80 lines
2.9 KiB
Java
80 lines
2.9 KiB
Java
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.internal.telephony;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.provider.Telephony;
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import android.text.TextUtils;
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import android.util.Log;
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/**
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* This class provides utility functions related to CellBroadcast.
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*/
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public class CellBroadcastUtils {
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private static final String TAG = "CellBroadcastUtils";
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private static final boolean VDBG = false;
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/**
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* Utility method to query the default CBR's package name.
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*/
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public static String getDefaultCellBroadcastReceiverPackageName(Context context) {
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PackageManager packageManager = context.getPackageManager();
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ResolveInfo resolveInfo = packageManager.resolveActivity(
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new Intent(Telephony.Sms.Intents.SMS_CB_RECEIVED_ACTION),
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PackageManager.MATCH_SYSTEM_ONLY);
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String packageName;
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if (resolveInfo == null) {
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Log.e(TAG, "getDefaultCellBroadcastReceiverPackageName: no package found");
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return null;
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}
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packageName = resolveInfo.activityInfo.applicationInfo.packageName;
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if (VDBG) {
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Log.d(TAG, "getDefaultCellBroadcastReceiverPackageName: found package: " + packageName);
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}
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if (TextUtils.isEmpty(packageName) || packageManager.checkPermission(
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android.Manifest.permission.READ_CELL_BROADCASTS, packageName)
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== PackageManager.PERMISSION_DENIED) {
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Log.e(TAG, "getDefaultCellBroadcastReceiverPackageName: returning null; "
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+ "permission check failed for : " + packageName);
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return null;
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}
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return packageName;
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}
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/**
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* Utility method to get cellbroadcast alert dialog component name
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*/
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public static ComponentName getDefaultCellBroadcastAlertDialogComponent(Context context) {
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String cellBroadcastReceiverPackageName =
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getDefaultCellBroadcastReceiverPackageName(context);
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if (TextUtils.isEmpty(cellBroadcastReceiverPackageName)) {
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return null;
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}
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return ComponentName.createRelative(cellBroadcastReceiverPackageName,
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"com.android.cellbroadcastreceiver.CellBroadcastAlertDialog");
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}
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}
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