{"id":84453,"date":"2026-07-26T13:09:22","date_gmt":"2026-07-26T05:09:22","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/84453.html"},"modified":"2026-07-26T13:09:22","modified_gmt":"2026-07-26T05:09:22","slug":"android-%e5%9b%9b%e5%a4%a7%e7%bb%84%e4%bb%b6%e5%9f%ba%e7%a1%80%ef%bc%88activity-service-broadcastreceiver-contentprovider%ef%bc%89%e5%b7%a5%e6%8e%a7%e5%9c%ba%e6%99%af%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/84453.html","title":{"rendered":"Android \u56db\u5927\u7ec4\u4ef6\u57fa\u7840\uff08Activity\/Service\/BroadcastReceiver\/ContentProvider\uff09\u5de5\u63a7\u573a\u666f\u7528\u6cd5"},"content":{"rendered":"

Android \u56db\u5927\u7ec4\u4ef6\u57fa\u7840（Activity\/Service\/BroadcastReceiver\/ContentProvider）\u5de5\u63a7\u573a\u666f\u7528\u6cd5<\/h2>\n

\u56db\u5927\u7ec4\u4ef6\u662f\u5b89\u5353\u5e94\u7528\u5f00\u53d1\u7684\u5730\u57fa\u3002\u624b\u673a\u5f00\u53d1\u53ef\u80fd\u53ea\u7528 Activity \u5c31\u591f\u4e86，\u4f46\u5de5\u63a7\u573a\u666f\u4e0b\u56db\u4e2a\u7ec4\u4ef6\u5404\u53f8\u5176\u804c，\u7f3a\u4e00\u4e0d\u53ef\u3002\u4eca\u5929\u54b1\u4eec\u628a\u6bcf\u4e2a\u7ec4\u4ef6\u5728\u5de5\u63a7\u4e2d\u7684\u89d2\u8272\u548c\u5b9e\u6218\u4ee3\u7801\u90fd\u634b\u6e05\u695a\u3002<\/p>\n

\u4e00\u3001\u56db\u5927\u7ec4\u4ef6\u6982\u8ff0\u4e0e\u5de5\u63a7\u4e2d\u7684\u89d2\u8272<\/h3>\n

Android \u5e94\u7528\u7531\u56db\u79cd\u6838\u5fc3\u7ec4\u4ef6\u6784\u6210，\u5b83\u4eec\u5404\u53f8\u5176\u804c：<\/p>\n\n\u7ec4\u4ef6\u5b98\u65b9\u5b9a\u4e49\u5de5\u63a7\u4e2d\u7684\u89d2\u8272<\/tr>\n\n\n\n\n\n
Activity<\/td>\n\u63d0\u4f9b\u7528\u6237\u754c\u9762\u7684\u7ec4\u4ef6<\/td>\n\u6570\u636e\u76d1\u63a7\u5927\u5c4f\u3001\u53c2\u6570\u914d\u7f6e\u9875\u9762<\/td>\n<\/tr>\n
Service<\/td>\n\u540e\u53f0\u8fd0\u884c\u7684\u65e0\u754c\u9762\u7ec4\u4ef6<\/td>\n\u4e32\u53e3\u6570\u636e\u91c7\u96c6\u3001Modbus \u8f6e\u8be2\u3001\u770b\u95e8\u72d7\u5b88\u62a4<\/td>\n<\/tr>\n
BroadcastReceiver<\/td>\n\u63a5\u6536\u7cfb\u7edf\u6216\u5e94\u7528\u5e7f\u64ad<\/td>\n\u5f00\u673a\u81ea\u542f\u3001\u7f51\u7edc\u72b6\u6001\u76d1\u542c\u3001\u5916\u8bbe\u70ed\u63d2\u62d4\u68c0\u6d4b<\/td>\n<\/tr>\n
ContentProvider<\/td>\n\u8de8\u5e94\u7528\u6570\u636e\u5171\u4eab<\/td>\n\u591a APP \u5171\u4eab\u4f20\u611f\u5668\u6570\u636e\u3001\u8bbe\u5907\u914d\u7f6e\u4fe1\u606f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5728\u5de5\u63a7\u573a\u666f\u4e2d，\u56db\u5927\u7ec4\u4ef6\u7684\u4f7f\u7528\u4f18\u5148\u7ea7\u548c\u624b\u673a\u5f00\u53d1\u5b8c\u5168\u4e0d\u540c：\u624b\u673a\u5f00\u53d1 Activity \u5360 80%，\u800c\u5de5\u63a7\u5f00\u53d1\u4e2d Service \u624d\u662f\u6838\u5fc3\u2014\u2014\u4f60\u5199\u7684 APP \u5f88\u591a\u65f6\u5019\u6839\u672c\u4e0d\u9700\u8981\u754c\u9762\u3002<\/p>\n

\u4e8c\u3001Activity：\u5de5\u63a7\u754c\u9762\u7684\u627f\u8f7d\u8005<\/h3>\n

2.1 \u5de5\u63a7 Activity \u7684\u7279\u70b9<\/h4>\n

\u5de5\u63a7\u8bbe\u5907\u7684 Activity \u548c\u624b\u673a APP \u7684 Activity \u6709\u672c\u8d28\u533a\u522b：<\/p>\n

