iOS中仿QQ侧滑菜单功能

uitabbarcontroller做qq侧滑菜单效果：

首先要了解uitabbarcontroller的层级结构：

uitabbarcontroller加载的其它uiviewcontroller的view都是被添加在uitransitionview上（这是一个私有api），uitransitionview在self.view的0层，uitabbar在的第一层。

所以我的思路是这样的：

uitransitionview与uitabbar转移到一个新的view1上去，作为滑动的部分；

在view1与self.view之间再添加一个view2，作为菜单的容器；

给view1添加相应的手势响应；

代码：

#import <uikit/uikit.h>
@protocol slidetab_vc_tcvdelegate <nsobject>
@optional
-(void)didopenmenu:(uiview*)menu;
-(void)didclosemenu:(uiview*)menu;
@end
@interface slidetab_vc : uitabbarcontroller
@property(strong, nonatomic)uiview *mmenuv;
@property(weak, nonatomic)id <slidetab_vc_tcvdelegate> mdelegate;
-(void)openmenu;
-(void)closemenu;
@end
#import "slidetab_vc.h"
#define device_w [uiscreen mainscreen].bounds.size.width
@interface slidetab_vc ()<uitabbardelegate>{
 cgfloat _centermaxx;
}
@property(strong, nonatomic)uiview *mtransitionview;
@property(strong, nonatomic)uitapgesturerecognizer *mtapgester;
@property(assign, nonatomic)bool mmenuisopen;
@property(strong, nonatomic)uitabbar *mtabbar;
@end
@implementation slidetab_vc
- (void)viewdidload {
 [super viewdidload];
 // do any additional setup after loading the view.
 self.view.backgroundcolor = [uicolor purplecolor];
 _mmenuisopen = no;
 _centermaxx = device_w*3/2-80.0f;
 [self initmtransitionview];
 [self addgestureformtransitionview];
}
#pragma mark 菜单懒加载
-(void)setmmenuv:(uiview *)mmenuv{
 if (mmenuv!=nil) {
  _mmenuv = mmenuv;
  [self.view insertsubview:_mmenuv atindex:0];
 }
}
#pragma mark 打开菜单
-(void)openmenu{
 cgpoint center = self.mtransitionview.center;
 center.x = _centermaxx;
 [uiview animatewithduration:0.15f animations:^{
  self.mtransitionview.center = center;
  if (_mdelegate != nil&& [_mdelegate respondstoselector:@selector(didopenmenu:)]) {
  [_mdelegate didopenmenu:_mmenuv];
 }
 }];
 [self mtransitionsubviewsenable:no];
}
#pragma mark 关闭菜单
-(void)closemenu{
 cgpoint center = self.mtransitionview.center;
 center.x = device_w/2;
 [uiview animatewithduration:0.15f animations:^{
  self.mtransitionview.center = center;
 } completion:^(bool finished) {
  [self mtransitionsubviewsenable:yes];
  if (_mdelegate != nil&& [_mdelegate respondstoselector:@selector(didclosemenu:)]) {
  [_mdelegate didclosemenu:_mmenuv];
 }
 }];
}
#pragma mark transition用户交互使能
-(void)mtransitionsubviewsenable:(bool)enable{
 for (uiview *tmp in self.mtransitionview.subviews) {
  tmp.userinteractionenabled = enable;
 }
 if (enable) {
  [self.mtransitionview removegesturerecognizer:_mtapgester];
 }else{
  [self.mtransitionview addgesturerecognizer:_mtapgester];
 }
}
#pragma mark 配置mtransitionview
-(void)initmtransitionview{
 for (uiview *tmp in self.view.subviews) {
  [tmp removefromsuperview];
  [self.mtransitionview addsubview:tmp];
 }
 [self.view addsubview:self.mtransitionview];
}
#pragma mark 拖动手势动作
-(void)panaction:(uipangesturerecognizer*)pan{
 cgpoint location = [pan translationinview:pan.view.superview];
 cgpoint center = self.mtransitionview.center;
 if (pan.state==uigesturerecognizerstateended) {
  if (center.x<_centermaxx*0.5+device_w*0.25){
   [self closemenu];
  }else{
   [self openmenu];
  }
 }else if(pan.state==uigesturerecognizerstatechanged){
  if (location.x<0) {//向左滑
   center.x = center.x+location.x<=device_w/2? device_w/2 : center.x+location.x;
  }else{
   center.x = center.x+location.x>=_centermaxx? _centermaxx : center.x+location.x;
  }
  self.mtransitionview.center = center;
  [pan settranslation:cgpointmake(0, 0) inview:pan.view.superview];
 }
}
#pragma mark 添加手势
-(void)addgestureformtransitionview{
 uipangesturerecognizer *pan = [[uipangesturerecognizer alloc]initwithtarget:self action:@selector(panaction:)];
 [_mtransitionview addgesturerecognizer:pan];
 _mtapgester = [[uitapgesturerecognizer alloc]initwithtarget:self action:@selector(tapaction)];
}
#pragma mark--懒加载
-(uiview *)mtransitionview{
 if (_mtransitionview==nil) {
  _mtransitionview = [[uiview alloc]initwithframe:self.view.bounds];
 }
 return _mtransitionview;
}
-(void)tapaction{
 cgfloat x = _mtransitionview.center.x;
 if (x>=_centermaxx) {
  [self closemenu];
 }
}
@end

总结

以上所述是小编给大家介绍的ios中仿qq侧滑菜单功能，希望对大家有所帮助