AIDL简单示例

A应用

（一）新建AIDL文件

interface AidlInterface {
    /**
     * Demonstrates some basic types that you can use as parameters
     * and return values in AIDL.
     */
    String getName();
}

（二）新建服务

class AidlService : Service() {
    override fun onBind(intent: Intent?): IBinder? {
        return object : AidlInterface.Stub() {
            override fun getName(): String {
                return "文川雪"
            }
        }
    }
}

（三）注册服务

<service android:name=".AidlService">
            <intent-filter>
                <action android:name="guozengjie" />
            </intent-filter>
 </service>

B应用

（一）复制AIDL文件
将A应用的AIDL文件以及所在的文件夹复制到B应用，包名一样
（二）绑定服务

 bindService(Intent().apply {
            `package` = "club.guozengjie.jetpack"
            action = "guozengjie"
        }, object : ServiceConnection {
            override fun onServiceDisconnected(name: ComponentName?) {
            }

            override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
                val aidlInterface = AidlInterface.Stub.asInterface(service)
                Toast.makeText(this@MainActivity, aidlInterface.name, Toast.LENGTH_LONG).show()
            }
        }, BIND_AUTO_CREATE)