    \n
  • \u5168\u5c4f\u65e0\u6807\u9898\u680f：\u5de5\u63a7 APP \u4e0d\u9700\u8981 ActionBar，\u4e0d\u9700\u8981\u5bfc\u822a\u680f，\u4e0d\u9700\u8981\u82b1\u91cc\u80e1\u54e8\u7684\u52a8\u753b<\/li>\n
  • \u56fa\u5b9a\u6a2a\u5c4f\/\u7ad6\u5c4f：\u8bbe\u5907\u662f\u6a2a\u88c5\u8fd8\u662f\u7ad6\u88c5\u710a\u6b7b\u5728\u673a\u67dc\u91cc，\u4e0d\u5141\u8bb8\u65cb\u8f6c<\/li>\n
  • \u65e0\u8fd4\u56de\u952e\u4f9d\u8d56：\u7528\u6237\u53ef\u80fd\u6839\u672c\u6ca1\u6709\u8fd4\u56de\u952e，\u6240\u6709\u5bfc\u822a\u5fc5\u987b\u5728\u754c\u9762\u5185\u5b8c\u6210<\/li>\n
  • \u9632\u9000\u51fa：\u6309\u8fd4\u56de\u952e\u4e0d\u80fd\u9000\u51fa APP，\u5fc5\u987b\u901a\u8fc7\u7279\u5b9a\u6d41\u7a0b（\u957f\u6309\u3001\u5bc6\u7801）\u9000\u51fa<\/li>\n<\/ul>\n

    2.2 \u5de5\u63a7 Activity \u914d\u7f6e\u6a21\u677f<\/h4>\n

    \u5728 AndroidManifest.xml \u4e2d：<\/p>\n

    <<\/span>activity<\/span>
    \n android:<\/span>name<\/span>=<\/span>"<\/span>.MainActivity"<\/span><\/span>
    \n android:<\/span>screenOrientation<\/span>=<\/span>"<\/span>landscape"<\/span><\/span>
    \n android:<\/span>theme<\/span>=<\/span>"<\/span>@style\/Theme.AppCompat.NoActionBar"<\/span><\/span>
    \n android:<\/span>configChanges<\/span>=<\/span>"<\/span>screenSize|orientation|keyboardHidden"<\/span><\/span>><\/span><\/span>
    \n <<\/span>intent-filter<\/span>><\/span><\/span>
    \n <<\/span>action<\/span> android:<\/span>name<\/span>=<\/span>"<\/span>android.intent.action.MAIN"<\/span><\/span> \/><\/span><\/span>
    \n <<\/span>category<\/span> android:<\/span>name<\/span>=<\/span>"<\/span>android.intent.category.HOME"<\/span><\/span> \/><\/span><\/span>
    \n <<\/span>category<\/span> android:<\/span>name<\/span>=<\/span>"<\/span>android.intent.category.DEFAULT"<\/span><\/span> \/><\/span><\/span>
    \n <\/<\/span>intent-filter<\/span>><\/span><\/span>
    \n<\/<\/span>activity<\/span>><\/span><\/span><\/p>\n

    \u5173\u952e\u914d\u7f6e\u8bf4\u660e：<\/p>\n

      \n
    • screenOrientation="landscape"：\u9501\u5b9a\u6a2a\u5c4f，\u8bbe\u5907\u8f6c\u4e0d\u4e86<\/li>\n
    • HOME category：\u628a APP \u8bbe\u4e3a\u684c\u9762，\u5f00\u673a\u76f4\u63a5\u8fdb\u4f60\u7684\u5e94\u7528<\/li>\n
    • configChanges：\u81ea\u5df1\u5904\u7406\u914d\u7f6e\u53d8\u5316，\u4e0d\u8ba9\u7cfb\u7edf\u91cd\u5efa Activity<\/li>\n<\/ul>\n

      2.3 \u9632\u9000\u51fa\u5904\u7406<\/h4>\n

      @Override<\/span>
      \npublic<\/span> void<\/span> onBackPressed<\/span>(<\/span>)<\/span> {<\/span>
      \n \/\/ \u5de5\u63a7 APP \u7981\u7528\u8fd4\u56de\u952e\u9000\u51fa<\/span>
      \n \/\/ \u53ef\u4ee5\u662f\u7a7a\u5b9e\u73b0，\u4e5f\u53ef\u4ee5\u505a\u7279\u5b9a\u903b\u8f91<\/span>
      \n showExitConfirmDialog<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u5f39\u51fa\u81ea\u5b9a\u4e49\u9000\u51fa\u786e\u8ba4<\/span>
      \n}<\/span><\/p>\n

      @Override<\/span>
      \npublic<\/span> void<\/span> onWindowFocusChanged<\/span>(<\/span>boolean<\/span> hasFocus)<\/span> {<\/span>
      \n super<\/span>.<\/span>onWindowFocusChanged<\/span>(<\/span>hasFocus)<\/span>;<\/span>
      \n if<\/span> (<\/span>hasFocus)<\/span> {<\/span>
      \n hideSystemUI<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u9690\u85cf\u865a\u62df\u6309\u952e\u548c\u72b6\u6001\u680f<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      private<\/span> void<\/span> hideSystemUI<\/span>(<\/span>)<\/span> {<\/span>
      \n View<\/span> decorView =<\/span> getWindow<\/span>(<\/span>)<\/span>.<\/span>getDecorView<\/span>(<\/span>)<\/span>;<\/span>
      \n decorView.<\/span>setSystemUiVisibility<\/span>(<\/span>
      \n View<\/span>.<\/span>SYSTEM_UI_FLAG_IMMERSIVE_STICKY<\/span>
      \n |<\/span> View<\/span>.<\/span>SYSTEM_UI_FLAG_FULLSCREEN<\/span>
      \n |<\/span> View<\/span>.<\/span>SYSTEM_UI_FLAG_HIDE_NAVIGATION<\/span>
      \n |<\/span> View<\/span>.<\/span>SYSTEM_UI_FLAG_LAYOUT_STABLE<\/span>
      \n |<\/span> View<\/span>.<\/span>SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION<\/span>
      \n |<\/span> View<\/span>.<\/span>SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN<\/span>
      \n )<\/span>;<\/span>
      \n}<\/span><\/p>\n

