Android textView点击滚动(跑马灯)效果

布局文件:

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
     android:paddingBottom="@dimen/activity_vertical_margin"
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingTop="@dimen/activity_vertical_margin"
     tools:context="com.example.textview.MainActivity" >

     <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginLeft="200dp"
         android:text="数值" />

     <TextView
         android:id="@+id/tv"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginLeft="200dp"
         android:ellipsize="end"
         android:marqueeRepeatLimit="marquee_forever"
         android:scrollHorizontally="true"
         android:singleLine="true"
         android:text="莫听穿林打叶声,何妨吟啸且徐行,竹杖芒鞋轻胜马,谁怕?一蓑烟雨任平生."
         android:textSize="18sp" />

     <TextView
         android:id="@+id/tv1"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginLeft="200dp"
         android:ellipsize="end"
         android:marqueeRepeatLimit="marquee_forever"
         android:scrollHorizontally="true"
         android:singleLine="true"
         android:text="莫听穿林打叶声,何妨吟啸且徐行,竹杖芒鞋轻胜马,谁怕?一蓑烟雨任平生."
         android:textSize="18sp" />

 </LinearLayout>

代码:

 package com.example.textview;

 import android.app.Activity;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.TextView;

 public class MainActivity extends Activity {
     private TextView tv, tv1;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         initView();
     }

     private void initView() {
         tv = (TextView) findViewById(R.id.tv);
         tv.setOnClickListener(new OnClickListener() {

             @Override
             public void onClick(View v) {
                 // TODO Auto-generated method stub
                 tv.setEllipsize(TextUtils.TruncateAt.MARQUEE);
                 tv.setFocusable(true);
                 tv.setFocusableInTouchMode(true);
                 tv.requestFocus();

             }
         });

         tv1 = (TextView) findViewById(R.id.tv1);
         tv1.setOnClickListener(new OnClickListener() {

             @Override
             public void onClick(View v) {
                 // TODO Auto-generated method stub
                 tv1.setEllipsize(TextUtils.TruncateAt.MARQUEE);
                 tv1.setFocusable(true);
                 tv1.setFocusableInTouchMode(true);
                 tv1.requestFocus();

             }
         });

     }
 }