Use SparseArray<E> instead of HashMap<Integer,E>

Change-Id: Id962e670ee1a5164e6c69deb84625139bf5e7974

1 files changed, 7 insertions, 5 deletions

diff --git a/java/src/com/android/inputmethod/accessibility/KeyCodeDescriptionMapper.java b/java/src/com/android/inputmethod/accessibility/KeyCodeDescriptionMapper.java
index 23acb8b74..5ffd94a43 100644
--- a/java/src/com/android/inputmethod/accessibility/KeyCodeDescriptionMapper.java
+++ b/java/src/com/android/inputmethod/accessibility/KeyCodeDescriptionMapper.java
@@ -19,6 +19,7 @@ package com.android.inputmethod.accessibility;
 import android.content.Context;
 import android.text.TextUtils;
 import android.util.Log;
+import android.util.SparseIntArray;
 import android.view.inputmethod.EditorInfo;
 
 import com.android.inputmethod.keyboard.Key;
@@ -39,8 +40,8 @@ public class KeyCodeDescriptionMapper {
     // Map of key labels to spoken description resource IDs
     private final HashMap<CharSequence, Integer> mKeyLabelMap;
 
-    // Map of key codes to spoken description resource IDs
-    private final HashMap<Integer, Integer> mKeyCodeMap;
+    // Sparse array of spoken description resource IDs indexed by key codes
+    private final SparseIntArray mKeyCodeMap;
 
     public static void init() {
         sInstance.initInternal();
@@ -52,7 +53,7 @@ public class KeyCodeDescriptionMapper {
 
     private KeyCodeDescriptionMapper() {
         mKeyLabelMap = new HashMap<CharSequence, Integer>();
-        mKeyCodeMap = new HashMap<Integer, Integer>();
+        mKeyCodeMap = new SparseIntArray();
     }
 
     private void initInternal() {
@@ -60,7 +61,7 @@ public class KeyCodeDescriptionMapper {
         mKeyLabelMap.put(":-)", R.string.spoken_description_smiley);
 
         // Symbols that most TTS engines can't speak
-        mKeyCodeMap.put((int) ' ', R.string.spoken_description_space);
+        mKeyCodeMap.put(' ', R.string.spoken_description_space);
 
         // Special non-character codes defined in Keyboard
         mKeyCodeMap.put(Keyboard.CODE_DELETE, R.string.spoken_description_delete);
@@ -273,7 +274,8 @@ public class KeyCodeDescriptionMapper {
             return context.getString(OBSCURED_KEY_RES_ID);
         }
 
-        if (mKeyCodeMap.containsKey(code)) {
+        final int resId = mKeyCodeMap.get(code);
+        if (resId != 0) {
             return context.getString(mKeyCodeMap.get(code));
         } else if (isDefinedNonCtrl) {
             return Character.toString((char) code);