类似qq的左滑菜单栏简单实现

代码托管到了Github https://github.com/cyuanyang/YYSlideView

主演实现代码：

1.滑动的viewController的初始化主要view

-(instancetype)initWithSlideView:(YYBaseSlideView * )view{
    self = [super init];

    if (self) {
        self.slideView = view;
    }

    return self;
}

-(void)viewDidLoad{
    [super viewDidLoad];

    _state = SlideViewStateClosed;
    [self.view addSubview:_slideView];

    self.mainView = [[UIView alloc]initWithFrame:self.view.frame];

    _mainView.backgroundColor = [UIColor whiteColor];

    [self.view addSubview:_mainView];

    [self.mainView addSubview:[self loadMainView]];

    UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(panAction:)];

    [self.view addGestureRecognizer:pan];

    if (Is_Show_Cover) {
        self.coverView = [[UIView alloc]initWithFrame:self.view.frame];
        _coverView.backgroundColor = [UIColor blackColor];
        _coverView.alpha = 0.0;
        [self.mainView addSubview:_coverView];
        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction)];
        [_coverView addGestureRecognizer:tap];

        [_mainView insertSubview:[self loadMainView] belowSubview:_coverView];
    }else{
        [_mainView addSubview:[self loadMainView]];
    }

}

2.监听手势的处理方法

-(void)panAction:(UIPanGestureRecognizer *)pan{
    static CGFloat beginX = -;
    CGPoint point = [pan locationInView:self.view];
    if(pan.state == UIGestureRecognizerStateBegan) {
        beginX = point.x;
    }else if(pan.state == UIGestureRecognizerStateEnded){
        beginX = -;
        if (_mainView.frame.origin.x < AUTO_X) {
            [self autoAnim:NO];
        }else{
            [self autoAnim:YES];
        }

        if (_mainView.frame.origin.x == ) {
             _state = SlideViewStateClosed;
             [self showOrHideCover:NO];
        }else if(_mainView.frame.origin.x == _slideView.slideWidth){
            _state = SlideViewStateOpened;
             [self showOrHideCover:YES];
        }
    }else if (pan.state == UIGestureRecognizerStateChanged){
        CGFloat detlaX = ;
        if (_state == SlideViewStateClosed) {

            detlaX = point.x - beginX;

        }else if(_state == SlideViewStateOpened){
            detlaX =_slideView.slideWidth + point.x - beginX;
        }

        CGRect mainRect = _mainView.frame;
        mainRect.origin.x = detlaX;
        if (mainRect.origin.x >=_slideView.slideWidth) {
            mainRect.origin.x = _slideView.slideWidth;
        }else if (mainRect.origin.x <=){
            mainRect.origin.x  = ;
        }

        _mainView.frame = mainRect;

        CGRect slideRect = _slideView.frame;
        slideRect.origin.x = detlaX/  - _slideView.slideWidth/;
        if (slideRect.origin.x >=) {
            slideRect.origin.x = ;
        }else if (slideRect.origin.x <= -_slideView.slideWidth/){
            slideRect.origin.x  = -_slideView.slideWidth/;
        }
        _slideView.frame = slideRect;
    }
}

3.自动滚动的方法：

/*
 * open or close
 */
-(void)autoAnim:(BOOL)isOpen{
    [UIView animateWithDuration:ANIM_DUR delay: options:UIViewAnimationOptionCurveLinear animations:^{
        CGRect mainRect = _mainView.frame;
        CGRect slideRect = _slideView.frame;
        if (isOpen) {
            mainRect.origin.x = _slideView.slideWidth;
            slideRect.origin.x = ;
            _state = SlideViewStateOpening;
        }else{
            mainRect.origin.x = ;
            slideRect.origin.x = -_slideView.slideWidth/;
            _state = SlideViewStateClosing;
        }
        _mainView.frame = mainRect;
        _slideView.frame = slideRect;
    } completion:^(BOOL finished) {

        if (isOpen) {
            _state = SlideViewStateOpened;
        }else{
            _state = SlideViewStateClosed;
        }
    }];
}

4.自定义的左边的view

-(instancetype)initWithWidth:(CGFloat)width{
    CGRect rect = CGRectMake(-width/, , width, H);
    self = [super initWithFrame:rect];

    if (self) {
        _slideWidth = width;
        [self initView];
    }

    return  self;
}

///子类重写回调
-(void)initView{

}

OK！！！