Android自定义日历滑动控件

<?xml version="1.0" encoding="utf-8"?><LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:id="@+id/activity_main"  android:layout_width="match_parent"  android:layout_height="wrap_content"  android:background="#ffffff"  android:padding="5dp"  android:orientation="horizontal">  <ImageView    android:id="@+id/iv_left"    android:layout_gravity="center_vertical"    android:src="@drawable/ic_launcher"    android:layout_width="31dp"    android:layout_height="31dp"/>  <android.support.v7.widget.RecyclerView    android:layout_marginLeft="5dp"    android:layout_marginRight="5dp"    android:id="@+id/recyclerView"    android:layout_width="wrap_content"    android:layout_weight="1"    android:layout_height="50dp"    android:layout_centerVertical="true"    android:background="#ffffff"    android:scrollbars="none" />  <ImageView    android:id="@+id/iv_right"    android:layout_gravity="center_vertical"    android:src="@drawable/ic_launcher"    android:layout_width="30dp"    android:layout_height="30dp"/></LinearLayout>

public class LRCalendarView extends LinearLayout {  private Context context;  private ImageView ivLeft, ivRight;  private RecyclerView mRecyclerView;  private GalleryAdapter mAdapter;  private List<Cell> data = new ArrayList<>();  private int mCurrYear, mCurrMonth, mCurrDay;  private int mSelYear, mSelMonth, mSelDay;  //今天的日期的position  private int todayPos;  public LRCalendarView(Context context, AttributeSet attrs, int defStyleAttr) {    super(context, attrs, defStyleAttr);    this.context = context;    setupView(context);  }  public LRCalendarView(Context context, AttributeSet attrs) {    this(context, attrs, 0);  }  public LRCalendarView(Context context) {    this(context, null);  }  /**   * 初始化控件   */  private void setupView(final Context context) {    View view = LayoutInflater.from(context).inflate(R.layout.calendar_view, null);    this.addView(view);    data = init();    mRecyclerView = (RecyclerView) findViewById(R.id.recyclerView);    ivLeft = (ImageView) findViewById(R.id.iv_left);    ivRight = (ImageView) findViewById(R.id.iv_right);    //设置manger    LinearLayoutManager linearLayoutManager = new LinearLayoutManager(context);    linearLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);    mRecyclerView.setLayoutManager(linearLayoutManager);    //设置adapter    mAdapter = new GalleryAdapter(context, init());    mRecyclerView.setAdapter(mAdapter);  }}

public class Cell {  private String day;  private String month;  private int mCurrDay;  private boolean isSelect;  public int getmCurrDay() {    return mCurrDay;  }  public void setmCurrDay(int mCurrDay) {    this.mCurrDay = mCurrDay;  }  public String getDay() {    return day;  }  public void setDay(String day) {    this.day = day;  }  public String getMonth() {    return month;  }  public void setMonth(String month) {    this.month = month;  }  public boolean isSelect() {    return isSelect;  }  public void setSelect(boolean select) {    isSelect = select;  }}

/**   * 初始化每个月的数据 */  private List<Cell> init() {    Calendar calendar = Calendar.getInstance();    mCurrYear = calendar.get(Calendar.YEAR);    mCurrMonth = calendar.get(Calendar.MONTH);    mCurrDay = calendar.get(Calendar.DATE);    return init(mCurrYear, mCurrMonth, mCurrDay, 0);  }

 /**   * @param flag 0：正常初始化日期 1：为左右点击的初始化日期   */  private List<Cell> init(int year, int month, int day, int flag) {    if (flag != 0) {      day = 1;    }    setSelectYearMonth(year, month, day);    List<Cell> listData = new ArrayList<>();    int mMonthDays = getMonthDays(year, month);    for (int i = 0; i < mMonthDays; i++) {      Cell cell = new Cell();      cell.setDay((i + 1) + "");      cell.setMonth((month + 1) + "月");      if (i + 1 == day) {        cell.setmCurrDay(day);        todayPos = day;      }      listData.add(cell);    }    return listData;  }  private void setSelectYearMonth(int year, int month, int day) {    mSelYear = year;    mSelMonth = month;    mSelDay = day;}

