本文实例为大家分享了ios滑动全屏实现返回功能的具体代码，供大家参考，具体内容如下
系统自带的滑动返回功能，只能滑动边缘返回，而我们希望通过滑动全屏实现返回功能。
定义basenavigationcontroller来取代uinavigationcontroller
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// basenavigationcontroller.h
#import <uikit/uikit.h>
@interface basenavigationcontroller : uinavigationcontroller
@end
// basenavigationcontroller.m
#import "basenavigationcontroller.h"
@interface basenavigationcontroller () <uigesturerecognizerdelegate>
@end
@implementation basenavigationcontroller
#pragma mark - 系统方法
+ (void)load
{
uinavigationbar *navbar = [uinavigationbar appearancewhencontainedin:self, nil];
// 只要是通过模型设置，都是通过富文本设置
// 设置导航条标题 => uinavigationbar
nsmutabledictionary *attrs = [nsmutabledictionary dictionary];
attrs[nsfontattributename] = [uifont boldsystemfontofsize:20.0];
[navbar settitletextattributes:attrs];
// 设置导航条背景图片
[navbar setbackgroundimage:[uiimage imagenamed:@"navigationbarbackgroundwhite"] forbarmetrics:uibarmetricsdefault];
}
- (void)viewdidload {
[super viewdidload];
// do any additional setup after loading the view.
// 自己控制返回手势
// self.interactivepopgesturerecognizer.delegate = self;
// nslog(@"self.interactivepopgesturerecognizer : %@",self.interactivepopgesturerecognizer);
// nslog(@"self.interactivepopgesturerecognizer.delegate : %@",self.interactivepopgesturerecognizer.delegate);
// 全屏返回手势，而不是边缘返回手势
uipangesturerecognizer *pan = [[uipangesturerecognizer alloc] initwithtarget:self.interactivepopgesturerecognizer.delegate action:@selector(handlenavigationtransition:)];
[self.view addgesturerecognizer:pan];
// 控制手势什么时候触发，只有非根控制器才需要出发手势
pan.delegate = self;
// 禁止之前手势
self.interactivepopgesturerecognizer.enabled = no;
}
/**
* self.interactivepopgesturerecognizer : <uiscreenedgepangesturerecognizer: 0x7fb57dc23510; state = possible; delaystouchesbegan = yes; view = <uilayoutcontainerview 0x7fb57dc220e0>; target= <(action=handlenavigationtransition:, target=<_uinavigationinteractivetransition 0x7fb57dc1c570>)>>
* self.interactivepopgesturerecognizer.delegate : <_uinavigationinteractivetransition: 0x7fb57dc1c570>
*/
#pragma mark - uigesturerecognizerdelegate
- (bool)gesturerecognizer:(uigesturerecognizer *)gesturerecognizer shouldreceivetouch:(uitouch *)touch
{
// 当不是根控制器时才会触发返回手势
return (self.childviewcontrollers.count > 1);
}
#pragma mark - 重写
- (void)pushviewcontroller:(uiviewcontroller *)viewcontroller animated:(bool)animated
{
if (self.childviewcontrollers.count > 0) { // 代表不是根控制器
// 自定义返回按钮覆盖了系统的返回手势
viewcontroller.navigationitem.leftbarbuttonitem = [uibarbuttonitem setbackbuttonitemwithimage:[uiimage imagenamed:@"navigationbuttonreturn"] highlightedimage:[uiimage imagenamed:@"navigationbuttonreturnclick"] target:self action:@selector(backclick) title:@"返回"];
}
[super pushviewcontroller:viewcontroller animated:animated];
}
- (void)backclick
{
[self popviewcontrolleranimated:yes];
}
@end
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uibarbuttonitem+item
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// uibarbuttonitem+item.h
#import <uikit/uikit.h>
@interface uibarbuttonitem (item)
+ (uibarbuttonitem *)setbarbuttonitemwithimage:(uiimage *)image highlightedimage:(uiimage *)highlightedimage target:(id)target action:(sel)action;
+ (uibarbuttonitem *)setbarbuttonitemwithimage:(uiimage *)image selectedimage:(uiimage *)selectedimage target:(id)target action:(sel)action;
+ (uibarbuttonitem *)setbackbuttonitemwithimage:(uiimage *)image highlightedimage:(uiimage *)highlightedimage target:(id)target action:(sel)action title:(nsstring *)title;
@end
// uibarbuttonitem+item.m
#import "uibarbuttonitem+item.h"
@implementation uibarbuttonitem (item)
+ (uibarbuttonitem *)setbarbuttonitemwithimage:(uiimage *)image highlightedimage:(uiimage *)highlightedimage target:(id)target action:(sel)action
{
// 1.leftbarbuttonitem
uibutton *leftbutton = [uibutton buttonwithtype:uibuttontypecustom];
[leftbutton setimage:image forstate:uicontrolstatenormal];
[leftbutton setimage:highlightedimage forstate:uicontrolstatehighlighted];
[leftbutton sizetofit];
// 按钮点击事件
[leftbutton addtarget:target action:action forcontrolevents:uicontroleventtouchupinside];
// 由于使用button会使得点击范围增大，所以将button放进view中，然后赋值
uiview *leftview = [[uiview alloc] initwithframe:leftbutton.bounds];
[leftview addsubview:leftbutton];
return [[uibarbuttonitem alloc] initwithcustomview:leftview];
}
+ (uibarbuttonitem *)setbackbuttonitemwithimage:(uiimage *)image highlightedimage:(uiimage *)highlightedimage target:(id)target action:(sel)action title:(nsstring *)title
{
// 设置返回按钮
uibutton *backbutton = [uibutton buttonwithtype:uibuttontypecustom];
[backbutton settitle:title forstate:uicontrolstatenormal];
[backbutton setimage:image forstate:uicontrolstatenormal];
[backbutton setimage:highlightedimage forstate:uicontrolstatehighlighted];
[backbutton settitlecolor:[uicolor blackcolor] forstate:uicontrolstatenormal];
[backbutton settitlecolor:[uicolor redcolor] forstate:uicontrolstatehighlighted];
[backbutton addtarget:target action:action forcontrolevents:uicontroleventtouchupinside];
backbutton.contentedgeinsets = uiedgeinsetsmake(0, -15, 0, 0);
[backbutton sizetofit];
return [[uibarbuttonitem alloc] initwithcustomview:backbutton];
}
+ (uibarbuttonitem *)setbarbuttonitemwithimage:(uiimage *)image selectedimage:(uiimage *)selectedimage target:(id)target action:(sel)action
{
// 1.leftbarbuttonitem
uibutton *leftbutton = [uibutton buttonwithtype:uibuttontypecustom];
[leftbutton setimage:image forstate:uicontrolstatenormal];
[leftbutton setimage:selectedimage forstate:uicontrolstateselected];
[leftbutton sizetofit];
// 按钮点击事件
[leftbutton addtarget:target action:action forcontrolevents:uicontroleventtouchupinside];
// 由于使用button会使得点击范围增大，所以将button放进view中，然后赋值
uiview *leftview = [[uiview alloc] initwithframe:leftbutton.bounds];
[leftview addsubview:leftbutton];
return [[uibarbuttonitem alloc] initwithcustomview:leftview];
}
@end
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持快网idc。
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