      \u8fd9\u6bb5\u4ee3\u7801\u628a\u4f60\u7684 Activity \u53d8\u6210\u771f\u6b63\u7684"\u5168\u5c4f\u65e0\u5e72\u6270"\u6a21\u5f0f\u2014\u2014\u4e0b\u62c9\u901a\u77e5\u680f\u90fd\u62c9\u4e0d\u51fa\u6765\u3002<\/p>\n

      \u4e09\u3001Service：\u5de5\u63a7 APP \u7684\u7075\u9b42<\/h3>\n

      3.1 \u4e3a\u4ec0\u4e48 Service \u662f\u6838\u5fc3？<\/h4>\n

      \u5de5\u63a7\u8bbe\u5907\u7684\u5927\u90e8\u5206\u5de5\u4f5c\u8ddf\u754c\u9762\u65e0\u5173\u2014\u2014\u4e32\u53e3\u4e00\u76f4\u5728\u6536\u4f20\u611f\u5668\u6570\u636e，Modbus \u534f\u8bae\u6bcf 100ms \u8f6e\u8be2\u4e00\u6b21 PLC，CAN \u603b\u7ebf\u4e0a\u8f66\u8f86\u6570\u636e\u4e0d\u65ad\u6d8c\u6765\u3002\u8fd9\u4e9b\u64cd\u4f5c\u5fc5\u987b\u8131\u79bb Activity \u7684\u751f\u547d\u5468\u671f，\u5426\u5219\u7528\u6237\u4e00\u5207\u6362\u754c\u9762\u6570\u636e\u5c31\u65ad\u4e86\u3002<\/p>\n

      3.2 \u524d\u53f0 Service：\u4e0d\u88ab\u7cfb\u7edf\u6740\u6b7b\u7684\u540e\u53f0\u4efb\u52a1<\/h4>\n

      \u4ece Android 8.0 \u5f00\u59cb，\u540e\u53f0 Service \u4f1a\u88ab\u7cfb\u7edf\u9650\u5236\u751a\u81f3\u6740\u6b7b\u3002\u5de5\u63a7 APP \u5fc5\u987b\u7528\u524d\u53f0 Service，\u5e26\u4e00\u4e2a\u5e38\u9a7b\u901a\u77e5：<\/p>\n

      public<\/span> class<\/span> SerialService<\/span> extends<\/span> Service<\/span> {<\/span><\/p>\n

      private<\/span> static<\/span> final<\/span> int<\/span> NOTIFICATION_ID<\/span> =<\/span> 1<\/span>;<\/span>
      \n private<\/span> static<\/span> final<\/span> String<\/span> CHANNEL_ID<\/span> =<\/span> "serial_channel"<\/span>;<\/span><\/p>\n

      @Override<\/span>
      \n public<\/span> void<\/span> onCreate<\/span>(<\/span>)<\/span> {<\/span>
      \n super<\/span>.<\/span>onCreate<\/span>(<\/span>)<\/span>;<\/span>
      \n createNotificationChannel<\/span>(<\/span>)<\/span>;<\/span>
      \n startForeground<\/span>(<\/span>NOTIFICATION_ID<\/span>,<\/span> buildNotification<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
      \n \/\/ \u521d\u59cb\u5316\u4e32\u53e3，\u5f00\u59cb\u6570\u636e\u91c7\u96c6<\/span>
      \n initSerialPort<\/span>(<\/span>)<\/span>;<\/span>
      \n }<\/span><\/p>\n

      @Override<\/span>
      \n public<\/span> int<\/span> onStartCommand<\/span>(<\/span>Intent<\/span> intent,<\/span> int<\/span> flags,<\/span> int<\/span> startId)<\/span> {<\/span>
      \n \/\/ \u8fd4\u56de START_STICKY：\u88ab\u7cfb\u7edf\u6740\u6b7b\u540e\u81ea\u52a8\u91cd\u542f<\/span>
      \n return<\/span> START_STICKY<\/span>;<\/span>
      \n }<\/span><\/p>\n

      private<\/span> void<\/span> createNotificationChannel<\/span>(<\/span>)<\/span> {<\/span>
      \n NotificationChannel<\/span> channel =<\/span> new<\/span> NotificationChannel<\/span>(<\/span>
      \n CHANNEL_ID<\/span>,<\/span> "\u4e32\u53e3\u670d\u52a1"<\/span>,<\/span> NotificationManager<\/span>.<\/span>IMPORTANCE_LOW<\/span>)<\/span>;<\/span>
      \n channel.<\/span>setDescription<\/span>(<\/span>"\u5de5\u63a7\u4e32\u53e3\u6570\u636e\u91c7\u96c6\u670d\u52a1"<\/span>)<\/span>;<\/span>
      \n NotificationManager<\/span> manager =<\/span> getSystemService<\/span>(<\/span>NotificationManager<\/span>.<\/span>class<\/span>)<\/span>;<\/span>
      \n manager.<\/span>createNotificationChannel<\/span>(<\/span>channel)<\/span>;<\/span>
      \n }<\/span><\/p>\n

      private<\/span> Notification<\/span> buildNotification<\/span>(<\/span>)<\/span> {<\/span>
      \n return<\/span> new<\/span> NotificationCompat.<\/span>Builder<\/span>(<\/span>this<\/span>,<\/span> CHANNEL_ID<\/span>)<\/span>
      \n .<\/span>setContentTitle<\/span>(<\/span>"\u6570\u636e\u91c7\u96c6\u8fd0\u884c\u4e2d"<\/span>)<\/span>
      \n .<\/span>setContentText<\/span>(<\/span>"\u4e32\u53e3\u670d\u52a1\u6b63\u5728\u8fd0\u884c"<\/span>)<\/span>
      \n .<\/span>setSmallIcon<\/span>(<\/span>R<\/span>.<\/span>drawable.<\/span>ic_serial)<\/span>
      \n .<\/span>setOngoing<\/span>(<\/span>true<\/span>)<\/span> \/\/ \u7528\u6237\u65e0\u6cd5\u6ed1\u52a8\u5220\u9664<\/span>
      \n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
      \n }<\/span><\/p>\n

