安卓使用android studio跨进程通信之AIDL

我写这篇文章不想从最基础的介绍开始,我直接上步骤吧.

1.创建服务端

1.1:创建服务端项目:我的as版本比较高,页面就是这样的

1.2:创建AIDL文件,右键项目,选中aidl

 aidl名字可以自定义也可以默认

basicTypes是自带的,可以删掉,也可以不删,然后把你自己所需的接口写上去

 1.3:创建aidl调用的service:

1.4:根据aidl生成java文件供service调用:点击Rebuild Project等待完成

这个就是生成的java文件

1.5:编辑service,实现aidl的接口:如果没有生成java的话,会找不到IReceiverAidl

package com.howfor.receiver

import android.app.Service
import android.content.Intent
import android.graphics.Bitmap
import android.os.IBinder
import android.util.Log


class MyService : Service() {

    var catBinder = object: IReceiverAidl.Stub() {
        override fun basicTypes(
            anInt: Int,
            aLong: Long,
            aBoolean: Boolean,
            aFloat: Float,
            aDouble: Double,
            aString: String?
        ) {
            Log.e("TAG","basicTypessetTime===========anInt")
        }

        override fun setTime(time: Long) {
            Log.e("TAG","setTime===========$time")
        }

        override fun reboot() {
            Log.e("TAG","reboot===========")
            adwApi!!.Reboot()
        }

        override fun shutdown() {
            Log.e("TAG","shutdown===========")
            adwApi!!.ShutDown()
        }

        override fun install(fullPath: String?) {
            Log.e("TAG","install===========$fullPath")
        }

        override fun beat(aBoolean: Boolean) {
            Log.e("TAG","beat===========$aBoolean")
        }

        override fun setPower(power: MutableList?) {
            Log.e("TAG","setPower===========${power!!.size}")
        }

        override fun updateFirmware(localFile: String?) {
            Log.e("TAG","updateFirmware===========${localFile}")
        }

        override fun getDeviceId(): String {
            Log.e("TAG","getDeviceId===========")
            return ""
        }

        override fun getName(): Array {
            Log.e("TAG","getName()===========")
            val arrayEmpty = emptyArray()
            return arrayEmpty
        }

        override fun getPath(): Array {
            Log.e("TAG","getPath()===========")
            val arrayEmpty = emptyArray()
            return arrayEmpty
        }

        override fun shouldClean(path: String?): Boolean {
            Log.e("TAG","shouldClean()===========")
            return true
        }

        override fun getBitmap(): Bitmap {
            Log.e("TAG","getBitmap()===========")
            var bitmap  = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888)
            return bitmap
        }

        override fun getVersion(): String {
            Log.e("TAG","getVersion()===========")
            return ""
        }
    }


    override fun onBind(intent: Intent): IBinder {
        return catBinder
    }
}

1.6:设置service的属性:name会在客户端绑定使用到,所以我们会先自定义一个,不需要跟着你的Myservice一样

2.客户端使用:

2.1:创建客户端项目

2.2:复制服务端的aidl到客户端中:必须一模一样的,建议直接复制粘贴

2.3:生成java文件,与服务端1.4一样的步骤:

2.4:使用aidl并且绑定服务端的service:这里的com.howfor.receiver.service.ReceiverService就是1.6设置的属性,包名就是服务端的包名:

package com.example.aidlkhute

import android.annotation.SuppressLint
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.util.Log
import android.widget.Button
import androidx.appcompat.app.AppCompatActivity

import com.howfor.receiver.IReceiverAidl

class MainActivity : AppCompatActivity() {

    var mIReceiverAidl: IReceiverAidl? = null

    var mConnections = object : ServiceConnection {
        override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
            Log.e("TAG", "onServiceConnected")
            //注释3：
            mIReceiverAidl = IReceiverAidl.Stub.asInterface(service)
        }

        override fun onServiceDisconnected(name: ComponentName?) {
            Log.e("TAG", "onServiceDisconnected")
             mIReceiverAidl = null
        }
    }

    @SuppressLint("MissingInflatedId")
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val intent = Intent()
        intent.setPackage("com.howfor.receiver")
        intent.action = "com.howfor.receiver.service.ReceiverService"
        try {
            var se = bindService(intent, mConnections, Context.BIND_AUTO_CREATE)
            Log.e("TAG", "se=========$se")
        } catch (e: RemoteException) {
            Log.e("TAG", "e=========${e.message}")
        }

    }

    override fun onDestroy() {
        super.onDestroy()
        unbindService(mConnections)
    }
}

添加两个按钮使用里面的接口 

findViewById(R.id.test).setOnClickListener {
            if (mIReceiverAidl != null) {
                try {
                    mIReceiverAidl!!.reboot()
                } catch (e: RemoteException) {
                    Log.e("TAG", "e=========${e.message}")
                }
            } else {
                Log.e("TAG", "mIReceiverAidl====null")
            }
        }

        findViewById(R.id.test1).setOnClickListener {
            if (mIReceiverAidl != null) {
                try {
                    mIReceiverAidl!!.shutdown()
                } catch (e: RemoteException) {
                    Log.e("TAG", "e=========${e.message}")
                }
            } else {
                Log.e("TAG", "mIReceiverAidl====null")
            }
        }

先运行服务端,可以不用做任何操作,然后再运行客户端,点击对应的接口,就会打印出对应的log:

se=========true    //代表服务绑定成功
reboot===========    //点击第一个按钮打印
shutdown===========  //点击第二个按钮打印

 还有个小问题:在高版本(targetSdk 33)上会出现绑定失败的情况,然后查看了一下,在安卓11以上,google对系统做了一些操作,具体的可以自行百度:解决方案,在客户端添加红框中的内容即可