Android AIDL实现两个APP间的跨进程通信实例

本文为大家分享了Android AIDL实现两个APP间的跨进程通信实例，供大家参考，具体内容如下

1 Service端创建

首先需要创建一个Android工程然后创建AIDL文件，创建AIDL文件主要为了生成继承了Binder的Stub类，以便应用Binder进行进程间通信

servier端结构如下

AIDL代码如下

// IBookManager.aidl
package com.example.bookserver.aidl;

// Declare any non-default types here with import statements
import com.example.bookserver.aidl.Book;
interface IBookManager {
/**
 * 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);

List<Book> getBook();
boolean addBook(in Book book);

}

package com.example.bookserver.aidl;

parcelable Book;

之后创建一个实现了Parcelable的Book.java类用来传递数据

package com.example.bookserver.aidl;

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

/**
* Created by SAMSUNG on 2016-09-07.
*/
public class Book implements Parcelable {
private int id;
private String name ;

public int getId() {
 return id;
}

public void setId(int id) {
 this.id = id;
}

public String getName() {
 return name;
}

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

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

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

@Override
public void writeToParcel(Parcel dest, int flags) {
 dest.writeInt(this.id);
 dest.writeString(this.name);
}

public Book() {
}

protected Book(Parcel in) {
 this.id = in.readInt();
 this.name = in.readString();
}

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

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

最后我们来写一个Service用于客户端绑定

package com.example.bookserver.service;

import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.os.RemoteException;

import com.example.bookserver.aidl.Book;
import com.example.bookserver.aidl.IBookManager;

import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

public class BookService extends Service {
private CopyOnWriteArrayList<Book> boookList = new CopyOnWriteArrayList<Book>();
public BookService() {

}
Binder binder = new IBookManager.Stub(){

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

}

@Override
 public List<Book> getBook() throws RemoteException {
  return boookList;
 }

@Override
 public boolean addBook(Book book) throws RemoteException {
  return boookList.add(book);
 }
};
@Override
public IBinder onBind(Intent intent) {
 return binder;
}

@Override
public void onCreate() {
 super.onCreate();
 Book book = new Book();
 book.setId(12345);
 book.setName("Book 1");
 boookList.add(book);
}
}

这样Server端就搞定了，接下来就该进行Client端的代码编写了

2 Client端

Client端结构如下

首先我们要讲AndroidStudio 通过AIDL生成的Binder导入到Client中并将Book.java也导入到Client中
然后写进行Service的绑定

package com.example.bookclient;

import android.app.Service;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.IBinder;
import android.util.Log;

import com.example.bookserver.aidl.IBookManager;

import java.util.List;

/**
* Created by SAMSUNG on 2016-09-07.
*/
public class BookServiceManager {
Context mContext = null;
IBookManager mService = null;
private static BookServiceManager bsm ;
public static BookServiceManager getInstance(Context context){
 if(bsm==null){
  bsm = new BookServiceManager(context);
 }
 return bsm;
}
public IBookManager getBookServie(){
 while (mService==null){
  Log.d("BookServiceManager", "getBookServie: ");
  this.connectService();

}
 return mService;
}

public BookServiceManager(Context mContext) {
 this.mContext = mContext;
}

ServiceConnection scc = new ServiceConnection() {
 @Override
 public void onServiceConnected(ComponentName name, IBinder service) {
  Log.d("BookServiceManager", "getBookServie: 2 ==> Bind ");
  mService = IBookManager.Stub.asInterface(service);
 }

@Override
 public void onServiceDisconnected(ComponentName name) {
  mService = null;
 }
};
public boolean connectService(){
 if(mService == null){
  Log.d("BookServiceManager", "getBookServie: 2");
  Intent intent = new Intent("com.example.bookserver.service.BookService");
  final Intent eintent = new Intent(createExplicitFromImplicitIntent(mContext,intent));
  mContext.bindService(eintent,scc, Service.BIND_AUTO_CREATE);
 }
 return true;
}

public static Intent createExplicitFromImplicitIntent(Context context, Intent implicitIntent) {
 // Retrieve all services that can match the given intent
 PackageManager pm = context.getPackageManager();
 List<ResolveInfo> resolveInfo = pm.queryIntentServices(implicitIntent, 0);

// Make sure only one match was found
 if (resolveInfo == null || resolveInfo.size() != 1) {
  return null;
 }

// Get component info and create ComponentName
 ResolveInfo serviceInfo = resolveInfo.get(0);
 String packageName = serviceInfo.serviceInfo.packageName;
 String className = serviceInfo.serviceInfo.name;
 ComponentName component = new ComponentName(packageName, className);

// Create a new intent. Use the old one for extras and such reuse
 Intent explicitIntent = new Intent(implicitIntent);

// Set the component to be explicit
 explicitIntent.setComponent(component);

return explicitIntent;
}
}

最后对设置Button进行调用

package com.example.bookclient;

import android.os.Bundle;
import android.os.RemoteException;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;

import com.example.bookserver.aidl.Book;
import com.example.bookserver.aidl.IBookManager;

public class MainActivity extends AppCompatActivity {
IBookManager mBookService ;
@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 Button button = (Button) findViewById(R.id.button);
 Button addButton = (Button) findViewById(R.id.button3);
 Button findButton = (Button) findViewById(R.id.button2);
 BookServiceManager.getInstance(getApplication()).connectService();
 button.setOnClickListener(new View.OnClickListener(){

@Override
  public void onClick(View v) {

mBookService = BookServiceManager.getInstance(getApplication()).getBookServie();

}
 });

addButton.setOnClickListener(new View.OnClickListener(){

@Override
  public void onClick(View v) {
   Book book = new Book();
   book.setId(2345);
   book.setName("add book!!");
   try {
    mBookService.addBook(book);
   } catch (RemoteException e) {
    e.printStackTrace();
   }

}
 });

findButton.setOnClickListener(new View.OnClickListener(){

@Override
  public void onClick(View v) {

try {
     Log.d("MainActivity", mBookService.getBook().toString());
   } catch (RemoteException e) {
    e.printStackTrace();
   }

}
 });
}
}

这样我们就实现了AIDL的不同APP的调用。

来源：https://blog.csdn.net/baidu_31405631/article/details/52469093