ios - Xcode 上的多个 UIwebView

Question

我有大约 +3 个 UIwebView，如何对每个 UIwebView 进行编码以转到不同的 URL。

这里是我的 ViewController.m 文件中的代码

 #import "ViewController.h"
    @interface ViewController ()


    @property (weak, nonatomic) IBOutlet UIWebView *webView;


    @end

    @implementation ViewController

    - (void)viewDidLoad {
        [super viewDidLoad];
        UIWebView *webview=[[UIWebView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width,self.view.frame.size.height)];
        NSString *url=@"http://test.bithumor.co/test22.php";
        NSURL *nsurl=[NSURL URLWithString:url];
        NSURLRequest *nsrequest=[NSURLRequest requestWithURL:nsurl];
        [webview loadRequest:nsrequest];
        [self.view addSubview:webview];
        // Do any additional setup after loading the view, typically from a nib.
    }

    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }



    @end

如何为每个 UIwebView 保留完全相同的代码，但让每个 UIwebView 转到不同的网页？

示例:
UIwebView1 = http://example.com/1
UIwebView2 = http://example.com/2
UIwebView1 = http://example.com/3

Answer 1

您有两种选择，您可以创建 UIWebView 的三个实例，每个实例都有一个 URL 和请求，或者您可以重复使用同一个实例，只是继续重新分配它的 URL 请求，然后再次调用它。

如果你想创建三个独立的 UIWebView 实例，除了两次以上，你将只做你拥有的，尽管将每个实例添加到当前 View 只会让你看到最后一个实例。

UIWebView *webview=[[UIWebView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width,self.view.frame.size.height)];
    NSString *url=@"http://test.bithumor.co/test22.php";
    NSURL *nsurl=[NSURL URLWithString:url];
    NSURLRequest *nsrequest=[NSURLRequest requestWithURL:nsurl];
    [webview loadRequest:nsrequest];

UIWebView *webview2=[[UIWebView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width,self.view.frame.size.height)];
    NSString *url2=@"http://nextUrl";
    NSURL *nsurl2=[NSURL URLWithString:url2];
    NSURLRequest *nsrequest2=[NSURLRequest requestWithURL:nsurl2];
    [webview2 loadRequest:nsrequest2];

UIWebView *webview3=[[UIWebView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width,self.view.frame.size.height)];
    NSString *url3=@"http://anotherNexturl";
    NSURL *nsurl3=[NSURL URLWithString:url3];
    NSURLRequest *nsrequest3=[NSURLRequest requestWithURL:nsurl3];
    [webview3 loadRequest:nsrequest3];

或者，根据您在 Web View 之间切换的方式，您可以重新分配 NSURLRequest 并重新使用 UIWebView 的相同实例

UIWebView *webview=[[UIWebView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width,self.view.frame.size.height)];
    NSString *url=@"http://test.bithumor.co/test22.php";
    NSURL *nsurl=[NSURL URLWithString:url];
    NSURLRequest *nsrequest=[NSURLRequest requestWithURL:nsurl];
    [webview loadRequest:nsrequest];

    NSString *url2=@"http://nextUrl";
    NSURL *nsurl2=[NSURL URLWithString:url2];
    NSURLRequest *nsrequest2=[NSURLRequest requestWithURL:nsurl2];
    [webview loadRequest:nsrequest2];

    NSString *url3=@"http://nextUrl";
    NSURL *nsurl3=[NSURL URLWithString:url3];
    NSURLRequest *nsrequest2=[NSURLRequest requestWithURL:nsurl3];
    [webview loadRequest:nsrequest3];