在开发中可能会遇到某些情况下需要用到日历的功能,并且还要在日历上加标签什么的,最重要的就是Android自带的日历由于各个系统版本不同导致日历的样式也不同,这样就会导致使用起来比较麻烦..而且在日历中加标签也不好实现...所以很多时候日历都
在开发中可能会遇到某些情况下需要用到日历的功能,并且还要在日历上加标签什么的,最重要的就是Android自带的日历由于各个系统版本不同导致日历的样式也不同,这样就会导致使用起来比较麻烦..而且在日历中加标签也不好实现...所以很多时候日历都是自己去实现的...由于自定义日历会比较麻烦...这里就教大家使用GridView来实现,主要是我们比较熟悉这个控件...到时候也可以根据自己的情况进行封装为自定义View
下面就先看看效果图.由于是从项目中抽取出来的,某些地方定制性比较强, 可以根据需求自行修改
效果图
图中的红点就是标签,蓝色背景就是选中的意思.
下面开始撸代码:
先上核心的GridView的适配器:
CalendarAdapter.java
public class CalendarAdapter extends BaseAdapter { private static String TAG = "CalendarAdapter"; private boolean isLeapyear = false; //是否为闰年 private int daysOfMonth = 0; //某月的天数 private int dayOfWeek = 0; //具体某一天是星期几 private int lastDaysOfMonth = 0; //上一个月的总天数 private Context context; private String[] dayNumber = new String[42]; //一个gridview中的日期存入此数组中 private SpecialCalendar sc = null; private int currentYear = 0; private int currentMonth = 0; private int currentFlag = -1; private String currentDayStr; private SimpleDateFORMat sdf = new SimpleDateFormat("yyyy-M-d"); private Set<Integer> schDateTagFlag = new ArraySet<>(); //存储当月所有的日程日期(标签) private String showYear = ""; //用于在头部显示的年份 private String showMonth = ""; //用于在头部显示的月份 private String animalsYear = ""; private String leapMonth = ""; //闰哪一个月 private Set<String> mSet = null; private int jumpMonth = 0; public CalendarAdapter(Context context, int year, int month, String currentDayStr) { this.context = context; sc = new SpecialCalendar(); currentYear = year; currentMonth = month; //得到跳转到的月份 this.currentDayStr = currentDayStr; getCalendar(currentYear, currentMonth); } @Override public int getCount() { return dayNumber.length; } @Override public Object getItem(int position) { return position; } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder myViewHolder = null; if (convertView == null || convertView.getTag() == null) { convertView = LayoutInflater.from(context).inflate(R.layout.item_select_time, null); myViewHolder = new ViewHolder(convertView); convertView.setTag(myViewHolder); } else { myViewHolder = (ViewHolder) convertView.getTag(); } myViewHolder.mIdTvItemSelectTimeDay.setText(dayNumber[position]); myViewHolder.mIdTvItemSelectTimeDay.setTextColor(Color.GRAY);//不是当前月为灰 if (position < daysOfMonth + dayOfWeek && position >= dayOfWeek) { // 当前月信息显示 myViewHolder.mIdTvItemSelectTimeDay.setTextColor(Color.BLACK);// 当月字体设黑 myViewHolder.mIdTvItemSelectTimeDay.setTag(true);// 当月字体设黑 }else { myViewHolder.mIdTvItemSelectTimeDay.setTag(false);// 当月字体设黑 } if (currentFlag != -1 && currentFlag == position) { //设置当天的背景 myViewHolder.mIdTvItemSelectTimeDay.setBackgroundResource(R.color.mainMenu); myViewHolder.mIdTvItemSelectTimeDay.setTextColor(Color.WHITE); } else { myViewHolder.mIdTvItemSelectTimeDay.setBackgroundColor(0); } //显示小圆点 if (schDateTagFlag != null && schDateTagFlag.size() > 0) { if (schDateTagFlag.contains(position)) { if (myViewHolder.mIdImgitemSelectTimeLoGo.getVisibility()!=View.VISIBLE) { myViewHolder.mIdImgItemSelectTimeLogo.setVisibility(View.VISIBLE); } } else { if (myViewHolder.mIdImgItemSelectTimeLogo.getVisibility()!=View.GONE) { myViewHolder.mIdImgItemSelectTimeLogo.setVisibility(View.GONE); } } } else { if (myViewHolder.mIdImgItemSelectTimeLogo.getVisibility()!