src/com/owncloud/android/notifications/NotificationBuilderWithProgressBar.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2014 ownCloud Inc.
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License version 2,
   6  *   as published by the Free Software Foundation.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  *
  13  *   You should have received a copy of the GNU General Public License
  14  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  */
  17
  18 package com.owncloud.android.notifications;
  19
  20 import com.owncloud.android.R;
  21
  22 import android.app.Notification;
  23 import android.app.NotificationManager;
  24 import android.content.Context;
  25 import android.os.Build;
  26 import android.os.Handler;
  27 import android.os.HandlerThread;
  28 import android.os.Process;
  29 import android.support.v4.app.NotificationCompat;
  30 import android.view.View;
  31 import android.widget.RemoteViews;
  32
  33 /**
  34  * Extends the support class {@link NotificationCompat.Builder} to grant that
  35  * a progress bar is available in every Android version, because
  36  * {@link NotificationCompat.Builder#setProgress(int, int, boolean)} has no
  37  * real effect for Android < 4.0
  38  *
  39  * @author David A. Velasco
  40  */
  41 public class NotificationBuilderWithProgressBar extends NotificationCompat.Builder {
  42
  43     /**
  44      * Custom view to replace the original layout of the notifications
  45      */
  46     private RemoteViews mContentView = null;
  47
  48     /**
  49      * Fatory method.
  50      *
  51      * Instances of this class will be only returned in Android versions needing it.
  52      *
  53      * @param context       Context that will use the builder to create notifications
  54      * @return              An instance of this class, or of the regular
  55      *                      {@link NotificationCompat.Builder}, when it is good enough.
  56      */
  57     public static NotificationCompat.Builder newNotificationBuilderWithProgressBar(Context context) {
  58         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
  59             return new NotificationBuilderWithProgressBar(context);
  60         } else {
  61             return new NotificationCompat.Builder(context);
  62         }
  63     }
  64
  65     /**
  66      * Constructor.
  67      *
  68      * @param context       Context that will use the builder to create notifications.
  69      */
  70     private NotificationBuilderWithProgressBar(Context context) {
  71         super(context);
  72         mContentView = new RemoteViews(context.getPackageName(), R.layout.notification_with_progress_bar);
  73         setContent(mContentView);
  74     }
  75
  76     /**
  77      * {@inheritDoc}
  78      */
  79     @Override
  80     public NotificationCompat.Builder setProgress(int max, int progress, boolean indeterminate) {
  81         mContentView.setProgressBar(R.id.progress, max, progress, indeterminate);
  82         if (max > 0) {
  83             mContentView.setViewVisibility(R.id.progressHolder, View.VISIBLE);
  84         } else {
  85             mContentView.setViewVisibility(R.id.progressHolder, View.GONE);
  86         }
  87         return this;
  88     }
  89
  90     /**
  91      * {@inheritDoc}
  92      */
  93     @Override
  94     public NotificationCompat.Builder setSmallIcon(int icon) {
  95         super.setSmallIcon(icon);   // necessary
  96         mContentView.setImageViewResource(R.id.icon, icon);
  97         return this;
  98     }
  99
 100     /**
 101      * {@inheritDoc}
 102      */
 103     @Override
 104     public NotificationCompat.Builder setContentTitle(CharSequence title) {
 105         super.setContentTitle(title);
 106         mContentView.setTextViewText(R.id.title, title);
 107         return this;
 108     }
 109
 110     /**
 111      * {@inheritDoc}
 112      */
 113     @Override
 114     public NotificationCompat.Builder setContentText(CharSequence text) {
 115         super.setContentText(text);
 116         mContentView.setTextViewText(R.id.text, text);
 117         if (text != null && text.length() > 0) {
 118             mContentView.setViewVisibility(R.id.text, View.VISIBLE);
 119         } else {
 120             mContentView.setViewVisibility(R.id.text, View.GONE);
 121         }
 122         return this;
 123     }
 124
 125     @Override
 126     public Notification build() {
 127         Notification result = super.build();
 128         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) {
 129             // super.build() in Android 2.x totally ruins whatever was made #setContent
 130             result.contentView = mContentView;
 131         }
 132         return result;
 133     }
 134
 135
 136 }