测试

#pragma mark - 创建滚动视图
- (UIScrollView *)mainScrollView {
    if (!_mainScrollView) {
        _mainScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, self.headerView.bottom, PhoneScreen_WIDTH, PhoneScreen_HEIGHT-64-44)];
        _mainScrollView.pagingEnabled = YES;
        _mainScrollView.delegate = self;
        _mainScrollView.bounces = NO;
        _mainScrollView.showsHorizontalScrollIndicator = NO;
        _mainScrollView.showsVerticalScrollIndicator = NO;
        _mainScrollView.backgroundColor = [UIColor orangeColor];
        _mainScrollView.contentSize = CGSizeMake(PhoneScreen_WIDTH *ButtonCount, _mainScrollView.height);
    }
    return _mainScrollView;
}