Android Open Source - doubanbook4android Douban Dialog

From Project

Back to project page doubanbook4android.
License

The source code is released under:
Eclipse Public License - v 1.0 THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES RECI...
If you think the Android project doubanbook4android listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.study.doubanbook_for_android.auth;
// w  w w  .j  av a2s  .c o m
import com.study.doubanbook_for_android.utils.UriUtils;

import android.annotation.SuppressLint;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.net.http.SslError;
import android.os.Bundle;
import android.util.Log;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.Window;
import android.webkit.SslErrorHandler;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;
import android.widget.RelativeLayout;

/**
 * ????????????????dialog???????webview???redirect?????????????????accesstoken
 */
public class DoubanDialog extends Dialog {

  private DoubanOAuthListener mListener;
  private ProgressDialog mSpinner;
  private WebView mWebView;
  private RelativeLayout webViewContainer;
  private RelativeLayout mContent;

  private final static String TAG = "Douban-WebView";

  private static int theme = android.R.style.Theme_Translucent_NoTitleBar;

  private String authUrl;

  public DoubanDialog(Context context, String authUrl,
      DoubanOAuthListener listener) {
    super(context, theme);
    this.authUrl = authUrl;
    this.mListener = listener;
  }

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mSpinner = new ProgressDialog(getContext());
    mSpinner.requestWindowFeature(Window.FEATURE_NO_TITLE);
    mSpinner.setMessage("Loading...");
    mSpinner.setOnKeyListener(new OnKeyListener() {

      @Override
      public boolean onKey(DialogInterface dialog, int keyCode,
          KeyEvent event) {
        // onBack();
        return false;
      }

    });
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    this.getWindow().setFeatureDrawableAlpha(Window.FEATURE_OPTIONS_PANEL,
        0);
    mContent = new RelativeLayout(getContext());
    setUpWebView();

    addContentView(mContent, new LayoutParams(LayoutParams.MATCH_PARENT,
        LayoutParams.MATCH_PARENT));
  }

  protected void onBack() {
    try {
      mSpinner.dismiss();
      if (null != mWebView) {
        mWebView.stopLoading();
        mWebView.destroy();
      }
    } catch (Exception e) {
    }
    dismiss();
  }

  @SuppressLint("SetJavaScriptEnabled")
  private void setUpWebView() {
    webViewContainer = new RelativeLayout(getContext());
    mWebView = new WebView(getContext());
    mWebView.setVerticalScrollBarEnabled(false);
    mWebView.setHorizontalScrollBarEnabled(false);
    mWebView.getSettings().setJavaScriptEnabled(true);
    mWebView.setWebViewClient(new DoubanDialog.DoubanWebViewClient());
    mWebView.loadUrl(authUrl);
    FrameLayout.LayoutParams FILL = new FrameLayout.LayoutParams(
        ViewGroup.LayoutParams.MATCH_PARENT,
        ViewGroup.LayoutParams.MATCH_PARENT);

    mWebView.setLayoutParams(FILL);
    mWebView.setVisibility(View.INVISIBLE);

    RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
        LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);

    mContent.setBackgroundColor(Color.WHITE);

    webViewContainer.addView(mWebView, lp);
    webViewContainer.setGravity(Gravity.CENTER);
    mContent.addView(webViewContainer, lp);
  }

  private class DoubanWebViewClient extends WebViewClient {

    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
      Log.d(TAG, "Redirect URL: " + url);
      return super.shouldOverrideUrlLoading(view, url);
    }

    @Override
    public void onReceivedError(WebView view, int errorCode,
        String description, String failingUrl) {
      super.onReceivedError(view, errorCode, description, failingUrl);
      mListener.onError(new DoubanDialogError(description, errorCode,
          failingUrl));
      DoubanDialog.this.dismiss();
    }

    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {
      Log.d(TAG, "onPageStarted URL: " + url);
      if (url.startsWith(Douban.redirecturl)) {
        handleRedirectUrl(view, url);
        view.stopLoading();
        DoubanDialog.this.dismiss();
        return;
      }
      super.onPageStarted(view, url, favicon);
      mSpinner.show();
    }

    @Override
    public void onPageFinished(WebView view, String url) {
      Log.d(TAG, "onPageFinished URL: " + url);
      super.onPageFinished(view, url);
      if (mSpinner.isShowing()) {
        mSpinner.dismiss();
      }
      mWebView.setVisibility(View.VISIBLE);
    }

    public void onReceivedSslError(WebView view, SslErrorHandler handler,
        SslError error) {
      handler.proceed();
    }

  }

  private void handleRedirectUrl(WebView view, String url) {
    Bundle values = UriUtils.parseUrl(url);

    String error = values.getString("error");
    String error_code = values.getString("error_code");
    if (error == null && error_code == null) {
      final String autorization_code = values.getString("code");
      Log.d(TAG, "the autorization_code :" + autorization_code);

      new Thread() {
        @Override
        public void run() {
          try {
            DoubanParameters data = new DoubanParameters();
            data.add("client_id", Douban.app_key);
            data.add("client_secret", Douban.secret);
            data.add("redirect_uri", Douban.redirecturl);
            data.add("grant_type", "authorization_code");
            data.add("code", autorization_code);
            Token token = DoubanRequest.requestAccessToken(data);
            if (token != null) {
              mListener.onComplete(token);
            } else {
              Log.d(TAG, "Get access token failure!");
            }
          } catch (Exception e) {
            Log.e(TAG, "Get access token failure :", e);
          }
        }
      }.start();

    } else if (error.equals("access_denied")) {
      // ???????????????????????????
      mListener.onCancel();
    } else {
      if (error_code == null) {
        mListener.onDoubanException(new DoubanException(error, 0));
      } else {
        mListener.onDoubanException(new DoubanException(error, Integer
            .parseInt(error_code)));
      }

    }
  }

}
Java Source Code List
