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android gridview控件使用详解_Android精美日历控件CalendarView自定义使用完全解析

news 来源：原创 2024/5/7 7:24:42

秦子帅明确目标，每天进步一点点.....

作者 | 黄海彬

地址 | https://juejin.im/post/5a6743836fb9a01caa20aefc

详解

此框架采用组合的方式，各个模块互相独立，可自由采用各种提供的控件组合，完全自定义自己需要的UI，周视图和月视图可通过简单自定义任意自由绘制，不怕美工提需求！！！下面教程将介绍如何实现3个API，自定义Canvas绘制日历

CalendarView的优势：

1、热插拔设计，根据不同的UI需求完全自定义UI，简单几步即可实现，自定义事件日历标记、颜色、农历等

2、完全Canvas绘制，性能和速度都很不错，相比大多数基于GridView或RecyclerView实现的占用内存更低，启动速度更快

3、支持收缩、展开、快速年月份选择等

4、简洁易懂的源码，易学习。

Gradle

compile 'com.haibin:calendarview:3.2.9'

<dependency><groupId>com.haibingroupId><artifactId>calendarviewartifactId><version>3.2.9version><type>pomtype>dependency>

混淆proguard-rules

-keepclasseswithmembers class * {public (android.content.Context); }

国际惯例，先上一个自定义效果图，结尾还有几个其它效果图，可自己自定义

各个类功能介绍

CalendarLayout

这是个辅助类，负责CalendarView的收缩控制功能，如果不需要收缩功能，无需使用它，一般使用教程如下

<com.haibin.calendarview.CalendarLayout android:id="@+id/calendarLayout" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:background="#fff" app:only_week_view="false" app:default_status="shrink" app:calendar_content_view_id="@+id/recyclerView"> <com.haibin.calendarview.CalendarView android:id="@+id/calendarView" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="#fff" app:current_month_text_color="#333333" app:current_month_lunar_text_color="#CFCFCF" app:min_year="2004" app:max_year="2020" app:other_month_text_color="#e1e1e1" app:other_month_lunar_text_color="#e1e1e1" app:scheme_text="假" app:week_start_with="mon" app:scheme_text_color="#333" app:scheme_theme_color="#128c4b" app:selected_lunar_text_color="#CFCFCF" app:month_view="com.haibin.calendarviewproject.meizu.MeiZuMonthView" app:week_view="com.haibin.calendarviewproject.meizu.MeizuWeekView" app:selected_text_color="#333" app:selected_theme_color="#108cd4" app:week_background="#fff" app:week_text_color="#111" app:year_view_day_text_color="#333333" app:year_view_day_text_size="9sp" app:year_view_month_text_color="#ff0000" app:year_view_month_text_size="20sp" app:month_view_show_mode="mode_only_current" app:year_view_scheme_color="#f17706"/> <com.haibin.calendarviewproject.group.GroupRecyclerView android:id="@+id/recyclerView" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/content_background" />com.haibin.calendarview.CalendarLayout>

CalendarLayout api

public void expand(); //展开public void shrink(); //收缩public boolean isExpand();//是否已经展开

<attr name="calendar_show_mode"><enum name="both_month_week_view" value="0" /><enum name="only_week_view" value="1" /><enum name="only_month_view" value="2" />attr><attr name="default_status"><enum name="expand" value="0" /> <enum name="shrink" value="1" />attr><attr name="calendar_content_view_id" format="integer" />

CalendarView

真正的日历类，可以自行通过attr配置

<com.haibin.calendarview.CalendarView android:id="@+id/calendarView" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="#fff" app:current_month_text_color="#333333" app:current_month_lunar_text_color="#CFCFCF" app:min_year="2004" app:max_year="2020" app:other_month_text_color="#e1e1e1" app:other_month_lunar_text_color="#e1e1e1" app:scheme_text="假" app:scheme_text_color="#333" app:scheme_theme_color="#128c4b" app:selected_lunar_text_color="#CFCFCF" app:month_view="com.haibin.calendarviewproject.meizu.MeiZuMonthView" app:week_view="com.haibin.calendarviewproject.meizu.MeizuWeekView" app:selected_text_color="#333" app:selected_theme_color="#108cd4" app:week_background="#fff" app:week_text_color="#111" app:year_view_day_text_color="#333333" app:year_view_day_text_size="9sp" app:year_view_month_text_color="#ff0000" app:year_view_month_text_size="20sp" app:year_view_scheme_color="#f17706"/>

