Bitmap from String

Question

Is there a way or How do I take a String and create a bitmap from it using Java for development for Android?

I had a look at the java api for bitmaps and couldnt fin

Answer 1

Assuming that your image data is in a String called myImageData, the following should do the trick:

byte[] imageAsBytes = Base64.decode(myImageData.getBytes());
ImageView image = (ImageView)this.findViewById(R.id.ImageView);
image.setImageBitmap(
        BitmapFactory.decodeByteArray(imageAsBytes, 0, imageAsBytes.length)
);

For Base64 decoding, you can use http://iharder.sourceforge.net/current/java/base64/ as Android doesn't contain Base64-support prior to 2.2.

Note, I didn't actually run this code, so you'll have to doublecheck for errors.

more link: using canvas http://developer.android.com/reference/android/graphics/Canvas.html

Answer 2

DrawText on canvas by creating bitmap.

Answer 3

You can use the decodebytearray method of bitmap factory like

byte[] imageAsBytes = Base64.decode(myImageData.getBytes());
Bitmap bp = BitmapFactory.decodeByteArray(imageAsBytes, 0, imageAsBytes.length);

Where myImageData is a base64 string.

If you have an array just pass that to the decodeByteArray method.