1 /*
2  * Copyright (C) 2010 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.camerabrowser;
18 
19 import android.app.Activity;
20 import android.content.BroadcastReceiver;
21 import android.content.Context;
22 import android.content.Intent;
23 import android.content.IntentFilter;
24 import android.hardware.usb.UsbDevice;
25 import android.hardware.usb.UsbManager;
26 import android.util.Log;
27 
28 public class DeviceDisconnectedReceiver extends BroadcastReceiver {
29 
30     private static final String TAG = "DeviceDisconnectedReceiver";
31 
32     private final Activity mActivity;
33     private final String mDeviceName;
34 
DeviceDisconnectedReceiver(Activity activity, String deviceName)35     public DeviceDisconnectedReceiver(Activity activity, String deviceName) {
36         mActivity = activity;
37         mDeviceName = deviceName;
38 
39         IntentFilter filter = new IntentFilter(UsbManager.ACTION_USB_DEVICE_DETACHED);
40         activity.registerReceiver(this, filter);
41     }
42 
43     @Override
onReceive(Context context, Intent intent)44     public void onReceive(Context context, Intent intent) {
45         UsbDevice device = (UsbDevice)intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
46         String deviceName = device.getDeviceName();
47         Log.d(TAG, "ACTION_USB_DEVICE_DETACHED " + deviceName);
48 
49         // close our activity if the device it is displaying is disconnected
50         if (deviceName.equals(mDeviceName)) {
51             mActivity.finish();
52         }
53     }
54 }