android u盘两种方式使用（广播和挂载）

该资料通过网上资料总结：

1.通过检测

String path = "/storage/uhost2";boolean mounted = isMounted(path);

private static final String MOUNTS_FILE = "/proc/mounts";public static boolean isMounted(String path) {    boolean blnRet = false;    String strLine = null;    BufferedReader reader = null;    try {        reader = new BufferedReader(new FileReader(MOUNTS_FILE));        while ((strLine = reader.readLine()) != null) {            if (strLine.contains(path)) {                blnRet = true;                break;            }        }    } catch (Exception e) {        e.printStackTrace();    } finally {        if (reader != null) {            try {                reader.close();            } catch (IOException e) {                e.printStackTrace();            }            reader = null;        }    }    return blnRet;}

2.通过广播方式检测

广播方面

package com.wuyue.horld;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.text.TextUtils;import android.util.Log;import android.widget.Toast;import java.io.File;public class USBReceiver extends BroadcastReceiver {    private static final String TAG = USBReceiver.class.getSimpleName();    private BRInteraction brInteraction;    @Override    public void onReceive(Context context, Intent intent) {        String action = intent.getAction();        if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) {            String mountPath = intent.getData().getPath();            Log.d(TAG, "mountPath = " + mountPath);            if (!TextUtils.isEmpty(mountPath)) {                //读取到U盘路径再做其他业务逻辑                //发送广播                File file = new File(mountPath + "/" + "111.zip");                if (file.exists()) {                    file.delete();                }                File file1 = new File(mountPath + "/" + "FINGER_MARKS/");                if (file1.exists()) {                    file1.delete();                }                try {                    ZipUtil.zipFolder("data/data/" + context.getPackageName() + "/" + "FINGER_MARKS/", mountPath + "/" + "111.zip");                    Toast.makeText(context, "压缩成功", Toast.LENGTH_SHORT).show();                } catch (Exception e) {                    e.printStackTrace();                }            }        } else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED) || action.equals(Intent.ACTION_MEDIA_EJECT)) {            Toast.makeText(context, "No services information detected !", Toast.LENGTH_SHORT).show();        } else if (action.equals("android.intent.action.BOOT_COMPLETED")) {            //如果是开机完成，则需要调用另外的方法获取U盘的路径            Toast.makeText(context, "请重新插入u盘", Toast.LENGTH_SHORT).show();        } else {            Toast.makeText(context, "请重新插入u盘", Toast.LENGTH_SHORT).show();        }    }    public interface BRInteraction {        public void setText(String content);    }    public void setBRInteractionListener(BRInteraction brInteraction) {        this.brInteraction = brInteraction;    }}

界面

btzip.setOnClickListener(new View.OnClickListener() {    @Override    public void onClick(View v) {        //方式1   通过广播的形式进行zip到指定u盘         intentFilter = new IntentFilter();      intentFilter.addAction(UsbManager.ACTION_USB_ACCESSORY_ATTACHED);        intentFilter.addAction(UsbManager.ACTION_USB_ACCESSORY_DETACHED);        intentFilter.addAction(UsbManager.ACTION_USB_DEVICE_ATTACHED);        intentFilter.addAction(UsbManager.ACTION_USB_DEVICE_DETACHED);        receiver = new USBReceiver();        registerReceiver(receiver, intentFilter);        }});

广播清单文件

<receiver android:name="com.wuyue.horld.USBReceiver">    <intent-filter>        <action android:name="android.intent.action.BOOT_COMPLETED" />        <action android:name="android.intent.action.MEDIA_REMOVED" />        <action android:name="android.intent.action.MEDIA_MOUNTED" />        <action android:name="android.intent.action.MEDIA_REMOVED" />        <action android:name="android.intent.action.MEDIA_REMOVED" />        <data android:scheme="file"></data>    </intent-filter></receiver>

3 linux 得到u盘信息

https://github.com/alt236/USB-Device-Info---Android