Android：在替換範圍內繪製的文本未顯示

Question

我試圖在替換範圍的文本視圖中實現計數類徽章效果。我使用drawable（用xml定義的圓圈）作爲背景，因爲canvas.drawCircle方法似乎不起作用。我想在這個drawable的頂部繪製文本，但是，無論我嘗試什麼，它都不會出現。有沒有人知道這個問題會是什麼？

我的自定義更換跨度類：

public class CircleBackgroundSpan extends ReplacementSpan { 
    private Drawable circle; 

    public CircleBackgroundSpan(Drawable drawable) 
    { 
     circle = drawable; 
    } 

    @Override 
    public int getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm) { 

     int textWidth = Math.round(measureText(paint, text, start, end)); 
     return Math.max(textWidth, circle.getIntrinsicWidth()); 
    } 

    @Override 
    public void draw(Canvas canvas, CharSequence text, int start, int end, float x, int top, int y, int bottom, Paint paint) { 
     Rect bounds = new Rect(); 
     circle.setBounds((int) x, top, (int) x + circle.getIntrinsicWidth(), top + circle.getIntrinsicHeight()); 
     circle.draw(canvas); 
     paint.setColor(0x0000A8); 
     paint.setStyle(Paint.Style.FILL_AND_STROKE); 
     paint.setTextAlign(Paint.Align.CENTER); 
     paint.setTextSize(16); 
     paint.getTextBounds(text.toString(), 0, text.subSequence(start, end).length(), bounds); 
     canvas.drawText(text, start, end, x + circle.getIntrinsicWidth()/2f , y, paint); 
    } 

    private float measureText(Paint paint, CharSequence text, int start, int end) 
    { 
     return paint.measureText(text, start, end); 
    } 

} 

用法：

SpannableString spannableString = new SpannableString(selected+" items selected"); 
String numberString = String.valueOf(selected); 
spannableString.setSpan(new CircleBackgroundSpan(getResources().getDrawable(R.drawable.multiselect_circle)), 0, numberString.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE); 
multiselect.setText(spannableString, TextView.BufferType.SPANNABLE); 

而結果：

我想要得到的東西是這樣的：

任何想法？

Answer 1

原來問題出在設置塗料顏色。在將paint.setColor(0x0000A8)更改爲paint.setColor(Color.parseColor("#0000A8")後，顯示文本。