Android：TextView

1.设置部分文字颜色：

SpannableStringBuilder builder = new SpannableStringBuilder(textview.getText().toString());ForegroundColorSpan redSpan = new ForegroundColorSpan(Color.parseColor("#ff0000"));builder.setSpan(redSpan,2,7, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);(包左不包右)
textview.setText(builder);