android textured text

Question

How can I make a text with texture instead of text color or gradient(for example png file)? Something like this. I understand the logic, that I should make text color transp

Answer 1

Here's a way of doing it using PorterDuffXfermode.

public class MainActivity extends Activity {
    private EditText mEditText;
    private ImageView mImageView;
    private Bitmap mTexture;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mEditText = (EditText) findViewById(R.id.activity_main_edittext);
        mImageView = (ImageView) findViewById(R.id.activity_main_image);

        mTexture = BitmapFactory.decodeResource(getResources(),
                R.drawable.texture);
    }

    public void onTextCreate(View v) {
        final String text = mEditText.getEditableText().toString();

        Bitmap result = Bitmap.createBitmap(mTexture.getWidth(),
                mTexture.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(result);
        Paint paint = new Paint();
        paint.setAntiAlias(true);
        paint.setTextSize(200);
        paint.setARGB(255, 0, 0, 0);

        canvas.drawText(text, 200, 200, paint);
        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
        canvas.drawBitmap(mTexture, 0, 0, paint);
        paint.setXfermode(null);

        mImageView.setImageBitmap(result);
    }
}

The layout is pretty simple:

This code with write text using canvas.drawText(). If you want to use a regular TextView, you can:

• create the TextView
• Set the text
• drawing the TextView into a canvas using textView.draw(canvas);
• Instead of doing canvas.drawText() use canvas.drawBitmap()