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drc tijiao

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chengshuaishuai 10 months ago
parent 7c191cb0f8
commit e9ad8751eb
3 changed files with 264 additions and 0 deletions
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131
src/widget/NoteWidgetProvider.java
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/**
* 便签桌面小部件的基类，提供通用功能实现
* 支持显示便签内容并处理点击事件，派生类需实现UI细节
*/public abstract class NoteWidgetProvider extends AppWidgetProvider {
// 查询便签数据时需要的字段列表
public static final String [] PROJECTION = new String [] {
NoteColumns.ID, // 便签ID
NoteColumns.BG_COLOR_ID, // 便签背景色ID
NoteColumns.SNIPPET // 便签摘要内容
};
// 投影列索引常量，提高代码可读性
public static final int COLUMN_ID = 0;
public static final int COLUMN_BG_COLOR_ID = 1;
public static final int COLUMN_SNIPPET = 2;
private static final String TAG = "NoteWidgetProvider";
/**
* 当小部件被删除时调用
* 将对应数据库记录中的widget_id字段置为无效值
*/
@Override
public void onDeleted(Context context, int[] appWidgetIds) {
ContentValues values = new ContentValues();
values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
for (int i = 0; i < appWidgetIds.length; i++) {
// 更新数据库，解除便签与被删除小部件的关联
context.getContentResolver().update(Notes.CONTENT_NOTE_URI,
values,
NoteColumns.WIDGET_ID + "=?",
new String[] { String.valueOf(appWidgetIds[i])});
}
}
/**
* 获取与指定小部件ID关联的便签信息
* 过滤条件：widget_id匹配且不在回收站
*/
private Cursor getNoteWidgetInfo(Context context, int widgetId) {
return context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
PROJECTION,
NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?",
new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) },
null);
}
/**
* 更新小部件UI（隐私模式关闭）
*/
protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
update(context, appWidgetManager, appWidgetIds, false);
}
/**
* 核心更新逻辑，支持隐私模式
* 1. 查询便签数据
* 2. 设置背景和内容
* 3. 配置点击事件
*/
private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
boolean privacyMode) {
for (int i = 0; i < appWidgetIds.length; i++) {
if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
// 初始化默认值
int bgId = ResourceParser.getDefaultBgId(context);
String snippet = "";
// 创建点击小部件时的意图
Intent intent = new Intent(context, NoteEditActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
// 查询数据库获取便签信息
Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
if (c != null && c.moveToFirst()) {
// 检查是否存在多个便签关联到同一小部件ID（异常情况）
if (c.getCount() > 1) {
Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);
c.close();
return;
}
// 从查询结果中获取便签内容和背景
snippet = c.getString(COLUMN_SNIPPET);
bgId = c.getInt(COLUMN_BG_COLOR_ID);
intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID));
intent.setAction(Intent.ACTION_VIEW); // 设置为查看模式
} else {
// 若无关联便签，显示提示信息并设置为新建模式
snippet = context.getResources().getString(R.string.widget_havenot_content);
intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
}
// 关闭游标释放资源
if (c != null) {
c.close();
}
// 创建RemoteViews并设置UI元素
RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());
rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
// 根据隐私模式设置不同的点击行为
PendingIntent pendingIntent = null;
if (privacyMode) {
// 隐私模式：显示提示信息并跳转到便签列表
rv.setTextViewText(R.id.widget_text,
context.getString(R.string.widget_under_visit_mode));
pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i],
new Intent(context, NotesListActivity.class),
PendingIntent.FLAG_UPDATE_CURRENT);
} else {
// 正常模式：显示便签内容并跳转到便签编辑页
rv.setTextViewText(R.id.widget_text, snippet);
pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent,
PendingIntent.FLAG_UPDATE_CURRENT);
}
// 设置点击事件并更新小部件
rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
}
}
}
// 由派生类实现的抽象方法，用于定制UI细节
protected abstract int getBgResourceId(int bgId); // 获取背景资源ID
protected abstract int getLayoutId(); // 获取布局资源ID
protected abstract int getWidgetType(); // 获取小部件类型}

67
src/widget/NoteWidgetProvider_2x.java
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/*
* 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.
*/
package net.micode.notes.widget;
import android.appwidget.AppWidgetManager;import android.content.Context;
import net.micode.notes.R;import net.micode.notes.data.Notes;import net.micode.notes.tool.ResourceParser;
/**
* NoteWidgetProvider_2x 是一个用于处理 2x 尺寸桌面小部件的组件
* 继承自 NoteWidgetProvider 基类，负责特定尺寸小部件的更新和显示
*/public class NoteWidgetProvider_2x extends NoteWidgetProvider {
/**
* 当小部件需要更新时调用此方法
*
* @param context 应用上下文
* @param appWidgetManager 小部件管理器
* @param appWidgetIds 需要更新的小部件ID数组
*/
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
// 调用父类的更新方法处理通用逻辑
super.update(context, appWidgetManager, appWidgetIds);
}
/**
* 获取此小部件使用的布局资源ID
*
* @return 布局资源ID (R.layout.widget_2x)
*/
@Override
protected int getLayoutId() {
return R.layout.widget_2x;
}
/**
* 根据背景ID获取对应的背景资源
*
* @param bgId 背景ID，用于标识不同的背景样式
* @return 背景资源ID
*/
@Override
protected int getBgResourceId(int bgId) {
// 通过资源解析工具获取2x小部件的背景资源
return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId);
}
/**
* 获取当前小部件的类型
*
* @return 小部件类型常量 (Notes.TYPE_WIDGET_2X)
*/
@Override
protected int getWidgetType() {
return Notes.TYPE_WIDGET_2X;
}}

66
src/widget/NoteWidgetProvider_4x.java
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/*
* 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.
*/
package net.micode.notes.widget;
import android.appwidget.AppWidgetManager;import android.content.Context;
import net.micode.notes.R;import net.micode.notes.data.Notes;import net.micode.notes.tool.ResourceParser;
/**
* 4x大小的便签桌面小部件提供者类。
* 继承自NoteWidgetProvider，用于处理4x大小便签小部件的更新和显示。
*/public class NoteWidgetProvider_4x extends NoteWidgetProvider {
/**
* 当小部件更新时调用的方法。
*
* @param context 应用程序上下文
* @param appWidgetManager 小部件管理器
* @param appWidgetIds 需要更新的小部件ID数组
*/
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
// 调用父类的更新方法处理小部件更新逻辑
super.update(context, appWidgetManager, appWidgetIds);
}
/**
* 获取小部件布局资源ID。
*
* @return 4x小部件的布局资源ID
*/
protected int getLayoutId() {
return R.layout.widget_4x;
}
/**
* 根据背景ID获取对应的背景资源ID。
*
* @param bgId 背景ID
* @return 对应的背景资源ID
*/
@Override
protected int getBgResourceId(int bgId) {
// 使用资源解析器工具类获取4x小部件的背景资源
return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId);
}
/**
* 获取小部件类型。
*
* @return 小部件类型常量，这里表示4x大小的便签小部件
*/
@Override
protected int getWidgetType() {
return Notes.TYPE_WIDGET_4X;
}}
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