安卓实现签到日历

安卓实现签到日历

一  需求分析

        日历支持左右滑动

        日历需要在具体日期下面展示签到情况的标识，例如 异常 正常

        点击日期查看当天的签到情况、在日历下方以列表展示

二    图文展示

三 实现思路

  1 最外层：scrollview包裹 需要自定义 避免滑动冲突

public class ObservableScrollView extends ScrollView {private int downX;private int downY;private int mTouchSlop;private OnScollChangedListener onScollChangedListener = null;public ObservableScrollView(Context context) {super(context);mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();}public ObservableScrollView(Context context, AttributeSet attrs) {super(context, attrs);mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();}public ObservableScrollView(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();}public void setOnScollChangedListener(OnScollChangedListener onScollChangedListener) { = onScollChangedListener;}@Overrideprotected void onScrollChanged(int x, int y, int oldx, int oldy) {(x, y, oldx, oldy);if (onScollChangedListener != null) {(this, x, y, oldx, oldy);}}@Overridepublic boolean onInterceptTouchEvent(MotionEvent e) {int action = e.getAction();switch (action) {case MotionEvent.ACTIO_DOW:downX = (int) e.getRawX();downY = (int) e.getRawY();break;case MotionEvent.ACTIO_MOVE:int moveY = (int) e.getRawY();if (Math.abs(moveY - downY) > mTouchSlop) {return true;}default:}return (e);}public interface OnScollChangedListener {void onScrollChanged(ObservableScrollView scrollView, int x, int y, int oldx, int oldy);}}

  2 日历部分： monthview  dayView组成   dayview与monthview的组成比较简单，可以通过自定义组件 或者 xml都可以实现

                    实现左右滑动：viewpager/flipper  

/*** ViewPager wrapContent解决方案* 用于gradview *6 注意*/
public class CalendarViewPager extends ViewPager {private OnViewpagerListener onViewpagerListener;public void setOnViewpagerListener(OnViewpagerListener onViewpagerListener) { = onViewpagerListener;}public CalendarViewPager(Context context) {super(context);init();}public CalendarViewPager(Context context, AttributeSet attrs) {super(context, attrs);init();}@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {(widthMeasureSpec, heightMeasureSpec);int height = 0;for (int i = 0; i < getChildCount(); i) {View child = getChildAt(i);(widthMeasureSpec, (0, MeasureSpec.USPECIFIED));int h = child.getMeasuredHeight() * 6;if (h > height)height = h;}heightMeasureSpec = (height, MeasureSpec.EXACTLY);(widthMeasureSpec, heightMeasureSpec);}private void init() {//此处设置为500初始化setAdapter(new PagerAdapter() {@Overridepublic int getCount() {return 1000;}@Overridepublic boolean isViewFromObject(View view, Object object) {return view == object;}@Overridepublic int getItemPosition(@onull Object object) {View view = (View) object;int currentPage = getCurrentItem(); // Get current page indexif (currentPage == (Integer) view.getTag()) {return POSITIO_OE;} else {return POSITIO_UCHAGED;}}@Overridepublic Object instantiateItem(ViewGroup container, final int position) {GridView  = initCalendar(position);.setTag(position);container.addView();return ;}@Overridepublic void destroyItem(ViewGroup container, int position, Object object) {container.removeView((View) object);}});}private GridView initCalendar(int position) {LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(AbsListView.LayoutParams.MATCH_PARET, AbsListView.LayoutParams.WRAP_COTET);GridView gView = new GridView(getContext());gView.setLayoutParams(params);gView.setumColumns(7);gView.setGravity(Gravity.CETER);gView.setSelector(new ColorDrawable(Color.TRASPARET));gView.setBackgroundColor(getResources().getColor(android.));DayAdapter dayAdapter = new DayAdapter(getContext());gView.setAdapter(dayAdapter);dayAdapter.setOnItemSelectListener(new DayAdapter.OnItemSelectListener() {@Overridepublic void onSelectItem(String day) {(day);}});Calendar calendar = Calendar.getInstance();calendar.setTime(new Date());calendar.add(Calendar.MOTH, position - 500);int y = calendar.get(Calendar.YEAR);int m = calendar.get(Calendar.MOTH)  1;int d = calendar.get(Calendar.DATE);List<CalendarBean> dayItemList = CalendarFactory.getMonthOfDayList(y, m);dayAdapter.setList(dayItemList);return gView;}public interface OnViewpagerListener {void onChildViewChange(String day);}}

  列表部分 listview/ recyclewview  根据当前的年月日请求后台数据

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