Android仿淘宝头条基于TextView实现上下滚动通知效果

<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android" 
> 
<translate 
android:duration="1500" 
android:fromYDelta="100%p" 
android:toYDelta="0"> 
</translate> 
</set> 

<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android"> 
<translate 
 android:duration="1500" 
 android:fromYDelta="0" 
 android:toYDelta="-100%p"> 
</translate> 
</set> 

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 xmlns:tools="http://schemas.android.com/tools" 
 android:id="@+id/activity_main" 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 tools:context="com.spore.marqueeview.MainActivity" > 
 <ViewFlipper 
  android:id="@+id/marquee_view" 
  android:layout_width="match_parent" 
  android:layout_height="wrap_content" 
  android:autoStart="true" 
  android:background="#fff" 
  android:flipInterval="2500" 
  android:inAnimation="@anim/anim_marquee_in" 
  android:outAnimation="@anim/anim_marquee_out" > 
 </ViewFlipper> 
</RelativeLayout> 

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 android:layout_width="match_parent" 
 android:layout_height="wrap_content" 
 android:orientation="horizontal" > 
 <ImageView 
  android:layout_width="wrap_content" 
  android:layout_height="wrap_content" 
  android:padding="5dp" 
  android:src="@drawable/icon_home_notice" /> 
 <TextView 
  android:layout_width="match_parent" 
  android:layout_height="match_parent" 
  android:gravity="center_vertical" 
  android:paddingLeft="10dp" 
  android:singleLine="true" 
  android:text="[2017-02-28 08:00]通知：上午九点整开会！" 
  android:textSize="18sp" /> 
</LinearLayout> 

package com.iponkan.textviewupdown; 
import com.example.textviewupdown.R; 
import android.os.Bundle; 
import android.app.Activity; 
import android.view.Menu; 
import android.view.View; 
import android.widget.ViewFlipper; 
public class MainActivity extends Activity { 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_main); 
  // 为ViewFlipper添加广告条 
  ViewFlipper vf = (ViewFlipper) findViewById(R.id.marquee_view); 
  vf.addView(View.inflate(this, R.layout.noticelayout, null)); 
  vf.addView(View.inflate(this, R.layout.noticelayout, null)); 
  vf.addView(View.inflate(this, R.layout.noticelayout, null)); 
 } 
 @Override 
 public boolean onCreateOptionsMenu(Menu menu) { 
  // Inflate the menu; this adds items to the action bar if it is present. 
  getMenuInflater().inflate(R.menu.main, menu); 
  return true; 
 } 
}