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Android 是一种基于 Linux 的自由及开放源代码的操作系统,主要使用于移动设备,如智能手机和平板电脑,由 Google 公司和开放手机联盟领导及开发。尚未有统一中文名称,中国大陆地区较多人使用 "安卓" 或 "安致"。
这篇文章主要为大家详细介绍了 Android 自定义控件之日期选择控件的使用方法,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
Android 日期选择控件效果如下:
调用的代码:
- @OnClick(R.id.btn0)
- public void btn0() {
- final AlertDialog dialog = new AlertDialog.Builder(context).create();
- dialog.show();
- Window window = dialog.getWindow();
- window.setContentView(R.layout.dialog_change_date);
- window.setBackgroundDrawable(new ColorDrawable(0x00000000)); // 处理5.0以上对话框的白边问题
- window.setGravity(Gravity.BOTTOM);
- final DatePickerView datePickerView = (DatePickerView) window.findViewById(R.id.datePickerView);
- //打开页面时需要选中的日期 TODO
- datePickerView.setDate(2015, 5, 11);
- // datePickerView.setDate(birthdayArray[0], birthdayArray[1], birthdayArray[2]);
- final int[] birthdayArray = new int[3];
- datePickerView.addOnSelectedChangingListener(new DatePickerView.OnSelectedChangedListener() {
- @Override
- public void OnSelectedChanged(int[] oldValue, int[] newValue) {
- birthdayArray[0] = newValue[0];
- birthdayArray[1] = newValue[1];
- birthdayArray[2] = newValue[2];
- }
- });
- window.findViewById(R.id.tvCancel).setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- dialog.dismiss();
- }
- });
- window.findViewById(R.id.tvOK).setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- dialog.dismiss();
- btn0.setText(birthdayArray[0] + "年" + birthdayArray[1] + "月" + birthdayArray[2] + "日");
- }
- });
- }
1.WheelView 源码 (有修改)
2.xml 布局文件
- <?xml version="1.0" encoding="utf-8"?>
- <!--widget_date_picker.xml-->
- <!--注意修改页面自定义控件的包名-->
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:orientation="horizontal">
- <de.bvb.rxdemo.widget.DateSelectWidget.wheelview.WheelView
- android:id="@+id/wheelViewYear"
- android:layout_width="0dp"
- android:layout_height="match_parent"
- android:layout_gravity="center"
- android:layout_weight="1"/>
- <de.bvb.rxdemo.widget.DateSelectWidget.wheelview.WheelView
- android:id="@+id/wheelViewMonth"
- android:layout_width="0dp"
- android:layout_height="match_parent"
- android:layout_gravity="center"
- android:layout_weight="1"/>
- <de.bvb.rxdemo.widget.DateSelectWidget.wheelview.WheelView
- android:id="@+id/wheelViewDay"
- android:layout_width="0dp"
- android:layout_height="match_parent"
- android:layout_gravity="center"
- android:layout_weight="1"/>
- </LinearLayout>
- <?xml version="1.0" encoding="utf-8"?>
- <!--dialog_change_date.xml-->
- <!--注意修改页面自定义控件的包名-->
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_width="match_parent"
- android:layout_height="match_parent"
- android:background="@android:color/transparent"
- android:gravity="bottom"
- android:orientation="vertical">
- <LinearLayout
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:background="@android:color/white"
- android:orientation="vertical">
- <LinearLayout
- android:layout_width="match_parent"
- android:layout_height="48dp"
- android:orientation="horizontal">
- <TextView
- android:id="@+id/tvCancel"
- android:layout_width="0dp"
- android:layout_height="match_parent"
- android:layout_weight="1"
- android:background="#F9F9F9"
- android:gravity="center"
- android:text="取消"
- android:textColor="#43AAFC"/>
- <View
- android:layout_width="1px"
- android:layout_height="match_parent"
- android:background="#D7D7D7"/>
- <TextView
- android:id="@+id/tvOK"
- android:layout_width="0dp"
- android:layout_height="match_parent"
- android:layout_weight="1"
- android:background="#F9F9F9"
- android:gravity="center"
- android:text="确定"
- android:textColor="#43AAFC"/>
- </LinearLayout>
- <View
- android:layout_width="match_parent"
- android:layout_height="1px"
- android:background="#D7D7D7"/>
- <de.bvb.rxdemo.widget.DateSelectWidget.DatePickerView
- android:id="@+id/datePickerView"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"/>
- </LinearLayout>
- </LinearLayout>
3.java 文件
- package de.bvb.rxdemo.widget.DateSelectWidget;
- import android.content.Context;
- import android.util.AttributeSet;
- import android.view.LayoutInflater;
- import android.view.View;
- import android.widget.LinearLayout;
- import android.widget.TextView;
- import java.util.ArrayList;
