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
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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