[移动开发]AIDL入门学习二

传递自定义对象

1、服务端

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// IImoocAidl.aidl
package com.test.aidltest3;

import com.test.aidltest3.Person;
// Declare any non-default types here with import statements

interface IImoocAidl {

    List<Person> add(in Person person);

}

// IImoocAidl.aidl
package com.test.aidltest3;

parcelable Person;

public class ServerActivity extends AppCompatActivity {

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

public class IRemoteService extends Service {

    private ArrayList<Person> persons;

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        persons = new ArrayList<>();
        return iBinder;
    }

    private IBinder iBinder = new IImoocAidl.Stub() {

        @Override
        public List<Person> add(Person person) throws RemoteException {
            persons.add(person);
            return persons;
        }
    };


}

Service需要在清单配置文件注册：

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

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public class Person implements Parcelable {

    private String name;
    private int age;

    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }

    protected Person(Parcel in) {
        name = in.readString();
        age = in.readInt();
    }

    public static final Creator<Person> CREATOR = new Creator<Person>() {
        @Override
        public Person createFromParcel(Parcel in) {
            return new Person(in);
        }

        @Override
        public Person[] newArray(int size) {
            return new Person[size];
        }
    };

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }


    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel parcel, int i) {
        parcel.writeString(name);
        parcel.writeInt(age);
    }

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}

2、客户端

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public class ClientActivity extends AppCompatActivity {

    IImoocAidl iImoocAidl;

    private ServiceConnection mConn = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
            // 拿到了远程服务
            iImoocAidl = IImoocAidl.Stub.asInterface(iBinder);
        }

        @Override
        public void onServiceDisconnected(ComponentName componentName) {
            // 回收资源
            iImoocAidl = null;
        }
    };

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

        bindService();

        findViewById(R.id.btn_click).setOnClickListener(view -> {
            try {
                List<Person> persons = iImoocAidl.add(new Person("李四", 18));
                Log.e("hehe", persons.toString());
            } catch (RemoteException e) {
                e.printStackTrace();
            }
        });
    }

    private void bindService() {
        // 获取服务端
        Intent intent = new Intent();
        intent.setComponent(new ComponentName("com.test.aidltest3",
                "com.test.aidltest3.IRemoteService"));
        bindService(intent, mConn, BIND_AUTO_CREATE);
    }


    @Override
    protected void onDestroy() {
        super.onDestroy();
        unbindService(mConn);
    }
}

布局文件：

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".ClientActivity">

    <Button
        android:id="@+id/btn_click"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="click"
        android:textAllCaps="false"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>