Android AIDL：跨进程调用Service (AIDL Service)，android基础
*/
package com.zhuanghongji.startservicefromanotherapp;
// Declare any non-default types here with import statements
public interface IAppServiceRemoteBinder extends android.os.IInterface {
/**
- Local-side IPC implementation stub class.
*/
public static abstract class Stub extends android.os.Binder implements com.zhuanghongji.startservicefromanotherapp.IAppServiceRemoteBinder {
private static final java.lang.String DESCRIPTOR = “com.zhuanghongji.startservicefromanotherapp.IAppServiceRemoteBinder”;
/**
- Construct the stub at attach it to the interface.
*/
public Stub() {
this.attachInterface(this, DESCRIPTOR);
}
/**
-
Cast an IBinder object into an com.zhuanghongji.startservicefromanotherapp.IAppServiceRemoteBinder interface,
-
generating a proxy if needed.
*/
public static com.zhuanghongji.startservicefromanotherapp.IAppServiceRemoteBinder asInterface(android.os.IBinder obj) {
if ((obj == null)) {
return null;
}
android.os.IInterface iin = obj.queryLocalInterface(DESCRIPTOR);
if (((iin != null) && (iin instanceof com.zhuanghongji.startservicefromanotherapp.IAppServiceRemoteBinder))) {
return ((com.zhuanghongji.startservicefromanotherapp.IAppServiceRemoteBinder) iin);
}
return new com.zhuanghongji.startservicefromanotherapp.IAppServiceRemoteBinder.Stub.Proxy(obj);
}
@Override
public android.os.IBinder asBinder() {
return this;
}
@Override
public boolean onTransact(int code, android.os.Parcel data, android.os.Parcel reply, int flags) throws android.os.RemoteException {
switch (code) {
case INTERFACE_TRANSACTION: {
reply.writeString(DESCRIPTOR);
return true;
}
case TRANSACTION_basicTypes: {
data.enforceInterface(DESCRIPTOR);
int _arg0;
_arg0 = data.readInt();
long _arg1;
_arg1 = data.readLong();
boolean _arg2;
_arg2 = (0 != data.readInt());
float _arg3;
_arg3 = data.readFloat();
double _arg4;
_arg4 = data.readDouble();
java.lang.String _arg5;
_arg5 = data.readString();
this.basicTypes(_arg0, _arg1, _arg2, _arg3, _arg4, _arg5);
reply.writeNoException();
return true;
}
}
return super.onTransact(code, data, reply, flags);
}
private static class Proxy implements com.zhuanghongji.startservicefromanotherapp.IAppServiceRemoteBinder {
private android.os.IBinder mRemote;
Proxy(android.os.IBinder remote) {
mRemote = remote;
}
@Override
public android.os.IBinder asBinder() {
return mRemote;
}
public java.lang.String getInterfaceDescriptor() {
return DESCRIPTOR;
}
/**
-
Demonstrates some basic types that you can use as parameters
-
and return values in AIDL.
*/
@Override
public void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, java.lang.String aString) 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.writeInt(anInt);
_data.writeLong(aLong);
_data.writeInt(((aBoolean) ? (1) : (0)));
_data.writeFloat(aFloat);
_data.writeDouble(aDouble);
_data.writeString(aString);
mRemote.transact(Stub.TRANSACTION_basicTypes, _data, _reply, 0);
_reply.readException();
} finally {
_reply.recycle();
_data.recycle();
}
}
}
static final int TRANSACTION_basicTypes = (android.os.IBinder.FIRST_CALL_TRANSACTION + 0);
}
/**
-
Demonstrates some basic types that you can use as parameters
-
and return values in AIDL.
*/
public void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, java.lang.String aString) throws android.os.RemoteException;
}
/*
Stub对象是在被调用端进程，也就是服务端进程
*/
在Service中重写onBind()方法：
@Override
public IBinder onBind(Intent intent) {
return new IAppServiceRemoteBinder.Stub() {
@Override
public void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, String aString) throws RemoteException {
// …
}
};
}
这时重写AnotherApp中的MainActivity：
public class MainActivity extends AppCompatActivity implements OnClickListener, ServiceConnection {
private Intent mServiceIntent;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.btn_start_Service).setOnClickListener(this);
findViewById(R.id.btn_stop_Service).setOnClickListener(this);
findViewById(R.id.btn_bind_Service).setOnClickListener(this);
findViewById(R.id.btn_unbind_Service).setOnClickListener(this);
mServiceIntent = new Intent();
mServiceIntent.setComponent(new ComponentName(“com.zhuanghongji.startservicefromanotherapp”,
“com.zhuanghongji.startservicefromanotherapp.AppService”));
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_start_Service:
startService(mServiceIntent);
break;
case R.id.btn_stop_Service:
stopService(mServiceIntent);
break;
case R.id.btn_bind_Service:
bindService(mServiceIntent, this, Context.BIND_AUTO_CREATE);
break;
case R.id.btn_unbind_Service:
unbindService(this);
break;
}
}
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
Log.i(“TAG”, "Bind Service : " + service);
}
@Override
public void onServiceDisconnected(ComponentName name) {
}
}
重新安装后，点击“绑定外部服务”
会看到如下日志：
四、跨应用绑定Service并通信
-
在app 中的IAppServiceRemoteBinder增加接口方法：
void setData(String data); -
复制该文件的包名
com.zhuanghongji.startservicefromanotherapp -
在AnotherApp中新建一个
AIDL Folder，再在里面新建一个包(包名是刚才复制的包名，否则会编译错误)。 -
将
IAppServiceRemoteBinder.aidl文件整个复制到刚才新建的包下。
// IAppServiceRemoteBinder.aidl
package com.zhuanghongji.startservicefromanotherapp;
// Declare any non-default types here with import statements
interface IAppServiceRemoteBinder {
/**
-
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);
void setData(String data);
}
Build -> ReBuild Project 后在AppService中的onBind(Intent intent)中实现void setData(String data);
package com.zhuanghongji.startservicefromanotherapp;
public class AppService extends Service {
private String mData = “默认数据”;
private boolean isRunning = false;
public AppService() {
}
@Override
public void onCreate() {
super.onCreate();
Log.i(“TAG”, “AppService onCreate”);
new Thread(new Runnable() {
@Override
public void run() {
isRunning = true;
while (isRunning) {
Log.i(“TAG”, mData);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();
}
文末
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