Android自定义日历Calender代码实现

package com.example.calenderdemo;

import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class CalendarViewAdapter extends BaseAdapter {

 private Context mContext;
 private int mCountDay = 49;
 private int mCurrent_mouth_Countday;
 private int mCurrent_Week;
 private int id[] = { R.string.week7, R.string.week1, R.string.week2,
 R.string.week3, R.string.week4, R.string.week5, R.string.week6 };

 public CalendarViewAdapter(Context context, int countday) {
 this.mContext = context;
 this.mCurrent_Week = Utils.getCurrentMonthStart();
 this.mCurrent_mouth_Countday = countday;
 }

 @Override
 public int getCount() {
 return mCountDay;
 }

 @Override
 public Object getItem(int position) {
 return null;
 }

 @Override
 public long getItemId(int position) {
 return position;
 }

 @Override
 public View getView(int position, View convertView, ViewGroup parent) {
 ViewHolder holder = null;
 if (convertView == null) {
 holder = new ViewHolder();
 convertView = LayoutInflater.from(mContext).inflate(
  R.layout.item_calendar, null);
 holder.mTv_calendar_day = (TextView) convertView
  .findViewById(R.id.tv_calendar_day);
 convertView.setTag(holder);
 } else
 holder = (ViewHolder) convertView.getTag();
 if (position <= 6) {
 holder.mTv_calendar_day.setTextColor(Color.BLACK);
 holder.mTv_calendar_day.setTextSize(mContext.getResources()
  .getDimension(R.dimen.text_size_7));
 holder.mTv_calendar_day.setText(mContext.getResources().getString(
  id[position]));
 } else {
 if (mCurrent_Week == 7 && (position -6) <= mCurrent_mouth_Countday) {
 holder.mTv_calendar_day.setText(position-6 + "");
 } else if (position -7>= mCurrent_Week
  && position - mCurrent_Week -6 <= mCurrent_mouth_Countday) {
 holder.mTv_calendar_day.setText(position - mCurrent_Week -6
  + "");
 }
 
 }
 if (position % 7 == 6) {
 holder.mTv_calendar_day.setBackgroundResource(R.drawable.line_right);
 }else if (position % 7 == 0) {
 holder.mTv_calendar_day.setBackgroundResource(R.drawable.line_left);
 }
 return convertView;
 }

 class ViewHolder {
 TextView mTv_calendar_day;
 }
}