get Voicemail Number - Android Phone

Android examples for Phone:Phone Information

  1. HOME
  2. Android
  3. Phone
  4. Phone Information

Description

get Voicemail Number

Demo Code

/*//from   www  .jav  a2 s . c o m
 * Copyright (C) 2015 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.
 */
import android.Manifest;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.provider.CallLog.Calls;
import android.support.annotation.Nullable;
import android.support.v4.content.ContextCompat;
import android.telecom.PhoneAccount;
import android.telecom.PhoneAccountHandle;
import android.telecom.TelecomManager;
import android.telephony.PhoneNumberUtils;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Log;
import com.android.contacts.common.compat.CompatUtils;
import com.android.contacts.common.compat.telecom.TelecomManagerCompat;
import com.android.dialer.compat.DialerCompatUtils;
import java.util.ArrayList;
import java.util.List;

public class Main{
    private static final String TAG = "TelecomUtil";
    private static boolean sWarningLogged = false;
    @Nullable
    public static String getVoicemailNumber(Context context,
            PhoneAccountHandle accountHandle) {
        if (hasReadPhoneStatePermission(context)) {
            return TelecomManagerCompat.getVoiceMailNumber(
                    getTelecomManager(context),
                    getTelephonyManager(context), accountHandle);
        }
        return null;
    }
    public static boolean hasReadPhoneStatePermission(Context context) {
        return isDefaultDialer(context)
                || hasPermission(context,
                        Manifest.permission.READ_PHONE_STATE);
    }
    private static TelecomManager getTelecomManager(Context context) {
        return (TelecomManager) context
                .getSystemService(Context.TELECOM_SERVICE);
    }
    private static TelephonyManager getTelephonyManager(Context context) {
        return (TelephonyManager) context
                .getSystemService(Context.TELEPHONY_SERVICE);
    }
    public static boolean isDefaultDialer(Context context) {
        final boolean result = TextUtils
                .equals(context.getPackageName(),
                        TelecomManagerCompat
                                .getDefaultDialerPackage(getTelecomManager(context)));
        if (result) {
            sWarningLogged = false;
        } else {
            if (!sWarningLogged) {
                // Log only once to prevent spam.
                Log.w(TAG,
                        "Dialer is not currently set to be default dialer");
                sWarningLogged = true;
            }
        }
        return result;
    }
    private static boolean hasPermission(Context context, String permission) {
        return ContextCompat.checkSelfPermission(context, permission) == PackageManager.PERMISSION_GRANTED;
    }
}

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