android u盘两种方式使用（广播和挂载）

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;
}

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;
}
}

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);

}
});

<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>