navigation中左滑pop的三种方法
来源:互联网 发布:linux 查看进程的流量 编辑:程序博客网 时间:2024/06/05 15:14
- <h2 id="系统自带pop方法">系统自带pop方法
如果我们没有对navigation中的back按钮进行自定义,我们可以直接使用系统自带的左滑pop方法。但是如果我们对back按钮,进行了自定义,我们就要对
self.navigationController.interactivePopGestureRecognizer
这个属性进行设置了。关键代码
__weak typeof(self) weakSelf = self;
self.navigationController.interactivePopGestureRecognizer.delegate =
weakSelf;下面是实例代码:
(继承AbeViewController类,就可以使用系统自带的pop方法。)
#import "AbeViewController.h"@interface AbeViewController ()@end@implementation AbeViewController- (void)viewDidLoad { [super viewDidLoad];}- (void)viewDidAppear:(BOOL)animated{ //**************方法一****************// //设置滑动回退 __weak typeof(self) weakSelf = self; self.navigationController.interactivePopGestureRecognizer.delegate = weakSelf; //判断是否为第一个view if (self.navigationController && [self.navigationController.viewControllers count] == 1) { self.navigationController.interactivePopGestureRecognizer.enabled = NO; }}#pragma mark- UIGestureRecognizerDelegate//**************方法一****************//- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{ return YES;}@end
自定义边缘左滑手势方法
就是实现了一个手势方法,触发这个手势方法时pop。
下面是实例代码:
(继承AbeViewController类,就可以使用自定义边缘左滑手势的pop方法。)
#import "AbeViewController.h"@interface AbeViewController ()@end@implementation AbeViewController- (void)viewDidLoad { [super viewDidLoad];}- (void)viewDidAppear:(BOOL)animated{ //*************方法二*****************// UIScreenEdgePanGestureRecognizer *edgePanGestureRecognizer = [[UIScreenEdgePanGestureRecognizer alloc] initWithTarget:self action:@selector(edgePanGesture:)]; edgePanGestureRecognizer.delegate = self; edgePanGestureRecognizer.edges = UIRectEdgeLeft; [self.view addGestureRecognizer:edgePanGestureRecognizer];}- (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning];}#pragma mark- private method//*************方法二*****************//- (void)edgePanGesture:(UIScreenEdgePanGestureRecognizer*)edgePanGestureRecognizer{ [self.navigationController popViewControllerAnimated:YES];}#pragma mark- UIGestureRecognizerDelegate//**************方法二****************//- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{ if (self.navigationController && [self.navigationController.viewControllers count] == 1) { return NO; } return YES;}@end
自定义view任何位置左移pop
在view中,任何位置左移触发pop方法。
其实就是建立了一个UIPanGestureRecognizer手势,然后该手势触发方法。知识点:
[panGestureRecognizer locationInView:XX] 获取pan手势的CGPoint。
panGestureRecognizer.state pan的状态
self.interactivePopGestureRecognizer.enabled = NO; 原生左滑无效下面是实例代码:
(继承ABENavViewController类,就可以使用自定义view左滑手势的pop方法; ABENavViewController为UINavigationController的子类)
#import "ABENavViewController.h"@interface ABENavViewController ()@property (strong, nonatomic)UIPanGestureRecognizer *panGestureRecognizer;@property (strong, nonatomic)UIImageView *backView;@property (strong, nonatomic)NSMutableArray *backImgs;@property (assign) CGPoint panBeginPoint;@property (assign) CGPoint panEndPoint;@end@implementation ABENavViewController- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{ self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { //initlization } return self;}- (void)loadView{ [super loadView]; [self initilization];}- (void)viewDidLoad { [super viewDidLoad]; [self loadBaseUI];}- (void)initilization{ self.backImgs = [[NSMutableArray alloc] init];}- (void)loadBaseUI{ //原生方法无效 self.interactivePopGestureRecognizer.enabled = NO; //设置手势 self.panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panGestureRecognizerAction:)]; [self.view addGestureRecognizer:self.panGestureRecognizer];}#pragma mark- public method- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{ //截图 UIGraphicsBeginImageContextWithOptions([UIScreen mainScreen].bounds.size, YES, 1.0); [[UIApplication sharedApplication].keyWindow.