Android自定义wheelview实现滚动日期选择器

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#fff"
  >

 <com.example.wheelview.loopview.LoopView
  android:layout_marginTop="50dp"
  android:id="@+id/loopView"
  android:layout_width="match_parent"
  android:layout_height="150dp"
  app:awv_textsize="18"
  />

</LinearLayout>

package com.example.wheelview.activity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;
import com.example.wheelview.R;
import com.example.wheelview.loopview.LoopView;
import com.example.wheelview.loopview.OnItemSelectedListener;

import java.util.ArrayList;

public class MyActivity extends Activity {

 private Toast toast;

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

  final LoopView loopView = (LoopView) findViewById(R.id.loopView);

  ArrayList<String> list = new ArrayList<String>();
  for (int i = 0; i < 15; i++) {
   list.add("item " + i);
  }
  //设置是否循环播放
//  loopView.setNotLoop();
  //滚动监听
  loopView.setListener(new OnItemSelectedListener() {
   @Override
   public void onItemSelected(int index) {
    if (toast == null) {
     toast = Toast.makeText(MyActivity.this, "item " + index, Toast.LENGTH_SHORT);
    }
    toast.setText("item " + index);
    toast.show();
   }
  });

  //设置原始数据
  loopView.setItems(list);


 }

}

//中间选中的字体颜色：  灰色：0xff313131，橙色：0xffec6f1a
centerTextColor = typedArray.getInteger(R.styleable.androidWheelView_awv_centerTextColor, 0xffec6f1a);
//没被选中的字体的颜色 
outerTextColor = typedArray.getInteger(R.styleable.androidWheelView_awv_outerTextColor, 0xffafafaf);
//中间字体上下两条横线的颜色
dividerColor = typedArray.getInteger(R.styleable.androidWheelView_awv_dividerTextColor, 0xffc5c5c5);