前言
ios中抽屉效果的简单实现现在很多应用中都使用到了，网上也有很多了例子，本文主要是通过简单的一些代码来实现的，有需要的可以一起学习学习。
下面是效果图
示例代码如下
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#import <uikit/uikit.h>
@interface mainviewcontroller : uiviewcontroller
+ (instancetype)mainviewcontrollerwithleftviewcontroller:(uiviewcontroller *)leftviewcontroller withmainpageviewcontroller:(uiviewcontroller *)mainpageviewcontroller;
@end
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#import "mainviewcontroller.h"
#define kwidth self.view.frame.size.width
#define kheight self.view.frame.size.height
@interface mainviewcontroller ()
@property (nonatomic,strong)uiviewcontroller *leftvc;
@property (nonatomic,strong)uiviewcontroller *centervc;
@property (nonatomic,assign)bool isslider;
@property (nonatomic,strong)uiview *corverview;
@end
@implementation mainviewcontroller
+ (instancetype)mainviewcontrollerwithleftviewcontroller:(uiviewcontroller *)leftviewcontroller withmainpageviewcontroller:(uiviewcontroller *)mainpageviewcontroller{
mainviewcontroller *mainvc = [[mainviewcontroller alloc] init];
mainvc.leftvc = leftviewcontroller;
mainvc.centervc = mainpageviewcontroller;
return mainvc;
}
- (void)viewdidload{
[super viewdidload];
self.isslider = no;
self.view.backgroundcolor = [uicolor whitecolor];
[self addchildviewcontroller:self.leftvc];
[self.view addsubview:self.leftvc.view];
[self addchildviewcontroller:self.centervc];
[self.view addsubview:self.centervc.view];
// 给左视图和主视图添加手势
[self addgestureforview];
}
// 给主视图添加遮盖
- (void)addcorverview{
if (self.corverview) {
[self.corverview removefromsuperview];
self.corverview = nil;
}
self.corverview = [[uiview alloc] initwithframe:self.centervc.view.bounds];
_corverview.backgroundcolor = [[uicolor blackcolor] colorwithalphacomponent:0.0];
[self.centervc.view addsubview:self.corverview];
}
// 移除主视图遮盖
- (void)removecoverview{
if (self.corverview) {
[self.corverview removefromsuperview];
self.corverview = nil;
}
}
// 给左视图和主视图添加手势
- (void)addgestureforview{
uiswipegesturerecognizer *rightgesture = [[uiswipegesturerecognizer alloc] initwithtarget:self action:@selector(swiperightaction:)];
rightgesture.direction = uiswipegesturerecognizerdirectionright;
[self.centervc.view addgesturerecognizer:rightgesture];
uiswipegesturerecognizer *leftgesture = [[uiswipegesturerecognizer alloc] initwithtarget:self action:@selector(swipeleftaction:)];
leftgesture.direction = uiswipegesturerecognizerdirectionleft;
[self.centervc.view addgesturerecognizer:leftgesture];
uiswipegesturerecognizer *leftvcleftswipegesture = [[uiswipegesturerecognizer alloc] initwithtarget:self action:@selector(leftvcleftswipeaction:)];
leftvcleftswipegesture.direction = uiswipegesturerecognizerdirectionleft;
[self.leftvc.view addgesturerecognizer:leftvcleftswipegesture];
}
- (void)swiperightaction:(id)sender{
[self moveview:self.centervc.view scale:0.8 panvalue:kwidth];
self.isslider = yes;
[self addcorverview];
}
- (void)swipeleftaction:(id)sender{
[self moveview:self.centervc.view scale:1 panvalue:kwidth / 2];
self.isslider = no;
[self removecoverview];
}
- (void)leftvcleftswipeaction:(id)sender{
[self moveview:self.centervc.view scale:1 panvalue:kwidth / 2];
self.isslider = no;
[self removecoverview];
}
// 平移和缩放一个视图
- (void)moveview:(uiview *)view scale:(cgfloat)scale panvalue:(cgfloat)value{
[uiview beginanimations:nil context:nil];
view.transform = cgaffinetransformscale(cgaffinetransformidentity,scale,scale);
view.center = cgpointmake(value, view.center.y);
[uiview commitanimations];
}
@end
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总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能有所帮助，如果有疑问大家可以留言交流。