From 0f977e37173a12bdf82e7b0d35c06580198cbed6 Mon Sep 17 00:00:00 2001 From: gaoxiaorui <3502644298@qq.com> Date: Wed, 9 Oct 2024 23:16:53 +0800 Subject: [PATCH] =?UTF-8?q?=E6=B3=A8=E9=87=8A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- AlarmAlertActivity.java | 197 ++++++++++++++++++++++++++++++++++++++++ AlarmInitReceiver.java | 81 +++++++++++++++++ AlarmReceiver.java | 36 ++++++++ 3 files changed, 314 insertions(+) create mode 100644 AlarmAlertActivity.java create mode 100644 AlarmInitReceiver.java create mode 100644 AlarmReceiver.java diff --git a/AlarmAlertActivity.java b/AlarmAlertActivity.java new file mode 100644 index 0000000..a79b0fa --- /dev/null +++ b/AlarmAlertActivity.java @@ -0,0 +1,197 @@ +/* + * 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.ui; + +import android.app.Activity;// 活动的基类 +import android.app.AlertDialog;// 用于创建警告对话框 +import android.content.Context; // 提供访问应用程序特定资源的上下文 +import android.content.DialogInterface; // 对话框交互接口 +import android.content.Intent; // 创建启动新活动的意图 +import android.media.AudioManager; // 管理音频设置 +import android.media.MediaPlayer; // 播放音频文件 +import android.media.RingtoneManager; // 访问系统铃声 +import android.net.Uri; // 表示URI +import android.os.Bundle;// 在活动之间传递数据 +import android.os.PowerManager; // 管理电源状态 +import android.provider.Settings; // 系统设置 +import android.view.Window; // 窗口管理 +import android.view.WindowManager;// 管理窗口 + +import net.micode.notes.R; // 导入资源引用 +import net.micode.notes.data.Notes; // 导入笔记数据模型 +import net.micode.notes.tool.DataUtils; // 数据操作的工具函数 + +import java.io.IOException; // 处理IO异常 + + +public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { + private long mNoteId; + // 笔记的唯一标识 + private String mSnippet; + // 笔记的内容片段 + private static final int SNIPPET_PREW_MAX_LEN = 60; + // 内容片段的最大长度 + MediaPlayer mPlayer; + // 媒体播放器，用于播放警报音 + + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + requestWindowFeature(Window.FEATURE_NO_TITLE); + // 请求无标题窗口 + + final Window win = getWindow(); + // 设置窗口标志，使其在锁屏时可见 + win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); + + // 如果屏幕未亮，则设置相关标志 + if (!isScreenOn()) { + win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON + // 保持屏幕常亮 + | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON + // 打开屏幕 + | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON + // 允许锁定屏幕 + | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); + // 窗口布局插入装饰 + } + + Intent intent = getIntent(); + // 获取启动活动的意图 + + try { + // 从意图中提取笔记ID + mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); + // 根据笔记ID获取内容片段 + mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); + // 如果内容片段超过最大长度，则进行截断处理 + mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, + SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) + : mSnippet; + } catch (IllegalArgumentException e) { + e.printStackTrace(); // 打印异常堆栈信息 + return; // 发生异常时返回 + } + + mPlayer = new MediaPlayer(); // 初始化媒体播放器 + // 检查笔记是否在数据库中可见 + if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { + showActionDialog(); // 显示操作对话框 + playAlarmSound(); // 播放警报声音 + } else { + finish(); + // 如果不可见，则结束活动 + } + } + + // 检查屏幕是否开启的方法 + private boolean isScreenOn() { + PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); + return pm.isScreenOn(); + // 返回屏幕状态 + } +} + + private void playAlarmSound() { + // 获取默认的闹钟铃声URI + Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); + + // 获取影响静音模式的流类型 + int silentModeStreams = Settings.System.getInt(getContentResolver(), + Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); + + // 检查静音模式下是否包括闹钟流 + if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { + mPlayer.setAudioStreamType(silentModeStreams); + // 设置音频流类型为静音模式 + } else { + mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); + // 设置为闹钟流 + } + + try { + // 设置数据源为铃声URI + mPlayer.setDataSource(this, url); + mPlayer.prepare(); + // 准备播放器 + mPlayer.setLooping(true); + // 设置循环播放 + mPlayer.start(); + // 开始播放 + } catch (IllegalArgumentException e) { + e.printStackTrace(); // 打印异常信息 + } catch (SecurityException e) { + e.printStackTrace(); // 