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *img = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); [self.backImgs addObject:img]; [super pushViewController:viewController animated:animated];}- (UIViewController *)popViewControllerAnimated:(BOOL)animated{ [_backImgs removeLastObject]; return [super popViewControllerAnimated:animated];}#pragma mark- private method- (void)panGestureRecognizerAction:(UIPanGestureRecognizer*)panGestureRecognizer{ if ([self.viewControllers count] == 1) { return ; } if (panGestureRecognizer.state == UIGestureRecognizerStateBegan) { NSLog(@"滑动开始"); //存放滑动开始的位置 self.panBeginPoint = [panGestureRecognizer locationInView:[UIApplication sharedApplication].keyWindow]; //插入图片 [self insertLastViewFromSuperView:self.view.superview]; }else if(panGestureRecognizer.state == UIGestureRecognizerStateEnded){ NSLog(@"滑动结束"); //存放数据 self.panEndPoint = [panGestureRecognizer locationInView:[UIApplication sharedApplication].keyWindow]; if ((_panEndPoint.x - _panBeginPoint.x) > 50) { [UIView animateWithDuration:0.3 animations:^{ [self moveNavigationViewWithLenght:[UIScreen mainScreen].bounds.size.width]; } completion:^(BOOL finished) { [self removeLastViewFromSuperView]; [self moveNavigationViewWithLenght:0]; [self popViewControllerAnimated:NO]; }]; }else{ [UIView animateWithDuration:0.3 animations:^{ [self moveNavigationViewWithLenght:0]; }]; } }else{ //添加移动效果 CGFloat panLength = ([panGestureRecognizer locationInView:[UIApplication sharedApplication].keyWindow].x - _panBeginPoint.x); if (panLength > 0) { [self moveNavigationViewWithLenght:panLength]; } }}/** * 移动视图界面 * * @param lenght 移动的长度 */- (void)moveNavigationViewWithLenght:(CGFloat)lenght{ //图片位置设置 self.view.frame = CGRectMake(lenght, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height); //图片动态阴影 _backView.alpha = (lenght/[UIScreen mainScreen].bounds.size.width)*2/3 + 0.33;}/** * 插图上一级图片 * * @param superView 图片的superView */- (void)insertLastViewFromSuperView:(UIView *)superView{ //插入上一级视图背景 if (_backView == nil) { _backView = [[UIImageView alloc] initWithFrame:[UIScreen mainScreen].bounds]; _backView.image = [_backImgs lastObject];; } [self.view.superview insertSubview:_backView belowSubview:self.view];}/** * 移除上一级图片 */- (void)removeLastViewFromSuperView{ [_backView removeFromSuperview]; _backView = nil;}@end
0 0
- navigation中左滑pop的三种方法
- iOS-navigation中左滑pop的三种方法
- IOS-navigation中左滑pop的三种方法(转)
- 小胖说事29-----iOS中Navigation中左滑pop页面的三种方法
- 小胖说事29-----iOS中Navigation中左滑pop页面的三种方法
- 滑动pop Navigation
- 滑动Pop Navigation
- iOS tabbar和navigation组合,点击item两次,会pop到上一个页面,解决不让控制器跳转的方法
- navigation右侧添加多个按钮(三种方法)
- navigation右侧添加多个按钮(三种方法)
- pop方法的理解
- navigation pop到指定页
- 遮挡tabbar,navigation的方法
- gmail的pop设置方法
- Python的List.pop()方法
- 小学ios:navigation push的几种方法
- Material Design (三) Navigation Drawer的使用
- 王学岗ToolBar,DrawLayout+Navigation的使用(三)
- Android与服务器网站交互(一)
- SpringMVC利用AOP实现自定义注解记录日志
- oracle----------查询
- iOS UINavigationController的iOS 7的手势滑动返回功能
- 【Android】ListView与Button的共存问题解决
- navigation中左滑pop的三种方法
- MFC中CDC与HDC的区别以及二者之间的转换
- Android入门第二课:搭建安卓开发环境
- 选择排序
- 使用MUI框架构建App请求http接口实例
- 30. Substring with Concatenation of All Words leetcode Python 2016 new season
- meinheld为何比gevent高效?
- maven项目中缺少maven dependency目录
- android常用配色