iOS OC的基本视图创建-UIView

最新推荐文章于 2024-04-26 09:19:43 发布

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最新推荐文章于 2024-04-26 09:19:43 发布

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分类专栏： iOS 文章标签： iOS UIView

本文链接：https://blog.youkuaiyun.com/zhjw1991/article/details/80391099

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本文详细介绍了在iOS开发中如何创建基本的UIView。通过查看.h文件和在父视图.m文件中的引用，理解UIView的实例化过程，是iOS界面构建的基础。

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1.一般UIView 创建
    UIView *cellView = [[UIView alloc] init];
    [superView addSubview:cellView];
    cellView.layer.cornerRadius = 25*ViewW;
    cellView.backgroundColor = RGB(255,255,255,0.28);
    [cellView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.size.mas_equalTo(CGSizeMake(320*ViewW, 50*ViewW));
        make.centerX.mas_equalTo(superView.mas_centerX);
        make.top.mas_equalTo(topView.mas_top).mas_offset(topS);
    }];

2.自定义UIView 创建
.m文件

#import "Custom.h"

@interface Custom()
{
}
@end

@implementation Custom
//初始化
-(id)initWithDelegate:(id<CustomDelegate>)delegate SuperView:(UIView *)superView{
    self = [super initWithFrame:superView.frame];
    if (self) {
        _delegate = delegate;
        [superView addSubview:self];
        //初始化代码
        [self creatSubViews];
    }
    return self;
}
//创建子视图
-(void)creatSubViews{

}

.h文件

//
//  CustomView.h
// 
//
//  Created by 周家稳 on 2018/4/26.
//  Copyright © 2018年 zhoujiawen. All rights reserved.
//

#import <UIKit/UIKit.h>

@protocol CustomViewDelegate <NSObject> // 代理传值方法

@end

@interface CustomView : UIView

@property (weak, nonatomic) id<CustomViewDelegate> delegate;
//初始化
-(id)initWithDelegate:(id<CustomViewDelegate>)delegate SuperView:(UIView *)superView;



@end

在引用的父视图的.m文件

//
//
//  Created by 周家稳 on 2018/4/26.
//  Copyright © 2018年 zhoujiawen. All rights reserved.
//

#import "CustomViewController"

@interface CustomViewController ()<CustomViewDelegate>
{
    CustomView * Custom;
}
@end

@implementation CustomViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    Custom = [[CustomView alloc] initWithDelegate:self SuperView:self.view];
}