实现下划线及颜色设置:
    
    
   
   public class AtActivity extends Activity {
   
   
   
   
   
   
   LinearLayout ll;
   
   /** Called when the activity is first created. */
   
   @Override
   
   public void onCreate(Bundle savedInstanceState) {
   
   super.onCreate(savedInstanceState);
   
   setContentView(R.layout.main);
   
   ll=(LinearLayout)findViewById(R.id.ll);
   
   TextView tv=new TextView(this);
   
    
     tv.getPaint().setFlags(Paint.UNDERLINE_TEXT_FLAG);//下划线
    
   
   
   tv.setText(“使用代码实现下划线样式”);
   
   tv.setTextColor(Color.WHITE);
   
   ll.addView(tv);
   tv=new TextView(this);
   
   
    
     tv.setText(Html.fromHtml(“<u>使用html实现下划线样式</u>”));
    
   
   
   ll.addView(tv);
   }
   
   }
    设置超链接样式:默认的超链接是蓝色的,我们现在设置成前景
    
     红色
    
   
    
     
    
   
    
     
    
   
    public class AtActivity extends Activity {
    
    
    
    
    
    
    
    LinearLayout ll;
    
    /** Called when the activity is first created. */
    
    @Override
    
    public void onCreate(Bundle savedInstanceState) {
    
    
    super.onCreate(savedInstanceState);
    
    setContentView(R.layout.main);
    
    ll=(LinearLayout)findViewById(R.id.ll);
    
    TextView tv=new TextView(this);
    tv.setText(Html.fromHtml(“<a href=\”http://blog.csdn.net/CAIYUNFREEDOM\”>自定义的超链接样式</a>”));
    
    tv.setMovementMethod(LinkMovementMethod.getInstance());
    
    CharSequence text  =  tv.getText();
    
    if (text instanceof Spannable){
    int  end  =  text.length();
    
    Spannable sp  =  (Spannable)tv.getText();
    
    URLSpan[] urls = sp.getSpans( 0 , end, URLSpan.class );
    SpannableStringBuilder style = new  SpannableStringBuilder(text);
    
    style.clearSpans(); // should clear old spans
    
    for (URLSpan url : urls){
    
    
    
    URLSpan myURLSpan=   new  URLSpan(url.getURL());
    
    
    
    style.setSpan(myURLSpan,sp.getSpanStart(url),sp.getSpanEnd(url),Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    
    
    
    
     
      style.setSpan(new ForegroundColorSpan(Color.RED), sp.getSpanStart(url), sp.getSpanEnd(url),
     
    
    Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);//设置前景色为红色
    
    }
    
    tv.setText(style);
    
    }
ll.addView(tv);
    tv=new TextView(this);
    
    tv.setText(Html.fromHtml(“<a href=\”http://blog.csdn.net/CAIYUNFREEDOM\”>默认的超链接样式</a>”));
    
    tv.setMovementMethod(LinkMovementMethod.getInstance());
    
    ll.addView(tv);
    }
    
    }
   
    
     
    
   
    
     
    
   
 
