本文实例为大家分享了ios自定义view实现卡片滑动效果的具体代码，供大家参考，具体内容如下
说明
控件基于uiview封装完成，采用uipangesturerecognizer监听自身的触摸事件，以此处理各种滑动动画操作。
内容之间可以循环切换，采用类似tableview加载机制，达到复用效果
效果
代码实现
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#import <uikit/uikit.h>@class smswipeview;@protocol smswipedelegate <nsobject>@required//获取显示数据内容-(uitableviewcell*)smswipegetview:(smswipeview*)swipe withindex:(int)index;//获取数据源总量-(nsinteger)smswipegettotalenum:(smswipeview*)swipe;@end@interface smswipeview : uiview@property(nonatomic,weak)id<smswipedelegate> delegate;//层叠透明方式显示 默认no@property(nonatomic,assign)bool isstackcard;//加载方法-(void)reloaddata;//根据id获取缓存的cell-(uitableviewcell*)dequeuereusableuiviewwithidentifier:(nsstring*)identifier;@end |
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#import "smswipeview.h"#define degreetoradians(x) (m_pi * (x)/180)//childview距离父view左右的距离const int left_right_margin=10;//当前view距离父view的顶部的值const int top_margtin=16;@interface smswipeview()//已经划动到边界外的一个view@property(nonatomic,weak)uitableviewcell * viewremove;//放当前显示的子view的数组@property(nonatomic,strong)nsmutablearray * cacheviews;//view总共的数量@property(nonatomic,assign)int totalnum;//当前的下标@property(nonatomic,assign)int nowindex;//触摸开始的坐标@property(nonatomic,assign)cgpoint pointstart;//上一次触摸的坐标@property(nonatomic,assign)cgpoint pointlast;//最后一次触摸的坐标@property(nonatomic,assign)cgpoint pointend;//正在显示的cell@property(nonatomic,weak)uitableviewcell * nowcell;//下一个cell@property(nonatomic,weak)uitableviewcell * nextcell;//第三个cell@property(nonatomic,weak)uitableviewcell * thirdcell;//自身的宽度@property(nonatomic,assign)int w;//自身的高度@property(nonatomic,assign)int h;//是否是第一次执行@property(nonatomic,assign)bool isfirstlayoutsub;@end@implementation smswipeview//从xib中加载该类-(void)awakefromnib{ [super awakefromnib]; [self initself];}//直接用方法初始化-(instancetype)initwithframe:(cgrect)frame{ self=[super initwithframe:frame]; [self initself]; return self;}//进行一些自身的初始化和设置-(void)initself{ self.clipstobounds=yes; self.cacheviews=[[nsmutablearray alloc]init]; //手势识别 uipangesturerecognizer * pan=[[uipangesturerecognizer alloc]initwithtarget:self action:@selector(pan:)]; [self addgesturerecognizer:pan];}//布局subview的方法-(void)layoutsubviews{ if(!self.isfirstlayoutsub){ self.isfirstlayoutsub=yes; self.w=self.bounds.size.width; self.h=self.bounds.size.height; [self reloaddata]; }}//重新加载数据方法，会再首次执行layoutsubviews的时候调用-(void)reloaddata{ if (!self.delegate||![self.delegate respondstoselector:@selector(smswipegetview:withindex:)]||![self.delegate respondstoselector:@selector(smswipegettotalenum:)]) { return; } self.totalnum=(int)[self.delegate smswipegettotalenum:self]; self.viewremove=nil; uitableviewcell * nowcell=[self.delegate smswipegetview:self withindex:self.nowindex]; uitableviewcell * nextcell=[self.delegate smswipegetview:self withindex:self.nowindex+1<self.totalnum?self.nowindex+1:0]; uitableviewcell * thirdcell=[self.delegate smswipegetview:self withindex:self.nowindex+2<self.totalnum?self.nowindex+2:self.nowindex+2-self.totalnum]; if (self.isstackcard) { [thirdcell setalpha:0.3f]; [nextcell setalpha:0.5f]; [nowcell setalpha:1]; } [thirdcell removefromsuperview]; thirdcell.layer.anchorpoint=cgpointmake(1, 1); thirdcell.frame=cgrectmake(left_right_margin*2, 0, self.w-2*2*left_right_margin, self.h-top_margtin); [self addsubview:thirdcell]; self.thirdcell=thirdcell; [nextcell removefromsuperview]; nextcell.layer.anchorpoint=cgpointmake(1, 1); nextcell.frame=cgrectmake(left_right_margin, top_margtin/2*1, self.w-2*left_right_margin, self.h-top_margtin); [self addsubview:nextcell]; self.nextcell=nextcell; [nowcell removefromsuperview]; nowcell.layer.anchorpoint=cgpointmake(1, 1); nowcell.frame=cgrectmake(0, top_margtin, self.w, self.h-top_margtin); [self addsubview:nowcell]; self.nowcell=nowcell;}#pragma mark swipe触摸的相关手势处理-(void)swipe:(uiswipegesturerecognizer*)sender{ nslog(@"swipe");}-(void)pan:(uipangesturerecognizer*)sender{ cgpoint translation = [sender translationinview: self]; //cgpoint speed=[sender velocityinview:self];//获取速度 if (sender.state==uigesturerecognizerstatebegan) { //nslog(@"begin"); self.pointstart=translation; self.pointlast=translation; } if (sender.state==uigesturerecognizerstatechanged) { //nslog(@"change"); // cgfloat xmove=translation.x-self.pointlast.x; // cgfloat ymove=translation.y-self.pointlast.y; // self.pointlast=translation; // // cgpoint center=self.nowcell.center; // self.nowcell.center=cgpointmake(center.x+xmove, center.y+ymove); cgfloat