Android Canvas Draw Text On Bitmap

Android. Draw text on Bitmap.

There is described how to draw some text on an image from the resource.

I wanted to make dynamically text and draw text in a circle on the template of the image.
My template for painting:

I implemented next function:

          //Change text size according text length                      private fun            getTextSize(text1: String, text2: String) =
            if            (text1.length            >= 21 || text2.length            >= 20) 90            else            125              private fun              drawTextToBitmap(context: Context, gResId: Int, textSize: Int = 78, text1: String, text2: String): Bitmap {
              val              resources = context.resources
                            val              scale = resources.displayMetrics.density
                var              bitmap = BitmapFactory.decodeResource(resources, gResId)
                          var              bitmapConfig = bitmap.config;
              // set default bitmap config if none
                            if              (bitmapConfig ==              null) {
              bitmapConfig = android.graphics.Bitmap.Config.ARGB_8888
              }
              // resource bitmaps are imutable,
                // so we need to convert it to mutable one
              bitmap = bitmap.copy(bitmapConfig,              true)
                          val              canvas = Canvas(bitmap)
              // new antialised Paint
                            val              paint = Paint(Paint.ANTI_ALIAS_FLAG)
                            paint.color              = Color.rgb(93, 101, 67)
              // text size in pixels
              paint.textSize              = (textSize * scale).roundToInt().toFloat()
              //custom fonts
                                val            fontFace = ResourcesCompat.getFont(context, R.font.acrobat)
            paint.typeface            = Typeface.create(fontFace, Typeface.NORMAL)
            // text shadow
            paint.setShadowLayer(1f, 0f, 1f, Color.WHITE)              // draw text to the Canvas center
                            val              bounds = Rect()
                                //draw the first text
            paint.getTextBounds(text1, 0, text1.length, bounds)
            var            x = (bitmap.width            - bounds.width()) / 2f - 470
            var            y = (bitmap.height            + bounds.height()) / 2f - 140
            canvas.drawText(text1, x, y, paint)                      //draw the second text
            paint.getTextBounds(text2, 0, text2.length, bounds)
            x = (bitmap.width            - bounds.width()) / 2f - 470
            y = (bitmap.height            + bounds.height()) / 2f + 235
            canvas.drawText(text2, x, y, paint)              return              bitmap
}

After that I tested my application and I get exception:

java.lang.RuntimeException: Canvas: trying to draw too large(136676736bytes) bitmap.

For example, it's not worth loading a 1024x768 pixel image into memory if it will eventually be displayed in a 128x96 pixel thumbnail in an ImageView. To solve this should read this documentation. But I didn't need display in the ImageView, because I send the bitmap to a SDK.

T h e result:

Thus I could created the image for posting in social network (vk.com).

Google play: https://play.google.com/store/apps/details?id=ru.a1024bits.bytheway.release