之前写过ios动态创建控件及添加事件，纯手工代码写控件，虽然比较灵活，但是就是代码量比较多。这次我们通过xib来创建app下载列表项 AppView.xib。一个imageview,一个label,一个button构成
1.创建AppView.xib
2.再创建xib对应的mode，AppView.h 继承至UIView
实现效果如下：
3.xib页面设计好了之后，将控件拖入AppView.h
objectivec
//
// AppView.h
// iosstudy2024
//
// Created by figo on 2025/2/10.
//
#import <UIKit/UIKit.h>
NS_ASSUME_NONNULL_BEGIN
@interface AppView : UIView
@property (weak, nonatomic) IBOutlet UIImageView *iconImg;
@property (weak, nonatomic) IBOutlet UILabel *appName;
@property (weak, nonatomic) IBOutlet UIButton *btnDownload;
@end
NS_ASSUME_NONNULL_END4.列表配置文件icons.plist
XML
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<array>
<dict>
<key>name</key>
<string>deepseek</string>
<key>icon</key>
<string>diamond</string>
</dict>
<dict>
<key>name</key>
<string>文心一言</string>
<key>icon</key>
<string>star</string>
</dict>
<dict>
<key>name</key>
<string>豆包</string>
<key>icon</key>
<string>grape</string>
</dict>
<dict>
<key>name</key>
<string>deepseek</string>
<key>icon</key>
<string>watermenon</string>
</dict>
<dict>
<key>name</key>
<string>deepseek</string>
<key>icon</key>
<string>diamond</string>
</dict>
<dict>
<key>name</key>
<string>deepseek</string>
<key>icon</key>
<string>diamond</string>
</dict>
<dict>
<key>name</key>
<string>deepseek</string>
<key>icon</key>
<string>diamond</string>
</dict>
<dict>
<key>name</key>
<string>deepseek</string>
<key>icon</key>
<string>diamond</string>
</dict>
<dict>
<key>name</key>
<string>deepseek</string>
<key>icon</key>
<string>diamond</string>
</dict>
</array>
</plist>5.添加控制器AppDownloadViewController.m
objectivec
//
// AppDownloadViewController.m
// iosstudy2024
//
// Created by figo on 2025/2/10.
//
#import "AppDownloadViewController.h"
#import "AppView.h"
@interface AppDownloadViewController ()
@property (nonatomic,strong) NSArray *iconArray;
@end
@implementation AppDownloadViewController
- (NSArray *)iconArray{
if(_iconArray==nil){
NSString *path=[[NSBundle mainBundle]pathForResource:@"icons.plist" ofType:nil];
_iconArray=[NSArray arrayWithContentsOfFile:path];
}
return _iconArray;
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
//[self initApp];
[self initAppUseXib];
}
-(void) initApp{
// Do any additional setup after loading the view from its nib.
NSUInteger count=self.iconArray.count;
NSBundle *boundle=[NSBundle mainBundle];
for(int a=0;a<count;a++){
//添加外边框
UIView *uiView=[UIView new];//new的方式
uiView.backgroundColor=[UIColor blueColor];
CGFloat x=50+(a%3)*(75+10);
CGFloat y=50+(a/3)*(100+10);
uiView.frame=CGRectMake(x, y, 75, 100);//x,y,w,h
//外边框内部添加图片
UIImageView *uiImageView=[UIImageView new];
uiImageView.backgroundColor=[UIColor greenColor];
CGFloat iconW=45;
CGFloat iconH=45;
CGFloat x1=(uiView.frame.size.width-iconW)*0.5;//相对坐标
CGFloat y1=0;//相对坐标
uiImageView.frame=CGRectMake(x1, y1, iconW, iconH);//x,y,w,h
NSDictionary *dictionary=self.iconArray[a];
// NSString *imgPath = [NSString stringWithFormat:@"%@/%@.jpg", [[NSBundle mainBundle] resourcePath], dictionary[@"icon"]];
NSString *imgPath=[[NSBundle mainBundle]pathForResource:dictionary[@"icon"] ofType:@".jpeg"];
