让我们看一个基本的示例,演示如何通过 USB 与 Socket 通信。 1. 在 Android 设备中设置 USB Listener importandroid.hardware.usb.UsbAccessory;importandroid.hardware.usb.UsbManager;importandroid.content.Context;importandroid.content.Intent;importandroid.widget.Toast;publicclassUsbListener{privateUsbManagerusbManage...
Android USB 通信(Socket 详解) 前言: 昨个帮同事忙, 应下了一个Android Android Code 首先是清单文件中的权限: 代码语言:javascript 代码运行次数:0 <uses-permission android:name="android.hardware.usb.host"/><uses-permission android:name="android.hardware.usb.accessory"/><uses-permission android:name="...
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首先是清单文件中的权限: AI检测代码解析 <uses-permission android:name="android.hardware.usb.host" /> <uses-permission android:name="android.hardware.usb.accessory" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> // 第一个与第二个是必要的, 第三个由于此项目需要,...
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其中,应用层程序通过安卓Framework层获得UsbManager代理对象,经过授权后拿到FileDescriptor,此时Framework 层会通过UsbDeviceManager打开 "/dev/usb_accessory" 并获取必要的描述信息,以供附件匹配,在确认匹配和授权后,应用层即可进行IO操作。 4.2.1 设备模式说明 安卓从3.1版本开始支持USB配件和主机两种模式,两种模式的示...