      @Nullable<\/span>
      \n @Override<\/span>
      \n public<\/span> IBinder<\/span> onBind<\/span>(<\/span>Intent<\/span> intent)<\/span> {<\/span>
      \n return<\/span> null<\/span>;<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      \u5728 AndroidManifest.xml \u4e2d\u58f0\u660e：<\/p>\n

      <<\/span>uses-permission<\/span> android:<\/span>name<\/span>=<\/span>"<\/span>android.permission.FOREGROUND_SERVICE"<\/span><\/span> \/><\/span><\/span>
      \n<<\/span>service<\/span>
      \n android:<\/span>name<\/span>=<\/span>"<\/span>.SerialService"<\/span><\/span>
      \n android:<\/span>enabled<\/span>=<\/span>"<\/span>true"<\/span><\/span>
      \n android:<\/span>exported<\/span>=<\/span>"<\/span>false"<\/span><\/span>
      \n android:<\/span>foregroundServiceType<\/span>=<\/span>"<\/span>dataSync"<\/span><\/span> \/><\/span><\/span><\/p>\n

      3.3 Service \u7684\u542f\u52a8\u65b9\u5f0f<\/h4>\n

      \/\/ \u65b9\u5f0f\u4e00：startService，Service \u72ec\u7acb\u8fd0\u884c，\u4e0d\u4f9d\u8d56\u8c03\u7528\u8005<\/span>
      \nIntent<\/span> intent =<\/span> new<\/span> Intent<\/span>(<\/span>this<\/span>,<\/span> SerialService<\/span>.<\/span>class<\/span>)<\/span>;<\/span>
      \nstartService<\/span>(<\/span>intent)<\/span>;<\/span><\/p>\n

      \/\/ \u65b9\u5f0f\u4e8c：bindService，\u8c03\u7528\u8005\u548c Service \u7ed1\u5b9a，\u53ef\u4ee5\u4e92\u76f8\u901a\u4fe1<\/span>
      \nIntent<\/span> intent =<\/span> new<\/span> Intent<\/span>(<\/span>this<\/span>,<\/span> SerialService<\/span>.<\/span>class<\/span>)<\/span>;<\/span>
      \nbindService<\/span>(<\/span>intent,<\/span> serviceConnection,<\/span> Context<\/span>.<\/span>BIND_AUTO_CREATE<\/span>)<\/span>;<\/span><\/p>\n

      \u5de5\u63a7\u573a\u666f\u5927\u591a\u7528 startService，\u8ba9 Service \u72ec\u7acb\u4e8e Activity \u8fd0\u884c\u3002<\/p>\n

      3.4 \u5de5\u63a7 Service \u5178\u578b\u7528\u9014<\/h4>\n\n\u7528\u9014\u5b9e\u73b0\u65b9\u5f0f<\/tr>\n\n\n\n\n\n\n
      \u4e32\u53e3\u6570\u636e\u91c7\u96c6<\/td>\nService \u4e2d\u5f00\u7ebf\u7a0b\u5faa\u73af\u8bfb\u53d6 \/dev\/ttyS*<\/td>\n<\/tr>\n
      Modbus TCP \u8f6e\u8be2<\/td>\nService \u4e2d\u5b9a\u65f6\u4efb\u52a1\u8bfb\u5199 PLC \u5bc4\u5b58\u5668<\/td>\n<\/tr>\n
      MQTT \u8fde\u63a5\u4fdd\u6d3b<\/td>\nService \u7ef4\u6301\u957f\u8fde\u63a5，\u65ad\u7ebf\u81ea\u52a8\u91cd\u8fde<\/td>\n<\/tr>\n
      \u770b\u95e8\u72d7\u5582\u72d7<\/td>\nService \u5b9a\u65f6\u5199 \/dev\/watchdog \u6216 GPIO<\/td>\n<\/tr>\n
      GPS\/RTK \u5b9a\u4f4d<\/td>\nService \u6301\u7eed\u89e3\u6790 NMEA \u6570\u636e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u56db\u3001BroadcastReceiver：\u7cfb\u7edf\u7684\u8033\u6735<\/h3>\n

      BroadcastReceiver \u662f Android \u7684\u4e8b\u4ef6\u76d1\u542c\u673a\u5236\u3002\u5de5\u63a7\u573a\u666f\u4e2d，\u5b83\u4e3b\u8981\u7528\u4e8e"\u611f\u77e5\u73af\u5883\u53d8\u5316"\u3002<\/p>\n

