How to add a Progress in XWalkView

Question

I use XWalkView to load webpage, like this:

<org.xwalk.core.XWalkView android:id="@+id/webview"
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        >
</org.xwalk.core.XWalkView>

Activity

XWalkView mXWalkView = (XWalkView) findViewById(R.id.webview);
mXWalkView.load("http://xxxxxxxx", null);

for detail about implementing XWalkView refer to my this post.

But now, for the page have too many content, it will call 4~5 seconds to finshing loading. This will results the app page with blank. I want to add the loading progress for XWalkView. For XWalkView has very little demo, I really didn't know where to start.

Any help will be appreciated. Thansk!

Edited: After I try according @Srihari's answer, another weired issue come out. THe progress shows well, and when it finished 100%, it disappeard. But it jump out with 100% again, very soon after page finish loading, and never gone.

the activity:

class ResourceClient extends XWalkResourceClient {
    public ResourceClient(XWalkView xwalkView) {
        super(xwalkView);
    }

    public void onLoadStarted(XWalkView view, String url) {
        mProgress = (ProgressBar) findViewById(R.id.progressBar);
        mProgress.setVisibility(View.VISIBLE);
        super.onLoadStarted(view, url);
        Log.d("INFO", "Load Started:" + url);
    }

    public void onLoadFinished(XWalkView view, String url) {
        super.onLoadFinished(view, url);
        Log.d("INFO", "Load Finished:" + url);
        bottomBar = (BottomBar) findViewById(R.id.bottomBar);
        mProgress = (ProgressBar) findViewById(R.id.progressBar);
        mProgress.setVisibility(View.GONE);
    }

    public void onProgressChanged(XWalkView view, int progressInPercent) {
        super.onProgressChanged(view, progressInPercent);
        Log.d("INFO", "Loading Progress:" + progressInPercent);
        mProgress = (ProgressBar) findViewById(R.id.progressBar);
        mProgress.setProgress(progressInPercent);
    }

the xml

<ProgressBar
    android:id="@+id/progressBar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    style="@android:style/Widget.ProgressBar.Horizontal"
    android:layout_marginTop="50dp" />

Answer 1

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pls Do not remove this talk all we have from god

you need to Prayer to God and will you get all what you want

this my MainActivity

import android.annotation.SuppressLint;
import android.os.Bundle;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.View;
import android.webkit.ValueCallback;
import android.widget.FrameLayout;
import android.widget.ProgressBar;

import org.xwalk.core.XWalkPreferences;
import org.xwalk.core.XWalkResourceClient;
import org.xwalk.core.XWalkUIClient;
import org.xwalk.core.XWalkView;

import static com.github.crazyorr.embeddedcrosswalk.R.string.url;
public class MainActivity extends AppCompatActivity {

    private XWalkView mXWalkView;
    private FrameLayout frameLayout;
    private SwipeRefreshLayout swipe;
    private ProgressBar progressBar;

    @SuppressLint("SetJavaScriptEnabled")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        frameLayout = (FrameLayout) findViewById(R.id.framelayout);
        progressBar = (ProgressBar) findViewById(R.id.ProgressBar);
        swipe= (SwipeRefreshLayout) findViewById(R.id.swipe);
        swipe.setColorSchemeResources(R.color.orange, R.color.green, R.color.blue, R.color.purple);
        swipe.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {

                @Override
                public void onRefresh() 
                {mXWalkView.reload(url);}
        });

            loadweb();
        }


      public void loadweb(){

        mXWalkView = (XWalkView) findViewById(R.id.webview);
        mXWalkView.setResourceClient(new ResourceClient(mXWalkView));
          mXWalkView.setUIClient(new XWalkUIClient(mXWalkView) {
              @Override
              public void onPageLoadStarted(XWalkView view, String url) {
                  frameLayout.setVisibility(View.VISIBLE);
                  progressBar.setVisibility(ProgressBar.VISIBLE);
              }

              @Override
              public void onPageLoadStopped(XWalkView view, String url, XWalkUIClient.LoadStatus status) {
                  progressBar.setVisibility(view.GONE);
                  swipe.setRefreshing(false);
              }
          });
        XWalkPreferences.setValue(XWalkPreferences.REMOTE_DEBUGGING, true);
        mXWalkView.getSettings().setJavaScriptEnabled(true);
        mXWalkView.loadUrl("https://www.google.com.sa");
      }


      class ResourceClient extends XWalkResourceClient {

        public ResourceClient(XWalkView xwalkView) {
            super(xwalkView);
        }

         public void onProgressChanged(XWalkView view, int progressInPercent){

             frameLayout.setVisibility(View.VISIBLE);
             progressBar.setProgress(progressInPercent);


             if (progressInPercent == 100){
                 frameLayout.setVisibility(View.GONE);
             }
             super.onProgressChanged(view, progressInPercent);



         }


      }





      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return super.onCreateOptionsMenu(menu);
      }

      @Override
      public void onBackPressed() {
        mXWalkView.evaluateJavascript("onBackPressed()", new ValueCallback<String>() {
            @Override
            public void onReceiveValue(final String value) {
                if (!Boolean.valueOf(value)) {
                    MainActivity.super.onBackPressed();
                }

            }
        });
      }
    }

i hop this help you