{"id":4954,"date":"2023-09-12T19:51:38","date_gmt":"2023-09-12T11:51:38","guid":{"rendered":"https:\/\/blog.coderfan.org\/?p=4954"},"modified":"2024-03-20T22:50:43","modified_gmt":"2024-03-20T14:50:43","slug":"android-app-development-service-usage","status":"publish","type":"post","link":"https:\/\/blog.coderfan.org\/en\/android-app-development-service-usage.html","title":{"rendered":"Android\u5e94\u7528\u56db\u5927\u7ec4\u4ef6\u4e4bService"},"content":{"rendered":"
\n
\n \t<\/i> Read Time:<\/span>1 Minute, 27 Second <\/div>\n\n <\/div>\n

\u670d\u52a1\u6982\u89c8<\/h4>\n\n\n\n

\u670d\u52a1(service)\u662f\u6307\u5728\u540e\u53f0\u957f\u671f\u8fd0\u884c\u800c\u4e0d\u63d0\u4f9b\u754c\u9762\u4ea4\u4e92\u7684\u670d\u52a1\uff0cservice\u5206\u4e3a\u4e24\u79cd\uff0c\u53ef\u4ee5\u4f9d\u636e\u5176\u542f\u52a8\u65b9\u5f0f\u6765\u8fdb\u884c\u533a\u5206\uff1a<\/p>\n\n\n\n

started(\u542f\u52a8):\u5e94\u7528\u7a0b\u5e8f\u7ec4\u4ef6\u901a\u8fc7\u8c03\u7528startService\u65b9\u6cd5\u542f\u52a8\u670d\u52a1\u65f6\uff0c\u7a0b\u5e8f\u5c31\u4f1a\u5904\u4e8estarted\u72b6\u6001\uff0c\u5f53service\u5904\u4e8estarted\u65f6\uff0c\u5176\u751f\u547d\u5468\u671f\u4e0e\u542f\u52a8\u5b83\u7684\u7ec4\u4ef6\u65e0\u5173\uff0c\u5176\u62e5\u6709\u81ea\u5df1\u7684\u751f\u547d\u5468\u671f\uff0c\u9664\u975e\u5176\u81ea\u8eab\u5728\u6267\u884c\u5b8c\u4efb\u52a1\u540e\u8c03\u7528stopSelf\u8fdb\u884c\u7ec8\u6b62\uff0c\u6216\u8005\u7531\u5176\u4ed6\u7ec4\u4ef6\u8c03\u7528stopService\u65b9\u6cd5\u505c\u6b62\u3002\u4f7f\u7528startService\u542f\u52a8\u670d\u52a1\uff0c\u63a5\u6536\u5230\u7684\u56de\u8c03\u4e3aonStartCommand\u3002<\/p>\n\n\n\n

bound(\u7ed1\u5b9a):\u5e94\u7528\u7ec4\u4ef6\u901a\u8fc7\u8c03\u7528\u8c03\u7528bindService\u65b9\u6cd5\u542f\u52a8\u670d\u52a1\u540e\uff0c\u670d\u52a1\u5373\u5904\u4e8ebound\u72b6\u6001\uff0c\u89e6\u53d1\u7684\u56de\u8c03\u4e3aonBind\uff0c\u5904\u4e8ebound\u72b6\u6001\u7684\u670d\u52a1\u4f1a\u5728\u8c03\u7528\u8005\u9000\u51fa\u65f6\u4e00\u5e76\u9000\u51fa,\u5f53\u6240\u6709\u4e0e\u670d\u52a1\u7ed1\u5b9a\u7684client\u90fd\u9500\u6bc1\u65f6\uff0c\u670d\u52a1\u5373\u7ec8\u6b62\uff0c\u89e6\u53d1\u7684\u56de\u8c03\u4e3aonUnBind\u3002\u901a\u8fc7bindService\u542f\u52a8\u7684\u670d\u52a1\u53c8\u5206\u4e3a\u524d\u53f0\u670d\u52a1\uff08Foregroud Service\uff09\u548c\u540e\u53f0\u670d\u52a1\uff08Background Service\uff09\u3002\u524d\u53f0\u670d\u52a1\u542f\u52a8\u65f6\u4f1a\u901a\u8fc7dialog\u5411\u7528\u6237\u7533\u8bf7\u6743\u9650\uff0c\u800c\u540e\u53f0\u670d\u52a1\u5bf9\u7528\u6237\u662f\u5b8c\u5168\u65e0\u611f\u77e5\u7684\u3002<\/p>\n\n\n\n

\u8fd9\u4e24\u79cd\u7c7b\u578b\u7684service\uff0c\u5176\u751f\u547d\u5468\u671f\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u670d\u52a1\u5b9e\u73b0<\/h4>\n\n\n\n