//照片拖入Assets.xcassets文件夹会找不到资源，注意需要项目下新建group命名为Supporting Files，再项目外新建文件夹比如icons，然后将图片放入icons,再将icons文件夹拖入Supporting Files才能找到，否则返回nil
UIImage *uiImage=[UIImage imageWithContentsOfFile:imgPath];//imageWithContentsOfFile不会缓存，每次都重新加载图片
// UIImage *uiImage=[UIImage imageNamed:dictionary[@"icon"]];//imageNamed会缓存,照片拖入Assets.xcassets文件夹即可，图片非常多，会占用很多内存
uiImageView.image=uiImage;
[uiView addSubview:uiImageView];
//外边框内部标题
UILabel *uiLabel=[UILabel new];
uiLabel.backgroundColor=[UIColor yellowColor];
CGFloat labelW=uiView.frame.size.width;
CGFloat labelH=20;
CGFloat x2=0;//相对坐标
CGFloat y2=uiImageView.frame.size.height+5;//相对坐标
uiLabel.frame=CGRectMake(x2, y2, labelW, labelH);//x,y,w,h
uiLabel.text=dictionary[@"name"];
[uiLabel setTextAlignment:NSTextAlignmentCenter];
[uiView addSubview:uiLabel];
//外边框内部添加按钮
UIButton *uiButton=[UIButton new];
uiButton.backgroundColor=[UIColor redColor];
CGFloat buttonW=55;
CGFloat buttonH=20;
CGFloat x3=(75-55)*0.5;//相对坐标
CGFloat y3=uiImageView.frame.size.height+uiLabel.frame.size.height+5+5;//相对坐标
uiButton.frame=CGRectMake(x3, y3, buttonW, buttonH);//x,y,w,h
[uiButton setTitle:@"下载" forState:UIControlStateNormal];
[uiButton addTarget:self action:@selector(onclick:) forControlEvents:UIControlEventTouchUpInside];
uiButton.tag=a;
[uiView addSubview:uiButton];
[self.view addSubview:uiView];
}
}
-(void) initAppUseXib{
// Do any additional setup after loading the view from its nib.
NSUInteger count=self.iconArray.count;
NSBundle *boundle=[NSBundle mainBundle];
for(int a=0;a<count;a++){
//添加外边框
//通过xib文件获取的方式
AppView *uiView=[[boundle loadNibNamed:@"AppView" owner:nil options:nil]lastObject];
uiView.backgroundColor=[UIColor purpleColor];
CGFloat x=50+(a%3)*(75+10);
CGFloat y=50+(a/3)*(100+10);
uiView.frame=CGRectMake(x, y, 75, 100);//x,y,w,h
//外边框内部添加图片
uiView.iconImg.backgroundColor=[UIColor greenColor];
NSDictionary *dictionary=self.iconArray[a];
NSString *imgPath=[[NSBundle mainBundle]pathForResource:dictionary[@"icon"] ofType:@".png"];
//照片拖入Assets.xcassets文件夹会找不到资源，注意需要项目下新建group命名为Supporting Files，再项目外新建文件夹比如icons，然后将图片放入icons,再将icons文件夹拖入Supporting Files才能找到，否则返回nil
UIImage *uiImage=[UIImage imageWithContentsOfFile:imgPath];//imageWithContentsOfFile不会缓存，每次都重新加载图片
// UIImage *uiImage=[UIImage imageNamed:dictionary[@"icon"]];//imageNamed会缓存,照片拖入Assets.xcassets文件夹即可，图片非常多，会占用很多内存
uiView.iconImg.image=uiImage;
//外边框内部标题
uiView.appName.backgroundColor=[UIColor yellowColor];
uiView.appName.text=dictionary[@"name"];
[uiView.btnDownload addTarget:self action:@selector(onclick:) forControlEvents:UIControlEventTouchUpInside];
uiView.btnDownload.tag=a;
[self.view addSubview:uiView];
}
}
-(void)onclick:(UIButton *)uiButton{
NSLog(@"%d点击下载",uiButton.tag);
}
@end6.SceneDelegate.m修改当前controller为AppDownloadViewController
objectivec
- (void)scene:(UIScene *)scene willConnectToSession:(UISceneSession *)session options:(UISceneConnectionOptions *)connectionOptions {
AppDownloadViewController * viewController = [[AppDownloadViewController alloc]init];
self.window.rootViewController=viewController;
}