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.receiverimport android.app.Service
import android.content.Intent
import android.graphics.Bitmap
import android.os.IBinder
import android.util.Logclass 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===========$aBoolean")}override fun setPower(power: MutableList<String>?) {Log.e("TAG","setPower===========${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<String> {Log.e("TAG","getName()===========")val arrayEmpty = emptyArray<String>()return arrayEmpty}override fun getPath(): Array<String> {Log.e("TAG","getPath()===========")val arrayEmpty = emptyArray<String>()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

 <serviceandroid:name=".MyService"android:exported="true"><intent-filter><action android:name="com.howfor.receiver.service.ReceiverService" /></intent-filter></service>

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.aidlkhuteimport 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.AppCompatActivityimport com.howfor.receiver.IReceiverAidlclass MainActivity : AppCompatActivity() {var mIReceiverAidl: IReceiverAidl? = nullvar 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<Button>(R.id.test).setOnClickListener {if (mIReceiverAidl != null) {try {mIReceiverAidl!!.reboot()} catch (e: RemoteException) {Log.e("TAG", "e=========${e.message}")}} else {Log.e("TAG", "mIReceiverAidl====null")}}findViewById<Button>(R.id.test1).setOnClickListener {if (mIReceiverAidl != null) {try {mIReceiverAidl!!.shutdown()} catch (e: RemoteException) {Log.e("TAG", "e=========${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