本文实例为大家分享了Android日历控件的实现代码,供大家参考,具体内容如下
1、效果图:
2、弹窗Dialog:SelectDateDialog:
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public class SelectDateDialog { private static final String TAG = "SelectDateDialog" ; private Dialog dialog; private TextView dateText; private int selectYear, selectMonth; private AppCompatActivity mContext; private DateAdapter adapter; private List<String> selWeekList = new ArrayList<>(); private List<DateBean> list = new ArrayList<>(); public SelectDateDialog builder(AppCompatActivity mContext, int year, int month) { this .mContext = mContext; this .selectYear = year; this .selectMonth = month; // 获取Dialog布局 View view = LayoutInflater.from(mContext).inflate(R.layout.dialog_date, null ); // 定义Dialog布局和参数 dialog = new Dialog(mContext, R.style.AlertDialogStyle); dialog.setCanceledOnTouchOutside( false ); //点击外部是否取消 dialog.setCancelable( false ); dialog.setContentView(view); Window window = dialog.getWindow(); WindowManager.LayoutParams params = window.getAttributes(); params.width = (ScreenUtils.getScreenWidth(mContext)); // params.height = (int) (ScreenUtils.getScreenHeight(mContext) * 0.5); window.setAttributes(params); window.setGravity(Gravity.BOTTOM); RecyclerView recycler = view.findViewById(R.id.recycler_select_date); dateText = view.findViewById(R.id.date_text); dateText.setText(year + "年" + month + "月" ); //下个月 view.findViewById(R.id.next_month).setOnClickListener(view13 -> { if (selectMonth > 11 ) { selectYear = selectYear + 1 ; selectMonth = 1 ; } else { selectMonth++; } showNewData(selectYear, selectMonth); }); //上个月 view.findViewById(R.id.last_month).setOnClickListener(view14 -> { if (selectMonth < 2 ) { selectYear = selectYear - 1 ; selectMonth = 12 ; } else { selectMonth--; } showNewData(selectYear, selectMonth); }); list = DataUtils.getCalendar(year, month); adapter = new DateAdapter(mContext, list); GridLayoutManager manager = new GridLayoutManager(mContext, 7 ); recycler.setLayoutManager(manager); recycler.setAdapter(adapter); //取消 view.findViewById(R.id.middle_cancel).setOnClickListener(view1 -> { dialog.dismiss(); }); //确定 view.findViewById(R.id.middle_determine).setOnClickListener(view1 -> { initSelect(); }); //设置选中当天 adapter.setNowDay(year, month, DataUtils.getLastMonth(year, month)); return this ; } private void showNewData( int year, int month) { list = DataUtils.getCalendar(year, month); //更新月数据 adapter.setList(list); adapter.setNowDay(year , month, DataUtils.getLastMonth(year, month)); dateText.setText(year + "年" + month + "月" ); } /** * 获取选中的日期 */ private void initSelect() { selWeekList.clear(); for ( int i = 0 ; i < list.size(); i++) { if (list.get(i).isFlag()) { //记录数量 selWeekList.add(selectYear + "-" + selectMonth + "-" + list.get(i).getWeek()); } } Log.e(TAG, "initSelect: " + list.size()); Log.e(TAG, "initSelect: " + selWeekList.size()); if (selWeekList.size() == 0 ) { Toast.makeText(mContext, "未选则日期" , Toast.LENGTH_SHORT).show(); return ; } dialog.dismiss(); listener.date(DataUtils.returnList(selWeekList)); Log.e(TAG, "initSelect: " + DataUtils.returnList(selWeekList)); } public void show() { if (dialog != null && (!dialog.isShowing())) { dialog.show(); } } private OnDateListener listener; public SelectDateDialog setListener(OnDateListener listener) { this .listener = listener; return this ; } public interface OnDateListener { void date(String selectDate); } } |
ScreenUtils:
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public class ScreenUtils { public static int getScreenWidth(Context context) { DisplayMetrics localDisplayMetrics = new DisplayMetrics(); ((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(localDisplayMetrics); return localDisplayMetrics.widthPixels; } } |
DateBean:
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public class DateBean { private int week; private boolean sign; //0 上月 1本月 2下月 private int month; private boolean isFlag; public boolean isFlag() { return isFlag; } public void setFlag( boolean flag) { isFlag = flag; } public int getWeek() { return week; } public void setWeek( int week) { this .week = week; } public boolean isSign() { return sign; } public void setSign( boolean sign) { this .sign = sign; } public int getMonth() { return month; } public void setMonth( int month) { this .month = month; } public DateBean( int week, boolean sign, int month) { this .week = week; this .sign = sign; this .month = month; } } |
