Question

您好我是ios的新手，在我的应用中我使用.xib文件加载UIView

当我点击第一个按钮时，我想加载FirstView并删除其他视图当我点击第二个按钮我想加载SecondView并删除其他视图当我点击第三个按钮我想加载ThirdView并删除其他视图

mycode的： -

RadGridView radGridView1 = new RadGridView();
this.Controls.Add(radGridView1);
radGridView1.Dock = DockStyle.Fill;

DataTable table = new DataTable();
table.Columns.Add("col1");
table.Columns.Add("col2");
table.Rows.Add("value1", "value1");
table.Rows.Add("value2", "value2");

radGridView1.DataSource = table;

Answer 1

尝试这段代码：我编写了视图代码，在添加新代码之前删除了以前的视图。

#import "ViewController.h"

@interface ViewController ()
{
    FirstView * test1;
    SecondView * test2;
    ThirdView * test3;
}

@end

@implementation ViewController
@synthesize leftView,rightView;

- (void)viewDidLoad {
    [super viewDidLoad];


    test1 = [[[NSBundle mainBundle] loadNibNamed:@"FirstView" owner:self options:nil] objectAtIndex:0];
    test2 = [[[NSBundle mainBundle] loadNibNamed:@"SecondView" owner:self options:nil] objectAtIndex:0];
    test3 = [[[NSBundle mainBundle] loadNibNamed:@"ThirdView" owner:self options:nil] objectAtIndex:0];

}

- (IBAction)FirstAction:(id)sender {

   test1.frame = CGRectMake(0, 0, rightView.frame.size.width, rightView.frame.size.height);
    test1.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
    [self removePreviousView:test1 FromSuperView:rightView];
    [rightView addSubview:test1];
}

- (IBAction)SecondAction:(id)sender {

    test2.frame = CGRectMake(0, 0, rightView.frame.size.width, rightView.frame.size.height);
    test2.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
    [self removePreviousView:test2 FromSuperView:rightView];
    [rightView addSubview:test2];
}

- (IBAction)ThirdAction:(id)sender {

    test3.frame = CGRectMake(0, 0, rightView.frame.size.width, rightView.frame.size.height);
    test3.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
    [self removePreviousView:test3 FromSuperView:rightView];
    [rightView addSubview:test3];
}


- (void)removePreviousView:(UIView*)previousView FromSuperView:(UIView*)view{
    for (UIView *subView in view.subviews) {
        if (![subView isKindOfClass:[previousView class]]) {
            [subView removeFromSuperview];
        }
    }
}
@end

Answer 2

<强> 1）使视图全局

FirstView * test1;
SecondView * test2;
ThirdView * test3;

随时从superview中删除：

[test1 removeFromSuperView];

2）添加标记到视图

test1.tag = 10;

使用标记值删除视图：

[(UIView*)[rightView  viewWithTag:10] removeFromSuperview];

Answer 3

使用此代码。它包含一个loadXib:调用，它使用给定的名称从nib加载视图并返回它。

@interface ViewController ()
{
    FirstView * test1;
    SecondView * test2;
    ThirdView * test3;
}

@end

@implementation ViewController
@synthesize leftView,rightView;

- (void)viewDidLoad {
    [super viewDidLoad];
}

-(UIView*)loadXib:(NSString *)name
{
    UINib *nib = [UINib nibWithNibName:name bundle:nil];
    if (nib != nil)
    {
        NSArray *items = [nib instantiateWithOwner:self options:nil];
        if (items != nil && items.count == 1)
        {
            return (UIView*)items[0];
        }
    }
    return nil;
}

- (IBAction)FirstAction:(id)sender {

//   test1 = [[FirstView alloc]initWithFrame:CGRectMake(0, 0, rightView.frame.size.width, rightView.frame.size.height)];
    test1 = (FirstView*)[self loadXib:@"FirstView"];
    if (test1 != nil) {
        test1.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
        [rightView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
        [rightView addSubview:test1];
    }
}

- (IBAction)SecondAction:(id)sender {

//    test2 = [[SecondView alloc]initWithFrame:CGRectMake(0, 0, rightView.frame.size.width, rightView.frame.size.height)];
    test2 = (SecondView*)[self loadXib:@"SecondView"];
    if (test2 != nil) {
        test2.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
[rightView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
            [rightView addSubview:test2];
        }
    }

- (IBAction)ThirdAction:(id)sender {

//    test3 = [[ThirdView alloc]initWithFrame:CGRectMake(0, 0, rightView.frame.size.width, rightView.frame.size.height)];
    test3 = (ThirdView*)[self loadXib:@"ThirdView"];
    if (test3 != nil ) {
        test3.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
[rightView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
            [rightView addSubview:test3];
        }
    }

    @end

Answer 4

以下是您需要的方法。

/ *没有标签* /

- (void)removeSubviewsExpectView:(id)viewClass {

    for (UIView *subView in self.view.subviews) {

         if (![subView isKindOfClass:[viewClass class]]) {

                [subView removeFromSuperview];

        }
    }

}

/ *带标签* /

- (void)removeSubviewsExpectView:(int)viewTag {

    for (UIView *subView in self.view.subviews) {

        if (subView.tag != viewTag) {

            [subView removeFromSuperview];

        }
    }

}

希望这可以帮助你。

Answer 5

首先，您在 NSBundle 中创建UiView IBOutlets ，然后选择此方法

- (IBAction)FirstAction:(id)sender {
    NSArray *viewsToRemove = [rightView subviews];
    for (UIView *v in viewsToRemove) {
     [v removeFromSuperview];
     }
  UIView *firstViewUIView = [[[NSBundle mainBundle]   loadNibNamed:@"Test1" owner:self options:nil] firstObject];
   [rightView containerView addSubview:firstViewUIView];
}

- (IBAction)SecondAction:(id)sender {

       NSArray *viewsToRemove = [rightView subviews];
       for (UIView *v in viewsToRemove) {
         [v removeFromSuperview];
      }
       UIView *secondView = [[[NSBundle mainBundle]   loadNibNamed:@"Test2" owner:self options:nil] firstObject];
      [rightView containerView addSubview:seconView];  
}

- (IBAction)ThirdAction:(id)sender {

         NSArray *viewsToRemove = [rightView subviews];
         for (UIView *v in viewsToRemove) {
          [v removeFromSuperview];
                   }
            UIView *thirdView = [[[NSBundle mainBundle]   loadNibNamed:@"Test3" owner:self options:nil] firstObject];
           [rightView containerView addSubview:thirdView];

}

如何在ios中的ViewController上加载.xib UI视图

mycode的： -

5 个答案: