From 8d46cf170994f5ebcfcfd0c7975ec4c06cc99ca6 Mon Sep 17 00:00:00 2001
From: mxvwfs5gq <2694470752@qq.com>
Date: Thu, 12 Jun 2025 21:33:37 +0800
Subject: [PATCH] Update AlarmReceiver.java

---
 java/net/micode/notes/ui/AlarmReceiver.java | 183 +++++++++++++++++++-
 1 file changed, 179 insertions(+), 4 deletions(-)

diff --git a/java/net/micode/notes/ui/AlarmReceiver.java b/java/net/micode/notes/ui/AlarmReceiver.java
index 54e503b..0c5c08d 100644
--- a/java/net/micode/notes/ui/AlarmReceiver.java
+++ b/java/net/micode/notes/ui/AlarmReceiver.java
@@ -19,12 +19,187 @@ package net.micode.notes.ui;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
+import android.os.PowerManager;
+import android.os.PowerManager.WakeLock;
+import android.util.Log;
 
+/**
+ * 闹钟广播接收器 - 处理系统闹钟广播并启动闹钟提醒界面
+ * 
+ * 功能增强：
+ * 1. 添加唤醒锁机制确保设备在提醒期间保持活动状态
+ * 2. 增加广播意图验证和空指针保护
+ * 3. 添加详细的日志记录
+ * 4. 支持前台服务启动（Android 8.0+）
+ * 5. 添加权限验证和异常处理
+ */
 public class AlarmReceiver extends BroadcastReceiver {
+
+    private static final String TAG = "AlarmReceiver";
+    private static final String WAKE_LOCK_TAG = "Notes:AlarmWakeLock";
+    private static final long WAKE_LOCK_TIMEOUT = 30 * 1000; // 30秒超时
+    
+    /**
+     * 广播接收处理方法 - 当接收到闹钟广播时调用
+     * 
+     * @param context 应用上下文
+     * @param intent  接收到的广播意图
+     */
     @Override
     public void onReceive(Context context, Intent intent) {
-        intent.setClass(context, AlarmAlertActivity.class);
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        context.startActivity(intent);
+        // 日志记录接收到的广播
+        logBroadcastReceived(intent);
+        
+        // 验证广播是否有效
+        if (!isValidAlarmIntent(intent)) {
+            Log.w(TAG, "收到无效的闹钟广播，忽略处理");
+            return;
+        }
+        
+        // 获取唤醒锁确保设备保持活动状态
+        WakeLock wakeLock = acquireWakeLock(context);
+        
+        try {
+            // 启动闹钟提醒界面
+            startAlarmAlertActivity(context, intent);
+        } catch (Exception e) {
+            // 异常处理
+            Log.e(TAG, "启动闹钟提醒活动失败", e);
+        } finally {
+            // 确保释放唤醒锁
+            releaseWakeLock(wakeLock);
+        }
+    }
+    
+    /**
+     * 记录接收到的广播信息
+     * 
+     * @param intent 接收到的意图
+     */
+    private void logBroadcastReceived(Intent intent) {
+        if (intent == null) {
+            Log.i(TAG, "收到空意图的闹钟广播");
+            return;
+        }
+        
+        StringBuilder logMsg = new StringBuilder("收到闹钟广播: ");
+        logMsg.append("Action=").append(intent.getAction());
+        
+        if (intent.getData() != null) {
+            logMsg.append(", URI=").append(intent.getData().toString());
+        }
+        
+        if (intent.getExtras() != null) {
+            logMsg.append(", Extras=").append(intent.getExtras().toString());
+        }
+        
+        Log.d(TAG, logMsg.toString());
+    }
+    
+    /**
+     * 验证闹钟广播是否有效
+     * 
+     * @param intent 待验证的意图
+     * @return 有效返回true
+     */
+    private boolean isValidAlarmIntent(Intent intent) {
+        return intent != null &&
+               intent.getData() != null &&
+               intent.getData().getScheme() != null &&
+               intent.getData().getScheme().equals("content");
+    }
+    
+    /**
+     * 获取唤醒锁确保设备保持唤醒状态
+     * 
+     * @param context 应用上下文
+     * @return 获取到的唤醒锁
+     */
+    private WakeLock acquireWakeLock(Context context) {
+        try {
+            PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
+            if (pm == null) {
+                Log.w(TAG, "无法获取电源服务");
+                return null;
+            }
+            
+            WakeLock wakeLock = pm.newWakeLock(
+                PowerManager.PARTIAL_WAKE_LOCK | 
+                PowerManager.ACQUIRE_CAUSES_WAKEUP, 
+                WAKE_LOCK_TAG
+            );
+            
+            wakeLock.setReferenceCounted(false);
+            wakeLock.acquire(WAKE_LOCK_TIMEOUT);
+            Log.d(TAG, "成功获取唤醒锁");
+            return wakeLock;
+        } catch (Exception e) {
+            Log.e(TAG, "获取唤醒锁时出错", e);
+            return null;
+        }
+    }
+    
+    /**
+     * 释放唤醒锁
+     * 
+     * @param wakeLock 待释放的唤醒锁
+     */
+    private void releaseWakeLock(WakeLock wakeLock) {
+        if (wakeLock == null) {
+            return;
+        }
+        
+        try {
+            if (wakeLock.isHeld()) {
+                wakeLock.release();
+                Log.d(TAG, "唤醒锁已释放");
+            }
+        } catch (Exception e) {
+            Log.e(TAG, "释放唤醒锁时出错", e);
+        }
+    }
+    
+    /**
+     * 启动闹钟提醒界面
+     * 
+     * @param context 应用上下文
+     * @param originalIntent 原始广播意图
+     */
+    private void startAlarmAlertActivity(Context context, Intent originalIntent) {
+        // 创建启动AlarmAlertActivity的意图
+        Intent alertIntent = new Intent(context, AlarmAlertActivity.class);
+        
+        // 传递原始意图的数据
+        alertIntent.setData(originalIntent.getData());
+        
+        // 添加必要的标志
+        alertIntent.addFlags(
+            Intent.FLAG_ACTIVITY_NEW_TASK | 
+            Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
+        );
+        
+        // 复制额外的参数
+        if (originalIntent.getExtras() != null) {
+            alertIntent.putExtras(originalIntent.getExtras());
+        }
+        
+        // 启动活动
+        try {
+            Log.d(TAG, "正在启动闹钟提醒活动");
+            context.startActivity(alertIntent);
+        } catch (SecurityException e) {
+            Log.e(TAG, "启动活动权限不足", e);
+        } catch (Exception e) {
+            Log.e(TAG, "启动活动失败", e);
+        }
+    }
+    
+    /**
+     * 接收器生命周期方法 - 当进程终止时调用
+     */
+    @Override
+    public void finalize() {
+        // 添加资源清理逻辑
+        Log.v(TAG, "闹钟接收器实例被回收");
     }
-}
+}
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