完整attr

<declare-styleable name="CalendarView"><attr name="week_background" format="color" /><attr name="week_line_background" format="color" /><attr name="week_text_color" format="color" /><attr name="week_bar_view" format="string" /><attr name="month_view" format="string" /><attr name="week_view" format="string" /><attr name="scheme_text" format="string" /><attr name="day_text_size" format="dimension" /><attr name="lunar_text_size" format="dimension" /><attr name="calendar_height" format="dimension" /><attr name="scheme_text_color" format="color" /><attr name="scheme_month_text_color" format="color" /><attr name="scheme_lunar_text_color" format="color" /><attr name="scheme_theme_color" format="color" /><attr name="selected_theme_color" format="color" /><attr name="selected_text_color" format="color" /><attr name="selected_lunar_text_color" format="color" /><attr name="current_day_text_color" format="color" /><attr name="current_day_lunar_text_color" format="color" /><attr name="current_month_text_color" format="color" /><attr name="other_month_text_color" format="color" /><attr name="current_month_lunar_text_color" format="color" /><attr name="other_month_lunar_text_color" format="color" /><attr name="year_view_month_text_size" format="dimension" /><attr name="year_view_day_text_size" format="dimension" /><attr name="year_view_month_text_color" format="color" /><attr name="year_view_day_text_color" format="color" /><attr name="year_view_scheme_color" format="color" /><attr name="year_view_background" format="color" /><attr name="min_year" format="integer" /><attr name="max_year" format="integer" /><attr name="min_year_month" format="integer" /><attr name="max_year_month" format="integer" /><attr name="month_view_show_mode"><enum name="mode_all" value="0" /> <enum name="mode_only_current" value="1" /> <enum name="mode_fix" value="2" /> attr><attr name="week_start_with"><enum name="sun" value="1" /><enum name="mon" value="2" /><enum name="sat" value="7" />attr>declare-styleable>

CalendarView api

public int getCurDay(); //今天public int getCurMonth(); //当前的月份public int getCurYear(); //今年public void showSelectLayout(final int year); //快速弹出年份选择月份public void closeSelectLayout(final int position); //关闭选择年份并跳转日期/** * 设置日期范围 * * @param minYear 最小年份 * @param minYearMonth 最小年份对应月份 * @param maxYear 最大月份 * @param maxYearMonth 最大月份对应月份 */public void setRange(int minYear, int minYearMonth,int maxYear, int maxYearMonth) public void setOnYearChangeListener(OnYearChangeListener listener);//年份切换事件public void setOnDateSelectedListener(OnDateSelectedListener listener);//日期选择事件public void setSchemeDate(List mSchemeDate);//标记日期public void update();//动态更新public Calendar getSelectedCalendar(); //获取选择的日期public void scrollToPre();//滚动到上一个月public void scrollToNext();//滚动到下一个月public void scrollToCalendar(int year, int month, int day);//滚动到指定日期/** * 设置背景色 * * @param monthLayoutBackground 月份卡片的背景色 * @param weekBackground 星期栏背景色 * @param lineBg 线的颜色 */public void setBackground(int monthLayoutBackground, int weekBackground, int lineBg)/** * 设置文本颜色 * * @param curMonthTextColor 当前月份字体颜色 * @param otherMonthColor 其它月份字体颜色 * @param lunarTextColor 农历字体颜色 */public void setTextColor(int curMonthTextColor,int otherMonthColor,int lunarTextColor)/** * 设置选择的效果 * * @param style 选中的style CalendarCardView.STYLE_FILL or CalendarCardView.STYLE_STROKE * @param selectedThemeColor 选中的标记颜色 * @param selectedTextColor 选中的字体颜色 */public void setSelectedColor(int style, int selectedThemeColor, int selectedTextColor)/** * 设置标记的色 * * @param style 标记的style CalendarCardView.STYLE_FILL or CalendarCardView.STYLE_STROKE * @param schemeColor 标记背景色 * @param schemeTextColor 标记字体颜色 */public void setSchemeColor(int style, int schemeColor, int schemeTextColor)/** * 设置背景色 * * @param yearViewBackground 年份卡片的背景色 * @param weekBackground 星期栏背景色 * @param lineBg 线的颜色 */public void setBackground(int yearViewBackground, int weekBackground, int lineBg)

