IOS 开发学习34 使用webview

1 基本使用

#import <UIKit/UIKit.h>@interface ViewController : UIViewController<UIWebViewDelegate>@end

#import "ViewController.h"@interface ViewController (){    UIWebView *webview;}@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    webview=[[UIWebView alloc]initWithFrame:CGRectMake(0,0,self.view.frame.size.width,self.view.frame.size.height)];    webview.backgroundColor = [UIColor clearColor];    webview.scalesPageToFit =YES;    webview.delegate =self;    NSURLRequest *request=[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://baidu.com"]];    [self.view addSubview:webview];    [webview loadRequest:request];}

2 执行js

NSString *js_result = [webview stringByEvaluatingJavaScriptFromString:@"document.write('hello');"];