UIKit 框架之UIProgressView

// Created by City--Online on 15/5/18. // Copyright (c) 2015年 XQB. All rights reserved. #import "ViewController.h" @interface ViewController () @property(nonatomic,strong) UIProgressView *progress; @property(nonatomic,strong) NSTimer *timer; @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; //设置的高度对进度条的高度没影响，整个高度=进度条的高度，进度条也是个圆角矩形 //但slider滑动控件：设置的高度对slider也没影响，但整个高度=设置的高度，可以设置背景来检验 _progress=[[UIProgressView alloc]initWithFrame:CGRectMake(20, 200, 300, 10)]; // typedef NS_ENUM(NSInteger, UIProgressViewStyle) { // UIProgressViewStyleDefault, // normal progress bar // UIProgressViewStyleBar, // for use in a toolbar // }; //两种几乎无区别 _progress.progressView "2.jpg"]; //进度条的背景图片 _progress.trackImage=[UIImage imageNamed:@"1.jpg"]; [self.view addSubview:_progress]; _timer=[NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(btnClick:) userInfo:nil repeats:YES]; [_timer fire]; -(void)btnClick:(UIButton *)sender if (_progress.progress 0.95) { _progress.progress+=0.05; else [_timer invalidate]; - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. @end

 设置的progressImage、trackImage属性不起作用,网上搜了好多，说是IOS7之后没有效果

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