Android Open Source - ExampleApp Browser Activity

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License

The source code is released under:

Copyright (c) 2014, Altinn All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redis...

Java Source Code

package com.altinn.apps.fisher.ui.screen;
/**/*  www.  j  a v  a 2 s.  c  o m*/
 * This is a browser activity used to initiate a login process
 * On success full login, A wait screen will be displayed to the user indicating he will be 
 * redirected to the application soon and notified to the caller activity by invoking onActivityResult.
 */
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.webkit.CookieManager;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.TextView;
import android.widget.Toast;

import com.altinn.apps.fisher.R;
import com.altinn.apps.fisher.common.AppConstants;
import com.altinn.apps.fisher.net.CookieHelper;


public class BrowserActivity extends Activity {

  private WebView webView;
  private CWebViewClient webviewClient;
  private int resultFoundCount=0;
  private TextView mTextView;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    //mExcludeMenuNavigation = true;
    //mLayOutId = R.layout.browser;
    super.onCreate(savedInstanceState);
    setContentView(R.layout.browser);
    init();
  }
  
  private void init(){    
    //setTitle(R.string.context_menu_information,R.drawable.navigation_back);
    webView = (WebView)findViewById(R.id.myWebView);
    webView.getSettings().setJavaScriptEnabled(true);
    webView.getSettings().setPluginsEnabled(true);
    webviewClient = new CWebViewClient();
    webView.setWebViewClient(webviewClient);
    webView.loadUrl(AppConstants.LOGIN_WEBSERVICE_URL);
    
    mTextView =  (TextView)findViewById(R.id.redirectText);
    mTextView.setVisibility(View.GONE);
    webView.setVisibility(View.VISIBLE);
    
    
  }
  
  private class CWebViewClient extends WebViewClient {
    @Override
    public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
      Toast.makeText(BrowserActivity.this, "Oh no! " + description, Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {  
       System.out.println("------------- on shouldOverrideUrlLoading---"+url);
       if( !url.startsWith(AppConstants.LOGIN_WEBSERVICE_URL)){
          resultFoundCount = 0;
          webView.setVisibility(View.VISIBLE);
          mTextView.setVisibility(View.GONE);
        }
       super.onPageStarted(view, url, favicon);
    }
    
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {  
      view.loadUrl(url);      
      return true;
    }
    public void onPageFinished(WebView view, String url) {  
      System.out.println("------------- on new onPageFinished:URL---"+url);
      String cookieStr = null;
      if( url.startsWith(AppConstants.LOGIN_WEBSERVICE_URL)){
        resultFoundCount++;
        cookieStr = CookieManager.getInstance().getCookie(url);
        CookieHelper.getInstance().updateCookie(cookieStr,true);
        System.out.println("------------- on new onPageFinished:Cookie---"+cookieStr);
      }
      if(cookieStr != null && cookieStr.contains(".ASPXAUTH") && resultFoundCount==1){
        mTextView.setVisibility(View.VISIBLE);
        webView.setVisibility(View.GONE);
        resultHandler.sendEmptyMessageDelayed(1, 5*1000);    
        //Here delayed send opted because some time, onpageFinished called and with login callback url then and
        //After few seconds onPageStart will be called, in that case we are waiting for 5 seconds 
      }
    }
  }
  
  @Override
  public void onBackPressed() {
    // if web view has history, then
    if(webView != null && webView.getVisibility() == View.VISIBLE && webView.canGoBack()){
      webView.goBack();
    } else{
      confirmBack();
    }
  }
  
  private void confirmBack(){
    Dialog d = new AlertDialog.Builder(this)
        .setMessage((R.string.dialog_skip_login))
        .setPositiveButton(R.string.dialog_yes,
            new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface dialog,int id) {
                dialog.dismiss();                
                finish();
              }
            })
        .setNegativeButton(R.string.dialog_no,
            new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface dialog,int id) {
                dialog.dismiss();
                resultFoundCount = 0;
                webView.loadUrl(AppConstants.LOGIN_WEBSERVICE_URL);
              }
            }).create();
    d.show();
  }
  
  private Handler resultHandler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
      if(resultFoundCount > 0){
        Intent returnIntent = new Intent();
        setResult(RESULT_OK, returnIntent); 
        finish();
      }
    }
  };

}

Java Source Code List

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