将图像从SQlite加载到gridview

Question

每当我从Sqlite加载我的图片时，活动甚至无法启动，我的设备就会停止响应，即使在等待一段时间后屏幕上也看不到任何内容。

第二个问题是每当我从代码中删除bm.recycle（）或b.recycle（）时，它都会出现一个错误，说出OutOfMemory异常。那么我应该保留他们吗？如果不是我应该怎么做才能删除OutOfMemory异常？

这是我的代码：

public class ApplyLeave extends Activity {
ArrayList<String> name=new ArrayList<>();
ArrayList<String> description=new ArrayList<>();
ArrayList<Float> price=new ArrayList<>();
ArrayList<Bitmap> front=new ArrayList<>();
GridView g;
byte[] f;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ActionBar bar=getActionBar();
    bar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#FF989898")));
    setContentView(R.layout.activity_apply_leave);
    DbHelper help=new DbHelper(this);
    Cursor cr=help.displayProducts();
    cr.moveToFirst();
    do{
        name.add(cr.getString(cr.getColumnIndex("Name")));
        description.add(cr.getString(cr.getColumnIndex("Description")));
        price.add(cr.getFloat(cr.getColumnIndex("Price")));
        if(cr.getBlob(cr.getColumnIndex("FrontSide"))!=null) {
            f = cr.getBlob(cr.getColumnIndex("FrontSide"));
        }
        else if(cr.getBlob(cr.getColumnIndex("LeftSide"))!=null)
        {
          f = cr.getBlob(cr.getColumnIndex("LeftSide"));
        }
       else if(cr.getBlob(cr.getColumnIndex("RightSide"))!=null)
        {
          f = cr.getBlob(cr.getColumnIndex("RightSide"));
        }
        BitmapFactory.Options options=new BitmapFactory.Options();// Create object of bitmapfactory's option method for further option use
       options.inPurgeable = true; // inPurgeable is used to free up memory while required
        options.inSampleSize=2;
        Bitmap bm=BitmapFactory.decodeByteArray(f,0,f.length,options);
       Bitmap b=Bitmap.createScaledBitmap(bm,50,50,true);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        b.compress(Bitmap.CompressFormat.PNG, 100, out);
        front.add(b);
        bm.recycle();
       b.recycle();
    }while(cr.moveToFirst());
        g = (GridView)findViewById(R.id.g);
    g.setAdapter(new ImageAdapter(this));

}

我的ImageAdapter类

public class ImageAdapter extends BaseAdapter{
Context c;
public ImageAdapter(Context context) {
    c=context;
}

@Override
public int getCount() {
    DbHelper help=new DbHelper(getApplication());
    Cursor cr=help.displayProducts();

    return cr.getCount();
}

@Override
public Object getItem(int position) {
    return null;
}

@Override
public long getItemId(int position) {
    return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View view=convertView;
    if ( convertView == null )
    {
        LayoutInflater inflater=getLayoutInflater();
        view=inflater.inflate(R.layout.gridview,null);
        TextView n= (TextView)findViewById(R.id.Name);
        TextView p=(TextView)findViewById(R.id.Price);
        p.setText(price.get(position).toString());
        n.setText(name.get(position));
        ImageView image=(ImageView)findViewById(R.id.RightSide);
        image.setScaleType(ImageView.ScaleType.CENTER_CROP);
        image.setImageBitmap(front.get(position));
    }
    return view;
}