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.UsbManager; 26 27 // This class is used to close UsbPermissionsActivity and UsbResolverActivity 28 // if their accessory is disconnected while the dialog is still open 29 class UsbDisconnectedReceiver extends BroadcastReceiver { 30 private final Activity mActivity; 31 private UsbAccessory mAccessory; 32 33 public UsbDisconnectedReceiver(Activity activity, UsbAccessory accessory) { 34 mActivity = activity; 35 mAccessory = accessory; 36 37 IntentFilter filter = new IntentFilter(UsbManager.ACTION_USB_ACCESSORY_DETACHED); 38 activity.registerReceiver(this, filter); 39 } 40 41 @Override 42 public void onReceive(Context context, Intent intent) { 43 String action = intent.getAction(); 44 if (UsbManager.ACTION_USB_ACCESSORY_DETACHED.equals(action)) { 45 UsbAccessory accessory = 46 (UsbAccessory)intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY); 47 if (accessory != null && accessory.equals(mAccessory)) { 48 mActivity.finish(); 49 } 50 } 51 } 52 }
