how to merge Android canvas?
<p>I was wondering, how do I merge/join Android canvases. In the code below I have <strong>cnv_left</strong> which contains a left part of a button. <strong>cnv_center</strong> contains the center part. And <strong>cnv_text</strong> contains text.</p>

<p>What I need is to merge them all in <strong>cnv_joined</strong> , so that</p>

<ul>
<li><strong>cnv_left</strong> would go first.</li>
<li>then <strong>cnv_center</strong>.</li>
<li><strong>cnv_text</strong> would be in center of cnv_center.</li>
<li>and a flipped <strong>cnv_left</strong> would be the last.</li>
</ul>

<p>Here's my code so far:</p>

<pre><code> public void drawButt()
 {

      float buttonScale = 1.0f;     /// general button scale ratio
      float buttonScaleCnt = 6.0f;  /// button's center part stretch ratio

      LinearLayout LinLay = (LinearLayout)findViewById(R.id.linearLayout1);
      ImageView iv1 = new ImageView(this);

      Bitmap bit_left = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888);
      Canvas cnv_left = new Canvas(bit_left);
      cnv_left.scale(buttonScale,buttonScale);
      SVG svg_left = SVGParser.getSVGFromResource(getResources(), R.raw.btleft);
  Picture picture_left = svg_left.getPicture();
  picture_left.draw(cnv_left);

  Bitmap bit_center = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888);
      Canvas cnv_center = new Canvas(bit_center);
      cnv_center.scale(buttonScaleCnt, buttonScale);
      SVG svg_center = SVGParser.getSVGFromResource(getResources(), R.raw.btcnt);
  Picture picture_cnt = svg_center.getPicture();
  picture_cnt.draw(cnv_center);

  Bitmap bit_text = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888);
      Canvas cnv_text = new Canvas(bit_text);
  cnv_text.scale(buttonScale, buttonScale);
  Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG); paint.setColor(Color.WHITE); paint.setTextSize(20);
  cnv_text.drawText("R", 2, 30, paint);


  Bitmap bit_joined = Bitmap.createBitmap(200, 200, Bitmap.Config.ARGB_8888);
  Canvas cnv_joined = new Canvas(bit_joined);  
  /// somehow need to somehow join the above canvases into this cnv_joined...


      iv1.setImageBitmap(bit_joined);
      iv1.setPadding(5, 5, 5, 5);

      LinLay.addView(iv1); 

 }
</code></pre>

<p>Any ideas? Oh, and one more thing, when I create empty bitmaps for my canvas ( Bitmap.createBitmap(100, 100... ), does it matter what size I give them? If yes, where should I get the correct sizes for them?</p>

<p>Thanks!</p>
