// // ViewController.m // 网页 // #import "ViewController.h" @interface ViewController ()<UITextFieldDelegate,UIWebViewDelegate> @property (weak, nonatomic) IBOutlet UITextField *textFiled; @property (weak, nonatomic) IBOutlet UIWebView *webView; @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; _textFiled.delegate = self; _webView.delegate = self; _textFiled.returnKeyType = UIReturnKeySearch; //网页缩放 _webView.scalesPageToFit = YES; [self loadTextFiledUrlString]; // Do any additional setup after loading the view, typically from a nib. } -(void)loadTextFiledUrlString{ NSURL *url = [NSURL URLWithString:_textFiled.text]; NSURLRequest *request = [NSURLRequest requestWithURL:url]; [_webView loadRequest:request]; } #pragma mark -UITextFiledDelegate -(BOOL)textFieldShouldReturn:(UITextField *)textField{ //加载网址 [self loadTextFiledUrlString]; //失去第一响应 [textField resignFirstResponder]; return YES; } #pragma mark -UIWebViewDelegate //是否允许开始加载网络请求 - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{ return YES; } //已经加载请求 -(void)webViewDidStartLoad:(UIWebView *)webView{ //显示风火轮 [UIApplication sharedApplication].networkActivityIndicatorVisible = YES; } //加载请求成功 -(void)webViewDidFinishLoad:(UIWebView *)webView{ [UIApplication sharedApplication].networkActivityIndicatorVisible = YES; } //加载请求失败 -(void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error{ [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; //加载html （走马灯） NSString *htmlString = @"<html><marquee><h1>对不起,网络加载请求失败 ！</h1></marquee></html>"; [_webView loadHTMLString:htmlString baseURL:nil]; } /* -- UIWebView //常用属性 id <UIWebViewDelegate> delegate ; //设置控件的委托 NSURLRequest *request //webView网络请求 BOOL scalesPageToFit ; //根据屏幕自适应 BOOL canGoBack ; //可以跳转上一页 BOOL canGoForward ; //可以跳转下一页 BOOL loading ; //正在加载中 //常用方法 - (void)loadRequest:(NSURLRequest *)request;/加载网络请求 - (void)loadHTMLString:(NSString *)string baseURL:(NSURL *)baseURL;//加载本地HTML - (void)loadData:(NSData *)data MIMEType:(NSString *)MIMEType textEncodingName:(NSString *)textEncodingName baseURL:(NSURL *)baseURL;//加载缓存数据 - (void)reload;//刷新当前页 - (void)stopLoading;//停止加载当前页 - (void)goBack;//返回上一页 - (void)goForward;//跳转下一页 - (NSString *)stringByEvaluatingJavaScriptFromString:(NSString *)script;//使用js脚本 //代理方法 - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType;//允许开始加载网络请求 - (void)webViewDidStartLoad:(UIWebView *)webView;//已经加载请求 - (void)webViewDidFinishLoad:(UIWebView *)webView;//加载请求成功 - (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error;//加载请求失败 */ /* --UITextView //常用属性 d <UITextViewDelegate> delegate ; //设置UITextView的委托 NSString *text; //控件上面的显示的文字 UIFont *font ; //文字字体大小 UIColor *textColor ; //字体颜色 NSTextAlignment textAlignment ; //文字对齐方式 NSRange *selectedRange ; //选中文字的range NSAttributedString *attributedText ; //属性字符串 //常用委托方法 - (BOOL)textViewShouldBeginEditing:(UITextView *)textView;//允许开始编辑 - (BOOL)textViewShouldEndEditing:(UITextView *)textView;//允许结束编辑 - (void)textViewDidBeginEditing:(UITextView *)textView;//已经开始编辑 - (void)textViewDidEndEditing:(UITextView *)textView;//已经结束编辑 - (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text;//允许更改文本 - (void)textViewDidChange:(UITextView *)textView;//文本已经更改 */ @end