Increase target size of preferred letters while typing.

This increases the chance of hitting the correct letter when typing a word
that exists in the dictionary, rather than only correct it after the fact.
It is most effective after 2 or 3 letters of a word have been typed and gets
more accurate with more typed letters in the word.

If 2 adjacent letters have similar probabilities of occuring, then there is no
hit correction applied.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/com/android/inputmethod/latin/LatinIME.java b/src/com/android/inputmethod/latin/LatinIME.java
index 56971a534..470b0048e 100644
--- a/src/com/android/inputmethod/latin/LatinIME.java
+++ b/src/com/android/inputmethod/latin/LatinIME.java
@@ -1340,6 +1340,8 @@ public class LatinIME extends InputMethodService
     private void updateSuggestions() {
         mSuggestionShouldReplaceCurrentWord = false;
 
+        ((LatinKeyboard) mInputView.getKeyboard()).setPreferredLetters(null);
+
         // Check if we have a suggestion engine attached.
         if ((mSuggest == null || !isPredictionOn()) && !mVoiceInputHighlighted) {
             return;
@@ -1351,6 +1353,10 @@ public class LatinIME extends InputMethodService
         }
 
         List<CharSequence> stringList = mSuggest.getSuggestions(mInputView, mWord, false);
+        int[] nextLettersFrequencies = mSuggest.getNextLettersFrequencies();
+
+        ((LatinKeyboard) mInputView.getKeyboard()).setPreferredLetters(nextLettersFrequencies);
+
         boolean correctionAvailable = mSuggest.hasMinimalCorrection();
         //|| mCorrectionMode == mSuggest.CORRECTION_FULL;
         CharSequence typedWord = mWord.getTypedWord();