\u670d\u52a1\u5b9e\u73b0\u9075\u5faa\u4e00\u5b9a\u7684\u89c4\u5219\u3002\u5927\u81f4\u5206\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a<\/p>\n\n\n\n

1.\u521b\u5efaService\u7684\u5b50\u7c7b\uff0c\u6216\u7ee7\u627f\u5176\u73b0\u6709\u7684\u5b50\u7c7b\uff08\u6bd4\u8f83\u5e38\u7528\u7684\u5982IntentService\u7c7b\uff09\u3002\u5728\u5b9e\u73b0\u4e2d\uff0c\u6211\u4eec\u5fc5\u987b\u91cd\u5199\u4e00\u4e9b\u56de\u8c03\u65b9\u6cd5\uff0c\u4ece\u800c\u5904\u7406\u670d\u52a1\u751f\u547d\u5468\u671f\u7684\u67d0\u4e9b\u5173\u952e\u65b9\u9762\u3002\u6211\u4eec\u9700\u8981\u91cd\u5199\u7684\u56de\u8c03\u65b9\u6cd5\u5305\u62ec\uff1a<\/p>\n\n\n\n

onStartCommand<\/strong>\uff1a\u5f53\u5e94\u7528\u4e2d\u7684\u5176\u4ed6\u7ec4\u4ef6\u542f\u52a8\u670d\u52a1\u65f6\uff0c\u5373\u901a\u8fc7startService\u6765\u542f\u52a8\u670d\u52a1\uff0c\u670d\u52a1\u542f\u52a8\u540e\u5373\u53ef\u5728\u540e\u53f0\u65e0\u9650\u671f\u8fd0\u884c\uff0c\u5728\u670d\u52a1\u7ed3\u675f\u540e\u9700\u8981\u901a\u8fc7\u8c03\u7528stopSelf\u6216\u8005stopService\u6765\u505c\u6b62\u670d\u52a1\u3002<\/p>\n\n\n\n

onBind<\/strong>\uff1a\u5f53\u53e6\u4e00\u4e2a\u7ec4\u4ef6\u60f3\u8981\u7ed1\u5b9a\u670d\u52a1\uff0c\u4e5f\u5c31\u662f\u901a\u8fc7\u8c03\u7528bindService\u7684\u63a5\u53e3\u6765\u7ed1\u5b9a\uff0c\u5728\u8be5\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u5fc5\u987b\u901a\u8fc7\u8fd4\u56deIBinder\u5bf9\u8c61\u63d0\u4f9bbinder\u63a5\u53e3<\/p>\n\n\n\n

onCreate<\/strong>\uff1a\u9996\u6b21\u521b\u5efa\u670d\u52a1\u65f6\uff0c\u5728onStartCommand\u6216onBind\u4e4b\u524d\uff0c\u4f1a\u89e6\u53d1onCreate\u56de\u8c03\uff0c\u5728\u8be5\u56de\u8c03\u5185\uff0c\u6211\u4eec\u5e94\u5f53\u5b8c\u6210\u670d\u52a1\u521d\u59cb\u5316\u914d\u7f6e<\/p>\n\n\n\n

onDestroy<\/strong>\uff1a\u5f53\u6211\u4eec\u4e0d\u518d\u9700\u8981\u4f7f\u7528\u670d\u52a1\uff0c\u51c6\u5907\u5c06\u5176\u9500\u6bc1\u65f6\uff0c\u4f1a\u89e6\u53d1onDestroy\u56de\u8c03\uff0c\u6211\u4eec\u5e94\u5f53\u5728onDestroy\u4e2d\u6267\u884c\u6e05\u7406\u5de5\u4f5c\u3002<\/p>\n\n\n\n

