android-service4

最新推荐文章于 2022-07-13 19:04:31 发布

原创最新推荐文章于 2022-07-13 19:04:31 发布 · 371 阅读

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本文介绍如何使用 Android Interface Definition Language (AIDL) 创建接口实现跨进程通信。包括 AIDL 文件定义、Service 的创建与绑定，以及客户端如何通过 AIDL 接口调用 Service 提供的方法。

一.创建： aidl文件

package com.example.administrator.servicetest.aidl;

// Declare any non-default types here with import statements

 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 getData();
     int getNumber();
}

二.创建service

public class MyService_iadl extends Service{

    private   MyIADL myIADL=new MyIADL();
    public MyService_iadl() {
    }

    @Override
    public IBinder onBind(Intent intent) {
        // TODO: Return the communication channel to the service.
        return myIADL;//throw new UnsupportedOperationException("Not yet implemented");
    }
    public class  MyIADL extends IMyAidlInterface.Stub
    {
        @Override
        public void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, String aString) throws RemoteException {

        }

        @Override
        public String getData() throws RemoteException {
            return "OK";
        }

        @Override
        public int getNumber() throws RemoteException {
            return 111;
        }
    }
}
配置service
<service
    android:name=".Service.MyService_iadl"
    android:enabled="true"
    android:exported="true">
    <intent-filter>
        <action android:name="android.intent.action.iadl"/>
    </intent-filter>
</service>

三.调用service
通过  IMyAidlInterface  接口就可以调用了实现跨进程通信
public class Service_AIDL_Fragment extends Fragment implements View.OnClickListener {
IMyAidlInterface  myIADL=null;
 connection=new ServiceConnection() {
    @Override
    public void onServiceConnected(ComponentName name, IBinder service) {
        myIADL= IMyAidlInterface .Stub.asInterface(service);
    }

    @Override
    public void onServiceDisconnected(ComponentName name) {

    }
};
开始service
Intent intent=new Intent();
intent.setAction("android.intent.action.iadl");
intent.setPackage(context.getPackageName());
context.bindService(intent,connection, Service.BIND_AUTO_CREATE);

注销service
context.unbindService(connection);

获取数据：
String str=  myIADL.getData();

}