Android Open Source - DailySelfie Selfie View Adapter

• Back to Example/coursera  ↑

From Project

Back to project page DailySelfie.

License

The source code is released under:

MIT License

Java Source Code

package com.coursera.dailyselfie;
/*from  w  w w  . j  a  va  2  s . co  m*/
import java.util.ArrayList;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class SelfieViewAdapter extends BaseAdapter {
  
  private ArrayList<String> list = new ArrayList<String>();
  private static LayoutInflater inflater = null;
  private Context mContext;

  public SelfieViewAdapter(Context context) {
    mContext = context;
    inflater = LayoutInflater.from(mContext);
  }

  @Override
  public int getCount() {
    return list.size();
  }

  @Override
  public Object getItem(int position) {
    return list.get(position);
  }

  @Override
  public long getItemId(int position) {
    return position;
  }

  @Override
  public View getView(int position, View convertView, ViewGroup viewGroup) {
    
    View newView = convertView;
    ViewHolder holder;
    
    if (null == convertView) {
      holder = new ViewHolder();
      newView = inflater.inflate(R.layout.selfie_list_item, null);
      holder.icon = (ImageView) newView.findViewById(R.id.icon);
      holder.date = (TextView) newView.findViewById(R.id.date);
      holder.filename = (TextView) newView.findViewById(R.id.filename);
      newView.setTag(holder);
    } else {
      holder = (ViewHolder) newView.getTag();
    }
    
    String filename = list.get(position);
    filename = filename.replaceFirst("file:", "");
    holder.date.setText("Date: " + formatDateFromFile(filename));
    holder.filename.setText(filename);
    
    int targetW = 64; //holder.icon.getWidth();
    int targetH = 64; //holder.icon.getHeight();
    
    BitmapFactory.Options bmOptions = new BitmapFactory.Options();
    bmOptions.inJustDecodeBounds = true;
    BitmapFactory.decodeFile(filename, bmOptions);
    int photoW = bmOptions.outWidth;
    int photoH = bmOptions.outHeight;
    
    int scaleFactor = Math.min(photoW/targetW, photoH/targetH);
    
    bmOptions.inJustDecodeBounds = false;
    bmOptions.inSampleSize = scaleFactor;
    bmOptions.inPurgeable = true;
    
    Bitmap bitmap = BitmapFactory.decodeFile(filename, bmOptions);
    holder.icon.setImageBitmap(bitmap);
    
    return newView;
  }
  
  
  private String formatDateFromFile(String filename)
  {
    int startIndex = filename.indexOf('_')+1;
    int endIndex = filename.indexOf('_', startIndex);
    String date = filename.substring(startIndex, endIndex);
    String year = date.substring(0, 4);
    String month = date.substring(4, 6);
    String day = date.substring(6, 8);
    return year + "-" + month + "-" + day;
  }

  static class ViewHolder {
  
    ImageView icon;
    TextView date;
    TextView filename;
    
  }
  
  public void add(String file) {
    list.add(file);
    notifyDataSetChanged();
  }
  
  public ArrayList<String> getList() {
    return list;
  }

  public void removeAllViews(){
    list.clear();
    this.notifyDataSetChanged();
  }
}

Java Source Code List

• Back to Example/coursera  ↑