这个控件的特别之处就是它的UI是可以交给客户端自由绘制的，因此可以自由发挥想象力，绘制你需要的日历效果UI

接下来介绍如何完全自定义日历，自定义日历需要同时自定义月视图和周视图，代码几乎一样，需要实现三个回调函数即可，如下：

onDrawSelectedonDrawSchemeonDrawText

/** * 首先继承月视图，假如我们想实现高仿魅族的日历 */public class MeiZuMonthView extends MonthView { /** * 自定义魅族标记的文本画笔 */ private Paint mTextPaint = new Paint(); /** * 自定义魅族标记的圆形背景 */ private Paint mSchemeBasicPaint = new Paint(); private float mRadio; private int mPadding; private float mSchemeBaseLine; public MeiZuMonthView(Context context) { super(context); mTextPaint.setTextSize(dipToPx(context, 8)); mTextPaint.setColor(0xffffffff); mTextPaint.setAntiAlias(true); mTextPaint.setFakeBoldText(true); mSchemeBasicPaint.setAntiAlias(true); mSchemeBasicPaint.setStyle(Paint.Style.FILL); mSchemeBasicPaint.setTextAlign(Paint.Align.CENTER); mSchemeBasicPaint.setFakeBoldText(true); mRadio = dipToPx(getContext(), 7); mPadding = dipToPx(getContext(), 4); Paint.FontMetrics metrics = mSchemeBasicPaint.getFontMetrics(); mSchemeBaseLine = mRadio - metrics.descent + (metrics.bottom - metrics.top) / 2 + dipToPx(getContext(), 1); } /** * 绘制选中的日子 * @param canvas canvas * @param calendar 日历日历calendar * @param x 日历Card x起点坐标 * @param y 日历Card y起点坐标 * @param hasScheme hasScheme 非标记的日期 * @return 返回true 则会继续绘制onDrawScheme，因为这里背景色不是是互斥的，所以返回true，返回false，则点击scheme标记的日子，则不继续绘制onDrawScheme，自行选择即可 */ @Override protected boolean onDrawSelected(Canvas canvas, Calendar calendar, int x, int y, boolean hasScheme) { mSelectedPaint.setStyle(Paint.Style.FILL); mSelectedPaint.setColor(0x80cfcfcf); canvas.drawRect(x + mPadding, y + mPadding, x + mItemWidth - mPadding, y + mItemHeight - mPadding, mSelectedPaint); return true; } /** * 绘制标记的事件日子 * @param canvas canvas * @param calendar 日历calendar * @param x 日历Card x起点坐标 * @param y 日历Card y起点坐标 */ @Override protected void onDrawScheme(Canvas canvas, Calendar calendar, int x, int y) { mSchemeBasicPaint.setColor(calendar.getSchemeColor()); canvas.drawCircle(x + mItemWidth - mPadding - mRadio / 2, y + mPadding + mRadio, mRadio, mSchemeBasicPaint); canvas.drawText(calendar.getScheme(), x + mItemWidth - mPadding - mRadio, y + mPadding + mSchemeBaseLine, mTextPaint); } /** * 绘制文本 * @param canvas canvas * @param calendar 日历calendar * @param x 日历Card x起点坐标 * @param y 日历Card y起点坐标 * @param hasScheme 是否是标记的日期 * @param isSelected 是否选中 */ @Override protected void onDrawText(Canvas canvas, Calendar calendar, int x, int y, boolean hasScheme, boolean isSelected) { int cx = x + mItemWidth / 2; int top = y - mItemHeight / 6; if (isSelected) {//优先绘制选择的 canvas.drawText(String.valueOf(calendar.getDay()), cx, mTextBaseLine + top, mSelectTextPaint); canvas.drawText(calendar.getLunar(), cx, mTextBaseLine + y + mItemHeight / 10, mSelectedLunarTextPaint); } else if (hasScheme) {//否则绘制具有标记的 canvas.drawText(String.valueOf(calendar.getDay()), cx, mTextBaseLine + top, calendar.isCurrentMonth() ? mSchemeTextPaint : mOtherMonthTextPaint); canvas.drawText(calendar.getLunar(), cx, mTextBaseLine + y + mItemHeight / 10, mCurMonthLunarTextPaint); } else {//最好绘制普通文本 canvas.drawText(String.valueOf(calendar.getDay()), cx, mTextBaseLine + top, calendar.isCurrentDay() ? mCurDayTextPaint : calendar.isCurrentMonth() ? mCurMonthTextPaint : mOtherMonthTextPaint); canvas.drawText(calendar.getLunar(), cx, mTextBaseLine + y + mItemHeight / 10, calendar.isCurrentDay() ? mCurDayLunarTextPaint : calendar.isCurrentMonth() ? mCurMonthLunarTextPaint : mOtherMonthLunarTextPaint); } } /** * dp转px * * @param context context * @param dpValue dp * @return px */ private static int dipToPx(Context context, float dpValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dpValue * scale + 0.5f); }}

