iOS自定義控制器側滑半屏顯示

第三方庫

RESideMenu

自定義側滑半屏顯示

-(id)initWithLeftVC:(UIViewController )leftVC mainVC:(UIViewController )mainVC rightVC:(UIViewController *)rightVC
{
self = [super init];

if(self)
{
    [self.view addSubview:leftVC.view];
    [self.view addSubview:rightVC.view];
    [self.view addSubview:mainVC.view];

    //viewController  想執行vc生命週期方法 必須把當前的VC加入到管理VC裏

    //事件響應鏈

    [self addChildViewController:leftVC];
    [self addChildViewController:mainVC];
    [self addChildViewController:rightVC];

    self.leftVC = leftVC;
    self.rightVC = rightVC;

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

    [mainVC.view addGestureRecognizer:pan];
}

return self;

}

-(void)panHandle:(UIPanGestureRecognizer *)p
{
//[p locationInView:self.view];
CGPoint point = [p translationInView:self.view];

p.view.center = CGPointMake(p.view.center.x + point.x, p.view.center.y);

[p setTranslation:CGPointZero inView:self.view];

if(p.view.frame.origin.x > 0)
{
    self.leftVC.view.hidden = NO;
    self.rightVC.view.hidden = YES;
}
else
{
    self.leftVC.view.hidden = YES;
    self.rightVC.view.hidden = NO;
}

//120  --->  240
if(p.state == UIGestureRecognizerStateEnded)
{
    NSInteger x_offset = 0;
    if(p.view.frame.origin.x >= 150)
    {
        x_offset = [UIScreen mainScreen].bounds.size.width / 2.0f + 240;
    }
    else if(p.view.frame.origin.x <= -150)
    {
        x_offset = [UIScreen mainScreen].bounds.size.width / 2.0f - 240;
    }
    else
    {
        x_offset = [UIScreen mainScreen].bounds.size.width / 2.0f;
    }

    [UIView animateWithDuration:0.25 animations:^{
        p.view.center = CGPointMake(x_offset, p.view.center.y);
    }];
}

}