九 AIDL

AIDL=Android Interface definition language

使用情况：做一个下载，不想让你的下载拖垮你的应用；播放器；ADK；

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目的

=Aidl接口+service+activity

=提供接口+输入信息+接收信息

aidl作用

=提供接口

声明

=另开进程

Service作用

=调用 AidlInterface.Stub+引用接口输入信息+返回（onBind,stub）

Activity作用

=绑定service+得到信息

步骤：

1、自动生成

(1)aidl文件夹   main-aidl

(2)自动创建AIDL       main-aidl-包-AIDL(右键创建)

(3)自动生成相关代码    app-build-generated-source-aidl-debug-点运行

会得到Interface

2、加入接口

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3、输入信息  service

(1)创建aidl包    java-大包-aidl包

(2)创建AIDLService

①继承

②绑定

③ 调用 Interface

④调用接口，放入信息

⑤声明另开进程

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4、接收信息 activity

得到信息

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interface IMyAidlInterface {/**     * Demonstrates some basic types that you can use as parameters     * and return values in AIDL.     */void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat,double aDouble, String aString);

String getName(String nickName);}

声明进程

<serviceandroid:name=".aidl.AIDLService"android:process="com.aidl.test.service"android:enabled="true"android:exported="true"></service>

service

import android.app.Service;import android.content.Intent;import android.os.IBinder;import android.os.RemoteException;import android.support.annotation.Nullable;

import com.syz.lianxi.IMyAidlInterface;

public class AIDLService extends Service {

IMyAidlInterface.Stub mStub = new IMyAidlInterface.Stub(){

        @Overridepublic void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, String aString) throws RemoteException {

        }

        @Overridepublic String getName(String nickName) throws RemoteException {return nickName + "aidl_hahaha";}    };

@Nullable    @Overridepublic IBinder onBind(Intent intent) {return mStub;}}

activity

import android.app.Activity;import android.content.ComponentName;import android.content.Context;import android.content.Intent;import android.content.ServiceConnection;import android.os.Bundle;import android.os.IBinder;import android.os.RemoteException;import android.view.View;import android.widget.Toast;

import com.syz.lianxi.IMyAidlInterface;import com.syz.lianxi.R;

public class AIDLActivity extends Activity {

ServiceConnectionmServiceConnection = new ServiceConnection() {        @Overridepublic void onServiceConnected(ComponentName name, IBinder service) {            mIMyAidlInterface = IMyAidlInterface.Stub.asInterface(service);}

        @Overridepublic void onServiceDisconnected(ComponentName name) {

        }    };

    private IMyAidlInterface mIMyAidlInterface;

@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);

setContentView(R.layout.activity_aidl);

findViewById(R.id.button_aidl).setOnClickListener(new View.OnClickListener() {            @Overridepublic void onClick(View v) {if(mIMyAidlInterface!=null){try {                        String name = mIMyAidlInterface.getName("nick_know_maco");Toast.makeText(AIDLActivity.this, name + "", Toast.LENGTH_LONG).show();} catch (RemoteException e) {                        e.printStackTrace();}                }            }        });

bindService(new Intent(this, AIDLService.class), mServiceConnection, Context.BIND_AUTO_CREATE);}

}

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如何使用插件，自动生成接口？

import android.os.Parcel;import android.os.Parcelable;

public class Person implements Parcelable {

    String mName;    int mAge;String mAvatarUrl;

    public String getName() {return mName;}

public void setName(String name) {        mName = name;}

public int getAge() {return mAge;}

public void setAge(int age) {        mAge = age;}

public String getAvatarUrl() {return mAvatarUrl;}

public void setAvatarUrl(String avatarUrl) {        mAvatarUrl = avatarUrl;}

    @Overridepublic int describeContents() {return 0;}

    @Overridepublic void writeToParcel(Parcel dest, int flags) {        dest.writeString(this.mName);dest.writeInt(this.mAge);dest.writeString(this.mAvatarUrl);}

public Person() {    }

protected Person(Parcel in) {this.mName = in.readString();        this.mAge = in.readInt();        this.mAvatarUrl = in.readString();}

public static final Parcelable.Creator<Person> CREATOR = new Parcelable.Creator<Person>() {public Person createFromParcel(Parcel source) {return new Person(source);}

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