Android Open Source - SimpleReader Child Adapter

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Back to project page SimpleReader.
License

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

package com.dreamteam.app.wallpaper;
/*w  w  w  .ja va 2 s  .co  m*/
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import com.dreamteam.app.wallpaper.MyImageView.OnMeasureListener;
import com.dreamteam.app.wallpaper.NativeImageLoader.OnImageLoadListener;
import com.dreateam.app.ui.R;
import com.nineoldandroids.animation.AnimatorSet;
import com.nineoldandroids.animation.ObjectAnimator;

import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Point;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.GridView;

@SuppressLint("UseSparseArrays")
public class ChildAdapter extends BaseAdapter {
  private Point mPoint = new Point(0, 0);
  private HashMap<Integer, Boolean> mSelectMap = new HashMap<Integer, Boolean>();
  private GridView mGridView;
  private List<String> list;
  protected LayoutInflater mInflater;
  private OnSelectListener onSelectListener;

  public ChildAdapter(Context context, List<String> list, GridView mGridView) {
    this.list = list;
    this.mGridView = mGridView;
    mInflater = LayoutInflater.from(context);
  }
  
  public void setOnSelectListener(OnSelectListener onSelectListener) {
    this.onSelectListener = onSelectListener;
  }
  
  @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(final int position, View convertView, ViewGroup parent) {
    final ViewHolder viewHolder;
    final String path = list.get(position);
    
    if(convertView == null){
      convertView = mInflater.inflate(R.layout.grid_child_item, null);
      viewHolder = new ViewHolder();
      viewHolder.mImageView = (MyImageView) convertView.findViewById(R.id.child_image);
      viewHolder.mCheckBox = (CheckBox) convertView.findViewById(R.id.child_checkbox);
      
      viewHolder.mImageView.setOnMeasureListener(new OnMeasureListener() {
        @Override
        public void onMeasureSize(int width, int height) {
          mPoint.set(width, height);
        }
      });
      
      convertView.setTag(viewHolder);
    }else{
      viewHolder = (ViewHolder) convertView.getTag();
      viewHolder.mImageView.setImageResource(R.drawable.friends_sends_pictures_no);
    }
    viewHolder.mImageView.setTag(path);
    viewHolder.mCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
      @Override
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        if(!mSelectMap.containsKey(position) || !mSelectMap.get(position)){
          addAnimation(viewHolder.mCheckBox);
        }
        mSelectMap.put(position, isChecked);
        if(onSelectListener != null && isChecked) {
          onSelectListener.onSelect(path);
        } 
      }
    });
    
    viewHolder.mCheckBox.setChecked(mSelectMap.containsKey(position) ? mSelectMap.get(position) : false);
    
    Bitmap bitmap = NativeImageLoader.getInstance().loadImage(path, mPoint, 
        new OnImageLoadListener() {
      @Override
      public void onImageLoad(String path, Bitmap bitmap) {
        ImageView imageView = (ImageView) mGridView.findViewWithTag(path);
        if(bitmap != null && imageView != null){
          imageView.setImageBitmap(bitmap);
        }
      }});
    
    if(bitmap != null){
      viewHolder.mImageView.setImageBitmap(bitmap);
    }else{
      viewHolder.mImageView.setImageResource(R.drawable.friends_sends_pictures_no);
    }
    
    return convertView;
  }
  
  private void addAnimation(View view){
    float [] vaules = new float[]{0.5f, 0.6f, 0.7f, 0.8f, 0.9f, 1.0f, 1.1f, 1.2f, 1.3f, 1.25f, 1.2f, 1.15f, 1.1f, 1.0f};
    AnimatorSet set = new AnimatorSet();
    set.playTogether(ObjectAnimator.ofFloat(view, "scaleX", vaules), 
        ObjectAnimator.ofFloat(view, "scaleY", vaules));
        set.setDuration(150);
    set.start();
  }
  
  
  public List<Integer> getSelectItems(){
    List<Integer> list = new ArrayList<Integer>();
    for(Iterator<Map.Entry<Integer, Boolean>> it = mSelectMap.entrySet().iterator(); it.hasNext();){
      Map.Entry<Integer, Boolean> entry = it.next();
      if(entry.getValue()){
        list.add(entry.getKey());
      }
    }
    return list;
  }
  
  
  public static class ViewHolder{
    public MyImageView mImageView;
    public CheckBox mCheckBox;
  }

  
  public interface OnSelectListener {
    public void onSelect(String path);
  }


}
Java Source Code List
