Android记事本NotePad应用功能拓展（三）

一、实现功能

1.笔记分类（Note）

二、项目代码分析

1.标签类相关代码

相关类分析

SpinnerItem：分类
TagAdapterr：连接Tag数据库的适配器接口

SpinnerItem

package com.example.atry;

public class SpinnerItem {

    private String tagName;
    private int tagId;

    public SpinnerItem(String tagName, int tagId) {
        this.tagName = tagName;
        this.tagId = tagId;
    }

    public String getTagName() {
        return tagName;
    }

    public void setTagName(String tagName) {
        this.tagName = tagName;
    }

    public int getTagId() {
        return tagId;
    }

    public void setTagId(int tagId) {
        this.tagId = tagId;
    }
}

TagAdapter

package com.example.atry;

import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import java.util.List;

public class TagAdapter extends BaseAdapter {

    private Context context;
    private List<String> tagList;
    private List<Integer> numList;

    public TagAdapter(Context context, List<String> tagList, List<Integer> numList) {
        this.context = context;
        this.tagList = tagList;
        this.numList = numList;

    }

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

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

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        for(int i = 0; i < numList.size(); i++) Log.d("tag", numList.get(i).toString());
        Log.d("tag", "getView: " + numList.size());
        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
        context.setTheme((sharedPreferences.getBoolean("nightMode", false)? R.style.NightTheme: R.style.DayTheme));
        View v = View.inflate(context, R.layout.tag_layout, null);
        TextView blank_tag = v.findViewById(R.id.blank_tag);
        TextView text_tag = v.findViewById(R.id.text_tag);
        ImageView delete_tag = v.findViewById(R.id.delete_tag);

        blank_tag.setText(numList.get(position).toString());
        text_tag.setText(tagList.get(position));


        return v;
    }
}

三、参考资料

相关参考：Android记事本NotePad应用功能拓展（一）
作者GitHub下载链接：https://github.com/KangKangBigWorld/Android/tree/master/Mid_Test