- import de.bvb.rxdemo.R;
- import de.bvb.rxdemo.widget.DateSelectWidget.wheelview.OnWheelChangedListener;
- import de.bvb.rxdemo.widget.DateSelectWidget.wheelview.OnWheelScrollListener;
- import de.bvb.rxdemo.widget.DateSelectWidget.wheelview.WheelView;
- import de.bvb.rxdemo.widget.DateSelectWidget.wheelview.adapter.AbstractWheelTextAdapter1;
- public class DatePickerView extends LinearLayout {
- private static final int YEAR_MIN = 1950;
- private static final int YEAR_MAX = 2020;
- private int year = YEAR_MIN;
- private int month = 1;
- private int day = 1;
- private ArrayList < Integer > yearList = new ArrayList < >(YEAR_MAX - YEAR_MIN + 1);
- private ArrayList < Integer > monthList = new ArrayList < >(12);
- private ArrayList < Integer > dayList = new ArrayList < >(31);
- private DateTextAdapter yearAdapter;
- private DateTextAdapter monthAdapter;
- private DateTextAdapter dayAdapter;
- private Context context;
- private WheelView wheelViewYear;
- private WheelView wheelViewMonth;
- private WheelView wheelViewDay;
- public DatePickerView(Context context) {
- this(context, null);
- }
- public DatePickerView(Context context, AttributeSet attrs) {
- this(context, attrs, 0);
- }
- public DatePickerView(Context context, AttributeSet attrs, int defStyleAttr) {
- super(context, attrs, defStyleAttr);
- this.context = context;
- init();
- }
- private void init() {
- for (int i = YEAR_MIN; i < YEAR_MAX + 1; i++) {
- yearList.add(i);
- }
- for (int i = 1; i < 13; i++) {
- monthList.add(i);
- }
- for (int i = 1; i < 32; i++) {
- dayList.add(i);
- }
- LayoutInflater.from(context).inflate(R.layout.widget_date_picker, this);
- // View.inflate(context, R.layout.widget_date_picker, this);
- wheelViewYear = (WheelView) findViewById(R.id.wheelViewYear);
- wheelViewMonth = (WheelView) findViewById(R.id.wheelViewMonth);
- wheelViewDay = (WheelView) findViewById(R.id.wheelViewDay);
- wheelViewYear.setCyclic(true); // 可循环滚动
- wheelViewMonth.setCyclic(true); // 可循环滚动
- wheelViewDay.setCyclic(true); // 可循环滚动
- yearAdapter = new DateTextAdapter(context);
- monthAdapter = new DateTextAdapter(context);
- dayAdapter = new DateTextAdapter(context);
- yearAdapter.setList(yearList);
- monthAdapter.setList(monthList);
- dayAdapter.setList(dayList);
- wheelViewYear.setViewAdapter(yearAdapter);
- wheelViewMonth.setViewAdapter(monthAdapter);
- wheelViewDay.setViewAdapter(dayAdapter);
- wheelViewYear.addChangingListener(new OnWheelChangedListener() {@Override public void onChanged(WheelView wheel, int oldValue, int newValue) {
- year = YEAR_MIN + newValue;
- int days = calcDay(year, month); // days=28
- dayList = getDayList(days);
- dayAdapter.setList(dayList);
- if (day > days) {
- dayAdapter.currentIndex = days - 1;
- wheelViewDay.setCurrentItem(dayAdapter.currentIndex);
- } else {
- dayAdapter.currentIndex = day - 1; // day = 30
- }
- if (onSelectedChangedListener != null) {
- onSelectedChangedListener.OnSelectedChanged(parseInt2Array(YEAR_MIN + oldValue, month, day), getSelectDate());
- }
- }
- });
- wheelViewMonth.addChangingListener(new OnWheelChangedListener() {@Override public void onChanged(WheelView wheel, int oldValue, int newValue) {
- month = 1 + newValue;
- int days = calcDay(year, month); // days=28
- dayList = getDayList(days);
- dayAdapter.setList(dayList);
- if (day > days) {
- dayAdapter.currentIndex = days - 1;
- wheelViewDay.setCurrentItem(dayAdapter.currentIndex);
- } else {
- dayAdapter.currentIndex = day - 1; // day = 30
- }
- if (onSelectedChangedListener != null) {
- onSelectedChangedListener.OnSelectedChanged(parseInt2Array(year, 1 + oldValue, day), getSelectDate());
- }
- }
- });
- wheelViewDay.addChangingListener(new OnWheelChangedListener() {@Override public void onChanged(WheelView wheel, int oldValue, int newValue) {
- day = 1 + newValue;
- if (onSelectedChangedListener != null) {
- onSelectedChangedListener.OnSelectedChanged(parseInt2Array(year, month, oldValue + 1), getSelectDate());
- }
- }
- });
- wheelViewYear.addScrollingListener(onWheelScrollListener);
- wheelViewMonth.addScrollingListener(onWheelScrollListener);
- wheelViewDay.addScrollingListener(onWheelScrollListener);
- }
