Android Open Source - sami-android-demo Accounts Web View

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License

The source code is released under:
Apache License
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Java Source Code

package io.samsungsami.android;
//from  w  w w. j av  a  2  s . com
import android.annotation.SuppressLint;
import android.content.Context;
import android.view.MotionEvent;
import android.view.View;
import android.webkit.CookieManager;
import android.webkit.JavascriptInterface;
import android.webkit.JsResult;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;

public class AccountsWebView extends WebView{
  
  public static final String TAG = AccountsWebView.class.getName();
    private static AccountsActivity accountsActivity;
    private static String latestUsername="";
    private static String latestPassword="";
    
    /**
   * Don't use this constructor, here to remove a warning
   * and will intentionally throw exception 
   * @param context
   */
    public AccountsWebView(Context context){
      super(context);
      throw new AssertionError();
    }
    
    /**
     * Creates a webview that is able to catch the Accounts credentials
     * @param oauth
     */
    @SuppressWarnings("deprecation")
  @SuppressLint("SetJavaScriptEnabled")
  public AccountsWebView(AccountsActivity accountsActivity) {
      super(accountsActivity);
      
      AccountsWebView.accountsActivity = accountsActivity;
        
      setScrollBarStyle(SCROLLBARS_INSIDE_OVERLAY);
        setFocusable(true);
        setFocusableInTouchMode(true);
        requestFocus(View.FOCUS_DOWN);
        CookieManager.getInstance().removeAllCookie();
        CookieManager.getInstance().setAcceptCookie(true);
        WebSettings webSettings = getSettings();
        webSettings.setSavePassword(false);
        webSettings.setSaveFormData(false);
        webSettings.setJavaScriptEnabled(true);
        webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
        webSettings.setDomStorageEnabled(true);
        webSettings.setSupportZoom(false);
        webSettings.setUseWideViewPort(true);
        webSettings.setUseWideViewPort(true);
        webSettings.setLoadWithOverviewMode(true);
        webSettings.setCacheMode(WebSettings.LOAD_NO_CACHE);
    webSettings.setAppCacheEnabled(false);
        //this.setDescendantFocusability(WebView.FOCUS_BLOCK_DESCENDANTS);
        addJavascriptInterface(new JavascriptToAndroidInterface(), "myInterface"); 
        
        setWebViewClient(new AccountsWebClient());
        
        setWebChromeClient(new WebChromeClient() {
          
          public void onProgressChanged(WebView view, int progress)
          {
            if(progress == 0) {
                AccountsWebView.accountsActivity.setLoading(true);
              } else if(progress == 100) {
                AccountsWebView.accountsActivity.setLoading(false);
              }
          }

          @Override
          public boolean onJsAlert(WebView view, String url, String message, JsResult result) {
              result.confirm();
              return true;
          }
      });
    }

    @Override
    public boolean onCheckIsTextEditor(){
        return true;
    }
    
    /**
     * This bugfixes android not displaying soft keyboard when touching a textbox
     */
    @Override
    public boolean onTouchEvent(MotionEvent ev){
        switch (ev.getAction())
        {
            case MotionEvent.ACTION_DOWN:
            case MotionEvent.ACTION_UP:
                if (!hasFocus())
                    requestFocus();
            break;
        }

        return super.onTouchEvent(ev);
    }
    
    public void onLoginCompleted(String accessToken){
      accountsActivity.onLoginCompleted(accessToken);
    }
  
    /**
     * Expose Java interface to Accounts webpage
     *
     */
    class JavascriptToAndroidInterface   
  {  
    @JavascriptInterface
      public void setCredentials(String username, String password){  
      if(sanitize(username) != null && sanitize(password) != null){
        
        latestUsername = username;
        latestPassword = password;
        
      }
      }
    
    /**
     * Dejavascriptize value
     * @param value
     * @return
     */
    public String sanitize(String value){
      if(value != null && (!value.equalsIgnoreCase("undefined")) && value.length() > 0){
        return value;
      }
      else{
        return null;
      }
    }
  }

    /**
     * Method useful to store the credentials after users/self
     * @return
     */
  public static String getLatestPassword() {
    return latestPassword;
  }
  
  /**
     * Method useful to store the credentials after users/self
     * @return
     */
  public static String getLatestUsername() {
    return latestUsername;
  }  
  
}
Java Source Code List