适配器:DateAdapter
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public class DateAdapter extends CommonRecyclerAdapter<DateBean> { private static final String TAG = "DateAdapter" ; private Integer nowDay; private int year; private int month; public DateAdapter(Context context, List<DateBean> list) { super (context, R.layout.item_date, list); } public void setNowDay( int year, int month, int nowDay) { this .nowDay = nowDay; this .year = year; this .month = month; notifyDataSetChanged(); } @Override public void convert(RecyclerHolder holder, DateBean item, int position) { TextView number = holder.getView(R.id.item_number); number.setText(item.getWeek() + "" ); //当前年月等于切换年月时才选中当天 if (position == nowDay) { String date = year + "-" + month; if (date.equals(DataUtils.timeInMillsTrasToDate( 1 ))) { number.setBackgroundResource(R.drawable.date_unsel_shape); number.setTextColor(Color.WHITE); } else { number.setTextColor(Color.parseColor( "#333333" )); } } else { number.setBackgroundResource( 0 ); number.setTextColor(Color.parseColor( "#333333" )); if (item.getMonth() == 0 || item.getMonth() == 2 ) { number.setTextColor(Color.parseColor( "#CDCDCD" )); } else { number.setTextColor(Color.parseColor( "#333333" )); } } //点击事件 number.setOnClickListener(view -> { //本月可以点击 int nowYear = Integer.parseInt(DataUtils.timeInMillsTrasToDate( 2 )); int nowMonth = Integer.parseInt(DataUtils.timeInMillsTrasToDate( 3 )); //只有在今天之后的日期才可以选中 if (year == nowYear) { if (item.getMonth() == 1 && month == nowMonth && position > nowDay) { onClick(item, number); } else if (month > nowMonth) { onClick(item, number); } } else if (year > nowYear) { onClick(item, number); } }); } private void onClick(DateBean item, TextView number) { if (item.isFlag()) { item.setFlag( false ); number.setBackgroundResource( 0 ); number.setTextColor(Color.parseColor( "#333333" )); } else { item.setFlag( true ); number.setBackgroundResource(R.drawable.date_sel_shape); number.setTextColor(Color.WHITE); } } } |
注意:CommonRecyclerAdapter之前写过,这里不再重复
数据源:DataUtils
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public class DataUtils { private static final String TAG = "DataUtils" ; /** * 日历 */ public static List<DateBean> getCalendar( int currentYear, int currentMonth) { //实例化集合 List<DateBean> list = new ArrayList<>(); Calendar c = Calendar.getInstance(); c.clear(); /** * 处理上个月月末 */ if (currentMonth - 1 == 0 ) { c.set(Calendar.YEAR, currentYear - 1 ); c.set(Calendar.MONTH, 11 ); } else { c.set(Calendar.YEAR, currentYear); c.set(Calendar.MONTH, (currentMonth - 2 )); } int last_sumDays = c.getActualMaximum(Calendar.DAY_OF_MONTH); c.set(Calendar.DATE, last_sumDays); //得到一号星期几 int weekDay = c.get(Calendar.DAY_OF_WEEK); if (weekDay < 7 ) { for ( int i = weekDay - 1 ; i >= 0 ; i--) { Integer date = new Integer(last_sumDays - i); list.add( new DateBean(date, true , 0 )); } } /** * 处理当前月 */ c.clear(); c.set(Calendar.YEAR, currentYear); c.set(Calendar.MONTH, currentMonth - 1 ); int currentsumDays = c.getActualMaximum(Calendar.DAY_OF_MONTH); for ( int i = 1 ; i <= currentsumDays; i++) { Integer date = new Integer(i); list.add( new DateBean(date, true , 1 )); } /** * 处理下个月月初 */ c.clear(); if (currentMonth == 12 ) { c.set(Calendar.YEAR, currentYear + 1 ); c.set(Calendar.MONTH, 0 ); } else { c.set(Calendar.YEAR, currentYear); c.set(Calendar.MONTH, currentMonth); } c.set(Calendar.DATE, 1 ); int currentWeekDay = c.get(Calendar.DAY_OF_WEEK); if (currentWeekDay > 2 && currentWeekDay < 8 ) { for ( int i = 1 ; i <= 8 - currentWeekDay; i++) { list.add( new DateBean(i, true , 2 )); } } return list; } /** * 获取上个月大小 */ public static Integer getLastMonth( int currentYear, int currentMonth) { //实例化集合 List<Integer> list = new ArrayList<>(); Calendar c = Calendar.getInstance(); c.clear(); /** * 处理上个月月末 */ if (currentMonth - 1 == 0 ) { c.set(Calendar.YEAR, currentYear - 1 ); c.set(Calendar.MONTH, 11 ); } else { c.set(Calendar.YEAR, currentYear); c.set(Calendar.MONTH, (currentMonth - 2 )); } int last_sumDays = c.getActualMaximum(Calendar.DAY_OF_MONTH); c.set(Calendar.DATE, last_sumDays); //得到一号星期几 int weekDay = c.get(Calendar.DAY_OF_WEEK); if (weekDay < 7 ) { for ( int i = weekDay - 1 ; i >= 0 ; i--) { list.add(i); } } Log.e(TAG, "getLastMonth: " + Integer.parseInt(timeInMillsTrasToDate( 0 ))); return list.size() + Integer.parseInt(timeInMillsTrasToDate( 0 )) - 1 ; } /** * list转string字符串 */ public static String returnList(List<String> list) { if ( null == list && list.size() == 0 ) { return "" ; } else { //去除空格 String str = String.valueOf(list).replaceAll( " " , "" ); return str.substring( 1 , str.length() - 1 ); } } /** * 时间转换 */ @TargetApi (Build.VERSION_CODES.N) public static String timeInMillsTrasToDate( int formatType) { DateFormat formatter = null ; switch (formatType) { case 0 : formatter = new SimpleDateFormat( "dd" ); break ; case 1 : formatter = new SimpleDateFormat( "yyyy-MM" ); break ; case 2 : formatter = new SimpleDateFormat( "yyyy" ); break ; case 3 : formatter = new SimpleDateFormat( "MM" ); break ; } Calendar calendar = Calendar.getInstance(); return formatter.format(calendar.getTime()); } } |
使用:DateActivity
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public class DateActivity extends AppCompatActivity { private Button openDate; @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.activity_date); openDate = this .findViewById(R.id.open_date); openDate.setOnClickListener(view -> { showDateDialog(); }); } private void showDateDialog() { int year = Integer.parseInt(DataUtils.timeInMillsTrasToDate( 2 )); int month = Integer.parseInt(DataUtils.timeInMillsTrasToDate( 3 )); new SelectDateDialog().builder( this , year, month) .setListener(selectDate -> openDate.setText(selectDate)).show(); } } |
对应布局:activity_date
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<? 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 = "match_parent" android:orientation = "vertical" > < Button android:id = "@+id/open_date" android:layout_width = "match_parent" android:layout_height = "wrap_content" android:text = "打开日历" /> </ LinearLayout > |
2、资源文件:
date_sel_shape.xml
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<? xml version = "1.0" encoding = "utf-8" ?> < shape xmlns:android = "http://schemas.android.com/apk/res/android" android:shape = "oval" android:useLevel = "false" > < solid android:color = "@color/colorAccent" /> <!--<stroke android:width="1dp" android:color="@color/white"/>--> < size android:width = "30dp" android:height = "30dp" /> </ shape > |
date_unsel_shape.xml
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<? xml version = "1.0" encoding = "utf-8" ?> < shape xmlns:android = "http://schemas.android.com/apk/res/android" android:shape = "oval" android:useLevel = "false" > < solid android:color = "@color/colorPrimary" /> <!--<stroke android:width="1dp" android:color="@color/white"/>--> < size android:width = "30dp" android:height = "30dp" /> </ shape > |
dialog_shape.xml
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<? xml version = "1.0" encoding = "utf-8" ?> < shape xmlns:android = "http://schemas.android.com/apk/res/android" > < corners android:radius = "5dp" /> < solid android:color = "#ffffff" /> </ shape > |
item_date.xml:
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<? 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 = "wrap_content" android:gravity = "center" android:padding = "5dp" > < TextView android:id = "@+id/item_number" android:layout_width = "35dp" android:layout_height = "35dp" android:gravity = "center" android:text = "10" android:textSize = "15sp" /> </ LinearLayout > |
颜色:
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< color name = "colorPrimary" >#008577</ color > < color name = "colorPrimaryDark" >#00574B</ color > < color name = "colorAccent" >#D81B60</ color > |
样式:
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< style name = "AlertDialogStyle" parent = "@android:style/Theme.Dialog" > < item name = "android:windowBackground" >@android:color/transparent</ item > < item name = "android:windowContentOverlay" >@null</ item > < item name = "android:windowIsFloating" >true</ item > < item name = "android:windowFrame" >@null</ item > < item name = "android:backgroundDimEnabled" >true</ item > < item name = "android:windowNoTitle" >true</ item > < item name = "android:windowIsTranslucent" >true</ item > </ style > |
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/qq_34536167/article/details/103001528