如何在 ios 中的 ViewController 上加载 .xib UIview

Question

嗨，我是 ios 的新手，在我的应用程序中，我正在使用 .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单击第二个按钮时，我想加载 SecondView 并删除其他视图当我单击第三个按钮时，我想加载 ThirdView 并删除其他视图

我的代码：-

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
@synthesize leftView,rightView;

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

- (IBAction)FirstAction:(id)sender {

    FirstView * test1 = [[FirstView alloc]initWithFrame:CGRectMake(0, 0, rightView.frame.size.width, rightView.frame.size.height)];
    test1.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
    [rightView addSubview:test1];
}

- (IBAction)SecondAction:(id)sender {

    SecondView * test2 = [[SecondView alloc]initWithFrame:CGRectMake(0, 0, rightView.frame.size.width, rightView.frame.size.height)];
    test2.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
    [rightView addSubview:test2];
}

- (IBAction)ThirdAction:(id)sender {

    ThirdView * test3 = [[ThirdView alloc]initWithFrame:CGRectMake(0, 0, rightView.frame.size.width, rightView.frame.size.height)];
    test3.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
    [rightView addSubview:test3];
}

@end

Answer 1

1) 使视图全局化

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

随时从超级视图中删除：

[test1 removeFromSuperView];

2) 添加标签查看

test1.tag = 10;

使用标记值删除视图：

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

Answer 2

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];

        }
    }

}

希望对您有所帮助。

Answer 3

试试这段代码：我已经为视图编写了代码，它将在添加新视图之前删除以前的视图。

#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 4

首先你在 NSBundle[=18 中创建 UiView IBOutlets =]那你就选择这个方法

- (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]; }

Answer 5

使用此代码。它包含一个 loadXib: 调用，该调用使用给定名称和 returns 从笔尖加载视图。

@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

如何在 ios 中的 ViewController 上加载 .xib UIview

How to load .xib UIviews on ViewController in ios

objective-c

xib

ios

我的代码：-