[IOS]通过子view控制tab的页面转换

-(void)setSelectButton:(UIButton*)sender{
    
    if(sender == _btPayQR && ![_btPayQR isSelected]){

        [_btPayScan setBackgroundColor:[UIColor whiteColor]];
        [_bgView setBackgroundColor:[UIColor whiteColor]];
        [_btPayScan setSelected:false];
        [_btTranSporttation setSelected:false];

        [sender setBackgroundColor:[[UIColor alloc] initWithRed:115/255.0 green:115/255.0 blue:115/255.0 alpha:1]];
        [sender setSelected:YES];

        [self addChildViewWithStoryboardName:@"PToM" identifier:@"PGPToMQRCodeViewController"];
    }else if(sender == _btPayScan && ![_btPayScan isSelected]){
        [_btPayQR setBackgroundColor:[UIColor whiteColor]];
        [_bgView setBackgroundColor:[UIColor whiteColor]];
        [_btPayQR setSelected:false];
        [_btTranSporttation setSelected:false];

        [sender setBackgroundColor:[[UIColor alloc] initWithRed:115/255.0 green:115/255.0 blue:115/255.0 alpha:1]];
        [sender setSelected:YES];

        [self addChildViewWithStoryboardName:@"PToM" identifier:@"PGPToMScanViewController"];

 在当前页面做tab的翻页

不同的按钮点击就显示不同的内容

- (void)addChildViewWithStoryboardName:(NSString *)storyboardName identifier:(NSString *)identifier {
    
    if ([self.subView.subviews count] != 0) {
        [self.subView.subviews[0] removeFromSuperview];
    }
    
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:storyboardName bundle:nil];
    PGBaseViewController *controller = [storyboard instantiateViewControllerWithIdentifier:identifier];
    [self addChildViewController:controller];
    [controller.view setBackgroundColor:[UIColor clearColor]];
    [controller.view setFrame:self.subView.bounds];
    [self.subView addSubview:controller.view];
}

 清空subview数组并加载子页面