// // 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rangeNSAttributedString *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
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