android-在可绘制图像上添加字符串？

如何解决android-在可绘制图像上添加字符串？

| 我正在尝试向

Drawable

图片添加

String

。我目前未使用

Panel

绘画，我希望保持这种状态。有什么想法或需要调用an3ѭ方法吗？ 我的图片显示如下代码：

Drawable image = getResources().getDrawable(tile_types[tileType]);      
setimageDrawable(image);

我想在此图片上添加一个“ 0”。 谢谢。     

解决方法

Sam的答案是我的出发点，但是图像没有显示，只有文字（我在Google Map上使用）。最终我得到了与

LayerDrawable

一起工作的信息。这是我的解决方案：

private Drawable createMarkerIcon(Drawable backgroundImage,String text,int width,int height) {

  Bitmap canvasBitmap = Bitmap.createBitmap(width,height,Bitmap.Config.ARGB_8888);
  // Create a canvas,that will draw on to canvasBitmap.
  Canvas imageCanvas = new Canvas(canvasBitmap);

  // Set up the paint for use with our Canvas
  Paint imagePaint = new Paint();
  imagePaint.setTextAlign(Align.CENTER);
  imagePaint.setTextSize(16f);

  // Draw the image to our canvas
  backgroundImage.draw(imageCanvas);

  // Draw the text on top of our image
  imageCanvas.drawText(text,width / 2,height / 2,imagePaint);

  // Combine background and text to a LayerDrawable
  LayerDrawable layerDrawable = new LayerDrawable(
             new Drawable[]{backgroundImage,new BitmapDrawable(canvasBitmap)});
  return layerDrawable;
}

    ,

Drawable image = getResources().getDrawable(tile_types[tileType]);
// Store our image size as a constant
final int IMAGE_WIDTH = image.getIntrinsicWidth();
final int IMAGE_HEIGHT = image.getIntrinsicHeight();

// You can also use Config.ARGB_4444 to conserve memory or ARGB_565 if 
// you don\'t have any transparency.
Bitmap canvasBitmap = Bitmap.createBitmap(IMAGE_WIDTH,IMAGE_HEIGHT,Bitmap.Config.ARGB_8888);
// Create a canvas,that will draw on to canvasBitmap. canvasBitmap is
// currently blank.
Canvas imageCanvas = new Canvas(canvasBitmap);
// Set up the paint for use with our Canvas
Paint imagePaint = new Paint();
imagePaint.setTextAlign(Align.CENTER);
imagePaint.setTextSize(16f);

// Draw the image to our canvas
image.draw(imageCanvas);
// Draw the text on top of our image
imageCanvas.drawText(\"Sample Text\",IMAGE_WIDTH / 2,IMAGE_HEIGHT / 2,imagePaint);
// This is the final image that you can use 
BitmapDrawable finalImage = new BitmapDrawable(canvasBitmap);

    ,如果由于调整大小而导致结果文本看起来为“角”，则最好使用带有这些参数的ѭ9而不是普通

Paint

：

TextPaint textPaint = new TextPaint(TextPaint.ANTI_ALIAS_FLAG | TextPaint.LINEAR_TEXT_FLAG);