Android远程服务(附Demo)

本地服务点这里本地服务(附Demo)

1.为什么要使用远程服务?

例如QQ 微信都需要登录，QQ有自己的登录，微信也有自己的登录，我们可以把登录功能提取出来。

哪个程序需要使用就调用这个提取出来的部分，而这个部分就需要用到远程服务。今天实现的Demo是比较偏向于底层的做法可以把QQ看做服务器，微信看做客户端。

2.多进程间启动Services

Android 5.0 之后，启动其他应用程序的服务，不允许使用隐式

ComponentName componentName=new ComponentName(“cn.veryedu.android_services”,”cn.veryedu.android_services.MyServices”);

intent.setComponent(componentName);

3.远程服务实现步骤

QQ登录最简单实现(原生态)
加入服务
使用接口实现
AIDLAIDL详诉
客户端(调用QQ登录服务)

1.原生态

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main"
    android:layout_width="match_parent" android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:orientation="vertical"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.zy_service02.MainActivity">

    <EditText
        android:id="@+id/et_main_number"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="admin" />

    <EditText
        android:id="@+id/et_main_pwd"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="123456" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="登录"
        android:onClick="login"
        />
</LinearLayout>

MainActivity

public class MainActivity extends AppCompatActivity {
    private EditText et_main_number;
    private EditText et_main_pwd;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        et_main_number = (EditText) findViewById(R.id.et_main_number);
        et_main_pwd = (EditText) findViewById(R.id.et_main_pwd);



    }
     public  void login(View view){
        String number=et_main_number.getText().toString();
        String pwd=et_main_pwd.getText().toString();
         boolean flag = false;
         if("admin".equals(number)&&"123456".equals(pwd)){
                flag = true;
            }

            Toast.makeText(this, ""+flag, Toast.LENGTH_SHORT).show();
    }

2.加入服务

新建一个类继承自Service

QQLoginService

public class QQLoginService extends Service{
    //类似  WEB 业务逻辑类
    class MyIBinder extends Binder{
        public  boolean login(String number,String pwd){
           if("admin".equals(number)&&"123456".equals(pwd)){
                return true;
            }
            return false;
        }
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return new MyIBinder();
    }
}

AndroidManifest.xml 在清单文件中配置

<service android:name=".QQLoginService"
            android:exported="true"
            ></service>

MainActivity

public class MainActivity extends AppCompatActivity {
    private EditText et_main_number;
    private EditText et_main_pwd;
    private Intent intent;
    private QQLoginService.MyIBinder myIBinder;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        et_main_number = (EditText) findViewById(R.id.et_main_number);
        et_main_pwd = (EditText) findViewById(R.id.et_main_pwd);

        intent = new Intent(this,QQLoginService.class);

    }
    ServiceConnection connection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder iBinder) {
            myIBinder = (QQLoginService.MyIBinder) iBinder;     
        }

        @Override
        public void onServiceDisconnected(ComponentName name) {

        }
    };
    @Override
    protected void onResume() {
        super.onResume();
        //绑定服务
        bindService(intent,connection, Service.BIND_AUTO_CREATE);
    }

    public  void login(View view){
        String number=et_main_number.getText().toString();
        String pwd=et_main_pwd.getText().toString();
        boolean flag = qqLoginInterface.login(number,pwd);
        Toast.makeText(this, ""+flag, Toast.LENGTH_SHORT).show();

    }
}

3.使用接口

新建一个QQLoginInterface接口

public interface QQLoginInterface {
    public boolean login(String number,String pwd);

}

QQLoginService

public class QQLoginService extends Service{


//    //WEB 业务逻辑类
    class MyIBinder extends Binder implements QQLoginInterface{
        @Override
        public boolean login(String number, String pwd) {
            if("admin".equals(number)&&"123456".equals(pwd)){
                return true;
           }

            return false;
        }
//        public  boolean login(String number,String pwd){
//            if("admin".equals(number)&&"123456".equals(pwd)){
//                return true;
//            }
//
//            return false;
//        }
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return new MyIBinder();
    }
}

MainActivity

public class MainActivity extends AppCompatActivity {
    private EditText et_main_number;
    private EditText et_main_pwd;
    private Intent intent;
    private QQLoginService.MyIBinder myIBinder;
    private QQLoginInterface qqLoginInterface;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        et_main_number = (EditText) findViewById(R.id.et_main_number);
        et_main_pwd = (EditText) findViewById(R.id.et_main_pwd);

        intent = new Intent(this,QQLoginService.class);

    }
    ServiceConnection connection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder iBinder) {
            //myIBinder = (QQLoginService.MyIBinder) iBinder;
            qqLoginInterface = (QQLoginInterface) iBinder;

        }

        @Override
        public void onServiceDisconnected(ComponentName name) {

        }
    };
    @Override
    protected void onResume() {
        super.onResume();
        //绑定服务
        bindService(intent,connection, Service.BIND_AUTO_CREATE);
    }

    public  void login(View view){
        String number=et_main_number.getText().toString();
        String pwd=et_main_pwd.getText().toString();
        boolean flag = qqLoginInterface.login(number,pwd);
         Toast.makeText(this, ""+flag, Toast.LENGTH_SHORT).show();
    }
}

4.AIDL

AIDL 即 android interface define language 安卓接口定义语音，如果要实现经常间的通讯就要使用到AIDL,接下来看如何实现的。

