调用远程service aidl接口定义

Android studio 查看aidl定义的文件：当你进入你的AIDL文件并编写好了之后，点击AS上方菜单栏中的Build->Make Project，之后便可以在当前工程的app/build/generated/source/aidl/debug中找到系统为我们生成的.java文件了。

Service端

  <service android:name="com.atguigu.l07_service.remote.MyRemoteService">
            <intent-filter>
                <action android:name="com.atguigu.l07_service.remote.MyRemoteService.Action"/>
            </intent-filter>
        </service>

public class MyRemoteService extends Service {

    @Override
    public IBinder onBind(Intent intent) {
        Log.e("TAG", "onBind()");
        return new StudentService();
    }

    @Override
    public boolean onUnbind(Intent intent) {
        Log.e("TAG", "onUnbind()");
        return super.onUnbind(intent);
    }

    //处理Student相关的业务逻辑类
    class StudentService extends IStudentService.Stub {
        @Override
        public Student getStudentById(int id) throws RemoteException {
            Log.e("TAG", "Service getStudentById() "+id);
            return new Student(id, "Tom", 10000);
        }
    }

}

《------------------------------start定义aidl接口--------------------------------------------》

定义自定义类型Student
//必须实现Parcelable接口
public class Student implements Parcelable {
  private int id;
  private String name;

　　get set。。。。

  public int describeContents() { return 0;}
  //将当前对象的属性数据写到Parcel包对象中(也就是打包) 打包解包在服务器端或client端都有可能，根据功能需求分类，如果服务器传出数据，则打包就在服务器端完成，如果客户端传输数据，则打包就在客户端完成
 public void writeToParcel(Parcel dest, int flags) {
    dest.writeInt(this.id);
    dest.writeString(this.name);
  }
  // 添加一个静态成员,名为CREATOR,该对象实现了Parcelable.Creator接口
  public static final Parcelable.Creator<Student> CREATOR = new Parcelable.Creator<Student>() {
    public Student createFromParcel(Parcel source) {
     return new Student(source.readInt(), source.readString());
    }
    public Student[] newArray(int size) {
     return new Student[size];
    }
  };
}

创建文件：Student.aidl
package com.atguigu.service.test.remote;
parcelable Student;    

创建文件：IStudentService.aidl
package com.atguigu.service.test.remote;
import com.atguigu.service.test.remote.Student;

interface IStudentService {
       Student getStudentById(int id);
}

eclipse自动生成一个通信接口类package com.atguigu.service.test.remote;
public interface IStudentService extends android.os.IInterface{
    .......
}

《------------------------------end定义aidl接口--------------------------------------------》

client

public class MainActivity extends Activity {

    private EditText et_aidl_id;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        et_aidl_id = (EditText) findViewById(R.id.et_aidl_id);
    }

    private ServiceConnection conn;
    private IStudentService studentService;

    public void bindRemoteService(View v) {

        Intent intent = new Intent(
                "com.atguigu.l07_service.remote.MyRemoteService.Action");
        if (conn == null) {
            conn = new ServiceConnection() {

                @Override
                public void onServiceDisconnected(ComponentName name) {

                }

                @Override
                public void onServiceConnected(ComponentName name,
                        IBinder service) {
                    Log.e("TAG", "onServiceConnected()");
                    studentService = IStudentService.Stub.asInterface(service);
                }
            };
            bindService(intent, conn, Context.BIND_AUTO_CREATE);
            Toast.makeText(this, "绑定Service", 0).show();
        } else {
            Toast.makeText(this, "已经绑定Service", 0).show();
        }

    }

    public void invokeRemote(View v) throws RemoteException {
        if(studentService!=null) {
            int id = Integer.parseInt(et_aidl_id.getText().toString());
            Student student = studentService.getStudentById(id);
            Toast.makeText(this, student.toString(), 0).show();
        }
    }

    public void unbindRemoteService(View v) {
        if (conn != null) {
            unbindService(conn);
            conn = null;
            studentService = null;
            Toast.makeText(this, "解绑Service", 0).show();
        } else {
            Toast.makeText(this, "还未绑定Service", 0).show();
        }
    }
}