thoerup/side9/ImageAdapter.java

package dk.thoerup.side9;

import java.io.File;
import java.util.ArrayList;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Environment;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;

public class ImageAdapter extends BaseAdapter {
    //int mGalleryItemBackground;
    private Context mContext;
    
    ArrayList<String> mBitmapPaths = new ArrayList<String>();
    ArrayList<Bitmap> mBitmaps = new ArrayList<Bitmap>();

    public ImageAdapter(Context c) {
        mContext = c;
        
        String path = Environment.getExternalStorageDirectory().getPath() + "/Side9" ;
        
        
        File root = new File(path);
        
        if (root.exists() == false) {
                Toast.makeText(mContext, "Side9 folder not found on sdcard", Toast.LENGTH_LONG).show();
                return;
        } 
        
        File files[] = root.listFiles();
        for (File f : files) {          
            Bitmap bmp = BitmapFactory.decodeFile( f.getPath() );
            Bitmap scaled =  Bitmap.createScaledBitmap(bmp, bmp.getWidth()/4, bmp.getHeight()/4, true);
            
                mBitmapPaths.add(  f.getPath() );
                mBitmaps.add(scaled);
        }
    }

    public int getCount() {
        return mBitmaps.size();
    }

    public Object getItem(int position) {
        return position;
    }

    public long getItemId(int position) {
        return position;
    }
    
    public String getImagePath(int position) {
        return mBitmapPaths.get(position);
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        ImageView imageView;
        if (convertView == null) {  // if it's not recycled, initialize some attributes
            imageView = new ImageView(mContext);
            imageView.setLayoutParams(new GridView.LayoutParams(200, 200));
            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
            imageView.setAdjustViewBounds(true);   
            imageView.setPadding(4, 4, 4, 4);
        } else {
            imageView = (ImageView) convertView;
        }


        imageView.setImageBitmap( mBitmaps.get(position) );
        return imageView;

    }
}
1	package dk.thoerup.side9;
2
3	import java.io.File;
4	import java.util.ArrayList;
5
6	import android.content.Context;
7	import android.graphics.Bitmap;
8	import android.graphics.BitmapFactory;
9	import android.os.Environment;
10	import android.view.View;
11	import android.view.ViewGroup;
12	import android.widget.BaseAdapter;
13	import android.widget.GridView;
14	import android.widget.ImageView;
15	import android.widget.Toast;
16
17	public class ImageAdapter extends BaseAdapter {
18	//int mGalleryItemBackground;
19	private Context mContext;
20
21	ArrayList<String> mBitmapPaths = new ArrayList<String>();
22	ArrayList<Bitmap> mBitmaps = new ArrayList<Bitmap>();
23
24	public ImageAdapter(Context c) {
25	mContext = c;
26
27	String path = Environment.getExternalStorageDirectory().getPath() + "/Side9" ;
28
29
30
31	File root = new File(path);
32
33	if (root.exists() == false) {
34	Toast.makeText(mContext, "Side9 folder not found on sdcard", Toast.LENGTH_LONG).show();
35	return;
36	}
37
38	File files[] = root.listFiles();
39	for (File f : files) {
40	Bitmap bmp = BitmapFactory.decodeFile( f.getPath() );
41	Bitmap scaled = Bitmap.createScaledBitmap(bmp, bmp.getWidth()/4, bmp.getHeight()/4, true);
42
43	mBitmapPaths.add( f.getPath() );
44	mBitmaps.add(scaled);
45	}
46	}
47
48	public int getCount() {
49	return mBitmaps.size();
50	}
51
52	public Object getItem(int position) {
53	return position;
54	}
55
56	public long getItemId(int position) {
57	return position;
58	}
59
60	public String getImagePath(int position) {
61	return mBitmapPaths.get(position);
62	}
63
64	public View getView(int position, View convertView, ViewGroup parent) {
65	ImageView imageView;
66	if (convertView == null) { // if it's not recycled, initialize some attributes
67	imageView = new ImageView(mContext);
68	imageView.setLayoutParams(new GridView.LayoutParams(200, 200));
69	imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
70	imageView.setAdjustViewBounds(true);
71	imageView.setPadding(4, 4, 4, 4);
72	} else {
73	imageView = (ImageView) convertView;
74	}
75
76
77	imageView.setImageBitmap( mBitmaps.get(position) );
78	return imageView;
79
80	}
81	}