ViewFlipper实现上下滚动字幕 三种方法实现

Xml布局

<?xml version="1.0" encoding="utf-8"?>
  <RelativeLayout
    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: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.XiaoYuanKeji.niubi.MainActivity">
    <Button
        android:id="@+id/btn1"
        android:text="下一个"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>
    <ViewFlipper
        android:background="@android:color/holo_red_light"
        android:layout_centerInParent="true"
        android:id="@+id/viewflipper"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <TextView
            android:id="@android:id/text1"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:gravity="center"
            android:textSize="20sp"
            android:text="天王盖地虎。。。。"/>
        <TextView
            android:id="@android:id/text2"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:gravity="center"
            android:textSize="20sp"
            android:text="宝塔镇河妖。。。。!"/>
    </ViewFlipper>

  </RelativeLayout>

动画：

       in:

    <?xml version="1.0" encoding="utf-8"?>
     <set xmlns:android="http://schemas.android.com/apk/res/android">
     <translate android:fromYDelta="100%p" 
               android:toYDelta="0"
               android:duration="500" />
     </set>

       out:

   <?xml version="1.0" encoding="utf-8"?>
   <set xmlns:android="http://schemas.android.com/apk/res/android">
     <translate android:fromYDelta="0" 
                android:toYDelta="-100%p"
                android:duration="500"/>
    </set>

java

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    protected TextView mText1;
    protected TextView mText2;
    protected ViewFlipper mViewflipper;
    protected Button mBtn1;


         private Handler mHandler = new Handler(new Handler.Callback() {
                @Override
                   public boolean handleMessage(Message message) {
                          //mViewflipper.showNext(); 这是第二种方法Timer
                    return false;
                    }
           });


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

                //添加动画
        Animation animation = AnimationUtils.loadAnimation(this, R.anim.in);
        Animation animation1 = AnimationUtils.loadAnimation(this, R.anim.out);
        mViewflipper.setInAnimation(animation);
        mViewflipper.setOutAnimation(animation1);

                 //轮循   第一种方法
        mHandler.post(new Runnable() {
            @Override
            public void run() {
                mViewflipper.showNext();
                mHandler.postDelayed(this, 1000);
            }
        });
                                 /*
                                       第二种方法Timer
                                    Timer timer = new Timer();
                                    timer.schedule(new TimerTask() {
                                      @Override
                                                 public void run() {
                                                            mHandler.sendEmptyMessage(0);
                                                  }
                                       },1000,1000);*/


 }


    private void initView() {
        mText1 = (TextView) findViewById(android.R.id.text1);
        mText2 = (TextView) findViewById(android.R.id.text2);
        mViewflipper = (ViewFlipper) findViewById(R.id.viewflipper);
        mBtn1 = (Button) findViewById(R.id.btn1);
        mBtn1.setOnClickListener(MainActivity.this);
        mText1 = (TextView) findViewById(android.R.id.text1);
        mText2 = (TextView) findViewById(android.R.id.text2);
    }
                //点击事件的显示下一个
    @Override
    public void onClick(View view) {
        if (view.getId() == R.id.btn1) {
            mViewflipper.showNext();
        }
    }
}

方法三：更加简单，两句搞定。

//开始自动切换
mViewflipper.starFilpping();
//切换时间间隔
mViewflipper.setFlipInterval(2000);