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 |
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 |
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服务器之家。
原文链接：https://blog.csdn.net/MyKingSaber/article/details/72841339
