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