打印异常信息 + } catch (IllegalStateException e) { + e.printStackTrace(); // 打印异常信息 + } catch (IOException e) { + e.printStackTrace(); // 打印异常信息 + } +} + +private void showActionDialog() { + AlertDialog.Builder dialog = new AlertDialog.Builder(this); + dialog.setTitle(R.string.app_name); + // 设置对话框标题 + dialog.setMessage(mSnippet); + // 设置对话框消息内容 + dialog.setPositiveButton(R.string.notealert_ok, this); + // 设置确认按钮 + + // 如果屏幕已开启，设置取消按钮 + if (isScreenOn()) { + dialog.setNegativeButton(R.string.notealert_enter, this); + } + + dialog.show().setOnDismissListener(this); + // 显示对话框并设置消失监听器 +} + +public void onClick(DialogInterface dialog, int which) { + switch (which) { + case DialogInterface.BUTTON_NEGATIVE: + // 点击取消按钮时，启动编辑笔记活动 + Intent intent = new Intent(this, NoteEditActivity.class); + intent.setAction(Intent.ACTION_VIEW); + intent.putExtra(Intent.EXTRA_UID, mNoteId); + // 传递笔记ID + startActivity(intent); + // 启动活动 + break; + default: + break; // 默认情况不处理 + } +} + +public void onDismiss(DialogInterface dialog) { + stopAlarmSound(); + // 停止播放警报声音 + finish(); + // 结束当前活动 +} + +private void stopAlarmSound() { + if (mPlayer != null) { + mPlayer.stop(); + // 停止播放 + mPlayer.release(); + // 释放媒体播放器资源 + mPlayer = null; + // 清空播放器引用 + } +} diff --git a/AlarmInitReceiver.java b/AlarmInitReceiver.java new file mode 100644 index 0000000..5b6d083 --- /dev/null +++ b/AlarmInitReceiver.java @@ -0,0 +1,81 @@ +/* + * 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.ui; + +// 导入所需的Android类 +import android.app.AlarmManager; // 用于管理闹钟服务 +import android.app.PendingIntent; // 用于延迟执行的意图 +import android.content.BroadcastReceiver; // 广播接收器基类 +import android.content.ContentUris; // 用于处理内容URI +import android.content.Context; // 上下文类 +import android.content.Intent; // 意图类 +import android.database.Cursor; // 数据库结果集游标 + +// 导入笔记相关的数据类 +import net.micode.notes.data.Notes; // 笔记数据类 +import net.micode.notes.data.Notes.NoteColumns; // 笔记列定义类 + + +public class AlarmInitReceiver extends BroadcastReceiver { + + // 定义要查询的列 + private static final String [] PROJECTION = new String [] { + NoteColumns.ID, + // 笔记ID + NoteColumns.ALERTED_DATE + // 警报日期 + }; + + // 列索引 + private static final int COLUMN_ID = 0; + // ID列索引 + private static final int COLUMN_ALERTED_DATE = 1; + // 警报日期列索引 + + @Override + public void onReceive(Context context, Intent intent) { + long currentDate = System.currentTimeMillis(); // 获取当前时间戳 + // 查询提醒日期大于当前时间的笔记 + Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI, + PROJECTION, + NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, + new String[] { String.valueOf(currentDate) }, + null); + + if (c != null) { + // 如果结果集不为空 + if (c.moveToFirst()) { + do { + long alertDate = c.getLong(COLUMN_ALERTED_DATE); + // 获取警报日期 + Intent sender = new Intent(context, AlarmReceiver.class); // 创建意图，用于发送警报 + // 设置数据为对应的笔记URI + sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID))); + // 创建PendingIntent，注册广播接收器 + PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0); + // 获取AlarmManager服务 + AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); + // 设置闹钟 + alarmManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent); + } while (c.moveToNext()); + // 遍历结果集 + } + c.close(); + // 关闭Cursor + } + } +} \ No newline at end of file diff --git a/AlarmReceiver.java b/AlarmReceiver.java new file mode 100644 index 0000000..76fb574 --- /dev/null +++ b/AlarmReceiver.java @@ -0,0 +1,36 @@ +/* + * 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.ui; +// 指定当前类所在的包名 + +import android.content.BroadcastReceiver; // 导入广播接收器基类 +import android.content.Context; // 导入上下文类 +import android.content.Intent; // 导入意图类 + +// 定义AlarmReceiver类，继承自BroadcastReceiver +public class AlarmReceiver extends BroadcastReceiver { + @Override + // 当接收到广播时调用的方法 + public void onReceive(Context context, Intent intent) { + // 设置要启动的活动为AlarmAlertActivity + intent.setClass(context, AlarmAlertActivity.class); + // 添加标志，使新的活动在新的任务中启动 + intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); + // 启动AlarmAlertActivity + context.startActivity(intent); + } +}