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，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！

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