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.util.DisplayMetrics;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
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>();
    
    int size;

    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);
        }
        
        size = getSize();
    }

    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);
    }
    
    private int getSize() {
                 DisplayMetrics metrics = new DisplayMetrics();
                 WindowManager wmgr = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
                 wmgr.getDefaultDisplay().getMetrics(metrics);
                 if (metrics.widthPixels < 480) {
                         return 150;
                 } else {
                         return 200;
                 }
    }

    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(size, size));
            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	torben	790	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	torben	915	import android.util.DisplayMetrics;
11	torben	790	import android.view.View;
12			import android.view.ViewGroup;
13	torben	915	import android.view.WindowManager;
14	torben	790	import android.widget.BaseAdapter;
15			import android.widget.GridView;
16			import android.widget.ImageView;
17	torben	912	import android.widget.Toast;
18	torben	790
19			public class ImageAdapter extends BaseAdapter {
20			//int mGalleryItemBackground;
21			private Context mContext;
22
23	torben	791	ArrayList<String> mBitmapPaths = new ArrayList<String>();
24			ArrayList<Bitmap> mBitmaps = new ArrayList<Bitmap>();
25	torben	915
26			int size;
27	torben	790
28			public ImageAdapter(Context c) {
29			mContext = c;
30
31			String path = Environment.getExternalStorageDirectory().getPath() + "/Side9" ;
32
33	torben	912
34
35	torben	790	File root = new File(path);
36	torben	912
37			if (root.exists() == false) {
38			Toast.makeText(mContext, "Side9 folder not found on sdcard", Toast.LENGTH_LONG).show();
39			return;
40			}
41
42	torben	790	File files[] = root.listFiles();
43	torben	791	for (File f : files) {
44			Bitmap bmp = BitmapFactory.decodeFile( f.getPath() );
45			Bitmap scaled = Bitmap.createScaledBitmap(bmp, bmp.getWidth()/4, bmp.getHeight()/4, true);
46
47			mBitmapPaths.add( f.getPath() );
48			mBitmaps.add(scaled);
49	torben	790	}
50	torben	915
51			size = getSize();
52	torben	790	}
53
54			public int getCount() {
55			return mBitmaps.size();
56			}
57
58			public Object getItem(int position) {
59			return position;
60			}
61
62			public long getItemId(int position) {
63			return position;
64			}
65
66			public String getImagePath(int position) {
67	torben	791	return mBitmapPaths.get(position);
68	torben	790	}
69	torben	915
70			private int getSize() {
71			DisplayMetrics metrics = new DisplayMetrics();
72			WindowManager wmgr = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
73			wmgr.getDefaultDisplay().getMetrics(metrics);
74			if (metrics.widthPixels < 480) {
75			return 150;
76			} else {
77			return 200;
78			}
79			}
80	torben	790
81			public View getView(int position, View convertView, ViewGroup parent) {
82			ImageView imageView;
83			if (convertView == null) { // if it's not recycled, initialize some attributes
84			imageView = new ImageView(mContext);
85	torben	915	imageView.setLayoutParams(new GridView.LayoutParams(size, size));
86	torben	790	imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
87			imageView.setAdjustViewBounds(true);
88			imageView.setPadding(4, 4, 4, 4);
89			} else {
90			imageView = (ImageView) convertView;
91			}
92
93	torben	791
94			imageView.setImageBitmap( mBitmaps.get(position) );
95	torben	790	return imageView;
96
97			}
98			}