Android Studio Service 介绍

最近在学习   Android Studio         和eclipse还是有很多不同的地方,   正好用到 AIDL,  发现有些不同的地方,第一次在CSDN写这个,写的不好,希望大家多见谅,有错的地方欢迎大家给我留言,我会虚心的接受,并予以改正,下边进入正题.

转载请注明出处: http://blog.csdn.net/zhaoshiyu1/article/details/50831798

感谢郭老师的文章,帮助我很多http://blog.csdn.net/guolin_blog/article/details/11952435

新建一个module,命名ServiceTest

public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private Button startService;    private Button stopService;    private Button bindService;    private Button unbindService;    private MyService.MyBinder myBinder;    private boolean isBinder = false;    private MyAIDLService myAIDLService;    //ServiceConnection的匿名类    private ServiceConnection connection = new ServiceConnection() {        // 这两个方法分别会在Activity与Service建立关联和解除关联的时候调用        @Override        public void onServiceDisconnected(ComponentName name) {        }        @Override        public void onServiceConnected(ComponentName name, IBinder service) {//            myBinder = (MyService.MyBinder) service;//            myBinder.startDownload();            myAIDLService = MyAIDLService.Stub.asInterface(service);            try {                int result = myAIDLService.plus(3, 5);                String upperStr = myAIDLService.toUpperCase("hello world");                Log.d("TAG", "result is " + result);                Log.d("TAG", "upperStr is " + upperStr);            } catch (RemoteException e) {                e.printStackTrace();            }        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        startService = (Button) findViewById(R.id.start_service);        stopService = (Button) findViewById(R.id.stop_service);        bindService = (Button) findViewById(R.id.bind_service);        unbindService = (Button) findViewById(R.id.unbind_service);        startService.setOnClickListener(this);        stopService.setOnClickListener(this);        bindService.setOnClickListener(this);        unbindService.setOnClickListener(this);        Log.d("MyService", "MainActivity thread id is " + Thread.currentThread().getId());        Log.d("TAG", "process id is " + Process.myPid());    }    @Override    public void onClick(View v) {        switch (v.getId()) {            case R.id.start_service:                Intent startIntent = new Intent(this, MyService.class);                startService(startIntent);                break;            case R.id.stop_service:                Log.d("MyService", "click Stop Service button");                Intent stopIntent = new Intent(this, MyService.class);                stopService(stopIntent);                break;            case R.id.bind_service:                if (isBinder == false) {                    Intent bindIntent = new Intent(this, MyService.class);                    bindService(bindIntent, connection, BIND_AUTO_CREATE);                    isBinder = true;                }                break;            case R.id.unbind_service:                if (isBinder == true) {                    Log.d("MyService", "click Unbind Service button");                    unbindService(connection);                    isBinder = false;                }                break;            default:                break;        }    }}

新建一个  MyService 类  

public class MyService extends Service {    public static final String TAG = "MyService";    private MyBinder mBinder = new MyBinder();//    private NotificationManager notificationManager = null;    @Override    public IBinder onBind(Intent intent) {        // TODO: Return the communication channel to the service.        //throw new UnsupportedOperationException("Not yet implemented");       // return mBinder;        return mBinder2;    }    MyAIDLService.Stub mBinder2 = new MyAIDLService.Stub() {        @Override        public String toUpperCase(String str) throws RemoteException {            if (str != null) {                return str.toUpperCase();            }            return null;        }        @Override        public int plus(int a, int b) throws RemoteException {            return a + b;        }    };    @Override    public void onCreate() {        super.onCreate();        //service线程休眠会导致ANR,       /*       try {            Thread.sleep(60000);        } catch (InterruptedException e) {            e.printStackTrace();        }        */        Log.d("MyService", "MyService thread id is " + Thread.currentThread().getId());        Log.d(TAG, "onCreaMyte() executed");        Log.d("TAG", "process id is " + Process.myPid());               Notification.Builder builder = new Notification.Builder(this);        Intent notificationIntent = new Intent(this, MainActivity.class);        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,                notificationIntent, PendingIntent.FLAG_ONE_SHOT);        builder.setContentTitle("这是通知的标题")                .setContentIntent(pendingIntent)                .setSmallIcon(R.mipmap.ic_launcher)                .setContentText("这是通知的内容");        //将Notification变为前台service        startForeground(1, builder.build());         }    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        Log.d(TAG, "onStartCommand() executed");        new Thread(new Runnable() {            @Override            public void run() {                // 开始执行后台任务            }        }).start();        return super.onStartCommand(intent, flags, startId);    }    @Override    public void onDestroy() {        super.onDestroy();        Log.d(TAG, "onDestroy() executed");    }    class MyBinder extends Binder {        public void startDownload() {            Log.d("TAG", "startDownload() executed");            new Thread(new Runnable() {                @Override                public void run() {                    // 执行具体的下载任务                }            }).start();        }    }}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.yu.servicetest">    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <activity android:name=".MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <service            android:name=".MyService"            android:enabled="true"            android:exported="true"            android:process=":remote">            <intent-filter>                <action android:name="com.yu.servicetest.MyAIDLService"/>            </intent-filter>        </service>    </application></manifest>

activity_main

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">    <Button        android:id="@+id/start_service"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="Start Service" />    <Button        android:id="@+id/stop_service"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="Stop Service" />    <Button        android:id="@+id/bind_service"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="Bind Service" />    <Button        android:id="@+id/unbind_service"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="Unbind Service"        /></LinearLayout>

下面是重点,就是和eclipse不太一样的地方.....

新建一个AIDL

点击finish完成.

编辑      MyAIDLService.aidl

// MyAIDLService.aidlpackage com.yu.servicetest;// Declare any non-default types here with import statementsinterface MyAIDLService {    /**     * Demonstrates some basic types that you can use as parameters     * and return values in AIDL.     */     int plus(int a,int b);     String toUpperCase(String str);//    void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat,//            double aDouble, String aString);}

之后make project   一下,

看一下,这个路径下是否  自动生成了接口....

在新建一个Module   用于访问servicetest,命名为ClientTest

MainActivity

public class MainActivity extends AppCompatActivity {    private MyAIDLService myAIDLService;    private ServiceConnection connection = new ServiceConnection() {        @Override        public void onServiceDisconnected(ComponentName name) {        }        @Override        public void onServiceConnected(ComponentName name, IBinder service) {            myAIDLService = MyAIDLService.Stub.asInterface(service);            try {                int result = myAIDLService.plus(50, 50);                String upperStr = myAIDLService.toUpperCase("comes from ClientTest");                Log.d("TAG", "result is " + result);                Log.d("TAG", "upperStr is " + upperStr);            } catch (RemoteException e) {                e.printStackTrace();            }        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Button bindService = (Button) findViewById(R.id.bind_service);        bindService.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Intent intent = new Intent("com.yu.servicetest.MyAIDLService");                bindService(intent, connection, BIND_AUTO_CREATE);            }        });    }}

activity_main

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">    <Button        android:id="@+id/bind_service"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="Bind Service" /></LinearLayout>

和eclipse不同的地方来了.....

将上个Module写好的aidl文件夹,直接复制到ClientTest Module下的main文件夹下,和java同级

make project  一下

在gen目录下,会生成与serviceTest同样的接口类

最后就是运行下ServiceTest  绑定服务  ,然后运行下  ClientTest.点击按钮

要是有什么写的不对的地方,请给我留言,我会及时改正的,谢谢,

再次感谢郭老师的文章,写的非常好