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      1 /*
      2  * Copyright (C) 2009 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.phone;
     18 
     19 import android.app.AlertDialog;
     20 import android.content.Context;
     21 import android.os.SystemProperties;
     22 import android.util.Log;
     23 import android.view.WindowManager;
     24 
     25 /**
     26  * Helper class for displaying the a string triggered by a lower level Phone request
     27  */
     28 public class PhoneDisplayMessage {
     29     private static final String LOG_TAG = "PhoneDisplayMessage";
     30     private static final boolean DBG = (SystemProperties.getInt("ro.debuggable", 0) == 1);
     31 
     32     /** Display message dialog */
     33     private static AlertDialog sDisplayMessageDialog = null;
     34 
     35     /**
     36      * Display the alert dialog with the network message.
     37      *
     38      * @param context context to get strings.
     39      * @param infoMsg Text message from Network.
     40      */
     41     public static void displayNetworkMessage(Context context, String infoMsg) {
     42         if (DBG) log("displayInfoRecord: infoMsg=" + infoMsg);
     43 
     44         String title = (String)context.getText(R.string.network_info_message);
     45         displayMessage(context, title, infoMsg);
     46     }
     47 
     48     /**
     49      * Display the alert dialog with the error message.
     50      *
     51      * @param context context to get strings.
     52      * @param errorMsg Error message describing the network triggered error
     53      */
     54     public static void displayErrorMessage(Context context, String errorMsg) {
     55         if (DBG) log("displayErrorMessage: errorMsg=" + errorMsg);
     56 
     57         String title = (String)context.getText(R.string.network_error_message);
     58         displayMessage(context, title, errorMsg);
     59     }
     60 
     61     public static void displayMessage(Context context, String title, String msg) {
     62         if (DBG) log("displayMessage: msg=" + msg);
     63 
     64         if (sDisplayMessageDialog != null) {
     65             sDisplayMessageDialog.dismiss();
     66         }
     67 
     68         // displaying system alert dialog on the screen instead of
     69         // using another activity to display the message.  This
     70         // places the message at the forefront of the UI.
     71         sDisplayMessageDialog = new AlertDialog.Builder(context)
     72                 .setIcon(android.R.drawable.ic_dialog_info)
     73                 .setTitle(title)
     74                 .setMessage(msg)
     75                 .setCancelable(true)
     76                 .create();
     77 
     78         sDisplayMessageDialog.getWindow().setType(
     79                 WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG);
     80         sDisplayMessageDialog.getWindow().addFlags(
     81                 WindowManager.LayoutParams.FLAG_DIM_BEHIND);
     82 
     83         sDisplayMessageDialog.show();
     84         PhoneGlobals.getInstance().wakeUpScreen();
     85     }
     86 
     87     /**
     88      * Dismiss the DisplayInfo record
     89      */
     90     public static void dismissMessage() {
     91         if (DBG) log("Dissmissing Display Info Record...");
     92 
     93         if (sDisplayMessageDialog != null) {
     94             sDisplayMessageDialog.dismiss();
     95             sDisplayMessageDialog = null;
     96         }
     97     }
     98 
     99     private static void log(String msg) {
    100         Log.d(LOG_TAG, "[PhoneDisplayMessage] " + msg);
    101     }
    102 }
    103