiimageview *imageview = [[uiimageview alloc]initwithframe:cgrectmake(i*_width, 0, _width, _height)];
// imageview.image = [uiimage imagenamed:self.imagearray[i]];
[imageview sd_setimagewithurl:self.imagearray[i] placeholderimage:[uiimage imagenamed:@"home_banner_blank"]];
imageview.userinteractionenabled = yes;
imageview.tag = 200+i;
uitapgesturerecognizer *tap = [[uitapgesturerecognizer alloc]initwithtarget:self action:@selector(tap:)];
[imageview addgesturerecognizer:tap];
[_scrollview addsubview:imageview];
}
//水平指示条不显示
_scrollview.showshorizontalscrollindicator = no;
//关闭弹簧效果
_scrollview.bounces = no;
//设置用户看到第一张
_scrollview.contentoffset = cgpointmake(_width, 0);
//设置代理
_scrollview.delegate = self;
//分页效果
_scrollview.pagingenabled = yes;
[self addsubview:_scrollview];
}
-(void)tap:(uitapgesturerecognizer *)tap{
if(_delegate&&[_delegate respondstoselector:@selector(sendimagename:andname:)]){
[_delegate sendimagename:self andname:tap.view.tag-201];
}else{
nslog(@"没有设置代理或者没有事先协议的方法");
}
}
#pragma mark uiscrollviewdelegate
//停止滚动
-(void)scrollviewdidenddecelerating:(uiscrollview *)scrollview{
if (_timer) {
[_timer setfiredate:[nsdate datewithtimeintervalsincenow:2]];
}
//图片的个数 1 2 3 4 5 6 7 8
//真实的页码 0 1 2 3 4 5 6 7
//显示的页码 0 1 2 3 4 5
cgpoint point = _scrollview.contentoffset;
if (point.x == (self.imagearray.count-1)*_width) {
scrollview.contentoffset = cgpointmake(_width, 0);
}
if (point.x == 0) {
scrollview.contentoffset = cgpointmake((self.imagearray.count-2)*_width, 0);
}
//取一遍页码数
cgpoint endpoint = scrollview.contentoffset;
_currentpage = endpoint.x/_width;
_pagecontrol.currentpage = _currentpage-1;
}
//手指开始触摸的时候，停止计时器
-(void)scrollviewwillbegindragging:(uiscrollview *)scrollview{
if (_timer) {
//如果有，停掉
[_timer setfiredate:[nsdate distantfuture]];
}
}
在项目中 导入头文件 遵守代理
tjxview * tjxview = [[tjxview alloc]initwithframe:cgrectmake(0, 0, wpscreen_width, 100*wpscreen_higth_ratio) andimagenamearray:self.bannerimager andisrunning:yes];
tjxview.delegate = self;
[self.view addsubview: tjxview];
#pragma mark tjxviewdelegate
-(void)sendimagename:(tjxview *) tjxview andname:(nsinteger)selectimage{
kklog(@"%ld",(long)selectimage);
}
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