Home | History | Annotate | Download | only in util 
      1 /*
      2  * Copyright (C) 2015 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.launcher3.util;
     18 
     19 import android.content.Context;
     20 import android.content.Intent.ShortcutIconResource;
     21 import android.database.Cursor;
     22 import android.graphics.Bitmap;
     23 import android.text.TextUtils;
     24 
     25 import com.android.launcher3.LauncherSettings;
     26 import com.android.launcher3.ShortcutInfo;
     27 import com.android.launcher3.Utilities;
     28 
     29 /**
     30  * Utility class to load icon from a cursor.
     31  */
     32 public class CursorIconInfo {
     33     public final int iconPackageIndex;
     34     public final int iconResourceIndex;
     35     public final int iconIndex;
     36 
     37     public final int titleIndex;
     38 
     39     private final Context mContext;
     40 
     41     public CursorIconInfo(Context context, Cursor c) {
     42         mContext = context;
     43 
     44         iconIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON);
     45         iconPackageIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON_PACKAGE);
     46         iconResourceIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON_RESOURCE);
     47 
     48         titleIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE);
     49     }
     50 
     51     /**
     52      * Loads the icon from the cursor and updates the {@param info} if the icon is an app resource.
     53      */
     54     public Bitmap loadIcon(Cursor c, ShortcutInfo info) {
     55         Bitmap icon = null;
     56         String packageName = c.getString(iconPackageIndex);
     57         String resourceName = c.getString(iconResourceIndex);
     58         if (!TextUtils.isEmpty(packageName) || !TextUtils.isEmpty(resourceName)) {
     59             info.iconResource = new ShortcutIconResource();
     60             info.iconResource.packageName = packageName;
     61             info.iconResource.resourceName = resourceName;
     62             icon = Utilities.createIconBitmap(packageName, resourceName, mContext);
     63         }
     64         if (icon == null) {
     65             // Failed to load from resource, try loading from DB.
     66             icon = loadIcon(c);
     67         }
     68         return icon;
     69     }
     70 
     71     /**
     72      * Loads the fixed bitmap from the icon if available.
     73      */
     74     public Bitmap loadIcon(Cursor c) {
     75         return Utilities.createIconBitmap(c, iconIndex, mContext);
     76     }
     77 
     78     /**
     79      * Returns the title or empty string
     80      */
     81     public String getTitle(Cursor c) {
     82         String title = c.getString(titleIndex);
     83         return TextUtils.isEmpty(title) ? "" : Utilities.trim(c.getString(titleIndex));
     84     }
     85 }
     86