actionbarsherlock/src/com/actionbarsherlock/internal/ResourcesCompat.java

   1 package com.actionbarsherlock.internal;
   2
   3 import android.content.Context;
   4 import android.os.Build;
   5 import android.util.DisplayMetrics;
   6 import com.actionbarsherlock.R;
   7
   8 public final class ResourcesCompat {
   9     //No instances
  10     private ResourcesCompat() {}
  11
  12
  13     /**
  14      * Support implementation of {@code getResources().getBoolean()} that we
  15      * can use to simulate filtering based on width and smallest width
  16      * qualifiers on pre-3.2.
  17      *
  18      * @param context Context to load booleans from on 3.2+ and to fetch the
  19      * display metrics.
  20      * @param id Id of boolean to load.
  21      * @return Associated boolean value as reflected by the current display
  22      * metrics.
  23      */
  24     public static boolean getResources_getBoolean(Context context, int id) {
  25         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
  26             return context.getResources().getBoolean(id);
  27         }
  28
  29         DisplayMetrics metrics = context.getResources().getDisplayMetrics();
  30         float widthDp = metrics.widthPixels / metrics.density;
  31         float heightDp = metrics.heightPixels / metrics.density;
  32         float smallestWidthDp = (widthDp < heightDp) ? widthDp : heightDp;
  33
  34         if (id == R.bool.abs__action_bar_embed_tabs) {
  35             if (widthDp >= 480) {
  36                 return true; //values-w480dp
  37             }
  38             return false; //values
  39         }
  40         if (id == R.bool.abs__split_action_bar_is_narrow) {
  41             if (widthDp >= 480) {
  42                 return false; //values-w480dp
  43             }
  44             return true; //values
  45         }
  46         if (id == R.bool.abs__action_bar_expanded_action_views_exclusive) {
  47             if (smallestWidthDp >= 600) {
  48                 return false; //values-sw600dp
  49             }
  50             return true; //values
  51         }
  52         if (id == R.bool.abs__config_allowActionMenuItemTextWithIcon) {
  53             if (widthDp >= 480) {
  54                 return true; //values-w480dp
  55             }
  56             return false; //values
  57         }
  58
  59         throw new IllegalArgumentException("Unknown boolean resource ID " + id);
  60     }
  61
  62     /**
  63      * Support implementation of {@code getResources().getInteger()} that we
  64      * can use to simulate filtering based on width qualifiers on pre-3.2.
  65      *
  66      * @param context Context to load integers from on 3.2+ and to fetch the
  67      * display metrics.
  68      * @param id Id of integer to load.
  69      * @return Associated integer value as reflected by the current display
  70      * metrics.
  71      */
  72     public static int getResources_getInteger(Context context, int id) {
  73         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
  74             return context.getResources().getInteger(id);
  75         }
  76
  77         DisplayMetrics metrics = context.getResources().getDisplayMetrics();
  78         float widthDp = metrics.widthPixels / metrics.density;
  79
  80         if (id == R.integer.abs__max_action_buttons) {
  81             if (widthDp >= 600) {
  82                 return 5; //values-w600dp
  83             }
  84             if (widthDp >= 500) {
  85                 return 4; //values-w500dp
  86             }
  87             if (widthDp >= 360) {
  88                 return 3; //values-w360dp
  89             }
  90             return 2; //values
  91         }
  92
  93         throw new IllegalArgumentException("Unknown integer resource ID " + id);
  94     }
  95 }