      4.1 \u5f00\u673a\u81ea\u542f\u5e7f\u64ad<\/h4>\n

      \u8fd9\u662f\u5de5\u63a7 APP \u6700\u5e38\u7528\u7684\u5e7f\u64ad\u2014\u2014\u8bbe\u5907\u901a\u7535\u540e\u81ea\u52a8\u62c9\u8d77\u4f60\u7684\u670d\u52a1：<\/p>\n

      public<\/span> class<\/span> BootReceiver<\/span> extends<\/span> BroadcastReceiver<\/span> {<\/span>
      \n @Override<\/span>
      \n public<\/span> void<\/span> onReceive<\/span>(<\/span>Context<\/span> context,<\/span> Intent<\/span> intent)<\/span> {<\/span>
      \n if<\/span> (<\/span>Intent<\/span>.<\/span>ACTION_BOOT_COMPLETED<\/span>.<\/span>equals<\/span>(<\/span>intent.<\/span>getAction<\/span>(<\/span>)<\/span>)<\/span>)<\/span> {<\/span>
      \n \/\/ \u542f\u52a8\u4e32\u53e3\u91c7\u96c6\u670d\u52a1<\/span>
      \n Intent<\/span> serviceIntent =<\/span> new<\/span> Intent<\/span>(<\/span>context,<\/span> SerialService<\/span>.<\/span>class<\/span>)<\/span>;<\/span>
      \n context.<\/span>startService<\/span>(<\/span>serviceIntent)<\/span>;<\/span><\/p>\n

      \/\/ \u542f\u52a8\u4e3b\u754c\u9762<\/span>
      \n Intent<\/span> activityIntent =<\/span> new<\/span> Intent<\/span>(<\/span>context,<\/span> MainActivity<\/span>.<\/span>class<\/span>)<\/span>;<\/span>
      \n activityIntent.<\/span>addFlags<\/span>(<\/span>Intent<\/span>.<\/span>FLAG_ACTIVITY_NEW_TASK<\/span>)<\/span>;<\/span>
      \n context.<\/span>startActivity<\/span>(<\/span>activityIntent)<\/span>;<\/span>
      \n }<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      \u5728 Manifest \u4e2d\u58f0\u660e：<\/p>\n

      <<\/span>uses-permission<\/span> android:<\/span>name<\/span>=<\/span>"<\/span>android.permission.RECEIVE_BOOT_COMPLETED"<\/span><\/span> \/><\/span><\/span>
      \n<<\/span>receiver<\/span>
      \n android:<\/span>name<\/span>=<\/span>"<\/span>.BootReceiver"<\/span><\/span>
      \n android:<\/span>exported<\/span>=<\/span>"<\/span>true"<\/span><\/span>><\/span><\/span>
      \n <<\/span>intent-filter<\/span>><\/span><\/span>
      \n <<\/span>action<\/span> android:<\/span>name<\/span>=<\/span>"<\/span>android.intent.action.BOOT_COMPLETED"<\/span><\/span> \/><\/span><\/span>
      \n <\/<\/span>intent-filter<\/span>><\/span><\/span>
      \n<\/<\/span>receiver<\/span>><\/span><\/span><\/p>\n

      4.2 \u5176\u4ed6\u5de5\u63a7\u5e38\u7528\u5e7f\u64ad<\/h4>\n\n\u5e7f\u64ad Action\u89e6\u53d1\u65f6\u673a\u5de5\u63a7\u7528\u9014<\/tr>\n\n\n\n\n\n\n
      BOOT_COMPLETED<\/td>\n\u7cfb\u7edf\u542f\u52a8\u5b8c\u6210<\/td>\n\u81ea\u542f Service \u548c Activity<\/td>\n<\/tr>\n
      CONNECTIVITY_CHANGE<\/td>\n\u7f51\u7edc\u72b6\u6001\u53d8\u5316<\/td>\n\u7f51\u7edc\u65ad\u4e86\u544a\u8b66\u3001\u5207\u6362\u5907\u7528\u7f51\u7edc<\/td>\n<\/tr>\n
      BATTERY_LOW<\/td>\n\u7535\u91cf\u8fc7\u4f4e<\/td>\nUPS \u4f9b\u7535\u544a\u8b66<\/td>\n<\/tr>\n
      TIME_TICK<\/td>\n\u6bcf\u5206\u949f\u89e6\u53d1<\/td>\n\u5b9a\u65f6\u4efb\u52a1（\u4e0d\u7cbe\u786e\u4f46\u7701\u7535）<\/td>\n<\/tr>\n
      PACKAGE_ADDED<\/td>\n\u65b0 APP \u5b89\u88c5<\/td>\n\u5b89\u5168\u68c0\u6d4b\u3001\u81ea\u52a8\u914d\u7f6e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      4.3 \u52a8\u6001\u6ce8\u518c vs \u9759\u6001\u6ce8\u518c<\/h4>\n

      \/\/ \u52a8\u6001\u6ce8\u518c（\u4ee3\u7801\u4e2d\u6ce8\u518c，\u66f4\u7075\u6d3b）<\/span>
      \nIntentFilter<\/span> filter =<\/span> new<\/span> IntentFilter<\/span>(<\/span>)<\/span>;<\/span>
      \nfilter.<\/span>addAction<\/span>(<\/span>ConnectivityManager<\/span>.<\/span>CONNECTIVITY_ACTION<\/span>)<\/span>;<\/span>
      \nregisterReceiver<\/span>(<\/span>networkReceiver,<\/span> filter)<\/span>;<\/span><\/p>\n

      \/\/ \u8bb0\u5f97\u5728 onDestroy \u4e2d\u53cd\u6ce8\u518c<\/span>
      \nunregisterReceiver<\/span>(<\/span>networkReceiver)<\/span>;<\/span><\/p>\n

