时间:2021-05-19
本文实例为大家分享了iOS实现抽屉效果的全部代码,供大家参考,具体内容如下
iOS实现简易抽屉效果,代码:
@interface ViewController () { UIView* _leftView;} @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. _leftView = [[UIView alloc] init]; //把左侧边的view先隐藏 _leftView.frame = CGRectMake(-200, 0, 200, self.view.frame.size.height); _leftView.backgroundColor = [UIColor greenColor]; [self.view addSubview:_leftView]; UIPanGestureRecognizer* pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)]; [self.view addGestureRecognizer:pan];} - (void)handlePan:(UIPanGestureRecognizer*) recognizer { CGPoint translation = [recognizer translationInView:self.view]; //增量后的x坐标位置 CGFloat Xresult = translation.x + _leftView.frame.origin.x; //向右 if (translation.x >= 0) { //leftView已全部拉出,则无法再向右 if (_leftView.frame.origin.x >= 0 || Xresult >= 0) { _leftView.frame = CGRectMake(0, 0, 200, self.view.frame.size.height); return; } } else if (translation.x < 0) {//向左 //leftView已全部收回,则无法再向左 if (_leftView.frame.origin.x <= -200 || Xresult <= -200) { _leftView.frame = CGRectMake(-200, 0, 200, self.view.frame.size.height); return; } } CGRect frame = _leftView.frame; frame.origin.x += translation.x; _leftView.frame = frame; //清空移动的距离,这是关键 [recognizer setTranslation:CGPointZero inView:recognizer.view]; //做弹回效果,以中轴为界限 if (recognizer.state == UIGestureRecognizerStateEnded) { if (_leftView.frame.origin.x > -100) { [self closeView:NO]; } else { [self closeView:YES]; } }} - (void)closeView:(BOOL)close { if (close) { [self moveView:CGRectMake(-200, 0, 200, self.view.frame.size.height)]; } else { [self moveView:CGRectMake(0, 0, 200, self.view.frame.size.height)]; }} - (void)moveView:(CGRect)frame { [UIView animateWithDuration:0.3 animations:^{ _leftView.frame = frame; } completion:^(BOOL finished) { }];}iOS实现双边抽屉效果,代码:
#import "PathView.h"#import "UIView+Additions.h" @implementation PathView - (instancetype)init { self = [super init]; if (self) { [self setupGestureRecognizer]; } return self;} - (void)setupGestureRecognizer { UIPanGestureRecognizer* pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)]; [self addGestureRecognizer:pan];} - (void)handlePan:(UIPanGestureRecognizer*)recognizer { CGPoint translation = [recognizer translationInView:self]; CGFloat Xresult = translation.x + self.left; if (translation.x >= 0) {//向右 if (self.left >= _leftWidth || Xresult >= _leftWidth) { self.frame = CGRectMake(_leftWidth, 0, self.width, self.height); return; } } else if (translation.x < 0) {//向左 if (self.left <= -_rightWidth || Xresult <= -_rightWidth) { self.frame = CGRectMake(-_rightWidth, 0, self.width, self.height); return; } } self.left += translation.x; if (recognizer.state == UIGestureRecognizerStateEnded) { if (self.left > _leftWidth / 2) { [self openLeft:YES openRight:NO]; } else if (self.left < -(_rightWidth / 2)) { [self openLeft:NO openRight:YES]; } else { [self openLeft:NO openRight:NO]; } } //清空移动的距离 [recognizer setTranslation:CGPointZero inView:recognizer.view];} - (void)openLeft:(BOOL)left openRight:(BOOL)right { if (!left && !right) { [self moveView:CGRectMake(0, 0, self.width, self.height)]; } else if (!left && right) { [self moveView:CGRectMake(-_rightWidth, 0, self.width, self.height)]; } else if (left && !right) { [self moveView:CGRectMake(_leftWidth, 0, self.width, self.height)]; }} - (void)moveView:(CGRect)frame { [UIView animateWithDuration:0.3 animations:^{ self.frame = frame; } completion:^(BOOL finished) { }];}上面是实现的具体内容,所以不做多少注释,只不过把手势移到view里面,让view自己改变自己的frame;再有就是添加了两个属性,来指定左右两边各自抽屉抽出的宽度,某一边不需要,只要设置为0就好了。
以上就是本文的全部内容,希望能够帮助大家顺利实现iOS抽屉效果。
声明:本页内容来源网络,仅供用户参考;我单位不保证亦不表示资料全面及准确无误,也不保证亦不表示这些资料为最新信息,如因任何原因,本网内容或者用户因倚赖本网内容造成任何损失或损害,我单位将不会负任何法律责任。如涉及版权问题,请提交至online#300.cn邮箱联系删除。
导读简单用swift写了一个抽屉效果,可以直接使用并且简单;很多软件都运了抽屉效果,比如qq的左抽屉,英雄联盟,滴滴打车,和uber等等都运用了抽屉;效果ios
本文实例介绍了iOS实现侧拉栏抽屉效果的相关代码,分享给大家供大家参考,具体内容如下需要导入第三方的类库如下:抽屉效果所需第三方类库下载效果:既可以两侧都实现抽
最近,看到好多Android上的抽屉效果,也忍不住想要自己写一个。在Android里面可以用SlidingDrawer,很方便的实现。IOS上面就只有自己写了。
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
在Andoird使用Android自带的那些组件,像SlidingDrawer和DrawerLayout都是抽屉效果的菜单,但是在项目很多要实现的功能都收到An