From 38338e791594153134b659808e898395417eed57 Mon Sep 17 00:00:00 2001
From: pv283sfh9 <2798213622@qq.com>
Date: Thu, 12 Jun 2025 09:58:01 +0800
Subject: [PATCH] Update AlarmInitReceiver.java

---
 java/net/micode/notes/ui/AlarmInitReceiver.java | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/java/net/micode/notes/ui/AlarmInitReceiver.java b/java/net/micode/notes/ui/AlarmInitReceiver.java
index f221202..f1c1c37 100644
--- a/java/net/micode/notes/ui/AlarmInitReceiver.java
+++ b/java/net/micode/notes/ui/AlarmInitReceiver.java
@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package net.micode.notes.ui;
 
 import android.app.AlarmManager;
@@ -31,21 +30,25 @@ import net.micode.notes.data.Notes.NoteColumns;
 public class AlarmInitReceiver extends BroadcastReceiver {
 
     private static final String [] PROJECTION = new String [] {
-        NoteColumns.ID,
-        NoteColumns.ALERTED_DATE
+            NoteColumns.ID,
+            NoteColumns.ALERTED_DATE
     };
-
+    //对数据库的操作，调用标签ID和闹钟时间
     private static final int COLUMN_ID                = 0;
     private static final int COLUMN_ALERTED_DATE      = 1;
 
     @Override
     public void onReceive(Context context, Intent intent) {
         long currentDate = System.currentTimeMillis();
+        //System.currentTimeMillis()产生一个当前的毫秒
+        //这个毫秒其实就是自1970年1月1日0时起的毫秒数
         Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
                 PROJECTION,
                 NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,
                 new String[] { String.valueOf(currentDate) },
+                //将long变量currentDate转化为字符串
                 null);
+        //Cursor在这里的作用是通过查找数据库中的标签内容，找到和当前系统时间相等的标签
 
         if (c != null) {
             if (c.moveToFirst()) {
@@ -61,5 +64,8 @@ public class AlarmInitReceiver extends BroadcastReceiver {
             }
             c.close();
         }
+        //然而通过网上查找资料发现，对于闹钟机制的启动，通常需要上面的几个步骤
+        //如新建Intent、PendingIntent以及AlarmManager等
+        //这里就是根据数据库里的闹钟时间创建一个闹钟机制
     }
-}
+}
\ No newline at end of file