右击MainActivity所对应的包，找到AIDL，新建一个(该名字不能与刚刚新建的接口名字一样).aidl文件夹

QQLoginInterfaceOut.aidl

interface QQLoginInterfaceOut {
      boolean login(String number,String pwd);

}

这里重新编译项目，然后切换到project在build下面的generated下面的 sourse 找到aidl 。

系统会自动帮你创建一个名为QQLoginInterfaceOut.java的类注意不要去修改这个类的任何代码，如果其他应用程序需要使用到我们的应用，就需要这个类。

QQLoginService

public class QQLoginService extends Service{

    class MyIBinder extends QQLoginInterfaceOut.Stub{

        @Override
        public boolean login(String number, String pwd) throws RemoteException {
            if("admin".equals(number)&&"123456".equals(pwd)){
                return true;
            }
            return false;
        }
    }

//    //WEB 业务逻辑类
//    class MyIBinder extends Binder implements QQLoginInterface{
//        @Override
//        public boolean login(String number, String pwd) {
//            if("admin".equals(number)&&"123456".equals(pwd)){
//                return true;
//            }
//
//            return false;
//        }
//        public  boolean login(String number,String pwd){
//            if("admin".equals(number)&&"123456".equals(pwd)){
//                return true;
//            }
//
//            return false;
//        }
    //}

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return new MyIBinder();
    }
}

MainActivity

public class MainActivity extends AppCompatActivity {
    private EditText et_main_number;
    private EditText et_main_pwd;
    private Intent intent;
    private QQLoginService.MyIBinder myIBinder;
    private QQLoginInterface qqLoginInterface;
    private QQLoginInterfaceOut qqLoginInterfaceOut;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        et_main_number = (EditText) findViewById(R.id.et_main_number);
        et_main_pwd = (EditText) findViewById(R.id.et_main_pwd);

        intent = new Intent(this,QQLoginService.class);

    }
    ServiceConnection connection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder iBinder) {
            //myIBinder = (QQLoginService.MyIBinder) iBinder;
            //qqLoginInterface = (QQLoginInterface) iBinder;
            qqLoginInterfaceOut = QQLoginInterfaceOut.Stub.asInterface(iBinder);
        }

        @Override
        public void onServiceDisconnected(ComponentName name) {

        }
    };
    @Override
    protected void onResume() {
        super.onResume();
        //绑定服务
        bindService(intent,connection, Service.BIND_AUTO_CREATE);
    }

    public  void login(View view){
        String number=et_main_number.getText().toString();
        String pwd=et_main_pwd.getText().toString();
//        boolean flag = qqLoginInterface.login(number,pwd);
        boolean flag = false;
        try {
            flag = qqLoginInterfaceOut.login(number,pwd);

        } catch (RemoteException e) {
            e.printStackTrace();
        }
         Toast.makeText(this, ""+flag, Toast.LENGTH_SHORT).show();
    }
}

5.我们再来看客户端

1)重新新建一个项目

2)将QQ登录服务器这个项目切到project 将系统为我们自动生成的QQLoginInterfaceOut.java的类连同包copy到新建的项目中(非常重要)。下面附代码

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main"
    android:layout_width="match_parent" android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:orientation="vertical"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.zy_service02wx.MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="WX"
        android:textSize="30sp"
        />
    <EditText
        android:id="@+id/et_main_number"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="admin" />

    <EditText
        android:id="@+id/et_main_pwd"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="123456" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="登录"
        android:onClick="login"
        />
</LinearLayout>

MainActivity

public class MainActivity extends AppCompatActivity {
    private EditText et_main_number;
    private EditText et_main_pwd;
    private Intent intent;
    private QQLoginInterfaceOut qqLoginInterfaceOut;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        et_main_number = (EditText) findViewById(R.id.et_main_number);
        et_main_pwd = (EditText) findViewById(R.id.et_main_pwd);
        intent = new Intent();
        //多进程间服务的启动 com.example.zy_service02为qq登录服务器包名(将要启动应用程序的包名)
        //com.example.zy_service02.QQLoginService 你要启动该应用程序下面的哪个类 
        ComponentName componentName = new ComponentName("com.example.zy_service02","com.example.zy_service02.QQLoginService");
        intent.setComponent(componentName);


    }

    ServiceConnection serviceConnection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            qqLoginInterfaceOut = QQLoginInterfaceOut.Stub.asInterface(service);
        }

        @Override
        public void onServiceDisconnected(ComponentName name) {

        }
    };
    @Override
    protected void onResume() {
        super.onResume();
        //绑定服务
        bindService(intent,serviceConnection, Service.BIND_AUTO_CREATE);
    }

    public void login(View view){
        String number = et_main_number.getText().toString();
        String pwd= et_main_pwd.getText().toString();
        boolean flag=false;
        try {
            flag = qqLoginInterfaceOut.login(number,pwd);

        } catch (RemoteException e) {
            e.printStackTrace();
        }
        Toast.makeText(this, ""+flag, Toast.LENGTH_SHORT).show();
    }
}

这里客户端并没有创建服务，而是使用了服务器的登录服务。不知道大家理解了没有呢，希望多多评论吧，给点谩骂也行啊- -

Android远程服务(附Demo)

1.为什么要使用远程服务?

2.多进程间启动Services

3.远程服务实现步骤

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