.h文件：

#import <Foundation/Foundation.h>
typedef enum{
    QFRed,
    QFYellow,
    QFBlue
}QFViewColor;

@interface QFview : UIView
+(id)viewWithColor:(QFViewColor)QFViewColorType;
@end

.m文件：

+(id)viewWithColor:(QFViewColor)QFViewColorType{
    UIView *view = [[UIView alloc] init];
    switch (QFViewColorType) {
        case QFRed:
            view.backgroundColor=[UIColor redColor];
            break;
        case QFYellow:
            view.backgroundColor=[UIColor yellowColor];
            break;
        case QFBlue:
            view.backgroundColor=[UIColor blueColor];
            break;
        default:
            view.backgroundColor=[UIColor whiteColor];
            break;
    }
    return view;
}

利用工厂模式显示view视图

    UIView *rootView = [[UIView alloc] initWithFrame:CGRectMake(50, 50, 300, 300)];
    rootView.backgroundColor = [UIColor whiteColor];
    
    rootView.clipsToBounds = YES;
    //切割视图外部的东西
    
    UIView *redView = [QFview viewWithColor:QFRed];
    redView.frame = CGRectMake(0, 0, 200, 200);
    [rootView addSubview:redView];
    redView.alpha = 1;
    
    UIView *yellowView = [QFview viewWithColor:QFYellow];
    yellowView.frame = CGRectMake(50, 50, 150, 150);
    yellowView.alpha = 1;
    [rootView addSubview:yellowView];
    
    UIView *blueView = [QFview viewWithColor:QFBlue];
    blueView.frame = CGRectMake(100, 100, 100, 100);
    [rootView addSubview:blueView];
    

图片显示：

对视图进行层次化操作：

    //[rootView bringSubviewToFront:redView];
    //[rootView sendSubviewToBack:blueView];
    
    NSArray *rootViewSubviews = rootView.subviews;
    int yellowIndex = [rootViewSubviews indexOfObject:yellowView];
    int redIndex = [rootViewSubviews indexOfObject:redView];
    
    //[rootView exchangeSubviewAtIndex:yellowIndex withSubviewAtIndex:redIndex];
    /* 将红色 黄色调换 */
    
    UIView *greenView = [[UIView alloc] initWithFrame:CGRectMake(150, 150, 50, 50)];
    greenView.backgroundColor = [UIColor greenColor];
    [rootView insertSubview:greenView aboveSubview:blueView];
    
    [self.window addSubview:rootView];

设置视图内的按键不可用

    UIButton *button = [UIButton buttonWithType:UIButtonTypeContactAdd];
    button.frame = CGRectMake(50, 50, 50, 50);
    button.enabled = NO; //设置按键不可用
    [rootView addSubview:button];

rootView.userInteractionEnabled = NO;
    //设置按键无法按下

制作动画：

代码如下：

    UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 40, 300, 200)];
    imageView.backgroundColor = [UIColor redColor];
    //imageView.contentMode = UIViewContentModeScaleToFill;
    imageView.contentMode = UIViewContentModeScaleAspectFill;
    imageView.animationDuration = 1.5;
    //速度多少秒
    NSMutableArray *images = [NSMutableArray array];
    for (int i=1; i<=13; ++i) {
        [images addObject:[UIImage imageNamed:[NSString stringWithFormat:@"png%d", i]]];
    
    }
    imageView.animationImages = images;
    //imageView.animationRepeatCount = 2;
    //图片重复多少次
    [imageView startAnimating];
    [self.window addSubview:imageView];

按钮可以换界面了、做四个界面每，按不同按钮切换不同界面：

代码：

#import "Xib.h"

@interface Xib ()
@property (weak, nonatomic) IBOutlet UIButton *button1;
@property (weak, nonatomic) IBOutlet UIButton *button2;
@property (weak, nonatomic) IBOutlet UIButton *button3;
@property (weak, nonatomic) IBOutlet UIButton *button4;
@property (weak, nonatomic) IBOutlet UIView *menuView;
-(void)showRedView;
-(void)showYellowView;
-(void)showBlueView;
-(void)showGreenView;
@end

@implementation Xib
{
    UIView *redView;
    UIView *yellowView;
    UIView *blueView;
    UIView *greenView;
}

- (IBAction)selected_one:(id)sender {
    _button1.selected = NO;
    _button2.selected = NO;
    _button3.selected = NO;
    _button4.selected = NO;

UIButton *btn = sender;
    NSLog(@"点击：%d",btn.tag);

btn.selected = YES;
    switch (btn.tag) {
        case 0:
            [self showRedView];
            break;
        case 1:
            [self showYellowView];
            break;
        case 2:
            [self showBlueView];
            break;
        case 3:
            [self showGreenView];
            break;
    }
}

-(void)showRedView{
    if (redView == nil) {
        redView = [[UIView alloc] initWithFrame:self.view.frame];
        redView.backgroundColor = [UIColor redColor];
        UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 50)];
        label.text = @"The first page";
        [redView addSubview:label];
        [self.view addSubview:redView];
    }
    [self.view bringSubviewToFront:redView];
    [self.view bringSubviewToFront:self.menuView];
}

-(void)showYellowView
{
    if (yellowView == nil) {
        yellowView = [[UIView alloc] initWithFrame:self.view.frame];
        yellowView.backgroundColor = [UIColor yellowColor];
        UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 50)];
        label.text = @"The second page";
        [yellowView addSubview:label];
        [self.view addSubview:yellowView];
    }
    [self.view bringSubviewToFront:yellowView];
    [self.view bringSubviewToFront:self.menuView];
}
-(void)showBlueView
{
    if (blueView == nil) {
        blueView = [[UIView alloc] initWithFrame:self.view.frame];
        blueView.backgroundColor = [UIColor blueColor];
        UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 50)];
        label.text = @"The third page";
        [blueView addSubview:label];
        [self.view addSubview:blueView];
    }
    [self.view bringSubviewToFront:blueView];
    [self.view bringSubviewToFront:self.menuView];
}
-(void)showGreenView
{
    if (greenView == nil) {
        greenView = [[UIView alloc] initWithFrame:self.view.frame];
        greenView.backgroundColor = [UIColor greenColor];
        UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 50)];
        label.text = @"The forth page";
        [greenView addSubview:label];
        [self.view addSubview:greenView];
    }
    [self.view bringSubviewToFront:greenView];
    [self.view bringSubviewToFront:self.menuView];
}

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.menuView.backgroundColor=[UIColor clearColor];
    // Do any additional setup after loading the view from its nib.
}