Android如何实现年月选择器功能

开发过程中，年月的选择功能还是比较常见的，像这种功能点比较常见，要是每次都要自己手动去写，这无疑会耗费比较多的时间与精力，今天给大家介绍一个第三方库，使用该库来完成年月选择器功能。

一、效果图

二、实现步骤：

1、依赖库

implementation 'cn.aigestudio.wheelpicker:wheelpicker:1.1.3'

2、xml布局文件

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.constraintlayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 android:layout_width="match_parent"
 android:layout_height="200dp"
 android:background="#ffffff">

 <textview
  android:id="@+id/cancel"
  android:layout_width="60dp"
  android:layout_height="40dp"
  android:gravity="center"
  android:text="取消"
  android:textcolor="#666666"
  android:textsize="17sp"
  app:layout_constraintleft_toleftof="parent"
  app:layout_constrainttop_totopof="parent" />

 <textview
  android:id="@+id/ok"
  android:layout_width="60dp"
  android:layout_height="40dp"
  android:gravity="center"
  android:text="确定"
  android:textcolor="#3c76ff"
  android:textsize="17sp"
  app:layout_constraintright_torightof="parent"
  app:layout_constrainttop_totopof="parent" />

 <view
  android:id="@+id/view_line"
  android:layout_width="match_parent"
  android:layout_height="1dp"
  android:background="#e5e5e5"
  app:layout_constraintleft_toleftof="parent"
  app:layout_constrainttop_tobottomof="@id/cancel" />

 <com.aigestudio.wheelpicker.wheelpicker
  android:id="@+id/mwheelpicker_1"
  android:layout_width="0dp"
  android:layout_height="0dp"
  android:layout_marginleft="30dp"
  app:layout_constraintbottom_tobottomof="parent"
  app:layout_constraintleft_toleftof="parent"
  app:layout_constraintright_toleftof="@id/mwheelpicker_2"
  app:layout_constrainttop_tobottomof="@id/view_line"
  app:wheel_atmospheric="true"
  app:wheel_curtain_color="#1886f7"
  app:wheel_curved="true"
  app:wheel_cyclic="true"
  app:wheel_indicator_color="#e5e5e5"
  app:wheel_item_text_color="#919191"
  app:wheel_item_text_size="23sp"
  app:wheel_selected_item_text_color="#000000" />

 <com.aigestudio.wheelpicker.wheelpicker
  android:id="@+id/mwheelpicker_2"
  android:layout_width="0dp"
  android:layout_height="0dp"
  android:layout_marginright="30dp"
  app:layout_constraintbottom_tobottomof="parent"
  app:layout_constraintleft_torightof="@id/mwheelpicker_1"
  app:layout_constraintright_torightof="parent"
  app:layout_constrainttop_totopof="@id/mwheelpicker_1"
  app:wheel_atmospheric="true"
  app:wheel_curtain_color="#1886f7"
  app:wheel_curved="true"
  app:wheel_cyclic="true"
  app:wheel_indicator_color="#e5e5e5"
  app:wheel_indicator_size="24sp"
  app:wheel_item_text_color="#919191"
  app:wheel_item_text_size="23sp"
  app:wheel_selected_item_text_color="#000000" />

</android.support.constraint.constraintlayout>

3、添加数据

 list<string> ceoyear = new arraylist<>();
 list<string> ceomonth = new arraylist<>();

 for (int i = 2000; i < 2051; i++) {
     ceoyear.add(i + "");
  }

 for (int i = 1; i < 13; i++) {
  ceomonth.add(i + "");
 }

4、设置选择器弹出框

 /**
  * @desc : 两个滚动器
  **/
 private void showtwowheelpicker(context context, final list<string> data1, final list<string> data2, final twowheellistener mtwowheellistener) {

  final dialog dialog = getdialog(context);
  window window = dialog.getwindow();
  window.setgravity(gravity.bottom);
  window.setlayout(viewgroup.layoutparams.match_parent, viewgroup.layoutparams.wrap_content);
  window.setcontentview(r.layout.fragment_sami);

  final wheelpicker wv1 = window.findviewbyid(r.id.mwheelpicker_1);
  final wheelpicker wv2 = window.findviewbyid(r.id.mwheelpicker_2);

  wv1.setdata(data1);
  wv2.setdata(data2);

  //取消
  window.findviewbyid(r.id.cancel).setonclicklistener(new view.onclicklistener() {
   @override
   public void onclick(view v) {
    dialog.dismiss();
   }
  });

  //确定
  window.findviewbyid(r.id.ok).setonclicklistener(new view.onclicklistener() {
   @override
   public void onclick(view v) {
    dialog.dismiss();

    if (mtwowheellistener != null) {
     mtwowheellistener.onok(data1.get(wv1.getcurrentitemposition()), data2.get(wv2.getcurrentitemposition()));
    }
   }
  });
 }

 private dialog getdialog(context context) {

  return new alertdialog.builder(context, r.style.roundcornerdialog).setcancelable(false).show();
 }

 private twowheellistener mtwowheellistener = null;

 public static interface twowheellistener {
  void onok(string str1, string str2);
 }

5、设置弹出框dialog样式

 <!--圆角的dialog样式-->
 <style name="roundcornerdialog" parent="@android:style/theme.dialog">
  <item name="android:windowframe">@null</item>
  <item name="android:windowisfloating">true</item>
  <item name="android:windowistranslucent">true</item>
  <item name="android:windownotitle">true</item>
  <item name="android:background">@android:color/transparent</item>
  <item name="android:windowbackground">@android:color/transparent</item>
  <item name="android:backgrounddimenabled">true</item>
  <item name="android:backgrounddimamount">0.6</item>
</style>

6、设置点击事件弹出

 findviewbyid(r.id.btn).setonclicklistener(new view.onclicklistener() {
   @override
   public void onclick(view v) {
    showtwowheelpicker(appbarlayoutactivity.this, ceoyear, ceomonth, new twowheellistener() {
     @override
     public void onok(string str1, string str2) {
      toast.maketext(appbarlayoutactivity.this, str1 + "年" + str2 + "日", toast.length_short).show();
     }
    });
   }
  });

四、总结

这个第三方库我这里只是做了简单的介绍，还有更多需求的还是去阅读第三方库。

第三方库地址：

https://github.com/aigestudio/wheelpicker

到这里就结束啦。

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