Java tutorial
/* * Copyright (C) 2014 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.settings.sim; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.res.Resources; import android.os.SystemProperties; import android.provider.Settings; import android.support.v4.app.NotificationCompat; import android.telephony.SubscriptionInfo; import android.telephony.SubscriptionManager; import android.telephony.TelephonyManager; import android.util.Log; import com.android.internal.telephony.IccCardConstants; import com.android.settings.R; import com.android.settings.Settings.SimSettingsActivity; import com.android.settings.Utils; import java.util.List; public class SimSelectNotification extends BroadcastReceiver { private static final String TAG = "SimSelectNotification"; private static final int NOTIFICATION_ID = 1; @Override public void onReceive(Context context, Intent intent) { final TelephonyManager telephonyManager = (TelephonyManager) context .getSystemService(Context.TELEPHONY_SERVICE); final SubscriptionManager subscriptionManager = SubscriptionManager.from(context); final int numSlots = telephonyManager.getSimCount(); // Do not create notifications on single SIM devices or when provisioning i.e. Setup Wizard. // or User selection of fallback user preference is disabled. if (numSlots < 2 || !Utils.isDeviceProvisioned(context) || !SystemProperties.getBoolean("persist.radio.aosp_usr_pref_sel", false)) { Log.d(TAG, " no of slots " + numSlots + " provision = " + Utils.isDeviceProvisioned(context)); return; } // Cancel any previous notifications cancelNotification(context); // If sim state is not ABSENT or LOADED then ignore String simStatus = intent.getStringExtra(IccCardConstants.INTENT_KEY_ICC_STATE); if (!(IccCardConstants.INTENT_VALUE_ICC_ABSENT.equals(simStatus) || IccCardConstants.INTENT_VALUE_ICC_LOADED.equals(simStatus))) { Log.d(TAG, "sim state is not Absent or Loaded"); return; } else { Log.d(TAG, "simstatus = " + simStatus); } int state; for (int i = 0; i < numSlots; i++) { state = telephonyManager.getSimState(i); if (!(state == TelephonyManager.SIM_STATE_ABSENT || state == TelephonyManager.SIM_STATE_READY || state == TelephonyManager.SIM_STATE_UNKNOWN)) { Log.d(TAG, "All sims not in valid state yet"); return; } } List<SubscriptionInfo> sil = subscriptionManager.getActiveSubscriptionInfoList(); if (sil == null || sil.size() < 1) { Log.d(TAG, "Subscription list is empty"); return; } // Clear defaults for any subscriptions which no longer exist subscriptionManager.clearDefaultsForInactiveSubIds(); boolean dataSelected = SubscriptionManager .isUsableSubIdValue(SubscriptionManager.getDefaultDataSubscriptionId()); boolean smsSelected = SubscriptionManager .isUsableSubIdValue(SubscriptionManager.getDefaultSmsSubscriptionId()); // If data and sms defaults are selected, dont show notification (Calls default is optional) if (dataSelected && smsSelected) { Log.d(TAG, "Data & SMS default sims are selected. No notification"); return; } // Create a notification to tell the user that some defaults are missing createNotification(context); if (sil.size() == 1) { // If there is only one subscription, ask if user wants to use if for everything Intent newIntent = new Intent(context, SimDialogActivity.class); newIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); newIntent.putExtra(SimDialogActivity.DIALOG_TYPE_KEY, SimDialogActivity.PREFERRED_PICK); newIntent.putExtra(SimDialogActivity.PREFERRED_SIM, sil.get(0).getSimSlotIndex()); context.startActivity(newIntent); } else if (!dataSelected) { // If there are mulitple, ensure they pick default data Intent newIntent = new Intent(context, SimDialogActivity.class); newIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); newIntent.putExtra(SimDialogActivity.DIALOG_TYPE_KEY, SimDialogActivity.DATA_PICK); context.startActivity(newIntent); } } private void createNotification(Context context) { final Resources resources = context.getResources(); NotificationCompat.Builder builder = new NotificationCompat.Builder(context) .setSmallIcon(R.drawable.ic_sim_card_alert_white_48dp) .setColor(context.getColor(R.color.sim_noitification)) .setContentTitle(resources.getString(R.string.sim_notification_title)) .setContentText(resources.getString(R.string.sim_notification_summary)); Intent resultIntent = new Intent(context, SimSettingsActivity.class); resultIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); PendingIntent resultPendingIntent = PendingIntent.getActivity(context, 0, resultIntent, PendingIntent.FLAG_CANCEL_CURRENT); builder.setContentIntent(resultPendingIntent); NotificationManager notificationManager = (NotificationManager) context .getSystemService(Context.NOTIFICATION_SERVICE); notificationManager.notify(NOTIFICATION_ID, builder.build()); } public static void cancelNotification(Context context) { NotificationManager notificationManager = (NotificationManager) context .getSystemService(Context.NOTIFICATION_SERVICE); notificationManager.cancel(NOTIFICATION_ID); } }