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.systemui.usb; 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.UsbAccessory; 25 import android.hardware.usb.UsbDevice; 26 import android.hardware.usb.UsbManager; 27 28 // This class is used to close UsbPermissionsActivity and UsbResolverActivity 29 // if their device/accessory is disconnected while the dialog is still open 30 class UsbDisconnectedReceiver extends BroadcastReceiver { 31 private final Activity mActivity; 32 private UsbDevice mDevice; 33 private UsbAccessory mAccessory; 34 UsbDisconnectedReceiver(Activity activity, UsbDevice device)35 public UsbDisconnectedReceiver(Activity activity, UsbDevice device) { 36 mActivity = activity; 37 mDevice = device; 38 39 IntentFilter filter = new IntentFilter(UsbManager.ACTION_USB_DEVICE_DETACHED); 40 activity.registerReceiver(this, filter); 41 } 42 UsbDisconnectedReceiver(Activity activity, UsbAccessory accessory)43 public UsbDisconnectedReceiver(Activity activity, UsbAccessory accessory) { 44 mActivity = activity; 45 mAccessory = accessory; 46 47 IntentFilter filter = new IntentFilter(UsbManager.ACTION_USB_ACCESSORY_DETACHED); 48 activity.registerReceiver(this, filter); 49 } 50 51 @Override onReceive(Context context, Intent intent)52 public void onReceive(Context context, Intent intent) { 53 String action = intent.getAction(); 54 if (UsbManager.ACTION_USB_DEVICE_DETACHED.equals(action)) { 55 UsbDevice device = (UsbDevice)intent.getParcelableExtra(UsbManager.EXTRA_DEVICE); 56 if (device != null && device.equals(mDevice)) { 57 mActivity.finish(); 58 } 59 } else if (UsbManager.ACTION_USB_ACCESSORY_DETACHED.equals(action)) { 60 UsbAccessory accessory = 61 (UsbAccessory)intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY); 62 if (accessory != null && accessory.equals(mAccessory)) { 63 mActivity.finish(); 64 } 65 } 66 } 67 }