本文将带你了解Android应用开发Android简单实现app每月签到功能，希望本文对大家学Android有所帮助。

本文实例为大家分享了Android实现app每月签到功能的具体代码，供大家参考，具体内容如下

先上一张效果图：

其中这些签到的效果图是在网上找的，然后重要用到的控件就是   GridvVew 了， 代码很简单，只有3个代码文件：

MainActivity.class   文件

package zhanghuan.cn.checkdesign;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.widget.GridView;

import android.widget.TextView;

import java.util.ArrayList;

import java.util.Calendar;

import java.util.List;

import java.util.Locale;

public class MainActivity extends AppCompatActivity {

private   List   checkBeanList;

private MyAdapter   mAdapter;

private GridView   mGridview;

private TextView monthTxt;

@Override

protected void   onCreate(Bundle savedInstanceState)   {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

initDate();

}

private void initDate() {

Calendar calendar =   Calendar.getInstance(Locale.CHINA);

int month = calendar.get(Calendar.MONTH) + 1;

int day = calendar.getActualMaximum(Calendar.DATE);   //   获取当前月的天数

checkBeanList = new ArrayList();

for (int i   = 0; i   < day + 1; i++)   {

CheckBean checkBean = new CheckBean();

if ((int)   (Math.random() * 20 %   4) == 3)   {

checkBean.day =   i;

checkBean.check_status =   CheckBean.CHECKED;

} else if ((int) (Math.random() * 20 % 4) == 2)   {

checkBean.day =   i;

checkBean.check_status =   CheckBean.CHECK_NO;

} else {

checkBean.day =   i;

checkBean.check_status =   CheckBean.CHECK_WAIT;

}

checkBeanList.add(checkBean);

}

monthTxt =   (TextView)findViewById(R.id.item_month);

if (month < 1 ||   month > 12)   {

month = 1;

}

monthTxt.setText("当前签到月份是：" + month);

mAdapter = new MyAdapter(MainActivity.this);

mAdapter.setListDate(checkBeanList);

mGridview = (GridView)   findViewById(R.id.main_gridview);

mGridview.setAdapter(mAdapter);

}

}

适配器文件：MyAdapter.class

package zhanghuan.cn.checkdesign;

import android.content.Context;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.ImageView;

import android.widget.TextView;

import android.widget.Toast;

import java.util.List;

/**

* Created by zhanghuan on   2016/3/8.

*/

public class MyAdapter extends BaseAdapter {

private Context mContext;

private List   checkBeanList;

public MyAdapter(Context context) {

mContext = context;

}

public void setListDate(List checklist)   {

checkBeanList = checklist;

}

@Override

public int getCount() {

return checkBeanList.size();

}

@Override

public Object   getItem(int position) {

return checkBeanList.get(position);

}

@Override

public long getItemId(int position) {

return position;

}

@Override

public View getView(final   int position, View convertView, ViewGroup parent)   {

final MyHoder hoder;

if (convertView == null)   {

convertView =   LayoutInflater.from(mContext).inflate(R.layout.check_item, null);

hoder = new MyHoder();

hoder.day = (TextView)   convertView.findViewById(R.id.item_day);

hoder.status = (ImageView)   convertView.findViewById(R.id.item_image);

convertView.setTag(hoder);

} else {

hoder = (MyHoder) convertView.getTag();

}

hoder.day.setText("day" + checkBeanList.get(position).day);

if (checkBeanList.get(position).check_status ==   CheckBean.CHECK_NO) {

hoder.status.setImageResource(R.mipmap.check_no);

hoder.status.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

Toast.makeText(mContext, "恭喜你，签到成功！",   Toast.LENGTH_SHORT).show();

hoder.status.setImageResource(R.mipmap.checked);

hoder.status.setClickable(false);

checkBeanList.get(position).check_status =   CheckBean.CHECKED;

/* 在此做一些签到请求的处理   */

}

});

} else if (checkBeanList.get(position).check_status ==   CheckBean.CHECK_WAIT) {

hoder.status.setImageResource(R.mipmap.check_wait);

} else if (checkBeanList.get(position).check_status ==   CheckBean.CHECKED) {

hoder.status.setImageResource(R.mipmap.checked);

}

return convertView;

}

private static class MyHoder {

TextView day;

ImageView status;

}

}

CheckBean.class   文件：

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