android 如何给TextView中的文字描边让文字和文字边线的颜色不同

参考:

textView = (TextView) findViewById(R.id.textview); 
SpannableStringBuilder builder = new SpannableStringBuilder(textView.getText().toString());

//ForegroundColorSpan 为文字前景色，BackgroundColorSpan为文字背景色 
ForegroundColorSpan redSpan = new ForegroundColorSpan(Color.RED); 
ForegroundColorSpan whiteSpan = new ForegroundColorSpan(Color.WHITE); 
ForegroundColorSpan blueSpan = new ForegroundColorSpan(Color.BLUE); 
ForegroundColorSpan greenSpan = new ForegroundColorSpan(Color.GREEN); 
ForegroundColorSpan yellowSpan = new ForegroundColorSpan(Color.YELLOW);

builder.setSpan(redSpan, 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
builder.setSpan(whiteSpan, 1, 2, Spannable.SPAN_INCLUSIVE_INCLUSIVE); 
builder.setSpan(blueSpan, 2, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
builder.setSpan(greenSpan, 3, 4, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
builder.setSpan(yellowSpan, 4,5, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

textView.setText(builder);