创建 UIWebView 并以编程方式加载网站

本文介绍了创建 UIWebView 并以编程方式加载网站的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

以下是我的代码.我只是想加载一个网站页面并在屏幕上放一个后退按钮.不知道为什么屏幕上什么也没有显示.

The following is my code. I simply want to load a website page and put a back button on screen. Don't know why nothing shows on the screen.

在.h中

#import <UIKit/UIKit.h> @interface ThirdViewController : UIViewController { UIWebView *myWebView; } @property (nonatomic, retain) UIWebView *myWebView; -(IBAction)goBack:(id)sender; @end

在.m

#import "ThirdViewController.h" @implementation ThirdViewController @synthesize myWebView; -(IBAction)goBack:(id)sender { [myWebView goBack]; } - (void)viewDidLoad { [super viewDidLoad]; NSString *urlAddress = @"www.apple"; NSURL *url = [NSURL URLWithString:urlAddress]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; [myWebView loadRequest:requestObj]; [self.view addSubview:myWebView]; self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStylePlain target:self action:@selector(goBack:)]; }

推荐答案

初始化你的 webView.

Initialize your webView.

UIWebView *tempWebview = [[UIWebView alloc]initWithFrame:theFrame]; NSString *urlAddress = @"www.apple"; NSURL *url = [NSURL URLWithString:urlAddress]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; self.myWebView = tempWebview; [tempWebview loadRequest:requestObj]; [tempWebview release]; myWebView.delegate=self;