• 自定义进度条(菜鸟版)


    下面是代码 , 部分有注解

    先创建一个类 

    #import <UIKit/UIKit.h>
    
    @interface MYjindutiao : UIView
    @property(strong,nonatomic)UIView *aview;
    @property(strong,nonatomic)UIView *bview;
    @property(strong,nonatomic)UILabel *laber;
    @property(strong,nonatomic)NSTimer *time;
    @property(assign,nonatomic)int  a;
    
    @end
    
    #import "MYjindutiao.h"
    
    @implementation MYjindutiao
    
    - (instancetype)initWithFrame:(CGRect)frame
    {
        self = [super initWithFrame:frame];
        if (self) {
            
            self.aview=[[UIView alloc]initWithFrame:CGRectMake(100, 100, 200, 30)];
            self.aview.backgroundColor=[UIColor colorWithRed:0.082 green:0.969 blue:1.000 alpha:1.000];
            //使它边角变圆
            self.aview.layer.cornerRadius=10;
            self.aview.layer.masksToBounds=YES;
            self.bview=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 0, 30)];
            self.bview.backgroundColor=[UIColor colorWithRed:0.020 green:1.000 blue:0.085 alpha:1.000];
            self.bview.layer.cornerRadius=10;
            self.bview.layer.masksToBounds=YES;
            self.laber=[[UILabel alloc]initWithFrame:CGRectMake(100, 200, 200, 200)];
            self.laber.backgroundColor=[UIColor colorWithRed:1.000 green:0.885 blue:0.050 alpha:1.000];
            //使laber变成球形
            self.laber.layer.cornerRadius=100;
            self.laber.layer.masksToBounds=YES;
            //字体居中
            self.laber.textAlignment=NSTextAlignmentCenter;
            //字体放大
            self.laber.font=[UIFont systemFontOfSize:40 weight:40];
            self.laber.textColor=[UIColor colorWithRed:0.957 green:0.950 blue:1.000 alpha:1.000];
            [self addSubview:self.aview];
            [self.aview addSubview:self.bview];
            [self addSubview: self.laber];
            self.time=[NSTimer scheduledTimerWithTimeInterval:0.01 target:self selector:@selector(change) userInfo:nil repeats:YES];
            [[NSRunLoop mainRunLoop] addTimer:self.time forMode:NSDefaultRunLoopMode];
            
            
            
        }
        return self;
    }
    
    
    -(void)change
    {
        CGRect chFrame=self.bview.frame;
        chFrame.size.width+=0.25;
        self.bview.frame=chFrame;
        self.laber.text=[NSString stringWithFormat:@"%.2f%%",self.bview.frame.size.width/2];
        if (self.bview.frame.size.width==self.a) {
            //清除定时器
            [self.time invalidate];
        }
        
    }
    
    @end
    
    #import <UIKit/UIKit.h>
    #import "MYjindutiao.h"
    @interface ViewController : UIViewController
    @property(strong,nonatomic)MYjindutiao *jindutiao;
    @end
    
    #import "ViewController.h"
    
    @interface ViewController ()
    
    @end
    
    @implementation ViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        
        self.jindutiao=[[MYjindutiao alloc]initWithFrame:CGRectMake(0, 100, 300, 500)];
        self.jindutiao.a=160;
        [self.view addSubview:self.jindutiao];
        
        
    }
    
    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    
    @end
    

      

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  • 原文地址:https://www.cnblogs.com/fume/p/5263681.html
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