日历界面编写

作者：@kuaiquxie
作者的github：https://github.com/bitebita
本文为作者原创，如需转载，请注明出处：https://www.cnblogs.com/dzwj/p/15881107.html

---

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/white">
    <HorizontalScrollView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        <LinearLayout
            android:id="@+id/dialog_calendar_layout"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

        </LinearLayout>
    </HorizontalScrollView>

    <GridView
        android:id="@+id/dialog_calendar_gv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#2196F3"
        android:numColumns="4" />
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/dialog_calendar_iv"
        android:src="@mipmap/ih_error"
        android:padding="20dp"/>
</LinearLayout>

 

为日历添加适配器

package com.example.easycash.adapter;

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;

import androidx.core.content.ContextCompat;

import com.example.easycash.R;

import java.util.ArrayList;
import java.util.List;

/*
* 历史账单界面，点击日历表，弹出对话框，当中的GridView对应的适配器
* */
public class CalendarAdapter extends BaseAdapter {
    Context context;
    List<String>mDatas;
    public int year;
    public int selPos = -1;

    public void setYear(int year) {
        this.year = year;
        mDatas.clear();
        loadDatas(year);
        notifyDataSetChanged();
    }

    public CalendarAdapter(Context context, int year) {
        this.context = context;
        this.year = year;
        mDatas = new ArrayList<>();
        loadDatas(year);
    }

    private void loadDatas(int year) {
        for (int i = 1; i < 13; i++) {
            String data = year+"/"+i;
            mDatas.add(data);
        }
    }

    @Override
    public int getCount() {
        return mDatas.size();
    }

    @Override
    public Object getItem(int position) {
        return mDatas.get(position);
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        convertView = LayoutInflater.from(context).inflate(R.layout.item_dialogcal_gv,parent,false);
        TextView tv = convertView.findViewById(R.id.item_dialogcal_gv_tv);
        tv.setText(mDatas.get(position));
        tv.setBackgroundResource(R.color.grey_f3f3f3);
        tv.setTextColor(Color.BLACK);
        if (position == selPos) {
            tv.setBackgroundResource(R.color.green_006400);
            tv.setTextColor(Color.WHITE);
        }
        return convertView;
    }
}