1 /* 2 * Copyright (C) 2011 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 com.android.internal.app.ResolverActivity; 20 21 import android.content.ActivityNotFoundException; 22 import android.content.Intent; 23 import android.content.pm.ResolveInfo; 24 import android.hardware.usb.IUsbManager; 25 import android.hardware.usb.UsbAccessory; 26 import android.hardware.usb.UsbManager; 27 import android.os.Bundle; 28 import android.os.IBinder; 29 import android.os.Parcelable; 30 import android.os.RemoteException; 31 import android.os.ServiceManager; 32 import android.util.Log; 33 import android.widget.CheckBox; 34 35 import com.android.systemui.R; 36 37 import java.util.ArrayList; 38 39 /* Activity for choosing an application for a USB device or accessory */ 40 public class UsbResolverActivity extends ResolverActivity { 41 public static final String TAG = "UsbResolverActivity"; 42 public static final String EXTRA_RESOLVE_INFOS = "rlist"; 43 44 private UsbAccessory mAccessory; 45 private UsbDisconnectedReceiver mDisconnectedReceiver; 46 47 @Override 48 protected void onCreate(Bundle savedInstanceState) { 49 Intent intent = getIntent(); 50 Parcelable targetParcelable = intent.getParcelableExtra(Intent.EXTRA_INTENT); 51 if (!(targetParcelable instanceof Intent)) { 52 Log.w("UsbResolverActivity", "Target is not an intent: " + targetParcelable); 53 finish(); 54 return; 55 } 56 Intent target = (Intent)targetParcelable; 57 ArrayList<ResolveInfo> rList = intent.getParcelableArrayListExtra(EXTRA_RESOLVE_INFOS); 58 CharSequence title = getResources().getText(com.android.internal.R.string.chooseUsbActivity); 59 super.onCreate(savedInstanceState, target, title, null, rList, 60 true /* Set alwaysUseOption to true to enable "always use this app" checkbox. */ ); 61 62 CheckBox alwaysUse = (CheckBox)findViewById(com.android.internal.R.id.alwaysUse); 63 if (alwaysUse != null) { 64 alwaysUse.setText(R.string.always_use_accessory); 65 } 66 67 mAccessory = (UsbAccessory)target.getParcelableExtra(UsbManager.EXTRA_ACCESSORY); 68 if (mAccessory == null) { 69 Log.e(TAG, "accessory is null"); 70 finish(); 71 return; 72 } 73 mDisconnectedReceiver = new UsbDisconnectedReceiver(this, mAccessory); 74 } 75 76 @Override 77 protected void onDestroy() { 78 if (mDisconnectedReceiver != null) { 79 unregisterReceiver(mDisconnectedReceiver); 80 } 81 super.onDestroy(); 82 } 83 84 protected void onIntentSelected(ResolveInfo ri, Intent intent, boolean alwaysCheck) { 85 try { 86 IBinder b = ServiceManager.getService(USB_SERVICE); 87 IUsbManager service = IUsbManager.Stub.asInterface(b); 88 int uid = ri.activityInfo.applicationInfo.uid; 89 90 // grant permission for the accessory 91 service.grantAccessoryPermission(mAccessory, uid); 92 // set or clear default setting 93 if (alwaysCheck) { 94 service.setAccessoryPackage(mAccessory, ri.activityInfo.packageName); 95 } else { 96 service.setAccessoryPackage(mAccessory, null); 97 } 98 99 try { 100 startActivity(intent); 101 } catch (ActivityNotFoundException e) { 102 Log.e(TAG, "startActivity failed", e); 103 } 104 } catch (RemoteException e) { 105 Log.e(TAG, "onIntentSelected failed", e); 106 } 107 } 108 } 109