在Webview中添加进度对话框 [英] Adding a Progress Dialog in a webview

问题描述

当网页加载到网页视图中时，我一直在尝试将进度对话框纳入我的应用程序，因此不仅仅是一个空白的白屏。我知道这个问题是无处不在的，但我似乎无法找出有用的东西。我是新的编程和工作与Android，所以任何信息将是有帮助的。以下是我现在的代码。随着onPageStarted我收到Bitmap的编译错误，我不知道是什么问题。谢谢。

I have been trying to incorporate a progress dialog into my app when pages are loading in the webview so there isn't just a blank white screen. I know this question is posted everywhere but I can't seem to figure out anything that works for me. I am new to programming and working with android so any information would be helpful. Below is the code that I currently have now. With the onPageStarted I am getting a compile error for Bitmap and I'm not sure what the problem is. Thanks.

public class Grades extends Activity{

@Override
protected void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);  


    //requesting system settings

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().requestFeature( Window.FEATURE_PROGRESS);
     WebView webview = new WebView(this);

     //web settings

    WebSettings webSettings = webview.getSettings();
        webSettings.setJavaScriptEnabled(true); 
        webSettings.setDisplayZoomControls(true);
        webSettings.setBuiltInZoomControls(true);


     setContentView(webview);

    //loads webpages in webview instead of launching browser

     webview.setWebViewClient(new WebViewClient() {
            ProgressDialog prDialog;
            @Override
            public void onPageStarted(WebView view, String url, Bitmap favicon) {
                prDialog = ProgressDialog.show(Grades.this, null, "loading, please wait...");
                super.onPageStarted(view, url, favicon);
            }

            @Override
            public void onPageFinished(WebView view, String url) {
                prDialog.dismiss();
                super.onPageFinished(view, url);
            }
        });

   //loading webpage
     webview.loadUrl("page__link");
}

推荐答案

p>

Check this code,

    final ProgressDialog pd = ProgressDialog.show(OnlinePaymentActivity.this, "", "Please wait, your transaction is being processed...", true);

            mWebview  = (WebView)findViewById(R.id.webView1);

                mWebview.getSettings().setJavaScriptEnabled(true); // enable javascript

                mWebview.getSettings().setLoadWithOverviewMode(true);
                mWebview.getSettings().setUseWideViewPort(true);
                mWebview.getSettings().setBuiltInZoomControls(true);


                mWebview.setWebViewClient(new WebViewClient() {
                    public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
                        Toast.makeText(activity, description, Toast.LENGTH_SHORT).show();
                    }

                  @Override
                  public void onPageStarted(WebView view, String url, Bitmap favicon)
                  {
                      pd.show();
                  }


                    @Override
                    public void onPageFinished(WebView view, String url) {
                        pd.dismiss();

                            String webUrl = mWebview.getUrl();

                            }

}

                     });

                mWebview .loadUrl("www.google.com");

这篇关于在Webview中添加进度对话框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！