      \u5de5\u63a7\u8bbe\u5907\u4e00\u822c\u7528\u9759\u6001\u6ce8\u518c（\u5728 Manifest \u4e2d\u58f0\u660e），\u56e0\u4e3a\u52a8\u6001\u6ce8\u518c\u4f9d\u8d56\u7ec4\u4ef6\u751f\u547d\u5468\u671f，\u8bbe\u5907\u91cd\u542f\u540e\u4e0d\u4e00\u5b9a\u8fd8\u5728\u3002<\/p>\n

      \u4e94\u3001ContentProvider：\u5de5\u63a7\u591a APP \u6570\u636e\u5171\u4eab<\/h3>\n

      ContentProvider \u5728\u65e5\u5e38\u624b\u673a\u5f00\u53d1\u4e2d\u5f88\u5c11\u7528\u2014\u2014\u9664\u4e86\u8bfb\u7cfb\u7edf\u901a\u8baf\u5f55\u3002\u4f46\u5728\u5de5\u63a7\u573a\u666f\u4e2d，\u5b83\u662f\u4e00\u4e2a\u88ab\u4f4e\u4f30\u7684\u5bb6\u4f19\u3002<\/p>\n

      5.1 \u5de5\u63a7\u573a\u666f\u7684\u5178\u578b\u9700\u6c42<\/h4>\n

      \u5047\u8bbe\u4f60\u7684\u5de5\u63a7\u8bbe\u5907\u4e0a\u8dd1\u4e86\u4e09\u4e2a APP：<\/p>\n

        \n
      • \u6570\u636e\u91c7\u96c6 APP：\u8d1f\u8d23\u8bfb\u5199\u4e32\u53e3\u3001\u91c7\u96c6\u4f20\u611f\u5668\u6570\u636e<\/li>\n
      • \u672c\u5730\u76d1\u63a7 APP：\u8d1f\u8d23\u663e\u793a\u5b9e\u65f6\u6570\u636e\u548c\u62a5\u8b66<\/li>\n
      • \u8fdc\u7a0b\u4e0a\u62a5 APP：\u8d1f\u8d23\u628a\u6570\u636e\u4e0a\u4f20\u5230\u4e91\u5e73\u53f0<\/li>\n<\/ul>\n

        \u8fd9\u4e09\u4e2a APP \u9700\u8981\u5171\u4eab\u6570\u636e（\u4f20\u611f\u5668\u6570\u503c\u3001\u8bbe\u5907\u72b6\u6001\u3001\u62a5\u8b66\u8bb0\u5f55）\u3002\u7528\u6587\u4ef6\u4e92\u4f20？\u592a\u539f\u59cb\u3002\u7528 SQLite \u6570\u636e\u5e93\u4e92\u76f8\u8bbf\u95ee？Android 11+ \u5df2\u7ecf\u9501\u6b7b\u4e86 \/data\/data\/ \u7684\u8de8\u5e94\u7528\u8bbf\u95ee\u3002\u8fd9\u65f6\u5019 ContentProvider \u5c31\u662f\u6b63\u9053\u3002<\/p>\n

        5.2 \u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u6570\u636e\u5171\u4eab ContentProvider<\/h4>\n

        \u6570\u636e\u91c7\u96c6 APP \u4f5c\u4e3a\u6570\u636e\u63d0\u4f9b\u65b9：<\/p>\n

        public<\/span> class<\/span> SensorProvider<\/span> extends<\/span> ContentProvider<\/span> {<\/span><\/p>\n

        public<\/span> static<\/span> final<\/span> String<\/span> AUTHORITY<\/span> =<\/span> "com.example.collector.provider"<\/span>;<\/span>
        \n public<\/span> static<\/span> final<\/span> Uri<\/span> CONTENT_URI<\/span> =<\/span> Uri<\/span>.<\/span>parse<\/span>(<\/span>"content:\/\/"<\/span> +<\/span> AUTHORITY<\/span> +<\/span> "\/sensors"<\/span>)<\/span>;<\/span><\/p>\n

        @Override<\/span>
        \n public<\/span> boolean<\/span> onCreate<\/span>(<\/span>)<\/span> {<\/span>
        \n \/\/ \u521d\u59cb\u5316\u6570\u636e\u5e93<\/span>
        \n dbHelper =<\/span> new<\/span> SensorDbHelper<\/span>(<\/span>getContext<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
        \n return<\/span> true<\/span>;<\/span>
        \n }<\/span><\/p>\n

        @Override<\/span>
        \n public<\/span> Cursor<\/span> query<\/span>(<\/span>Uri<\/span> uri,<\/span> String<\/span>[<\/span>]<\/span> projection,<\/span> String<\/span> selection,<\/span>
        \n String<\/span>[<\/span>]<\/span> selectionArgs,<\/span> String<\/span> sortOrder)<\/span> {<\/span>
        \n SQLiteDatabase<\/span> db =<\/span> dbHelper.<\/span>getReadableDatabase<\/span>(<\/span>)<\/span>;<\/span>
        \n return<\/span> db.<\/span>query<\/span>(<\/span>"sensor_data"<\/span>,<\/span> projection,<\/span> selection,<\/span>
        \n selectionArgs,<\/span> null<\/span>,<\/span> null<\/span>,<\/span> sortOrder)<\/span>;<\/span>
        \n }<\/span><\/p>\n

        @Override<\/span>
        \n public<\/span> Uri<\/span> insert<\/span>(<\/span>Uri<\/span> uri,<\/span> ContentValues<\/span> values)<\/span> {<\/span>
        \n SQLiteDatabase<\/span> db =<\/span> dbHelper.<\/span>getWritableDatabase<\/span>(<\/span>)<\/span>;<\/span>
        \n long<\/span> id =<\/span> db.<\/span>insert<\/span>(<\/span>"sensor_data"<\/span>,<\/span> null<\/span>,<\/span> values)<\/span>;<\/span>
        \n getContext<\/span>(<\/span>)<\/span>.<\/span>getContentResolver<\/span>(<\/span>)<\/span>.<\/span>notifyChange<\/span>(<\/span>uri,<\/span> null<\/span>)<\/span>;<\/span>
        \n return<\/span> ContentUris<\/span>.<\/span>withAppendedId<\/span>(<\/span>uri,<\/span> id)<\/span>;<\/span>
        \n }<\/span><\/p>\n