\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n

public class ExampleService extends Service {\n\n    @Override\n    public void onCreate() {\n       .....\n    }\n\n    @Override\n    public int onStartCommand(Intent intent, int flags, int startId) {\n       .....\n    }\n\n    @Override\n    public void onDestroy() {\n       .....\n    }\n\n    @Override\n    public IBinder onBind(Intent intent) {\n       .....\n    }\n\n }<\/code><\/pre>\n\n\n\n
2.\u7c7b\u4f3c\u4e8eActivity\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u5728\u5e94\u7528\u6e05\u5355\u6587\u4ef6AndroidManifest.xml\u4e2d\u914d\u7f6eservice\u5b57\u6bb5\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n
<manifest ... >\n  ...\n  <application ... >\n      <service android:name=\".ExampleService\" \/>\n      ...\n  <\/application>\n<\/manifest>\n<\/code><\/pre>\n\n\n\n
\u5176\u4e2dandroid:name\u5b57\u6bb5\u7528\u4e8e\u6307\u5b9a\u8be5service\u5bf9\u5e94\u7684\u5177\u4f53\u7684\u540d\u79f0\uff0cAndroidManifest.xml\u4e2d\u53ef\u4ee5\u914d\u7f6e\u7684service\u5185\u5bb9\u5177\u4f53\u53ef\u53c2\u8003\u5982\u4e0bLink<\/a>\uff0c\u8fd9\u91cc\u6458\u5f55\u4e00\u4e9b\u6bd4\u8f83\u91cd\u8981\u4e14\u5e38\u7528\u7684\u3002<\/p>\n\n\n\n
android:enabled<\/strong>\uff1a\u786e\u5b9a\u7cfb\u7edf\u662f\u5426\u53ef\u4ee5\u5b9e\u4f8b\u5316\u670d\u52a1\u3002\u5982\u679c\u53ef\u4ee5\u5b9e\u4f8b\u5316\uff0c\u5219\u8bbe\u4e3a\u00a0\"true\"<\/code>\uff0c\u5426\u5219\u8bbe\u4e3a\u00a0\"false\"<\/code>\uff0c\u9ed8\u8ba4\u503c\u4e3a\u00a0\"true\"<\/code>\u3002<\/p>\n\n\n\n
android:exported<\/strong>\uff1a\u786e\u5b9a\u5176\u4ed6\u5e94\u7528\u7684\u7ec4\u4ef6\u662f\u5426\u53ef\u4ee5\u8c03\u7528\u670d\u52a1\u6216\u4e0e\u4e4b\u4ea4\u4e92\u3002\u5982\u679c\u53ef\u4ee5\uff0c\u5219\u8bbe\u4e3a\u00a0\"true\"<\/code>\uff0c\u5426\u5219\u8bbe\u4e3a\u00a0\"false\"<\/code>\u3002\u5f53\u8be5\u503c\u4e3a\u00a0\"false\"<\/code>\u00a0\u65f6\uff0c\u53ea\u6709\u540c\u4e00\u4e2a\u5e94\u7528\u6216\u5177\u6709\u76f8\u540c\u7528\u6237 ID \u7684\u5e94\u7528\u7684\u7ec4\u4ef6\u53ef\u4ee5\u542f\u52a8\u670d\u52a1\u6216\u7ed1\u5b9a\u5230\u670d\u52a1<\/p>\n\n\n\n
android:permission<\/strong>\uff1a\u7528\u4e8e\u6307\u5b9a\u542f\u52a8\u670d\u52a1\u6216\u7ed1\u5b9a\u5230\u670d\u52a1\u6240\u9700\u7684\u6743\u9650\u7684\u540d\u79f0\uff0c\u5982\u679c\u6ca1\u6709\u5411\u542f\u52a8\u670d\u52a1\u7684\u8c03\u7528\u65b9\u6388\u4e88\u76f8\u5173\u6743\u9650\uff0c\u5c06\u65e0\u6cd5\u542f\u52a8\u670d\u52a1\u3002<\/p>\n\n\n\n
\u542f\u52a8\u670d\u52a1<\/h4>\n\n\n\n
\u524d\u9762\u5df2\u7ecf\u8bb2\u8fc7\uff0c\u542f\u52a8\u670d\u52a1\u6709\u4e24\u79cd\u65b9\u5f0f\uff0c\u5373startService\u4e8ebindService\uff0c\u524d\u8005\u9002\u5408\u8ba9service\u957f\u671f\u540e\u53f0\u8fd0\u884c\uff0c\u800c\u540e\u8005\u901a\u5e38\u7ed1\u5b9a\u5230\u5e94\u7528\u7684\u5176\u4ed6\u7ec4\u4ef6\uff0c\u5176\u751f\u547d\u5468\u671f\u53d7\u6240\u7ed1\u5b9a\u7684\u7ec4\u4ef6\u5f71\u54cd\u3002\u8fd9\u91cc\u5c06\u901a\u8fc7\u793a\u4f8b\u5411\u5927\u5bb6\u5c55\u793a\u5982\u4f55\u542f\u52a8\u670d\u52a1\u3002<\/p>\n\n\n\n
startService:<\/p>\n\n\n\n
startService(Intent \u00a0service);<\/p>\n\n\n\n
\u4f7f\u7528\u793a\u4f8b\uff1a<\/p>\n\n\n\n
startService(new Intent(this, ExampleService.class));<\/code><\/pre>\n\n\n\n
bindService:<\/p>\n\n\n\n
bindService(Intent service, ServiceConnection conn,int flags);<\/p>\n\n\n\n
service\uff1a\u6307\u9700\u8981\u7ed1\u5b9a\u7684\u670d\u52a1<\/p>\n\n\n\n
conn\uff1a\u4e00\u4e2a\u63a5\u53e3\uff0c\u9700\u8981\u5b9e\u73b0\u4e24\u4e2a\u56de\u8c03onServiceConnected\u548conServiceDisconnected<\/p>\n\n\n\n
flags\uff1a\u4e00\u822c\u9009\u62e9BIND_AUTO_CREATE\uff0c\u5f53\u670d\u52a1\u4e0d\u5b58\u5728\u65f6\u81ea\u52a8\u521b\u5efa\u8be5\u670d\u52a1\uff0c\u89e6\u53d1onCreate\u56de\u8c03\uff0c\u5982\u670d\u52a1\u5df2\u5b58\u5728\uff0c\u5219\u89e6\u53d1onBind\u56de\u8c03.<\/p>\n\n\n\n
\u4f7f\u7528\u793a\u4f8b\uff1a<\/p>\n\n\n\n
Intent intent = new Intent(this, ExampleService.class);\nbindService(intent, conn, Context.BIND_AUTO_CREATE);<\/code><\/pre>\n\n\n\n
\u76f8\u5bf9\u4e8estartService\uff0cbindService\u5b9e\u73b0\u4f1a\u66f4\u590d\u6742\u4e00\u4e9b\uff0c\u8fd9\u91cc\u5c06\u4ee5Activity\u4e2d\u542f\u52a8service\u4e3a\u4f8b\uff0c\u901a\u8fc7bindService\u6765\u542f\u52a8\u670d\u52a1\uff1a<\/p>\n\n\n\n
