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.
 */

// 包声明，指明这个类属于哪个包
package net.micode.notes.ui;

// 导入所需的Android SDK类和包
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;

// 导入Notes应用特有的资源和数据类
import net.micode.notes.R;
import net.micode.notes.data.Notes;
import net.micode.notes.tool.DataUtils;
import net.micode.notes.tool.ResourceParser.NoteItemBgResources;

// NotesListItem类继承自LinearLayout，用于显示单个笔记列表项的视图
public class NotesListItem extends LinearLayout {
    // 类的成员变量
    private ImageView mAlert; // 用于显示提醒图标的ImageView
    private TextView mTitle; // 显示标题的TextView
    private TextView mTime; // 显示时间的TextView
    private TextView mCallName; // 显示来电姓名的TextView
    private NoteItemData mItemData; // 包含笔记数据的NoteItemData对象
    private CheckBox mCheckBox; // 用于选择模式的CheckBox

    // 构造函数，初始化视图
    public NotesListItem(Context context) {
        super(context); // 调用父类的构造函数
        inflate(context, R.layout.note_item, this); // 将布局文件inflate到当前视图中
        mAlert = (ImageView) findViewById(R.id.iv_alert_icon); // 获取布局中的ImageView
        mTitle = (TextView) findViewById(R.id.tv_title); // 获取布局中的TextView
        mTime = (TextView) findViewById(R.id.tv_time); // 获取布局中的TextView
        mCallName = (TextView) findViewById(R.id.tv_name); // 获取布局中的TextView
        mCheckBox = (CheckBox) findViewById(android.R.id.checkbox); // 获取布局中的CheckBox
    }

    // bind方法，用于将数据绑定到视图上
    public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) {
        // 根据是否处于选择模式和笔记类型，设置CheckBox的可见性和选中状态
        if (choiceMode && data.getType() == Notes.TYPE_NOTE) {
            mCheckBox.setVisibility(View.VISIBLE);
            mCheckBox.setChecked(checked);
        } else {
            mCheckBox.setVisibility(View.GONE);
        }

        mItemData = data; // 保存NoteItemData对象
        // 根据笔记数据的不同类型，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笔记
            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 {
            // 其他类型的笔记
            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 {
                // 普通笔记
                mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
                if (data.hasAlert()) {
                    mAlert.setImageResource(R.drawable.clock);
                    mAlert.setVisibility(View.VISIBLE);
                } else {
                    mAlert.setVisibility(View.GONE);
                }
            }
        }
        // 设置时间显示
        mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate()));
        // 设置背景
        setBackground(data);
    }

    // setBackground方法，用于设置视图的背景
    private void setBackground(NoteItemData data) {
        int id = data.getBgColorId(); // 获取背景颜色ID
        // 根据笔记类型和位置设置不同的背景资源
        if (data.getType() == Notes.TYPE_NOTE) {
            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 {
            setBackgroundResource(NoteItemBgResources.getFolderBgRes());
        }
    }

    // getItemData方法，用于获取当前项的NoteItemData对象
    public NoteItemData getItemData() {
        return mItemData;
    }
}