        @Override<\/span>
        \n public<\/span> String<\/span> getType<\/span>(<\/span>Uri<\/span> uri)<\/span> {<\/span>
        \n return<\/span> "vnd.android.cursor.dir\/vnd.example.sensors"<\/span>;<\/span>
        \n }<\/span><\/p>\n

        \/\/ \u5de5\u63a7\u573a\u666f\u4e00\u822c\u4e0d\u63d0\u4f9b\u5220\u9664\u548c\u66f4\u65b0\u63a5\u53e3<\/span>
        \n @Override<\/span>
        \n public<\/span> int<\/span> delete<\/span>(<\/span>Uri<\/span> uri,<\/span> String<\/span> selection,<\/span> String<\/span>[<\/span>]<\/span> selectionArgs)<\/span> {<\/span>
        \n return<\/span> 0<\/span>;<\/span>
        \n }<\/span><\/p>\n

        @Override<\/span>
        \n public<\/span> int<\/span> update<\/span>(<\/span>Uri<\/span> uri,<\/span> ContentValues<\/span> values,<\/span> String<\/span> selection,<\/span>
        \n String<\/span>[<\/span>]<\/span> selectionArgs)<\/span> {<\/span>
        \n return<\/span> 0<\/span>;<\/span>
        \n }<\/span>
        \n}<\/span><\/p>\n

        \u76d1\u63a7 APP \u4f5c\u4e3a\u6570\u636e\u6d88\u8d39\u65b9：<\/p>\n

        \/\/ \u67e5\u8be2\u6700\u65b0\u7684\u4f20\u611f\u5668\u6570\u636e<\/span>
        \nCursor<\/span> cursor =<\/span> getContentResolver<\/span>(<\/span>)<\/span>.<\/span>query<\/span>(<\/span>
        \n Uri<\/span>.<\/span>parse<\/span>(<\/span>"content:\/\/com.example.collector.provider\/sensors"<\/span>)<\/span>,<\/span>
        \n new<\/span> String<\/span>[<\/span>]<\/span>{<\/span>"sensor_name"<\/span>,<\/span> "value"<\/span>,<\/span> "timestamp"<\/span>}<\/span>,<\/span>
        \n null<\/span>,<\/span> null<\/span>,<\/span>
        \n "timestamp DESC LIMIT 10"<\/span>
        \n)<\/span>;<\/span><\/p>\n

        while<\/span> (<\/span>cursor.<\/span>moveToNext<\/span>(<\/span>)<\/span>)<\/span> {<\/span>
        \n String<\/span> name =<\/span> cursor.<\/span>getString<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
        \n float<\/span> value =<\/span> cursor.<\/span>getFloat<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
        \n Log<\/span>.<\/span>d<\/span>(<\/span>"Monitor"<\/span>,<\/span> name +<\/span> " = "<\/span> +<\/span> value)<\/span>;<\/span>
        \n}<\/span>
        \ncursor.<\/span>close<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

        5.3 ContentProvider \u5728\u5de5\u63a7\u4e2d\u7684\u4ef7\u503c<\/h4>\n\n\u4f18\u52bf\u8bf4\u660e<\/tr>\n\n\n\n\n\n
        \u5b89\u5168\u53ef\u63a7<\/td>\n\u53ef\u4ee5\u7cbe\u786e\u63a7\u5236\u54ea\u4e9b APP \u80fd\u8bbf\u95ee\u3001\u80fd\u505a\u4ec0\u4e48\u64cd\u4f5c<\/td>\n<\/tr>\n
        \u89e3\u8026\u67b6\u6784<\/td>\n\u6570\u636e\u91c7\u96c6\u548c\u6570\u636e\u5c55\u793a\u5206\u79bb，\u5355 APP \u5d29\u6e83\u4e0d\u5f71\u54cd\u6570\u636e<\/td>\n<\/tr>\n
        \u5185\u5bb9\u89c2\u5bdf\u8005<\/td>\nContentObserver \u5b9e\u73b0\u6570\u636e\u53d8\u5316\u5b9e\u65f6\u901a\u77e5<\/td>\n<\/tr>\n
        \u7cfb\u7edf\u7ea7\u652f\u6301<\/td>\nAndroid \u6846\u67b6\u539f\u751f\u652f\u6301，\u4e0d\u4f9d\u8d56\u7b2c\u4e09\u65b9\u5e93<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        \u516d\u3001\u56db\u5927\u7ec4\u4ef6\u5de5\u63a7\u7528\u9014\u603b\u7ed3<\/h3>\n\n\u7ec4\u4ef6\u5de5\u63a7\u6838\u5fc3\u7528\u9014\u5178\u578b\u573a\u666f\u5fc5\u8981\u6027<\/tr>\n\n\n\n\n\n
        Activity<\/td>\n\u6570\u636e\u76d1\u63a7\u5927\u5c4f\u3001\u53c2\u6570\u914d\u7f6e<\/td>\n\u4ea7\u7ebf\u770b\u677f\u3001\u8bbe\u5907\u53c2\u6570\u8bbe\u7f6e\u9875<\/td>\n\u4e2d（\u65e0\u5c4f\u8bbe\u5907\u53ef\u4e0d\u8981）<\/td>\n<\/tr>\n
        Service<\/td>\n\u540e\u53f0\u5e38\u9a7b\u4efb\u52a1\u6267\u884c<\/td>\n\u4e32\u53e3\u91c7\u96c6\u3001Modbus \u8f6e\u8be2\u3001\u770b\u95e8\u72d7<\/td>\n\u6781\u9ad8<\/td>\n<\/tr>\n
        BroadcastReceiver<\/td>\n\u7cfb\u7edf\u4e8b\u4ef6\u611f\u77e5<\/td>\n\u5f00\u673a\u81ea\u542f\u3001\u7f51\u7edc\u65ad\u8fde\u544a\u8b66<\/td>\n\u9ad8<\/td>\n<\/tr>\n
        ContentProvider<\/td>\n\u591a APP \u6570\u636e\u5171\u4eab<\/td>\n\u91c7\u96c6\/\u76d1\u63a7\/\u4e0a\u62a5\u4e09 APP \u6570\u636e\u4e92\u901a<\/td>\n\u4e2d（\u5355 APP \u53ef\u4e0d\u7528）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        \u4e03\u3001\u603b\u7ed3<\/h3>\n

