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。

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: 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: 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: 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: 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: 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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