UIWebView UITextView

//

//  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
巴特西

UIWebView UITextView

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