Android——字符高亮显示(转载)

String str="adsjoiasdjpaisdjpaidj";
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TextView textview=(TextView)findViewById(R.id.textView);
        SpannableStringBuilder style=new SpannableStringBuilder(str);
        style.setSpan(new ForegroundColorSpan(Color.RED),3,8,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        textview.setText(style);
    }