xtotalmove=translation.x-self.pointstart.x; // if (xtotalmove<0) { // self.nowcell.transform = cgaffinetransformmakerotation(degreetoradians(90*xtotalmove/self.w)); // self.nextcell.transform= cgaffinetransformmakerotation(degreetoradians(90*xtotalmove/self.w/2)); // }else{ // self.nowcell.transform = cgaffinetransformmakerotation(degreetoradians(0)); // self.nextcell.transform= cgaffinetransformmakerotation(degreetoradians(0)); // } } if (sender.state==uigesturerecognizerstateended) { //nslog(@"end"); cgfloat xtotalmove=translation.x-self.pointstart.x; if (xtotalmove<0) { [self swipeend]; }else{ [self swipegoback]; } } // nslog(@"%@%f%@%f",@"x:",speed.x,@"y:",speed.y); //nslog(@"%@%f%@%f",@"x:",translation.x,@"y:",translation.y);}/** * @author stonemover, 16-12-29 14:12:33 * * @brief 获取为显示的cell,复用机制 * * @param identifier id标志 * * @return 返回的cell,如果缓存中没有则返回空 */-(uitableviewcell*)dequeuereusableuiviewwithidentifier:(nsstring *)identifier{ for (uitableviewcell * cell in self.cacheviews) { if ([identifier isequaltostring:cell.reuseidentifier]) { [self.cacheviews removeobject:cell]; return cell; } } return nil;}//滑动到下一个界面-(void)swipeend{ [uiview animatewithduration:0.3 animations:^{ self.nextcell.transform= cgaffinetransformmakerotation(degreetoradians(0)); }]; //self.nowcell.transform= cgaffinetransformmakerotation(degreetoradians(0)); cgpoint center=self.nowcell.center; [uiview animatewithduration:0.3 animations:^{ self.nowcell.center=cgpointmake(center.x-self.w, center.y); self.nowcell.transform= cgaffinetransformmakerotation(degreetoradians(0)); // [self.nowcell setalpha:0.0]; } completion:^(bool finished) { self.nowindex++; self.nowindex=self.nowindex<self.totalnum?self.nowindex:0; if (self.viewremove&&[self isneedaddtocache:self.viewremove]) { [self.cacheviews addobject:self.viewremove]; [self.viewremove removefromsuperview]; } self.viewremove=self.nowcell; //self.viewremove.layer.anchorpoint=cgpointmake(0, 0); //self.viewremove.transform=cgaffinetransformmakerotation(degreetoradians(-35)); self.nowcell=self.nextcell; self.nextcell=self.thirdcell; uitableviewcell * thirdcell=[self.delegate smswipegetview:self withindex:self.nowindex+2<self.totalnum?(int)self.nowindex+2:(int)self.nowindex+2-(int)self.totalnum]; [thirdcell removefromsuperview]; thirdcell.layer.anchorpoint=cgpointmake(1, 1); thirdcell.frame=cgrectmake(left_right_margin*2, 0, self.w-2*2*left_right_margin, self.h-top_margtin); self.thirdcell=thirdcell; if (self.isstackcard) { [self.thirdcell setalpha:0.3f]; [self.nextcell setalpha:0.5f]; [self.nowcell setalpha:1]; } [self insertsubview:thirdcell belowsubview:self.nextcell]; [uiview animatewithduration:0.2 animations:^{ self.nowcell.frame=cgrectmake(0, top_margtin, self.w, self.h-top_margtin); self.nextcell.frame=cgrectmake(left_right_margin, top_margtin/2*1, self.w-2*left_right_margin, self.h-top_margtin); }]; }];}//滑动到上一个界面-(void)swipegoback{ if (!self.viewremove) { nslog(@"!viewremove"); return; } if (self.nowindex==0) { nslog(@"!viewremove+index"); return; } cgpoint center=self.viewremove.center; self.nowindex--; // if ([self isneedaddtocache:self.thirdcell]) { // [self.cacheviews addobject:self.thirdcell]; // } [self.thirdcell removefromsuperview]; self.thirdcell=self.nextcell; self.nextcell=self.nowcell; self.nowcell=self.viewremove; if (self.nowindex==0) { self.viewremove=nil; }else{ uitableviewcell * cell=[self.delegate smswipegetview:self withindex:(int)self.nowindex-1]; [cell removefromsuperview]; [self insertsubview:cell abovesubview:self.nowcell]; cell.layer.anchorpoint=cgpointmake(1, 1); cell.frame=self.viewremove.frame; self.viewremove=cell; } [uiview animatewithduration:.5 animations:^{ self.nowcell.center=cgpointmake(center.x+self.w, center.y); self.nowcell.transform= cgaffinetransformmakerotation(degreetoradians(0)); self.nextcell.frame=cgrectmake(left_right_margin, top_margtin/2*1, self.w-2*left_right_margin, self.h-top_margtin); self.thirdcell.frame=cgrectmake(left_right_margin*2, 0, self.w-2*2*left_right_margin, self.h-top_margtin); }];}//是否需要加入到缓存中去-(bool)isneedaddtocache:(uitableviewcell*)cell{ for (uitableviewcell * cellin in self.cacheviews) { if ([cellin.reuseidentifier isequaltostring:cell.reuseidentifier]) { return no; } } return yes;}@end |
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原文链接：https://blog.csdn.net/zl18603543572/article/details/79043947
