第三中类型。自己定义任何位置返回页面的方式，上边的类就是.m，大家能够贴过去使用。这个类是继承NavigationController的。用这个类初始化rootController就能够了。这里还有源代码可下载。完整的类：http://download.csdn.net/detail/haogaoming123/8906671
1.系统自带pop方法">系统自带pop方法
假设我们没有对navigation中的backbutton进行自己定义，我们能够直接使用系统自带的左滑pop方法。
可是假设我们对backbutton。进行了自己定义，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;
以下是实例代码：
（继承AbeViewController类。就能够使用系统自带的pop方法。）
@interface AbeViewController ()<uigesturerecognizerdelegate>
@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;
//推断是否为第一个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
2.自己定义边缘左滑手势方法
以下是实例代码：就是实现了一个手势方法，触发这个手势方法时pop。（继承AbeViewController类，就能够使用自己定义边缘左滑手势的pop方法。
）
@interface AbeViewController ()<uigesturerecognizerdelegate>
@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
3.自己定义view不论什么位置左移pop
事实上就是建立了一个UIPanGestureRecognizer手势，然后该手势触发方法。panGestureRecognizer.state pan的状态。
而且设置self.interactivePopGestureRecognizer.enabled = NO; 原生左滑无效
以下是实例代码：在view中，不论什么位置左移触发pop方法。
知识点：[panGestureRecognizer locationInView:XX] 获取pan手势的CGPoint。
（继承ABENavViewController类，就能够使用自己定义view左滑手势的pop方法； ABENavViewController为UINavigationController的子类。
//
// NavigationViewController.m
// BaseProject
//
// Created by haogaoming on 15/7/13.
// Copyright (c) 2015年 郝高明. All rights reserved.
//
#import "NavigationViewController.h"
@interface NavigationViewController ()
@property (nonatomic,strong) UIImageView *backview;
@property (nonatomic,strong) NSMutableArray *backImgs;
@property (nonatomic,assign) CGPoint panBeginPoint;
@property (nonatomic,assign) CGPoint panEndPoint;
@end
@implementation NavigationViewController
- (id)init {
self = [super init];
self.delegate = self;
return self;
}
- (id)initWithRootViewController:(UIViewController *)rootViewController {
self = [super initWithRootViewController:rootViewController];
self.delegate = self;
return self;
}
-(void)loadView
{
[super loadView];
self.backImgs = [NSMutableArray array];
}
- (void)viewDidLoad {
[super viewDidLoad];
//原生方法无效
self.interactivePopGestureRecognizer.enabled = NO;
//设置手势
[self.view AddGestureRecognizer:UIPanGestureRecognizerStyle delegate:self Section:@selector(panGestureRecognizerAction:)];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
return (toInterfaceOrientation == UIInterfaceOrientationPortrait);
}
- (BOOL)shouldAutorotate
{
return NO;
}
-(UIViewController *)popViewControllerAnimated:(BOOL)animated
{
[_backImgs removeLastObject];
return [super popViewControllerAnimated:animated];
}
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated {
if (self.viewControllers.count==1) {
viewController.hidesBottomBarWhenPushed = YES;
}
//截图
UIGraphicsBeginImageContextWithOptions([UIScreen mainScreen].bounds.size, YES, 0.0f);
[[UIApplication sharedApplication].keyWindow.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
[self.backImgs addObject:img];
sleep(0.5); //防止没有截频成功
[super pushViewController:viewController animated:animated];
}
#pragma make-method
-(void)panGestureRecognizerAction:(UIPanGestureRecognizer *)panGesture
{
if (self.viewControllers.count == 1) {
return;
}
if (panGesture.state == UIGestureRecognizerStateBegan) {
//滑动開始
self.panBeginPoint = [panGesture locationInView:[UIApplication sharedApplication].keyWindow];
//插入图片
[self insertLastViewFromSuperView:self.view.superview];
}else if (panGesture.state == UIGestureRecognizerStateEnded){
//滑动结束
self.panEndPoint = [panGesture locationInView:[UIApplication sharedApplication].keyWindow];
if (self.view.left >= (self.view.width/2.0)-50) {
[UIView animateWithDuration:0.3 animations:^{
[self moveNavigationViewWithLength:[UIScreen mainScreen].bounds.size.width];
} completion:^(BOOL finished) {
[self removeLastViewFromSuperview];
[self moveNavigationViewWithLength:0];
[self popViewControllerAnimated:NO];
}];
}else{
[UIView animateWithDuration:0.3 animations:^{
[self moveNavigationViewWithLength:0];
}];
}
}else{
CGPoint point = [panGesture locationInView:[UIApplication sharedApplication].keyWindow];
//防止右滑
if ((point.x-self.panBeginPoint.x)<0) {
return;
}
[self moveNavigationViewWithLength:(point.x-self.panBeginPoint.x)];
}
}
/**
* 更改frame的位置
*
* @param lenght self.view的left位置
*/
-(void)moveNavigationViewWithLength:(CGFloat)lenght
{
//图片位置设置
self.view.frame = CGRectMake(lenght, self.view.top, self.view.width, self.view.height);
//图片动态阴影
_backview.alpha = (lenght/[UIScreen mainScreen].bounds.size.width)*2/3 + 0.5;
}
/**
* 将背景图插入到当前view的下边。然后通过改变self.view的frame实现滑动
*
* @param supView 画布
*/
-(void)insertLastViewFromSuperView:(UIView *)supView
{
//插入上一级视图背景
if (_backview == nil) {
_backview = [[UIImageView alloc]initWithFrame:[UIScreen mainScreen].bounds];
} _backview.image = [_backImgs lastObject];[supView insertSubview:_backview belowSubview:self.view];}/** * 移除背景图 */-(void)removeLastViewFromSuperview{ [_backview removeFromSuperview]; _backview = nil;}- (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}@end
