Xiaomi_ui/NotesListItem.java

/*
 * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
//实现功能：显示笔记列表项，包含了标题、时间、警告图标、呼叫名称（针对通话记录）和一个选择框。
//根据传入的数据类型（笔记或文件夹），它会动态地调整视图的显示，包括背景、警告图标、标题文本等。

package net.micode.notes.ui;

// 导入必要的包和类
import android.content.Context;
import android.text.format.DateUtils;
import android.view.View;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import net.micode.notes.R;
import net.micode.notes.data.Notes;
import net.micode.notes.tool.DataUtils;
import net.micode.notes.tool.ResourceParser.NoteItemBgResources;

// 自定义的LinearLayout，用于显示笔记列表项
public class NotesListItem extends LinearLayout {
    // 视图组件
    private ImageView mAlert; // 警告图标
    private TextView mTitle;  // 标题
    private TextView mTime;   // 时间
    private TextView mCallName; // 呼叫名称（针对通话记录）
    private NoteItemData mItemData; // 当前项的数据
    private CheckBox mCheckBox; // 选择框

    // 构造函数，初始化视图
    public NotesListItem(Context context) {
        super(context);
        inflate(context, R.layout.note_item, this); // 加载布局文件
        // 初始化视图组件
        mAlert = findViewById(R.id.iv_alert_icon);
        mTitle = findViewById(R.id.tv_title);
        mTime = findViewById(R.id.tv_time);
        mCallName = findViewById(R.id.tv_name);
        mCheckBox = findViewById(android.R.id.checkbox); // 注意：这里使用了Android内置的ID
    }

    // 绑定数据到视图
    public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) {
        // 根据choiceMode和数据类型设置CheckBox的可见性
        if (choiceMode && data.getType() == Notes.TYPE_NOTE) {
            mCheckBox.setVisibility(View.VISIBLE);
            mCheckBox.setChecked(checked);
        } else {
            mCheckBox.setVisibility(View.GONE);
        }

        mItemData = data; // 保存数据

        // 根据数据的不同情况设置不同的视图显示
        if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
            // 如果是通话记录文件夹
            mCallName.setVisibility(View.GONE);
            mAlert.setVisibility(View.VISIBLE);
            mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
            mTitle.setText(context.getString(R.string.call_record_folder_name)
                    + context.getString(R.string.format_folder_files_count, data.getNotesCount()));
            mAlert.setImageResource(R.drawable.call_record);
        } else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) {
            // 如果是通话记录文件夹下的项
            mCallName.setVisibility(View.VISIBLE);
            mCallName.setText(data.getCallName());
            mTitle.setTextAppearance(context, R.style.TextAppearanceSecondaryItem);
            mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
            if (data.hasAlert()) {
                mAlert.setImageResource(R.drawable.clock);
                mAlert.setVisibility(View.VISIBLE);
            } else {
                mAlert.setVisibility(View.GONE);
            }
        } else {
            // 其他情况
            mCallName.setVisibility(View.GONE);
            mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);

            if (data.getType() == Notes.TYPE_FOLDER) {
                // 如果是文件夹
                mTitle.setText(data.getSnippet()
                        + context.getString(R.string.format_folder_files_count, data.getNotesCount()));
                mAlert.setVisibility(View.GONE);
            } else {
                // 如果是笔记
                mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
                if (data.hasAlert()) {
                    mAlert.setImageResource(R.drawable.clock);
                    mAlert.setVisibility(View.VISIBLE);
                } else {
                    mAlert.setVisibility(View.GONE);
                }
            }
        }
        // 设置时间
        mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate()));

        // 设置背景
        setBackground(data);
    }

    // 根据数据设置背景
    private void setBackground(NoteItemData data) {
        int id = data.getBgColorId(); // 获取背景颜色ID
        if (data.getType() == Notes.TYPE_NOTE) {
            // 如果是笔记，根据笔记的位置设置不同的背景
            if (data.isSingle() || data.isOneFollowingFolder()) {
                setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id));
            } else if (data.isLast()) {
                setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id));
            } else if (data.isFirst() || data.isMultiFollowingFolder()) {
                setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id));
            } else {
                setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id));
            }
        } else {
            // 如果是文件夹，设置统一的背景
            setBackgroundResource(NoteItemBgResources.getFolderBgRes());
        }
    }

    // 获取当前项的数据
    public NoteItemData getItemData() {
        return mItemData;
    }
}