android通过通过usb读取读取U盘的方法盘的方法
主要为大家详细介绍了android通过usb读取U盘的方法,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
本文实例为大家分享了android通过usb读取U盘的具体代码,供大家参考,具体内容如下
1.关联 compile ‘com.github.mjdev:libaums:+'
2.权限设置
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.hardware.usb.host" android:required="false" />
<uses-feature android:name="android.hardware.usb.host" android:required="true" />
3.监听u盘 插入拔出的广播
//监听otg插入 拔出
IntentFilter usbDeviceStateFilter = new IntentFilter();
usbDeviceStateFilter.addAction(UsbManager.ACTION_USB_DEVICE_ATTACHED);
usbDeviceStateFilter.addAction(UsbManager.ACTION_USB_DEVICE_DETACHED);
mContext.registerReceiver(UDiskMountedReceiver, usbDeviceStateFilter);
//注册监听自定义广播
IntentFilter filter = new IntentFilter(Constant.ACTION_USB_PERMISSION);
mContext.registerReceiver(UDiskMountedReceiver, filter);
4.代码
package com.zb.usbtest;
/**
* @项目名: UsbTest
* @包名: com.zb.usbtest
* @文件名: ReadUDisk
* @创建者: 25934
* @创建时间: 2018-07-24 13:50
* @描述: TODO
*/
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.hardware.usb.UsbManager;
import android.util.Log;
import com.github.mjdev.libaums.UsbMassStorageDevice;
import com.github.mjdev.libaums.fs.FileSystem;
import com.github.mjdev.libaums.fs.UsbFile;
import com.github.mjdev.libaums.partition.Partition;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import static com.zb.usbtest.Constant.ACTION_USB_PERMISSION;
public class ReadUDisk {
private UDiskCallBack.OnUDiskCallBack mOnUDiskCallBack = null;
private Context mContext;
private UsbMassStorageDevice[] storageDevices;
private List<UsbFile> usbFiles = new ArrayList<>();
private final UsbManager mUsbManager;
public ReadUDisk(Context context) {
mContext = context;
mUsbManager = (UsbManager) mContext.getSystemService(Context.USB_SERVICE);
}
/**
* 接受U盘插入和拔出事件
* @param onUDiskCallBack
*/
public void setOnUDiskCallBack(UDiskCallBack.OnUDiskCallBack onUDiskCallBack) {
if (mOnUDiskCallBack == null) {
registerReceiver();
mOnUDiskCallBack = onUDiskCallBack;
}
}
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