I made a image gallery but getting a memory error when I slide
photos.
Then I added bitmapfactory but I can run the program because It shows
error in the bitmapdrawable.
can anybody tell me how to solve this problem.
ContentResolver cr=getContentResolver();
Cursor c=cr.query(
MediaStore.Images.Media.INTERNAL_CONTENT_URI,
null,null,null,null);
c.moveToFirst();
for (int i=0;i<c.getCount();i++) {
String path=c.getString(c.getColumnIndexOrThrow("_data"));
photoList.add(file2bmp(path,480,480));
for (String column:c.getColumnNames()) {//デバッグ出力
android.util.Log.e("",column+"="+
c.getString(c.getColumnIndexOrThrow(column)));
}
c.moveToNext();
}
Gallery gallery=new Gallery(this);
gallery.setSpacing(2);
gallery.setAdapter(new GalleryAdapter());
gallery.setLayoutParams(new LinearLayout.LayoutParams(FP,FP));
layout.addView(gallery);
}
private Bitmap file2bmp(String path,int maxW,int maxH) {
BitmapFactory.Options options;
InputStream in=null;
try {
options=new BitmapFactory.Options();
options.inJustDecodeBounds=true;
in=new FileInputStream(path);
BitmapFactory.decodeStream(in,null,options);
in.close();
int scaleW=options.outWidth/maxW+1;
int scaleH=options.outHeight/maxH+1;
int scale =Math.max(scaleW,scaleH);
options=new BitmapFactory.Options();
options.inJustDecodeBounds=false;
options.inSampleSize=scale;
in=new FileInputStream(path);
Bitmap bmp=BitmapFactory.decodeStream(in,null,options);
in.close();
return bmp;
} catch (Exception e) {
try {
if (in!=null) in.close();
} catch (Exception e2) {
}
return null;
}
}
public class GalleryAdapter extends BaseAdapter {
public int getCount() {
return photoList.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup
parent) {
ImageView imageView;
if (convertView==null) {
imageView=new ImageView(MainAct.this);
imageView.setLayoutParams(new
Gallery.LayoutParams(240,240));
imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
imageView.setBackgroundColor(Color.BLACK);
BitmapDrawable bd=new
BitmapDrawable(photoList.get(position)); //getting error
imageView.setImageDrawable(bd);
} else {
imageView=(ImageView)convertView;
}
return imageView;
}
}
Thank you
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