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      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.contacts.util;
     18 
     19 import android.content.ComponentName;
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.content.pm.PackageManager;
     23 import android.content.pm.ResolveInfo;
     24 import android.net.Uri;
     25 import android.net.sip.SipManager;
     26 import android.provider.MediaStore;
     27 import android.provider.Telephony;
     28 import android.telephony.TelephonyManager;
     29 
     30 import com.android.contacts.common.ContactsUtils;
     31 
     32 import java.util.List;
     33 
     34 /**
     35  * Provides static functions to quickly test the capabilities of this device. The static
     36  * members are not safe for threading
     37  */
     38 public final class PhoneCapabilityTester {
     39     private static boolean sIsInitialized;
     40     private static boolean sIsPhone;
     41     private static boolean sIsSipPhone;
     42 
     43     /**
     44      * Tests whether the Intent has a receiver registered. This can be used to show/hide
     45      * functionality (like Phone, SMS)
     46      */
     47     public static boolean isIntentRegistered(Context context, Intent intent) {
     48         final PackageManager packageManager = context.getPackageManager();
     49         final List<ResolveInfo> receiverList = packageManager.queryIntentActivities(intent,
     50                 PackageManager.MATCH_DEFAULT_ONLY);
     51         return receiverList.size() > 0;
     52     }
     53 
     54     /**
     55      * Returns true if this device can be used to make phone calls
     56      */
     57     public static boolean isPhone(Context context) {
     58         if (!sIsInitialized) initialize(context);
     59         // Is the device physically capabable of making phone calls?
     60         return sIsPhone;
     61     }
     62 
     63     private static void initialize(Context context) {
     64         final TelephonyManager telephonyManager
     65                 = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
     66         sIsPhone = telephonyManager.isVoiceCapable();
     67         sIsSipPhone = sIsPhone && SipManager.isVoipSupported(context);
     68         sIsInitialized = true;
     69     }
     70 
     71     /**
     72      * Returns true if this device can be used to make sip calls
     73      */
     74     public static boolean isSipPhone(Context context) {
     75         if (!sIsInitialized) initialize(context);
     76         return sIsSipPhone;
     77     }
     78 
     79     /**
     80      * Returns the component name to use for sending to sms or null.
     81      */
     82     public static ComponentName getSmsComponent(Context context) {
     83         String smsPackage = Telephony.Sms.getDefaultSmsPackage(context);
     84         if (smsPackage != null) {
     85             final PackageManager packageManager = context.getPackageManager();
     86             final Intent intent = new Intent(Intent.ACTION_SENDTO,
     87                     Uri.fromParts(ContactsUtils.SCHEME_SMSTO, "", null));
     88             final List<ResolveInfo> resolveInfos = packageManager.queryIntentActivities(intent, 0);
     89             for (ResolveInfo resolveInfo : resolveInfos) {
     90                 if (smsPackage.equals(resolveInfo.activityInfo.packageName)) {
     91                     return new ComponentName(smsPackage, resolveInfo.activityInfo.name);
     92                 }
     93             }
     94         }
     95         return null;
     96     }
     97 
     98     /**
     99      * Returns true if there is a camera on the device
    100      */
    101     public static boolean isCameraIntentRegistered(Context context) {
    102         final Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    103         return isIntentRegistered(context, intent);
    104     }
    105 }
    106