        \u56db\u5927\u7ec4\u4ef6\u5728\u5de5\u63a7\u5f00\u53d1\u4e2d\u7684\u5206\u91cf\u548c\u624b\u673a\u5f00\u53d1\u5b8c\u5168\u4e0d\u540c\u3002\u624b\u673a\u5f00\u53d1\u4ee5 Activity \u4e3a\u4e2d\u5fc3，\u91cd\u5728\u4ea4\u4e92\u548c\u4f53\u9a8c；\u5de5\u63a7\u5f00\u53d1\u4ee5 Service \u4e3a\u4e2d\u5fc3，\u91cd\u5728\u7a33\u5b9a\u548c\u81ea\u52a8\u5316\u3002<\/p>\n

        \u8bb0\u4f4f\u51e0\u4e2a\u539f\u5219：<\/p>\n

      • Service \u7528\u524d\u53f0\u6a21\u5f0f：\u5e26\u901a\u77e5\u680f\u5e38\u9a7b，\u7cfb\u7edf\u4e0d\u6562\u968f\u4fbf\u6740\u4f60<\/li>\n
      • BroadcastReceiver \u7528\u9759\u6001\u6ce8\u518c：\u4e0d\u4f9d\u8d56 Activity \u751f\u547d\u5468\u671f，\u5f00\u673a\u5c31\u80fd\u5e72\u6d3b<\/li>\n
      • Activity \u9501\u5b9a\u5168\u5c4f：\u522b\u8ba9\u5de5\u4eba\u78b0\u5230\u72b6\u6001\u680f\u548c\u865a\u62df\u6309\u952e<\/li>\n
      • ContentProvider \u5728\u591a APP \u573a\u666f\u624d\u7528：\u4e0d\u8981\u4e3a\u4e86\u7528\u800c\u7528，\u589e\u52a0\u590d\u6742\u5ea6<\/li>\n

        \u628a\u8fd9\u4e9b\u7ec4\u4ef6\u5403\u900f，\u4f60\u5728\u5de5\u63a7\u5b89\u5353\u5f00\u53d1\u8fd9\u6761\u8def\u4e0a\u5c31\u7b97\u6b63\u5f0f\u5165\u95e8\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

        Android \u56db\u5927\u7ec4\u4ef6\u57fa\u7840（Activity\/Service\/BroadcastReceiver\/ContentProvider）\u5de5\u63a7\u573a\u666f\u7528\u6cd5 \u56db\u5927\u7ec4\u4ef6\u662f\u5b89\u5353\u5e94\u7528\u5f00\u53d1\u7684\u5730\u57fa\u3002\u624b\u673a\u5f00\u53d1\u53ef\u80fd\u53ea\u7528 Activity \u5c31\u591f\u4e86，\u4f46\u5de5\u63a7\u573a\u666f\u4e0b\u56db\u4e2a\u7ec4\u4ef6\u5404\u53f8\u5176\u804c，\u7f3a\u4e00\u4e0d\u53ef\u3002\u4eca\u5929\u54b1\u4eec\u628a\u6bcf\u4e2a\u7ec4\u4ef6\u5728\u5de5\u63a7\u4e2d\u7684\u89d2\u8272\u548c\u5b9e\u6218\u4ee3\u7801\u90fd\u634b\u6e05\u695a\u3002 \u4e00\u3001\u56db\u5927\u7ec4\u4ef6\u6982\u8ff0\u4e0e\u5de5\u63a7\u4e2d\u7684\u89d2\u8272
        \nAndroid \u5e94\u7528\u7531\u56db\u79cd\u6838\u5fc3\u7ec4\u4ef6\u6784\u6210，\u5b83\u4eec\u5404\u53f8\u5176\u804c&#xff<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[9459,116,58,269,1363],"topic":[],"class_list":["post-84453","post","type-post","status-publish","format-standard","hentry","category-server","tag-9459","tag-adb","tag-linux","tag-269","tag-1363"],"yoast_head":"\nAndroid \u56db\u5927\u7ec4\u4ef6\u57fa\u7840\uff08Activity\/Service\/BroadcastReceiver\/ContentProvider\uff09\u5de5\u63a7\u573a\u666f\u7528\u6cd5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/84453.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Android \u56db\u5927\u7ec4\u4ef6\u57fa\u7840\uff08Activity\/Service\/BroadcastReceiver\/ContentProvider\uff09\u5de5\u63a7\u573a\u666f\u7528\u6cd5 - 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