- OnWheelScrollListener onWheelScrollListener = new OnWheelScrollListener() {@Override public void onScrollingStarted(WheelView wheel) {
- }
- @Override public void onScrollingFinished(WheelView wheel) {
- setTextViewStyle();
- }
- };
- private void setTextViewStyle() {
- setTextViewSize(year + "", yearAdapter);
- setTextViewSize(month + "", monthAdapter);
- setTextViewSize(day + "", dayAdapter);
- }
- private void setTextViewSize(String currentItemText, AbstractWheelTextAdapter1 adapter) {
- ArrayList < View > arrayList = adapter.getTextViews();
- int size = arrayList.size();
- String currentText;
- TextView textView;
- boolean current;
- for (int i = 0; i < size; i++) {
- textView = (TextView) arrayList.get(i);
- currentText = textView.getText().toString();
- current = currentItemText.equals(currentText);
- textView.setTextColor(current ? adapter.selected_text_color: adapter.un_selected_text_color);
- textView.setTextSize(current ? adapter.selected_text_size: adapter.un_selected_text_size);
- }
- }
- /**
- * 设置控件的初始值
- *
- * @param year
- * @param month
- * @param day
- */
- public void setDate(int year, int month, int day) {
- //验证合法性
- if (year > YEAR_MAX || year < YEAR_MIN) {
- year = YEAR_MIN;
- // throw new RuntimeException("年份必须在[" + YEAR_MIN + "," + YEAR_MAX + "]之间");
- }
- if (month > 12 || month < 1) {
- month = 1;
- // throw new RuntimeException("月份份必须在[" + 1 + "," + 12 + "]之间");
- }
- final int days = calcDay(year, month);
- if (day > days || day < 1) {
- day = 1;
- // throw new RuntimeException("日期份必须在[" + 1 + "," + days + "]之间");
- }
- this.year = year;
- this.month = month;
- this.day = day;
- yearAdapter.currentIndex = DatePickerView.this.year - YEAR_MIN;
- monthAdapter.currentIndex = DatePickerView.this.month - 1;
- dayAdapter.currentIndex = DatePickerView.this.day - 1;
- wheelViewYear.setCurrentItem(yearAdapter.currentIndex);
- wheelViewMonth.setCurrentItem(monthAdapter.currentIndex);
- wheelViewDay.setCurrentItem(dayAdapter.currentIndex);
- }
- public void addOnSelectedChangingListener(OnSelectedChangedListener onSelectedChangedListener) {
- this.onSelectedChangedListener = onSelectedChangedListener;
- }
- private OnSelectedChangedListener onSelectedChangedListener;
- public interface OnSelectedChangedListener {
- void OnSelectedChanged(int[] oldValue, int[] newValue);
- }
- private int[] parseInt2Array(int year, int month, int day) {
- return new int[] {
- year,
- month,
- day
- };
- }
- private int[] getSelectDate() {
- return new int[] {
- year,
- month,
- day
- };
- }
- private ArrayList < Integer > getDayList(int days) {
- if (days <= 0) {
- return null;
- }
- ArrayList < Integer > list = new ArrayList(days);
- for (int i = 1; i < days + 1; i++) {
- list.add(i);
- }
- return list;
- }
- private int calcDay(int year, int month) {
- int days = 0;
- switch (month) {
- case 1:
- case 3:
- case 5:
- case 7:
- case 8:
- case 10:
- case 12:
- days = 31;
- break;
- case 4:
- case 6:
- case 9:
- case 11:
- days = 30;
- break;
- case 2:
- days = (year % 400 == 0 || (year % 100 != 0 && year % 4 == 0)) ? 29 : 28;
- break;
- }
- return days;
- }
- private class DateTextAdapter extends AbstractWheelTextAdapter1 {
- ArrayList < Integer > list;
- public DateTextAdapter(Context context) {
- super(context, android.R.layout.simple_list_item_1);
- // super(context, R.layout.item_birth_year);
- // setItemTextResource(R.id.tempValue);
- // item_birth_year.xml 内容如下
- // <?xml version="1.0" encoding="utf-8"?>
- // <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
- // android:layout_width="match_parent"
- // android:layout_height="35dip"
- // android:gravity="center"
- // android:orientation="horizontal">
- // <TextView
- // android:id="@+id/tempValue"
- // android:layout_width="match_parent"
- // android:layout_height="match_parent"
- // android:gravity="center"
- // android:textColor="#ffff0000"/>
- // </LinearLayout>
- }
- public void setList(ArrayList < Integer > list) {
- this.list = list;
- notifyDataChangedEvent();
- }
- @Override protected CharSequence getItemText(int index) {
- return list == null ? "": String.valueOf(list.get(index));
- }
- @Override public int getItemsCount() {
- return list == null ? 0 : list.size();
- }
- }
- }
来源: http://www.phperz.com/article/17/0824/337507.html