| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.systemui.usb; |
| |
| import com.android.internal.app.ResolverActivity; |
| |
| import android.content.ActivityNotFoundException; |
| import android.content.Intent; |
| import android.content.pm.ResolveInfo; |
| import android.hardware.usb.IUsbManager; |
| import android.hardware.usb.UsbAccessory; |
| import android.hardware.usb.UsbManager; |
| import android.os.Bundle; |
| import android.os.IBinder; |
| import android.os.Parcelable; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.util.Log; |
| |
| import java.util.ArrayList; |
| |
| /* Activity for choosing an application for a USB device or accessory */ |
| public class UsbResolverActivity extends ResolverActivity { |
| public static final String TAG = "UsbResolverActivity"; |
| public static final String EXTRA_RESOLVE_INFOS = "rlist"; |
| |
| private UsbAccessory mAccessory; |
| private UsbDisconnectedReceiver mDisconnectedReceiver; |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| Intent intent = getIntent(); |
| Parcelable targetParcelable = intent.getParcelableExtra(Intent.EXTRA_INTENT); |
| if (!(targetParcelable instanceof Intent)) { |
| Log.w("UsbResolverActivity", "Target is not an intent: " + targetParcelable); |
| finish(); |
| return; |
| } |
| Intent target = (Intent)targetParcelable; |
| ArrayList<ResolveInfo> rList = intent.getParcelableArrayListExtra(EXTRA_RESOLVE_INFOS); |
| CharSequence title = getResources().getText(com.android.internal.R.string.chooseUsbActivity); |
| super.onCreate(savedInstanceState, target, title, null, rList, |
| true, /* Set alwaysUseOption to true to enable "always use this app" checkbox. */ |
| true /* Set alwaysChoose to display activity when only one choice is available. |
| This is necessary because this activity is needed for the user to allow |
| the application permission to access the device */ |
| ); |
| |
| mAccessory = (UsbAccessory)target.getParcelableExtra(UsbManager.EXTRA_ACCESSORY); |
| if (mAccessory == null) { |
| Log.e(TAG, "accessory is null"); |
| finish(); |
| return; |
| } |
| mDisconnectedReceiver = new UsbDisconnectedReceiver(this, mAccessory); |
| } |
| |
| @Override |
| protected void onDestroy() { |
| if (mDisconnectedReceiver != null) { |
| unregisterReceiver(mDisconnectedReceiver); |
| } |
| super.onDestroy(); |
| } |
| |
| protected void onIntentSelected(ResolveInfo ri, Intent intent, boolean alwaysCheck) { |
| try { |
| IBinder b = ServiceManager.getService(USB_SERVICE); |
| IUsbManager service = IUsbManager.Stub.asInterface(b); |
| int uid = ri.activityInfo.applicationInfo.uid; |
| |
| // grant permission for the accessory |
| service.grantAccessoryPermission(mAccessory, uid); |
| // set or clear default setting |
| if (alwaysCheck) { |
| service.setAccessoryPackage(mAccessory, ri.activityInfo.packageName); |
| } else { |
| service.setAccessoryPackage(mAccessory, null); |
| } |
| |
| try { |
| startActivity(intent); |
| } catch (ActivityNotFoundException e) { |
| Log.e(TAG, "startActivity failed", e); |
| } |
| } catch (RemoteException e) { |
| Log.e(TAG, "onIntentSelected failed", e); |
| } |
| } |
| } |