=View.GONE) { myViewHolder.mIdImgItemSelectTimeLogo.setVisibility(View.GONE); } } return convertView; } public void addMonth() { jumpMonth++; } public void leSSMonth() { jumpMonth--; } public void upDataMonth() { int stepYear; int stepMonth = currentMonth + jumpMonth; if (stepMonth > 0) { //下一个月 if (stepMonth % 12 == 0) { stepYear = currentYear + stepMonth / 12 - 1; stepMonth = 12; } else { stepYear = currentYear + stepMonth / 12; stepMonth = stepMonth % 12; } } else { //上一个月 stepYear = currentYear - 1 + stepMonth / 12; stepMonth = stepMonth % 12 + 12; } getCalendar(stepYear, stepMonth); } private void getCalendar(int year, int month) { isLeapyear = sc.isLeapYear(year); //是否为闰年 daysOfMonth = sc.getDaysOfMonth(isLeapyear, month); //某月的总天数 dayOfWeek = sc.getWeekdayOfMonth(year, month); //某月第一天为星期几 lastDaysOfMonth = sc.getDaysOfMonth(isLeapyear, month - 1); //上一个月的总天数 getWeek(year, month); } private void getWeek(int year, int month) { schDateTagFlag.clear(); currentFlag = -1; int j = 1; //得到当前月的所有日程日期(这些日期需要标记) for (int i = 0; i < dayNumber.length; i++) { if (i < dayOfWeek) { //前一个月 int temp = lastDaysOfMonth - dayOfWeek + 1; dayNumber[i] = (temp + i) + ""; } else if (i < daysOfMonth + dayOfWeek) {//本月 int day = i - dayOfWeek + 1; //得到的日期 dayNumber[i] = i - dayOfWeek + 1 + ""; //对于当前月才去标记当前日期 String yearStr = String.valueOf(year); String monthStr =getStr(String.valueOf(month),2); String dayStr =getStr(String.valueOf(day),2); String timeAll = yearStr + monthStr + dayStr; if (timeAll.equals(currentDayStr)) {//判断选中的位置 currentFlag = i; } if (mSet != null && mSet.size() > 0) { for (String s : mSet) {//迭代器遍历判断是否需要带标签 if (timeAll.equals(s)) { schDateTagFlag.add(i); } } } setShowYear(yearStr); setShowMonth(String.valueOf(month)); } else { //下一个月 dayNumber[i] = j + ""; j++; } } } public String getItemTime(int position) { String month = getStr(getShowMonth(), 2); String day = getStr(getDateByClickItem(position), 2); return getShowYear() + month + day; } public static String getStr(String file,int bit) { while (file.length() < bit) file = "0" + file; return file; } public String getDateByClickItem(int position) { return dayNumber[position]; } public int getStartPositon() { return dayOfWeek + 7; } public int getEndPosition() { return (dayOfWeek + daysOfMonth + 7) - 1; } public String getShowYear() { return showYear; } public void setShowYear(String showYear) { this.showYear = showYear; } public String getShowMonth() { return showMonth; } public void setShowMonth(String showMonth) { this.showMonth = showMonth; } public String getAnimalsYear() { return animalsYear; } public void setAnimalsYear(String animalsYear) { this.animalsYear = animalsYear; } public String getLeapMonth() { return leapMonth; } public void setLeapMonth(String leapMonth) { this.leapMonth = leapMonth; } public Set<String> getSet() { return mSet; } public void setSet(Set<String> set) { mSet = set; } static class ViewHolder { @BindView(R.id.id_img_item_select_time_logo) ImageView mIdImgItemSelectTimeLogo; @BindView(R.id.id_tv_item_select_time_day) TextView mIdTvItemSelectTimeDay; ViewHolder(View view) { ButterKnife.bind(this, view); } }}
--结束END--
本文标题: Android使用GridView实现日历的方法
本文链接: https://www.lsjlt.com/news/221299.html(转载时请注明来源链接)
有问题或投稿请发送至: 邮箱/279061341@qq.com QQ/279061341
下载Word文档到电脑,方便收藏和打印~
2024-05-14
2024-05-14
2024-05-14
2024-05-14
2024-05-14
2024-05-14
2024-05-14
2024-05-14
2024-05-14
2024-05-14
回答
回答
回答
回答
回答
回答
回答
回答
回答
回答
0