【移動應用開發(fā)技術】Android跨進程IPC通信AIDL機制原理的示例分析

【移動應用開發(fā)技術】Android跨進程IPC通信AIDL機制原理的示例分析

簡介使用場景定義AIDL接口/upload/information/20200623/125/124589.png定義.aidl文件定義AIDL接口時需要注意如下：package

com.sunny.server;

import

com.sunny.server.bean.User;

interface

IRemoteService

{

void

basicTypes(int

anInt,

long

aLong,

boolean

aBoolean,

float

aFloat,

double

aDouble,

String

aString);

String

getName();

void

setListData(in

List<String>

inList,out

List<String>

outList);

void

setMapData(in

Map

map);

void

setUser(in

User

user);

}package

com.sunny.server.bean;

parcelable

User;Service實現(xiàn)AIDL接口@Override

public

void

setListData(java.util.List<java.lang.String>

inList,

java.util.List<java.lang.String>

outList)

throws

android.os.RemoteException

{

android.os.Parcel

_data

=

android.os.Parcel.obtain();

android.os.Parcel

_reply

=

android.os.Parcel.obtain();

try

{

_data.writeInterfaceToken(DESCRIPTOR);

_data.writeStringList(inList);

mRemote.transact(Stub.TRANSACTION_setListData,

_data,

_reply,

0);

_reply.readException();

_reply.readStringList(outList);

}

finally

{

_reply.recycle();

_data.recycle();

}

}public

class

MyService

extends

Service

{

private

static

final

String

TAG

=

"AIDL_Server";

@Nullable

@Override

public

IBinder

onBind(Intent

intent)

{

return

mBinder;

}

private

IRemoteService.Stub

mBinder

=

new

IRemoteService.Stub()

{

@Override

public

void

basicTypes(int

anInt,

long

aLong,

boolean

aBoolean,

float

aFloat,

double

aDouble,

String

aString)

throws

RemoteException

{

Log.d(TAG,

"anInt:"

+

anInt

+

"

aLong:"

+

aLong

+

"

aBoolean:"

+

aBoolean

+

"

aFloat:"

+

aFloat

+

"

aDouble:"

+

aDouble

+

"

aString:"

+

aString);

}

@Override

public

String

getName()

throws

RemoteException

{

return

"admin";

}

@Override

public

void

setListData(List<String>

inList,

List<String>

outList)

throws

RemoteException

{

Log.d(TAG,

"inList:"

+

inList.toString());

setOutList(outList);

}

@Override

public

void

setMapData(Map

map)

throws

RemoteException

{

Log.d(TAG,

"map:"

+

map.toString());

}

@Override

public

void

setUser(User

user)

throws

RemoteException

{

Log.d(TAG,

"user:"

+

user.toString());

}

};

private

void

setOutList(List<String>

list)

{

list.add("out_01");

list.add("out_02");

list.add("out_03");

}

}調(diào)用IPC方法public

class

MainActivity

extends

AppCompatActivity

{

private

static

final

String

TAG

=

"AIDL_Client";

private

MyConnection

conn;

private

IRemoteService

service;

private

List<String>

outList=new

ArrayList<>();

@Override

protected

void

onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

}

public

void

startBind(View

v)

{

Intent

intent

=

new

Intent();

conn=new

MyConnection();

intent.setAction("com.sunny.server.service.MyService");

bindService(intent,

conn,

Context.BIND_AUTO_CREATE);

}

public

void

startExecute(View

v)

{

try

{

service.basicTypes(1,

10000L,

true,

1.5f,

300.3,

"Hello

World");

Log.d(TAG,

"getName:"

+

service.getName());

List<String>

inList

=

new

ArrayList<String>();

inList.add("inList01");

inList.add("inList02");

service.setListData(inList,

outList);

Log.d(TAG,

"outList:"

+

outList.toString());

Map<String,

String>

map

=

new

HashMap<String,

String>();

map.put("key01",

"value01");

map.put("key02",

"value02");

service.setMapData(map);

User

user

=

new

User();

user.setId(1001);

user.setName("admin");

service.setUser(user);

}

catch

(RemoteException

e)

{

e.printStackTrace();

}

}

private

class

MyConnection

implements

ServiceConnection

{

public

void

onServiceConnected(ComponentName

name,

IBinder

binder)

{

service

=

IRemoteService.Stu