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V. 2
package com.ap.wificam.collection;
import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.ThumbnailUtils;
import android.os.AsyncTask;
import android.os.Environment;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.ap.wificam.R;
import com.ap.wificam.model.Collection;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.ArrayList;
import static android.graphics.BitmapFactory.decodeFile;
/**
* Created by AND1 on 07.03.14.
*/
public class CollectionListAdapter extends BaseAdapter {
private Context context;
private ArrayList<Collection> collectionList;
private int activeCollectionId;
private File SDCardRoot = Environment.getExternalStorageDirectory();
private SharedPreferences prefs;
private String savePath;
private String[] imagePaths;
public CollectionListAdapter(Context context, ArrayList<Collection> collectionList, int activeCollectionId) {
this.context = context;
this.collectionList = collectionList;
this.activeCollectionId = activeCollectionId;
prefs = PreferenceManager.getDefaultSharedPreferences(context);
savePath = prefs.getString("folder_name_text", "default_no");
}
@Override
public int getCount() {
return collectionList.size();
}
@Override
public Object getItem(int i) {
return collectionList.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
Collection collection = collectionList.get(i);
Log.d("and1", "element : " + i);
ViewHolder holder;
if(view == null){
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.item_collection_row, null);
holder = new ViewHolder();
holder.name = (TextView) view.findViewById(R.id.textViewName);
holder.date = (TextView) view.findViewById(R.id.textViewDate);
holder.location = (TextView) view.findViewById(R.id.textViewLocation);
holder.active = (TextView) view.findViewById(R.id.textViewActiveCollection);
holder.count = (TextView) view.findViewById(R.id.textViewImageCount);
holder.imageView[0] = (ImageView) view.findViewById(R.id.imageViewThumb0);
holder.imageView[1] = (ImageView) view.findViewById(R.id.imageViewThumb1);
holder.imageView[2] = (ImageView) view.findViewById(R.id.imageViewThumb2);
holder.imageView[3] = (ImageView) view.findViewById(R.id.imageViewThumb3);
holder.position = i;
view.setTag(holder);
Log.d("and1", "holder if");
}
else{
holder = (ViewHolder) view.getTag();
Log.d("and1", "holder else");
}
holder.name.setText(collection.getName());
holder.date.setText(collection.getDate());
holder.location.setText(collection.getLocation());
holder.count.setText(String.valueOf(getImageCount((int) collection.getId())));
new ThumbnailTask(i, holder).execute(imagePaths);
//highlighten um active collection vorzuheben
if( ((int)collection.getId()) == activeCollectionId){
holder.active.setVisibility(View.VISIBLE);
view.setBackgroundColor(context.getResources().getColor(R.color.bg_gray_highlight));
}
else{
holder.active.setVisibility(View.INVISIBLE);
view.setBackgroundColor(0x00000000);
}
return view;
}
private int getImageCount(int collectionId){
String folderPath = SDCardRoot.getAbsolutePath() + savePath + collectionId + "/"; //TODO single var file path
imagePaths = getFilePaths(folderPath);
File collectionFolder = new File(folderPath);
int imageCount = 0;
if(collectionFolder.exists())
imageCount = collectionFolder.list().length;
return imageCount;
}
private class ThumbnailTask extends AsyncTask<String, Void, Bitmap[]> {
private ViewHolder viewHolder;
private Bitmap thumb[] = new Bitmap[4];
private int position;
public ThumbnailTask(int position, ViewHolder holder){
super();
this.position = position;
this.viewHolder = holder;
}
@Override
protected Bitmap[] doInBackground(String... args) {
//Lade Die Bilder als Bitmap wenn welche existieren
File imageFile;
File thumbFile;
int j = args.length;
if (j >4) j=4;
for(int i=0; i<j; i++){
imageFile = new File(args[i]);
thumbFile = new File(context.getFilesDir().getAbsolutePath() + "/thumbs/" + imageFile.getName());
if(!thumbFile.exists()){
thumb[i] = createThumb(args[i]);
}
else{
thumb[i] = BitmapFactory.decodeFile(thumbFile.getAbsolutePath());
}
}
return null;
}
@Override
protected void onPostExecute(Bitmap[] result) {
if(viewHolder.position == this.position) {
for (int i = 0; i < 4; i++) {
if(thumb[i] != null)
viewHolder.imageView[i].setImageBitmap(thumb[i]);
else
viewHolder.imageView[i].setImageResource(R.drawable.ic_action_new);
}
}
}
@Override
protected void onPreExecute() {}
@Override
protected void onProgressUpdate(Void... values) {}
public Bitmap createThumb(String filePath){
File imageFile = new File(filePath);
File thumbFile = new File(context.getFilesDir().getAbsolutePath() + "/thumbs/" + imageFile.getName());
Bitmap thumbX = ThumbnailUtils.extractThumbnail(decodeFile(filePath), 200, 200);
//saveThumb(thumb, thumbFile);
return thumbX;
}
//TODO
public void saveThumb(Bitmap thumb, File thumbFile) {
FileOutputStream out = null;
try {
out = new FileOutputStream(thumbFile.getAbsolutePath());
} catch (FileNotFoundException e) {
e.printStackTrace();
}
thumb.compress(Bitmap.CompressFormat.JPEG, 85, out);
}
//TODO
public void loadThumb(String filePath){
}
}
public class ViewHolder
{
public ImageView imageView[] = new ImageView[4];
public TextView date, location, name, active, count;
public int position;
}
public String[] getFilePaths(String folderPath){
[...]
}
}
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