From 23a382ad103438756856f380387fcf6b3b6658ae Mon Sep 17 00:00:00 2001
From: MRD <1259303886@qq.com>
Date: Fri, 13 Jun 2025 17:33:20 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E4=BB=A3=E7=A0=81=E6=B3=A8?=
 =?UTF-8?q?=E9=87=8A?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../micode/notes/ui/AlarmInitReceiver.java    | 36 ++++++++++++++++---
 1 file changed, 31 insertions(+), 5 deletions(-)

diff --git a/src/Notes-master/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java b/src/Notes-master/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java
index f221202..0e728b8 100644
--- a/src/Notes-master/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java
+++ b/src/Notes-master/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java
@@ -27,38 +27,64 @@ import android.database.Cursor;
 import net.micode.notes.data.Notes;
 import net.micode.notes.data.Notes.NoteColumns;
 
-
+/**
+ * 闹钟初始化接收器 - 负责重新设置所有待处理的笔记提醒
+ * 当系统启动完成或时区变化时，该接收器会被触发，重新设置所有未来的笔记提醒
+ */
 public class AlarmInitReceiver extends BroadcastReceiver {
 
+    // 查询投影 - 定义需要从数据库中获取的列
     private static final String [] PROJECTION = new String [] {
-        NoteColumns.ID,
-        NoteColumns.ALERTED_DATE
+        NoteColumns.ID,          // 笔记ID
+        NoteColumns.ALERTED_DATE // 提醒日期
     };
 
+    // 列索引常量，用于从Cursor中获取数据
     private static final int COLUMN_ID                = 0;
     private static final int COLUMN_ALERTED_DATE      = 1;
 
+    /**
+     * 接收广播时调用
+     * 重新设置所有未来的笔记提醒
+     */
     @Override
     public void onReceive(Context context, Intent intent) {
+        // 获取当前时间戳
         long currentDate = System.currentTimeMillis();
+        
+        // 查询数据库中所有未来的提醒（提醒时间大于当前时间且类型为笔记的记录）
         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);
 
+        // 处理查询结果
         if (c != null) {
             if (c.moveToFirst()) {
+                // 遍历所有未来提醒
                 do {
+                    // 获取提醒时间
                     long alertDate = c.getLong(COLUMN_ALERTED_DATE);
+                    
+                    // 创建用于触发提醒的Intent
                     Intent sender = new Intent(context, AlarmReceiver.class);
+                    // 设置Intent的数据URI，包含笔记ID
                     sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID)));
+                    
+                    // 创建用于延迟执行的PendingIntent
                     PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0);
-                    AlarmManager alermManager = (AlarmManager) context
+                    
+                    // 获取AlarmManager系统服务
+                    AlarmManager alarmManager = (AlarmManager) context
                             .getSystemService(Context.ALARM_SERVICE);
-                    alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);
+                    
+                    // 设置闹钟，在指定时间触发PendingIntent
+                    alarmManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);
+                    
                 } while (c.moveToNext());
             }
+            // 关闭Cursor，释放资源
             c.close();
         }
     }