如何在iOS中的ViewController上加載.xib UIviews

Question

嗨，我是ios的新手，在我的應用中，我使用.xib文件加載UIView

當我單擊第一個按鈕時，我想加載FirstView並刪除otherviews當我單擊第二個按鈕時，我想加載SecondView並刪除otherviews，當我單擊第三個按鈕時，我想加載ThirdView並刪除otherviews

mycode的： -

#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

嘗試這段代碼：我已經為view編寫了代碼，它將在添加新視圖之前刪除先前的視圖。

#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

1）將視圖設為全局

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

隨時從超級視圖中刪除：

[test1 removeFromSuperView];

2）添加標簽以查看

test1.tag = 10;

使用標簽值刪除視圖：

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

Answer 3

使用此代碼。 它包含一個loadXib:調用，該調用從具有給定名稱的筆尖加載視圖並返回視圖。

@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。

/ *不帶標簽* /

- (void)removeSubviewsExpectView:(id)viewClass {

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

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

                [subView removeFromSuperview];

        }
    }

}

/ *帶標簽* /

- (void)removeSubviewsExpectView:(int)viewTag {

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

        if (subView.tag != viewTag) {

            [subView removeFromSuperview];

        }
    }

}

希望這可以幫助你。

Answer 5

首先，您在NSBundle中創建UiView IBOutlets ，然后選擇此方法

- (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];

}