Progressbar WebView, taki jak Chrome Browser

Question

Czy ktoś ma pomysł, aby użyć paska postępu w widoku internetowym, tak jak w Chrome lub Czytniku? jak na dole tutaj:

Answer 1

Jest to kod użyłem, aby pokazać postęp:

import android.os.Bundle; 
import android.app.Activity; 
import android.view.Menu; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.view.Window; 
import android.webkit.WebView; 
import android.webkit.WebViewClient; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Toast; 

public class MainActivity extends Activity { 
WebView mWvUrl; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    final Activity activity=this; 
    super.onCreate(savedInstanceState); 

    getWindow().requestFeature(Window.FEATURE_INDETERMINATE_PROGRESS); 
    setContentView(R.layout.activity_main); 
    activity.setProgressBarIndeterminateVisibility(false); 
    mWvUrl = (WebView) findViewById(R.id.wv_url); 

    mWvUrl.getSettings().setJavaScriptEnabled(true); 
    Button btnLoad = (Button) findViewById(R.id.btn_load); 
    btnLoad.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      EditText etUrl = (EditText) findViewById(R.id.et_url); 
       mWvUrl.loadUrl(etUrl.getText().toString()); 
       activity.setProgressBarIndeterminateVisibility(true); 
     } 
    }); 

    mWvUrl.setWebViewClient(new WebViewClient(){ 
      @Override 
      public boolean shouldOverrideUrlLoading(WebView view, String url) { 

       /** This prevents the loading of pages in system browser */ 
       return false; 
      } 

      /** Callback method, executed when the page is completely loaded */ 
      @Override 
      public void onPageFinished(WebView view, String url) { 
       super.onPageFinished(view, url); 

       Toast.makeText(getBaseContext(), 
           "Page loaded Completely", 
           Toast.LENGTH_SHORT).show(); 

       /** Hiding Indeterminate Progress Bar in the title bar*/ 
       activity.setProgressBarIndeterminateVisibility(false); 

      } 

     }); 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.activity_main, menu); 
    return true; 
} 

}