我怎么知道我的 WebView 已 100% 加载? [英] How can I know that my WebView is loaded 100%?

问题描述

我正在尝试在我的 WebView 中加载一些包含 JavaScript 的 HTML 代码.

I'm trying to load in my WebView some HTML code that contains JavaScript.

现在，我想测试我的 WebView 是否在 5 秒之前加载.我已经尝试过 getProgress() 方法，但有时我得到进度为 100，但我的 Webview 未加载.
还有其他方法可以确保我的 Webview 加载 100% 吗?

Now , I want to test if my WebView is loaded before 5 secondes. I've tried the method getProgress(), but sometimes I get that the progress is 100, but my Webview is not loaded.
Is there another way to be sure that my Webview is loaded 100%?

这是我代码的一部分:

sdk.getWebView().loadDataWithBaseURL("notreal/", data_html,MIME_TYPE,ENCODING_UTF_8,null);

Timer timer = new Timer();
TimerTask task = new TimerTask() {

    @Override
    public void run(){                      
    Log.i("TAG", "progress fin = "+sdk.getWebView().getProgress());

    if(sdk.getWebView().getProgress() <100){
        //cancel the webView
        sdk.getContext().runOnUiThread(new Runnable() {
             @Override
             public void run() {
            sdk.getImgView().setVisibility(View.VISIBLE);
            sdk.getWebView().setVisibility(View.GONE);
             }
        });
    }

    // else ,the Webview is loaded
    else{
        //prepare webview 
        sdk.getContext().runOnUiThread(new Runnable() {
            @Override
            public void run(){
                     // hide imageView
                     sdk.getImgView().setVisibility(View.GONE);
                     sdk.getWebView().setVisibility(View.VISIBLE);
            }
        });
    }

 }
 };
 timer.schedule(task, 5000);

推荐答案

正如这里所说:如何监听一个WebView完成加载一个URL?

boolean loadingFinished = true;
boolean redirect = false;

mWebView.setWebViewClient(new WebViewClient() {

   @Override
   public boolean shouldOverrideUrlLoading(WebView view, String urlNewString) {
       if (!loadingFinished) {
          redirect = true;
       }

   loadingFinished = false;
   view.loadUrl(urlNewString);
   return true;
   }

   @Override
   public void onPageStarted(WebView view, String url, Bitmap facIcon) {
        loadingFinished = false;
        //SHOW LOADING IF IT ISNT ALREADY VISIBLE  
    }

   @Override
   public void onPageFinished(WebView view, String url) {
       if(!redirect){
          loadingFinished = true;
       }

       if(loadingFinished && !redirect){
         //HIDE LOADING IT HAS FINISHED
       } else{
          redirect = false; 
       }

    }
});

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