private Bitmap GetCachedBitmap(int position)
{
string mCachedBitmapFilePath = mPath + position + ".jpg";
Java.IO.File mCachedBitmapFile = new Java.IO.File(mCachedBitmapFilePath);
Bitmap lq = null;
try {
if (mCachedBitmapFile.Exists() && mCachedBitmapFile.CanRead())
{
Log.Debug(TAG, "page " + position + " found in cache");
lq = BitmapFactory.DecodeFile(mCachedBitmapFilePath);
return(lq);
}
} catch (Exception ex) {
//e.printStackTrace();
// some error with cached file,
// delete the file and get rid of bitmap
mCachedBitmapFile.Delete();
lq = null;
Log.Error(TAG, ex.Message);
}
if (lq == null)
{
lq = Bitmap.CreateBitmap(mPreviewSize.X, mPreviewSize.Y, Bitmap.Config.Argb8888);
mCore.DrawPage(lq, position, mPreviewSize.X, mPreviewSize.Y, 0, 0, mPreviewSize.X, mPreviewSize.Y, new MuPDFCore.Cookie(mCore));
try
{
lq.Compress(Android.Graphics.Bitmap.CompressFormat.Jpeg, 80, new System.IO.FileStream(mCachedBitmapFilePath, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.ReadWrite));
}
catch (Java.IO.FileNotFoundException ex)
{
//e.printStackTrace();
mCachedBitmapFile.Delete();
Log.Error(TAG, ex.Message);
}
}
return(lq);
}