实现自定义周视图，周视图除了三个回调函数少了一个y参数，其它一样，因为周视图只有一行，所以可直接copy MonthView的代码，令y=0即可，如下

public class MeizuWeekView extends WeekView { private Paint mTextPaint = new Paint(); private Paint mSchemeBasicPaint = new Paint(); private float mRadio; private int mPadding; private float mSchemeBaseLine; public MeizuWeekView(Context context) { super(context); mTextPaint.setTextSize(dipToPx(context, 8)); mTextPaint.setColor(0xffffffff); mTextPaint.setAntiAlias(true); mTextPaint.setFakeBoldText(true); mSchemeBasicPaint.setAntiAlias(true); mSchemeBasicPaint.setStyle(Paint.Style.FILL); mSchemeBasicPaint.setTextAlign(Paint.Align.CENTER); mSchemeBasicPaint.setColor(0xffed5353); mSchemeBasicPaint.setFakeBoldText(true); mRadio = dipToPx(getContext(), 7); mPadding = dipToPx(getContext(), 4); Paint.FontMetrics metrics = mSchemeBasicPaint.getFontMetrics(); mSchemeBaseLine = mRadio - metrics.descent + (metrics.bottom - metrics.top) / 2 + dipToPx(getContext(), 1); } /** * * @param canvas canvas * @param calendar 日历日历calendar * @param x 日历Card x起点坐标 * @param hasScheme hasScheme 非标记的日期 * @return true 则绘制onDrawScheme，因为这里背景色不是是互斥的 */ @Override protected boolean onDrawSelected(Canvas canvas, Calendar calendar, int x, boolean hasScheme) { mSelectedPaint.setStyle(Paint.Style.FILL); mSelectedPaint.setColor(0x80cfcfcf); canvas.drawRect(x + mPadding, mPadding, x + mItemWidth - mPadding, mItemHeight - mPadding, mSelectedPaint); return true; } @Override protected void onDrawScheme(Canvas canvas, Calendar calendar, int x) { mSchemeBasicPaint.setColor(calendar.getSchemeColor()); canvas.drawCircle(x + mItemWidth - mPadding - mRadio / 2, mPadding + mRadio, mRadio, mSchemeBasicPaint); canvas.drawText(calendar.getScheme(), x + mItemWidth - mPadding - mRadio, mPadding + mSchemeBaseLine, mTextPaint); } @Override protected void onDrawText(Canvas canvas, Calendar calendar, int x, boolean hasScheme, boolean isSelected) { int cx = x + mItemWidth / 2; int top = -mItemHeight / 6; if (isSelected) { canvas.drawText(String.valueOf(calendar.getDay()), cx, mTextBaseLine + top, mSelectTextPaint); canvas.drawText(calendar.getLunar(), cx, mTextBaseLine + mItemHeight / 10, mSelectedLunarTextPaint); } else if (hasScheme) { canvas.drawText(String.valueOf(calendar.getDay()), cx, mTextBaseLine + top, calendar.isCurrentMonth() ? mSchemeTextPaint : mOtherMonthTextPaint); canvas.drawText(calendar.getLunar(), cx, mTextBaseLine + mItemHeight / 10, mCurMonthLunarTextPaint); } else { canvas.drawText(String.valueOf(calendar.getDay()), cx, mTextBaseLine + top, calendar.isCurrentDay() ? mCurDayTextPaint : calendar.isCurrentMonth() ? mCurMonthTextPaint : mOtherMonthTextPaint); canvas.drawText(calendar.getLunar(), cx, mTextBaseLine + mItemHeight / 10, calendar.isCurrentDay() ? mCurDayLunarTextPaint : calendar.isCurrentMonth() ? mCurMonthLunarTextPaint : mOtherMonthLunarTextPaint); } } /** * dp转px * * @param context context * @param dpValue dp * @return px */ private static int dipToPx(Context context, float dpValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dpValue * scale + 0.5f); }}