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UIWebView UITextView

發布時間：2023/12/10 编程问答 36 豆豆

生活随笔收集整理的這篇文章主要介紹了 UIWebView UITextView 小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

// // ViewController.m // 網頁 // #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;//網頁縮放_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{//加載網址 [self loadTextFiledUrlString];//失去第一響應 [textField resignFirstResponder];return YES; }#pragma mark -UIWebViewDelegate//是否允許開始加載網絡請求 - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{return YES; }//已經加載請求 -(void)webViewDidStartLoad:(UIWebView *)webView{//顯示風火輪[UIApplication sharedApplication].networkActivityIndicatorVisible = YES; } //加載請求成功 -(void)webViewDidFinishLoad:(UIWebView *)webView{[UIApplication sharedApplication].networkActivityIndicatorVisible = YES; } //加載請求失敗 -(void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error{[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;//加載html （走馬燈）NSString *htmlString = @"<html><marquee><h1>對不起,網絡加載請求失敗！</h1></marquee></html>";[_webView loadHTMLString:htmlString baseURL:nil]; }/* -- UIWebView//常用屬性id <UIWebViewDelegate> delegate ; //設置控件的委托NSURLRequest *request //webView網絡請求BOOL scalesPageToFit ; //根據屏幕自適應BOOL canGoBack ; //可以跳轉上一頁BOOL canGoForward ; //可以跳轉下一頁BOOL loading ; //正在加載中//常用方法- (void)loadRequest:(NSURLRequest *)request;/加載網絡請求? - (void)loadHTMLString:(NSString *)string baseURL:(NSURL *)baseURL;//加載本地HTML? - (void)loadData:(NSData *)data MIMEType:(NSString *)MIMEType textEncodingName:(NSString *)textEncodingName baseURL:(NSURL *)baseURL;//加載緩存數據? - (void)reload;//刷新當前頁? - (void)stopLoading;//停止加載當前頁? - (void)goBack;//返回上一頁? - (void)goForward;//跳轉下一頁? - (NSString *)stringByEvaluatingJavaScriptFromString:(NSString *)script;//使用js腳本//代理方法- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType;//允許開始加載網絡請求? - (void)webViewDidStartLoad:(UIWebView *)webView;//已經加載請求? - (void)webViewDidFinishLoad:(UIWebView *)webView;//加載請求成功? - (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error;//加載請求失敗*//* --UITextView//常用屬性d <UITextViewDelegate> delegate ; //設置UITextView的委托NSString *text; //控件上面的顯示的文字UIFont *font ; //文字字體大小UIColor *textColor ; //字體顏色NSTextAlignment textAlignment ; //文字對齊方式NSRange *selectedRange ; //選中文字的rangeNSAttributedString *attributedText ; //屬性字符串//常用委托方法- (BOOL)textViewShouldBeginEditing:(UITextView *)textView;//允許開始編輯? - (BOOL)textViewShouldEndEditing:(UITextView *)textView;//允許結束編輯? - (void)textViewDidBeginEditing:(UITextView *)textView;//已經開始編輯? - (void)textViewDidEndEditing:(UITextView *)textView;//已經結束編輯? - (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text;//允許更改文本? - (void)textViewDidChange:(UITextView *)textView;//文本已經更改*/@end

轉載于:https://www.cnblogs.com/longiang7510/p/5394231.html

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