/**   * 通过年份和月份 得到当月的日子   *   * @param year   * @param month   * @return */  public int getMonthDays(int year, int month) {    month++;    switch (month) {      case 1:      case 3:      case 5:      case 7:      case 8:      case 10:      case 12:        return 31;      case 4:      case 6:      case 9:      case 11:        return 30;      case 2:        if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) {          return 29;        } else {          return 28;        }      default:        return -1;    }}

class GalleryAdapter extends RecyclerView.Adapter<GalleryAdapter.ViewHolder> {  private LayoutInflater mInflater;  private List<Cell> mDatas;  /**   * 用来记录点击的item   */  private int selectedPos;  private boolean isClick;  public GalleryAdapter(Context context, List<Cell> data) {    mInflater = LayoutInflater.from(context);    this.mDatas = data;  }  public void setList(List<Cell> data) {    this.mDatas = data;    isClick = false;  }  public static class ViewHolder extends RecyclerView.ViewHolder {    public ViewHolder(View view) {      super(view);      tv1 = (TextView) view.findViewById(R.id.textView1);      tv2 = (TextView) view.findViewById(R.id.textView2);      linearLayout = (LinearLayout) view.findViewById(R.id.ll);    }    TextView tv1;    TextView tv2;    LinearLayout linearLayout;  }  @Override  public int getItemCount() {    return mDatas.size();  }  /**   * 创建ViewHolder   */  @Override  public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {    View view = mInflater.inflate(R.layout.cell, null);    ViewHolder viewHolder = new ViewHolder(view);    return viewHolder;  }  /**   * 设置值   */  @Override  public void onBindViewHolder(final ViewHolder viewHolder, final int i) {    if (!isClick) {      selectedPos = Integer.valueOf(mDatas.get(i).getmCurrDay());      selectedPos -= 1;    }    viewHolder.tv1.setText(mDatas.get(i).getDay());    viewHolder.tv2.setText(mDatas.get(i).getMonth());    if (selectedPos == i) {      viewHolder.linearLayout.setSelected(true);    } else {      viewHolder.linearLayout.setSelected(false);    }    //如果设置了回调，则设置点击事件    if (mOnItemClickLitener != null) {      viewHolder.itemView.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View v) {          isClick = true;          clearSelection(i);          notifyDataSetChanged();          String date = mDatas.get(i).getMonth() + mDatas.get(i).getDay();          mOnItemClickLitener.onItemClick(viewHolder.itemView, i, date);        }      });    }  }  public void clearSelection(int pos) {    selectedPos = pos;  }  private OnItemClickLitener mOnItemClickLitener;  public interface OnItemClickLitener {    void onItemClick(View view, int position, String date);  }  public void setOnItemClickLitener(OnItemClickLitener mOnItemClickLitener) {    this.mOnItemClickLitener = mOnItemClickLitener;}

 ivLeft.setOnClickListener(new OnClickListener() {      @Override      public void onClick(View v) {        data.clear();        data.addAll(onLeftClick(mSelYear, mSelMonth, mSelDay));        mAdapter.setList(data);        mAdapter.notifyDataSetChanged();        mRecyclerView.scrollToPosition(0);      }    });  ivRight.setOnClickListener(new OnClickListener() {      @Override      public void onClick(View v) {        data.clear();        data.addAll(onRightClick(mSelYear, mSelMonth, mSelDay));        mAdapter.setList(data);        mAdapter.notifyDataSetChanged();        mRecyclerView.scrollToPosition(0);      }    });

 /**   * 左点击，日历向后翻页   */  public List<Cell> onLeftClick(int mSelYear, int mSelMonth, int mSelDay) {    int year = mSelYear;    int month = mSelMonth;    int day = mSelDay;    if (month == 0) {//若果是1月份，则变成12月份      year = mSelYear - 1;      month = 11;    } else if (getMonthDays(year, month) == day) {      //如果当前日期为该月最后一点，当向前推的时候，就需要改变选中的日期      month = month - 1;      day = getMonthDays(year, month);    } else {      month = month - 1;    }    return init(year, month, day, 1);  }  /**   * 右点击，日历向后翻页   */  public List<Cell> onRightClick(int mSelYear, int mSelMonth, int mSelDay) {    int year = mSelYear;    int month = mSelMonth;    int day = mSelDay;    if (month == 11) {//若果是12月份，则变成1月份      year = mSelYear + 1;      month = 0;    } else if (getMonthDays(year, month) == day) {      //如果当前日期为该月最后一点，当向前推的时候，就需要改变选中的日期      month = month + 1;      day = getMonthDays(year, month);    } else {      month = month + 1;    }    return init(year, month, day, 1);}

mAdapter.setOnItemClickLitener(new GalleryAdapter.OnItemClickLitener() {      @Override      public void onItemClick(View view, int position, String date) {        Toast.makeText(context.getApplicationContext(), date, Toast.LENGTH_SHORT).show();      }    });

<com.lzz.lzzsdk.widget.calenadrView.LRCalendarView  android:id="@+id/bottom_bar"  android:layout_width="match_parent"  android:layout_height="wrap_content"/>