TextView代码中的设置部分字体的颜色

        mTextView = (TextView) findViewById(R.id.hello);
        SpannableStringBuilder builder = new SpannableStringBuilder(mTextView.getText().toString());
        builder.setSpan(new StyleSpan(Typeface.BOLD), 0, 5, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);  //粗体
        //ForegroundColorSpan 为文字前景色，BackgroundColorSpan为文字背景色
        ForegroundColorSpan redSpan = new ForegroundColorSpan(Color.parseColor("#CCfd5055"));
        builder.setSpan(redSpan, 0, 5, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        mTextView.setText(builder);

参考地址：点击打开链接