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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*这段代码展示了 NotesListItem 类的实现，它是 Android 应用程序中的一个自定义视图，用于显示笔记列表中的单个条目*/
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package net.micode.notes.ui;
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import android.content.Context;
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import android.text.format.DateUtils;
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import android.view.View;
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import android.widget.CheckBox;
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import android.widget.ImageView;
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import android.widget.LinearLayout;
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import android.widget.TextView;
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import net.micode.notes.R;
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import net.micode.notes.data.Notes;
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import net.micode.notes.tool.DataUtils;
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import net.micode.notes.tool.ResourceParser.NoteItemBgResources;
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public class NotesListItem extends LinearLayout {
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private ImageView mAlert;
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private TextView mTitle;
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private TextView mTime;
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private TextView mCallName;
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private NoteItemData mItemData;
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private CheckBox mCheckBox;
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public NotesListItem(Context context) {
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super(context);
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inflate(context, R.layout.note_item, this);
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mAlert = (ImageView) findViewById(R.id.iv_alert_icon);
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mTitle = (TextView) findViewById(R.id.tv_title);
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mTime = (TextView) findViewById(R.id.tv_time);
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mCallName = (TextView) findViewById(R.id.tv_name);
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mCheckBox = (CheckBox) findViewById(android.R.id.checkbox);
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} /*构造函数初始化了一个 LinearLayout 并且使用 inflate 方法加载了布局文件 note_item。此外，还初始化了与笔记条目相关的各个控件，例如图标、标题、时间和复选框等*/
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public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) {
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if (choiceMode && data.getType() == Notes.TYPE_NOTE) {
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mCheckBox.setVisibility(View.VISIBLE);
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mCheckBox.setChecked(checked);
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} else {
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mCheckBox.setVisibility(View.GONE);
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}
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mItemData = data;
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if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
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mCallName.setVisibility(View.GONE);
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mAlert.setVisibility(View.VISIBLE);
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mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
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mTitle.setText(context.getString(R.string.call_record_folder_name)
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+ context.getString(R.string.format_folder_files_count, data.getNotesCount()));
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mAlert.setImageResource(R.drawable.call_record);
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} else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) {
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mCallName.setVisibility(View.VISIBLE);
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mCallName.setText(data.getCallName());
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mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem);
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mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
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if (data.hasAlert()) {
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mAlert.setImageResource(R.drawable.clock);
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mAlert.setVisibility(View.VISIBLE);
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} else {
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mAlert.setVisibility(View.GONE);
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}
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} else {
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mCallName.setVisibility(View.GONE);
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mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
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if (data.getType() == Notes.TYPE_FOLDER) {
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mTitle.setText(data.getSnippet()
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+ context.getString(R.string.format_folder_files_count,
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data.getNotesCount()));
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mAlert.setVisibility(View.GONE);
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} else {
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mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
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if (data.hasAlert()) {
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mAlert.setImageResource(R.drawable.clock);
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mAlert.setVisibility(View.VISIBLE);
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} else {
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mAlert.setVisibility(View.GONE);
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}
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}
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}
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mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate()));
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setBackground(data);
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}
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/*绑定数据
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此方法用于将数据绑定到视图组件上。它接收四个参数：
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context：当前上下文。
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data：包含条目信息的 NoteItemData 对象。
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choiceMode：指示当前是否处于选择模式。
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checked：指示当前条目是否被选中。
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方法根据不同的条件设置视图的可见性、文本、背景图像等属性。例如，如果当前是选择模式且条目类型为笔记，则显示复选框并设置其状态。对于不同类型的笔记（文件夹、通话记录等），设置不同的标题文本和图标。最后，更新条目的修改时间显示。*/
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private void setBackground(NoteItemData data) {
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int id = data.getBgColorId();
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if (data.getType() == Notes.TYPE_NOTE) {
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if (data.isSingle() || data.isOneFollowingFolder()) {
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setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id));
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} else if (data.isLast()) {
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setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id));
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} else if (data.isFirst() || data.isMultiFollowingFolder()) {
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setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id));
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} else {
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setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id));
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}
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} else {
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setBackgroundResource(NoteItemBgResources.getFolderBgRes());
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}
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}
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/*设置背景
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此方法根据条目的类型和特性来设置条目的背景。对于笔记，根据是否是单个、最后一个、第一个还是多个中间的一个来设置不同的背景资源。对于文件夹，设置统一的文件夹背景资源*/
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public NoteItemData getItemData() {
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return mItemData;
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}
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} /*此方法返回当前绑定到该视图的 NoteItemData 对象，使得其他组件可以通过这个方法获取条目的数据*/
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