带开关控制器的开关2视图

Question

这是主视图，我想切换两个独立的视图；打开状态和关闭状态。

代码看起来会是什么样子？

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Answer 1

执行以下操作

  - (void)viewDidLoad //of mainViewController {
        //do viewController1 alloc init     // Gray Color
        [self.view addSubview:viewController1.view];

        //do viewController2 alloc init     //Red Color
        [self.view addSubview:viewController2.view];

        [viewController2.view setHidden:YES];
    }

//assign this method to segmented controls' valueChanged event
    - (IBAction)segmentControlClicked:(id)sender {
        UISegmentedControl *segmentedControl = (UISegmentedControl *)sender; // if segmented control is not declared as an IBOutlet
        if (segmentedControl.selectedSegmentIndex == 0) {
            [viewController1.view setHidden:NO];
            [viewController2.view setHidden:YES];
        }
        else if (segmentedControl.selectedSegmentIndex == 1) {
            [viewController2.view setHidden:NO];
            [viewController1.view setHidden:YES];
        }
    }

确保'y‘原点viewController1和viewController2位于分段控件的下方，以便分段控件不会被隐藏。

Answer 2

您可以在xib中获取两个视图，并在视图did加载时在主视图中添加这两个视图，并为您不想显示的视图设置隐藏属性，然后为开关控制事件设置隐藏属性TRUE或FALSE。

Answer 3

请尝试以下操作

- (IBAction)segmentControlClicked:(id)sender {
    if (!viewController1) {
        //do alloc init
    }
    if (!viewController2) {
        //do alloc init
    }

    UISegmentedControl *segmentedControl = (UISegmentedControl *)sender;
    if (segmentedControl.selectedSegmentIndex == 0) {
        [viewController1.view setHidden:NO];
        [viewController2.view setHidden:YES];
    }
    else if (segmentedControl.selectedSegmentIndex == 1) {
        [viewController2.view setHidden:NO];
        [viewController1.view setHidden:YES];
    }
}