Webview does NOT finish loading

问题

If I use a button it works, but it redirects to a default browser. I want to use the webview because i want to display the website in my webview and avoid the address bar to display.

Here is my code:

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main1);

    WebView webview = (WebView) findViewById(R.id.webView1);
    webview.loadUrl("http://docs.google.com/gview?embedded=true&url=http://178.239.16.28/fzs/sites/default/files/dokumenti-vijesti/sample.pdf");
    webview.setWebViewClient (new WebViewClient());

}

回答1:

Try below code sequence and let me know if any issues. Don't forget to add permission to your AndroidManifest.xml

<uses-permission android:name="android.permission.INTERNET" />

Change to below :

WebView webview = (WebView) findViewById(R.id.webView1);
webview.setWebViewClient (new HelloWebViewClient());
webview.getSettings().setJavaScriptEnabled(true);
webview.loadUrl("http://docs.google.com/gview?embedded=true&url=http://178.239.16.28/fzs/sites/default/files/dokumenti-vijesti/sample.pdf");

And use below snippts

private class HelloWebViewClient extends WebViewClient {


        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);

        }

回答2:

Your url is redirecting.

You'll have to override shouldOverrideUrlLoading

Give the host application a chance to handle the key event synchronously. e.g. menu shortcut key events need to be filtered this way. If return true, WebView will not handle the key event. If return false, WebView will always handle the key event, so none of the super in the view chain will see the key event. The default behavior returns false.

Parameters

view The WebView that is initiating the callback.

event The key event.

Returns True if the host application wants to handle the key event itself, otherwise return false

回答3:

Use this lines ..

package org.example.webviewdemo;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;


public class WebViewDemo extends Activity {


    private WebView webView;


    Activity activity ;
    private ProgressDialog progDailog; 

    @SuppressLint("NewApi")
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        activity = this;

        progDailog = ProgressDialog.show(activity, "Loading","Please wait...", true);
        progDailog.setCancelable(false);



       webView = (WebView) findViewById(R.id.webview_compontent);



       webView.getSettings().setJavaScriptEnabled(true);     
       webView.getSettings().setLoadWithOverviewMode(true);
       webView.getSettings().setUseWideViewPort(true);        
        webView.setWebViewClient(new WebViewClient(){

            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                progDailog.show();
                view.loadUrl(url);

                return true;                
            }
            @Override
            public void onPageFinished(WebView view, final String url) {
                progDailog.dismiss();
            }
        });

        webView.loadUrl("http://docs.google.com/gview?embedded=true&url=http://178.239.16.28/fzs/sites/default/files/dokumenti-vijesti/sample.pdf");

    }


}

It will show loader until loading the file. then loader get hide once file have loaded using google docs. hope this will help you.

来源：https://stackoverflow.com/questions/16408984/webview-does-not-finish-loading