Objective-C ,ios,iphone开发基础:3分钟教你做一个iphone手机浏览器

第一步：新建一个Single View工程：

第二步：新建好工程，关闭arc。

第三步：拖放一个Text Field 一个UIButton 和一个 UIWebView . Text Field 的title 属性设置为 http:// 。UIButton 的title属性设置为 go 。 布局如图：

第四步：为Text Field 和  UIWebView 连线，插座变量分别命名为  textUrl  和 webRequest。为UIButton 连线 .连接一个action事件（- (IBAction)btnGo:(id)sender;）

然后在（- (IBAction)btnGo:(id)sender;里面添加代码：

- (IBAction)btnGo:(id)sender {
    NSURL* url = [[NSURL alloc] initWithString:textUrl.text];
    NSURLRequest* request = [[NSURLRequest alloc] initWithURL:url];
    [webRequest loadRequest:request];
    [textUrl resignFirstResponder];
    [url release];
    [request release];
}

到此。一个简单浏览器设计就完成了 。运行如下：输入 http://sina.com.cn

整个项目代码如下：

//
//  wsqViewController.h
//  webTest
//
//  Created by administrator on 13-9-5.
//  Copyright (c) 2013年 __MyCompanyName__. All rights reserved.
//
 
#import <UIKit/UIKit.h>
 
@interface wsqViewController : UIViewController {
    UITextField *textUrl;
    UIWebView *webRequest;
}
 
@property (retain, nonatomic) IBOutlet UITextField *textUrl;
 
@property (retain, nonatomic) IBOutlet UIWebView *webRequest;
- (IBAction)btnGo:(id)sender;
@end

//
//  wsqViewController.m
//  webTest
//
//  Created by administrator on 13-9-5.
//  Copyright (c) 2013年 __MyCompanyName__. All rights reserved.
//
 
#import "wsqViewController.h"
 
@implementation wsqViewController
@synthesize textUrl;
@synthesize webRequest;
 
- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
 
}
 
#pragma mark - View lifecycle
 
- (void)viewDidLoad
{
    [super viewDidLoad];
 
}
 
- (void)viewDidUnload
{
    [self setTextUrl:nil];
    [self setWebRequest:nil];
    [super viewDidUnload];
 
}
 
- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
}
 
- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
}
 
- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
}
 
- (void)viewDidDisappear:(BOOL)animated
{
    [super viewDidDisappear:animated];
}
 
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
 
- (void)dealloc {
    [textUrl release];
    [webRequest release];
    [super dealloc];
}
- (IBAction)btnGo:(id)sender {
    NSURL* url = [[NSURL alloc] initWithString:textUrl.text];
    NSURLRequest* request = [[NSURLRequest alloc] initWithURL:url];
    [webRequest loadRequest:request];
    [textUrl resignFirstResponder];
    [url release];
    [request release];
}
@end