Android Open Source - android-socialbuttons Facebook Shares Button

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From Project

Back to project page android-socialbuttons.

License

The source code is released under:

Apache License

Java Source Code

package it.gcacace.android.socialbuttons;
/*from   w ww.  jav  a 2s . c o m*/
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ResolveInfo;
import android.content.res.TypedArray;
import android.net.Uri;
import android.os.AsyncTask;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;


public class FacebookSharesButton extends AbstractSharesButton {

    public static final int TYPE_MEDIUM = 1;

  private class SharesCountFetcherTask extends AsyncTask<String, Void, Long> {

    @Override
    protected Long doInBackground(String... uri) {

      HttpClient httpclient = new DefaultHttpClient();
      HttpResponse response;
      Long shares = null;
      try {

        HttpGet getRequest = new HttpGet("http://graph.facebook.com/fql?q=" + URLEncoder.encode("SELECT total_count FROM link_stat WHERE url='" + uri[0] + "'", "UTF-8"));
        response = httpclient.execute(getRequest);
        StatusLine statusLine = response.getStatusLine();
        if(statusLine.getStatusCode() == HttpStatus.SC_OK){
          ByteArrayOutputStream out = new ByteArrayOutputStream();
          response.getEntity().writeTo(out);
          out.close();
          JSONObject result = new JSONObject(out.toString());
          JSONArray data = result.getJSONArray("data");
          shares = ((JSONObject)data.get(0)).getLong("total_count");
        } else{
          //Closes the connection.
          response.getEntity().getContent().close();
          throw new IOException(statusLine.getReasonPhrase());
        }
      } catch (Exception e) {
        e.printStackTrace();
      }
      return shares;

    }

    @Override
    protected void onPostExecute(Long result) {

           onSharesDownloaded(result);

    }

  }

  public FacebookSharesButton(Context context) {
    super(context);
    initView(null);
  }

  @SuppressLint("NewApi")
  public FacebookSharesButton(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs);
    initView(attrs);
  }

  public FacebookSharesButton(Context context, AttributeSet attrs) {
    super(context, attrs);
    initView(attrs);
  }

  protected void initView(AttributeSet attrs) {
    LayoutInflater inflater = LayoutInflater.from(getContext());

    if(attrs != null) {

      TypedArray a = getContext().obtainStyledAttributes(attrs,R.styleable.FacebookSharesButton);
      setSharesUrl(a.getString(R.styleable.FacebookSharesButton_fbsharesUrl));
      setType(a.getInt(R.styleable.FacebookSharesButton_fbtype, TYPE_NORMAL));
      setAnnotation(a.getInt(R.styleable.FacebookSharesButton_fbannotation, ANNOTATION_NONE));
            setHideIfZero(a.getBoolean(R.styleable.FacebookSharesButton_fbhideIfZero, false));

      a.recycle();

    }

    // Inflating the right layout
    switch(getType()) {

    case TYPE_MEDIUM:

      inflater.inflate(R.layout.button_facebook_medium, this);
      break;

    default:

      inflater.inflate(R.layout.button_facebook_normal, this);

    }

    setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {

        String sharesUrl = getSharesUrl();
        if(sharesUrl != null) {
          Intent shareIntent = new Intent(Intent.ACTION_SEND);
          shareIntent.setType("text/plain");
          shareIntent.putExtra(android.content.Intent.EXTRA_TEXT, sharesUrl);
          shareIntent.setPackage("com.facebook.katana");
          List<ResolveInfo> resInfo = getContext().getPackageManager().queryIntentActivities(shareIntent, 0);
          if (resInfo == null || resInfo.isEmpty()){

            shareIntent = new Intent();
            try {
              shareIntent.setData(Uri.parse("https://www.facebook.com/sharer/sharer.php?u=" + URLEncoder.encode(sharesUrl, "UTF-8")));
              shareIntent.setAction(Intent.ACTION_VIEW);
            } catch (UnsupportedEncodingException e) {
              shareIntent.setData(Uri.parse(sharesUrl));
              shareIntent.setAction(Intent.ACTION_SEND);
            }

          }

          getContext().startActivity(shareIntent);

        }

      }
    });

        // Call the parent to start the fetching routine
        super.initView(attrs);

  }

    @Override
    protected void downloadShares(String sharesUrl) {

        new SharesCountFetcherTask().execute(sharesUrl);

    }
}

Java Source Code List

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