Android Open Source - PictureMap Picture Callout

From Project

Back to project page PictureMap.
License

The source code is released under:
GNU General Public License
If you think the Android project PictureMap 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

/* Copyright (c) 2009 Ari Pollak <aripollak@gmail.com>
/*  w  ww. j av  a2  s.c  om*/
   This file is part of Picture Map.

   Picture Map is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   Picture Map is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with Picture Map.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.aripollak.picturemap;

import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.AsyncTask;
import android.provider.MediaStore.Images;
import android.util.AttributeSet;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TableLayout;

import com.drewChanged.metadata.Metadata;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.OverlayItem;

class PictureCallout extends TableLayout {
  static final String TAG = "PicturePopup";
  Context mContext;
  ImageView mImageView;
  ProgressBar mProgressBar;
  Button mViewButton;
  OverlayItem mLastItem;
  ShowImage mShowImage;
  
  // TODO: change layout when we're in landscape mode
  public PictureCallout(Context context, AttributeSet attrs) {    
    super(context, attrs);
    mContext = context;
    
    mImageView = new ImageView(context);
    mImageView.setVisibility(GONE);
    addView(mImageView, 150, 150);
    
    mProgressBar = new ProgressBar(context);
    mProgressBar.setIndeterminate(true);
    addView(mProgressBar, 150, 150);
    
    mViewButton = new Button(context);
    mViewButton.setText("View image");
    mViewButton.setOnClickListener(mViewImageListener);
    addView(mViewButton);
  }
  
    
    public void onFocusChanged(ItemizedOverlay overlay, OverlayItem item) {
    // This seems to be required all the time, even when
    // an image is already focused and we're just switching
      setVisibility(GONE);
      mLastItem = item;
      if (mShowImage != null) {
        mShowImage.cancel(true);
        mShowImage = null;
      }
    if (item == null)
      return;
    
    mShowImage = new ShowImage();
    mShowImage.execute(item.getTitle());
    setVisibility(VISIBLE);
    }
    
  /* Re-scales image for use in the popup bubble */
  class ShowImage extends AsyncTask<String, Integer, Bitmap>{
    @Override
    protected void onPreExecute() {
      super.onPreExecute();
      mProgressBar.setVisibility(VISIBLE);
      mImageView.setVisibility(GONE);
    }
    
    @Override
    protected Bitmap doInBackground(String... locations) {
      Metadata metadata = ImageUtilities.readMetadata(locations[0]);
      return ImageUtilities.getThumb(metadata, locations[0], 150);
    }
    
    @Override
    protected void onPostExecute(Bitmap bm) {
      super.onPostExecute(bm);
      mImageView.setImageBitmap(bm);
      mProgressBar.setVisibility(GONE);
      mImageView.setVisibility(VISIBLE);
    }
  }
  
    /** Clicked on View Picture button */
    private final OnClickListener mViewImageListener = new OnClickListener() {
      @Override
      public void onClick(View v) {
        Uri uri = Uri.withAppendedPath(
            Images.Media.EXTERNAL_CONTENT_URI,
            mLastItem.getSnippet());
        Intent intent = new Intent(Intent.ACTION_VIEW);
            intent.setDataAndType(uri, "image/jpeg");
            mContext.startActivity(Intent.createChooser(
                intent, mContext.getResources().getString(R.string.select_image)));
      }
    };
}
Java Source Code List
