Android仿京东快报信息滚动效果

package com.test.scrolltransptoolbar;import android.content.Context;import android.graphics.Color;import android.os.Handler;import android.text.TextUtils;import android.util.AttributeSet;import android.util.TypedValue;import android.view.GestureDetector;import android.view.Gravity;import android.view.MotionEvent;import android.view.View;import android.view.ViewGroup;import android.view.animation.AnimationUtils;import android.widget.TextView;import android.widget.ViewFlipper;import java.util.List;/** * Created by Administrator on 2017/8/31. */public class JinDongKuaiBaoView extends ViewFlipper implements View.OnClickListener, View.OnTouchListener {  private Context context;  private List<String> mNotices;  public final static int SCROLL_TYPE_VERTICAL = 0;  public final static int SCROLL_TYPE_HORIZONTAL = 1;  private GestureDetector mGestureDetector;  public static final int FLING_MIN_DISTANCE = 80;  public static final int FLING_MIN_VELOCITY = 120;  private boolean isFling=false;  public JinDongKuaiBaoView(Context context) {    super(context);  }  Handler handler=new Handler();  public JinDongKuaiBaoView(Context context, AttributeSet attrs) {    super(context, attrs);    init(context);  }  private void init(Context context) {    // mGestureDetector = new GestureDetector(new simpleGestureListener());    this.context = context;    // 轮播间隔时间为3s    setFlipInterval(3000);    // 内边距5dp    setPadding(dp2px(5f), dp2px(5f), dp2px(5f), dp2px(5f));     setScrollType(SCROLL_TYPE_VERTICAL);    // setOnTouchListener(this);  }  private int dp2px(float dpValue) {    return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,        dpValue,        context.getResources().getDisplayMetrics());  }  public void setScrollType(int type) {    clearAnimation();    switch (type) {      case SCROLL_TYPE_VERTICAL://垂直滚动动画设置        // 设置enter和leave动画        setInAnimation(AnimationUtils.loadAnimation(context, R.anim.notify_in));        setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.notify_out));        break;      case SCROLL_TYPE_HORIZONTAL://水平滚动动画设置        setInAnimation(AnimationUtils.loadAnimation(context, R.anim.horizontal_notify_in));        setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.horizontal_notify_out));        break;      default:        break;    }  }  /**   * 添加需要轮播展示的公告   *   * @param notices   */  public void addNotice(List<String> notices) {    this.mNotices = notices;    removeAllViews();    for (int i = 0; i < mNotices.size(); i++) {      // 根据公告内容构建一个TextView      String notice = notices.get(i);      TextView textView = new TextView(context);      textView.setSingleLine();      textView.setText(notice);      textView.setTextSize(13f);      textView.setEllipsize(TextUtils.TruncateAt.END);      textView.setTextColor(Color.parseColor("#666666"));      textView.setGravity(Gravity.CENTER_VERTICAL);      // 将公告的位置设置为textView的tag方便点击是回调给用户      textView.setTag(i);       textView.setOnClickListener(this);      // 添加到ViewFlipper      JinDongKuaiBaoView.this.addView(textView, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));    }  }  @Override  public void onClick(View v) {    int position = (int) v.getTag();    String notice = (String) mNotices.get(position);    if (mOnNoticeClickListener != null) {      mOnNoticeClickListener.onNotieClick(position, notice);    }  }//  private void ToRightAnimation() {//    clearAnimation();//    setInAnimation(AnimationUtils.loadAnimation(context, R.anim.right_notify_in));//    setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.right_notify_out));//  }////  private void ToLeftAnimation() {//    clearAnimation();//    setInAnimation(AnimationUtils.loadAnimation(context, R.anim.horizontal_notify_in));//    setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.horizontal_notify_out));//  }  @Override  public boolean onTouch(View v, MotionEvent event) {    mGestureDetector.onTouchEvent(event);    return true ;  }  /**   * 通知点击监听接口   */  public interface OnNoticeClickListener {    void onNotieClick(int position, String notice);  }  private OnNoticeClickListener mOnNoticeClickListener;  /**   * 设置通知点击监听器   *   * @param onNoticeClickListener 通知点击监听器   */  public void setOnNoticeClickListener(OnNoticeClickListener onNoticeClickListener) {    mOnNoticeClickListener = onNoticeClickListener;  }//  private class simpleGestureListener extends GestureDetector.SimpleOnGestureListener {//    @Override//    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {//      isFling=true;//      if (e1.getX() - e2.getX() > FLING_MIN_DISTANCE//          && Math.abs(velocityX) > FLING_MIN_VELOCITY) {//        // 当像左侧滑动的时候//        //设置View进入屏幕时候使用的动画//        //设置View退出屏幕时候使用的动画//         ToLeftAnimation();//        showNext();//      } else if (e2.getX() - e1.getX() > FLING_MIN_DISTANCE//          && Math.abs(velocityX) > FLING_MIN_VELOCITY) {//        // 当像右侧滑动的时候//        ToRightAnimation();//        showPrevious();//      }//      handler.postDelayed(new Runnable() {//        @Override//        public void run() {//          startFlipping();//        }//      },0);////      return true;//    }//  }}

package com.test.scrolltransptoolbar;import android.app.Activity;import android.os.Bundle;import android.view.GestureDetector;import android.view.MotionEvent;import android.view.View;import android.widget.Toast;import java.util.ArrayList;import java.util.List;/** * Created by Administrator on 2017/8/31. */public class ViewFlipperActivity extends Activity implements JinDongKuaiBaoView.OnNoticeClickListener {  private JinDongKuaiBaoView jinDongKuaiBaoView;  private GestureDetector gestureDetector;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_viewflipper);    jinDongKuaiBaoView = (JinDongKuaiBaoView) findViewById(R.id.jindongkuaibaoview);    List<String> notices = new ArrayList<>();    notices.add("大促销下单拆福袋，亿万新年红包随便拿");    notices.add("家电五折团，抢十亿无门槛现金红包");    notices.add("星球大战剃须刀首发送200元代金券");    jinDongKuaiBaoView.setScrollType(JinDongKuaiBaoView.SCROLL_TYPE_HORIZONTAL);    jinDongKuaiBaoView.addNotice(notices);    jinDongKuaiBaoView.startFlipping();    jinDongKuaiBaoView.setOnNoticeClickListener(this);  }  @Override  public void onNotieClick(int position, String notice) {    Toast.makeText(ViewFlipperActivity.this,"position"+position,Toast.LENGTH_LONG).show();  }}

//设置从左开始滚动还是，水平向上开始滚动jinDongKuaiBaoView.setScrollType(JinDongKuaiBaoView.SCROLL_TYPE_HORIZONTAL);//开始滚动的方法jinDongKuaiBaoView.startFlipping();// 轮播间隔时间为3ssetFlipInterval(3000);