import android.content.Intent;\nimport android.content.ServiceConnection;\n\npublic class MainActivity extends Activity {\n\tprivate ExampleService mService=null;\n\t\n\tprivate ServiceConnection conn = new ServiceConnection (){\n\t@Override\n        public void onServiceConnected(ComponentName name, IBinder binder) {\n              \/\/\u901a\u8fc7ExampleService\u7684\u5185\u90e8\u5185\u83b7\u53d6\u670d\u52a1\u5bf9\u8c61\n              \/\/\u5f53\u6211\u4eec\u901a\u8fc7bindService\u542f\u52a8\u670d\u52a1\u540e\uff0c\u5728onServiceConnected\u56de\u8c03\u4e2d\u8d4b\u503c\n              ExampleService.myBinder mBinder=\uff08ExampleService.myBinder\uff09 binder;\n              mService = mBinder.getService() ;\n        }\n        @Override\n        public void onServiceDisconnected(ComponentName name) {\n        }\n    }\n\n   \/\/bindService\u8c03\u7528,\u542f\u52a8\u670d\u52a1\n   @Override\n      protected void onCreate(Bundle savedInstanceState) {\n\t     Intent intent = new Intent(this, ExampleService.class);\n\t     bindService(intent,conn,Context.BIND_AUTO_CREATE);\n    }\n    \/\/onDestroy\u65f6\u9700\u8981unbindService\n    @Override\n    protected void onDestroy() {\n       if(mService!= null ){\n          unbindService(mConnection);\n       }\n    }\n}\n<\/code><\/pre>\n\n\n\n
<\/p>\n        
\n            
\n                \n                
\n                    \n                        \"Happy\"\n                    <\/a>\n                    
\n                        Happy                    <\/div>\n                    
\n                                                    1<\/span>\n                        \n                                                100<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Sad\"\n                    <\/a>\n                    
\n                        Sad                    <\/div>\n                    
\n                                                    0<\/span>\n                                                                        0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Excited\"\n                    <\/a>\n                    
\n                        Excited                    <\/div>\n                    
\n                                                    0<\/span>\n                                                                        0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Sleepy\"\n                    <\/a>\n                    
\n                        Sleepy                    <\/div>\n                    
\n                                                    0<\/span>\n                        \n                                                0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Angry\"\n                    <\/a>\n                    
Angry<\/div>\n                    
\n                                                    0<\/span>\n                                                                        0<\/span> %<\/span>\n                        \n                    <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Surprise\"\n                    <\/a>\n                    
Surprise<\/div>\n                    
\n                                                    0<\/span>\n                                                                        0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n            <\/div>\n        <\/div>","protected":false},"excerpt":{"rendered":"
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Android App\u5f00\u53d1\u56db\u5927\u7ec4\u4ef6\u4e4bService\u4f7f\u7528<\/p>\n","category_list":"\u64cd\u4f5c\u7cfb\u7edf<\/a>","author_info":{"name":"FranzKafka95","url":"https:\/\/blog.coderfan.org\/en\/author\/yushenglonely95"},"comments_num":"0 comments","featured_image_urls_v2":{"full":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"thumbnail":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android-150x150.jpg",150,150,true],"medium":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android-300x158.jpg",300,158,true],"medium_large":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"large":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"1536x1536":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"2048x2048":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"trp-custom-language-flag":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android-18x9.jpg",18,9,true]},"post_excerpt_stackable_v2":"
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