//
//  ViewController.m
//  模拟UIWebView
//
//  Created by dc0061 on 15/12/10.
//  Copyright © 2015年 dc0061. All rights reserved.
//#import "ViewController.h"@interface ViewController ()<UISearchBarDelegate,UIWebViewDelegate>
{UISearchBar *_bar;UIWebView *_webView;UIToolbar *_toolbar;UIBarButtonItem *_backButton;UIBarButtonItem *_forwarButton;
}
@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];[self layout];
}
- (void) layout{//添加搜索栏_bar=[[UISearchBar alloc]initWithFrame:CGRectMake(0, 20, 375, 50)];_bar.delegate=self;[self.view addSubview:_bar];//添加浏览器_webView =[[UIWebView alloc]initWithFrame:CGRectMake(0, 90, 375, 527)];_webView.delegate=self;[self.view addSubview:_webView];_toolbar=[[UIToolbar alloc]initWithFrame:CGRectMake(0, 617, 375, 50)];[self.view addSubview:_toolbar];_backButton =[[UIBarButtonItem alloc]initWithTitle:@"返回⬅️" style:UIBarButtonItemStyleDone target:self action:@selector(fanhui)];_forwarButton =[[UIBarButtonItem alloc]initWithTitle:@"前进→" style:UIBarButtonItemStyleDone target:self action:@selector(qianjin)];//空按钮，没有点击事件UIBarButtonItem *btnSpacing=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];_toolbar.items=@[_backButton,btnSpacing,_forwarButton];
}#pragma mark UISearchBar代理方法
- (void) searchBarSearchButtonClicked:(UISearchBar *)searchBar{[self request:searchBar.text];
}#pragma mark UIWebView开始时调用的方法
-(void) webViewDidStartLoad:(UIWebView *)webView{NSLog(@"UIWebView开始时调用的方法");[UIApplication sharedApplication].networkActivityIndicatorVisible=YES;
}
#pragma mark UIWebView加载结束时调用的方法
- (void) webViewDidFinishLoad:(UIWebView *)webView{_bar.text=[NSString stringWithFormat:@"%@",webView.request.URL];[UIApplication sharedApplication].networkActivityIndicatorVisible=NO;
}
- (void) request : (NSString *) name{NSURL *url;if([name hasPrefix:@"file://"]){//1获取文件位置NSRange rang=[name rangeOfString:@"file://"];NSString *urlName=[name substringFromIndex:rang.length];//获取文件位置url=[[NSBundle mainBundle]URLForResource:urlName withExtension:nil];}else{NSString *str=[NSString stringWithFormat:@"http://www.baidu.com/s?&wd=%@",name];str=[str stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];//将url先进行编码url=[NSURL URLWithString:str];}[_webView loadRequest:[NSURLRequest requestWithURL:url]];
}- (void) fanhui{[_webView goBack];
}- (void) qianjin{[_webView goForward];
}- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];
}@end