Question

I am currently building this Android application, where I will be taking a screenshot of a “TableLayout” and then emailing it as an attachment. Here is the part of the code which takes the screenshot.

However, when I try to attach the file, using the following code, it says that “File Size Too Large for Attachment”. Can anyone suggest any other measures that I can take, apart from Bitmap.Compress, in order to make my file size even smaller? Thanks in advance!

private void getScreen()
            {
                View content = findViewById(R.id.TransactionLog);
                content.setDrawingCacheEnabled(true);

                content.buildDrawingCache(true);

                Bitmap bitmap = Bitmap.createBitmap(content.getDrawingCache());
                content.setDrawingCacheEnabled(false); // clear drawing cache

                File file = new File(Environment.getExternalStorageDirectory() + 
                         File.separator + "whatever2.png");



                        try 
                            {
                                file.createNewFile();
                                FileOutputStream ostream = new FileOutputStream(file);
                                bitmap.compress(CompressFormat.PNG, 0, ostream);
                                ostream.flush();
                                ostream.close();

                            } 
                        catch (Exception e) 
                            {
                                e.printStackTrace();
                            }


                }

Answer 1

Try using Bitmap.createScaledBitmap:

public static Bitmap createScaledBitmap (Bitmap src, int dstWidth, int
dstHeight, boolean filter)
Since: API Level 1

Creates a new bitmap, scaled from an existing bitmap.
Parameters
src – The source bitmap.
dstWidth – The new bitmap’s desired width.
dstHeight – The new bitmap’s desired height.
filter – true if the source should be filtered.

FYI, the quality parameter passed to compress does not affect the file size when you are using CompressFormat.PNG. Try using CompressFormat.JPEG instead, then try different quality values.

Alternatively, try this:
http://thinkandroid.wordpress.com/2009/12/25/resizing-a-bitmap/