diff --git a/java/src/com/android/inputmethod/keyboard/PointerTracker.java b/java/src/com/android/inputmethod/keyboard/PointerTracker.java
index d093f7e..15c4419 100644
--- a/java/src/com/android/inputmethod/keyboard/PointerTracker.java
+++ b/java/src/com/android/inputmethod/keyboard/PointerTracker.java
@@ -25,7 +25,7 @@
 import com.android.inputmethod.keyboard.internal.BogusMoveEventDetector;
 import com.android.inputmethod.keyboard.internal.GestureEnabler;
 import com.android.inputmethod.keyboard.internal.GestureStroke;
-import com.android.inputmethod.keyboard.internal.GestureStroke.GestureStrokeParams;
+import com.android.inputmethod.keyboard.internal.GestureStrokeParams;
 import com.android.inputmethod.keyboard.internal.GestureStrokeWithPreviewPoints;
 import com.android.inputmethod.keyboard.internal.GestureStrokeWithPreviewPoints.GestureStrokePreviewParams;
 import com.android.inputmethod.keyboard.internal.PointerTrackerQueue;
diff --git a/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java b/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java
index 4f78e6b..605d53f 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java
@@ -16,13 +16,10 @@
 
 package com.android.inputmethod.keyboard.internal;
 
-import android.content.res.TypedArray;
 import android.util.Log;
 
 import com.android.inputmethod.latin.InputPointers;
-import com.android.inputmethod.latin.R;
 import com.android.inputmethod.latin.utils.ResizableIntArray;
-import com.android.inputmethod.latin.utils.ResourceUtils;
 
 public class GestureStroke {
     private static final String TAG = GestureStroke.class.getSimpleName();
@@ -64,77 +61,6 @@
     private int mIncrementalRecognitionSize;
     private int mLastIncrementalBatchSize;
 
-    public static final class GestureStrokeParams {
-        // Static threshold for gesture after fast typing
-        public final int mStaticTimeThresholdAfterFastTyping; // msec
-        // Static threshold for starting gesture detection
-        public final float mDetectFastMoveSpeedThreshold; // keyWidth/sec
-        // Dynamic threshold for gesture after fast typing
-        public final int mDynamicThresholdDecayDuration; // msec
-        // Time based threshold values
-        public final int mDynamicTimeThresholdFrom; // msec
-        public final int mDynamicTimeThresholdTo; // msec
-        // Distance based threshold values
-        public final float mDynamicDistanceThresholdFrom; // keyWidth
-        public final float mDynamicDistanceThresholdTo; // keyWidth
-        // Parameters for gesture sampling
-        public final float mSamplingMinimumDistance; // keyWidth
-        // Parameters for gesture recognition
-        public final int mRecognitionMinimumTime; // msec
-        public final float mRecognitionSpeedThreshold; // keyWidth/sec
-
-        // Default GestureStroke parameters.
-        public static final GestureStrokeParams DEFAULT = new GestureStrokeParams();
-
-        private GestureStrokeParams() {
-            // These parameter values are default and intended for testing.
-            mStaticTimeThresholdAfterFastTyping = 350; // msec
-            mDetectFastMoveSpeedThreshold = 1.5f; // keyWidth/sec
-            mDynamicThresholdDecayDuration = 450; // msec
-            mDynamicTimeThresholdFrom = 300; // msec
-            mDynamicTimeThresholdTo = 20; // msec
-            mDynamicDistanceThresholdFrom = 6.0f; // keyWidth
-            mDynamicDistanceThresholdTo = 0.35f; // keyWidth
-            // The following parameters' change will affect the result of regression test.
-            mSamplingMinimumDistance = 1.0f / 6.0f; // keyWidth
-            mRecognitionMinimumTime = 100; // msec
-            mRecognitionSpeedThreshold = 5.5f; // keyWidth/sec
-        }
-
-        public GestureStrokeParams(final TypedArray mainKeyboardViewAttr) {
-            mStaticTimeThresholdAfterFastTyping = mainKeyboardViewAttr.getInt(
-                    R.styleable.MainKeyboardView_gestureStaticTimeThresholdAfterFastTyping,
-                    DEFAULT.mStaticTimeThresholdAfterFastTyping);
-            mDetectFastMoveSpeedThreshold = ResourceUtils.getFraction(mainKeyboardViewAttr,
-                    R.styleable.MainKeyboardView_gestureDetectFastMoveSpeedThreshold,
-                    DEFAULT.mDetectFastMoveSpeedThreshold);
-            mDynamicThresholdDecayDuration = mainKeyboardViewAttr.getInt(
-                    R.styleable.MainKeyboardView_gestureDynamicThresholdDecayDuration,
-                    DEFAULT.mDynamicThresholdDecayDuration);
-            mDynamicTimeThresholdFrom = mainKeyboardViewAttr.getInt(
-                    R.styleable.MainKeyboardView_gestureDynamicTimeThresholdFrom,
-                    DEFAULT.mDynamicTimeThresholdFrom);
-            mDynamicTimeThresholdTo = mainKeyboardViewAttr.getInt(
-                    R.styleable.MainKeyboardView_gestureDynamicTimeThresholdTo,
-                    DEFAULT.mDynamicTimeThresholdTo);
-            mDynamicDistanceThresholdFrom = ResourceUtils.getFraction(mainKeyboardViewAttr,
-                    R.styleable.MainKeyboardView_gestureDynamicDistanceThresholdFrom,
-                    DEFAULT.mDynamicDistanceThresholdFrom);
-            mDynamicDistanceThresholdTo = ResourceUtils.getFraction(mainKeyboardViewAttr,
-                    R.styleable.MainKeyboardView_gestureDynamicDistanceThresholdTo,
-                    DEFAULT.mDynamicDistanceThresholdTo);
-            mSamplingMinimumDistance = ResourceUtils.getFraction(mainKeyboardViewAttr,
-                    R.styleable.MainKeyboardView_gestureSamplingMinimumDistance,
-                    DEFAULT.mSamplingMinimumDistance);
-            mRecognitionMinimumTime = mainKeyboardViewAttr.getInt(
-                    R.styleable.MainKeyboardView_gestureRecognitionMinimumTime,
-                    DEFAULT.mRecognitionMinimumTime);
-            mRecognitionSpeedThreshold = ResourceUtils.getFraction(mainKeyboardViewAttr,
-                    R.styleable.MainKeyboardView_gestureRecognitionSpeedThreshold,
-                    DEFAULT.mRecognitionSpeedThreshold);
-        }
-    }
-
     private static final int MSEC_PER_SEC = 1000;
 
     public GestureStroke(final int pointerId, final GestureStrokeParams params) {
diff --git a/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeParams.java b/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeParams.java
new file mode 100644
index 0000000..fdae5b9
--- /dev/null
+++ b/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeParams.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.keyboard.internal;
+
+import android.content.res.TypedArray;
+
+import com.android.inputmethod.latin.R;
+import com.android.inputmethod.latin.utils.ResourceUtils;
+
+public final class GestureStrokeParams {
+    // Static threshold for gesture after fast typing
+    public final int mStaticTimeThresholdAfterFastTyping; // msec
+    // Static threshold for starting gesture detection
+    public final float mDetectFastMoveSpeedThreshold; // keyWidth/sec
+    // Dynamic threshold for gesture after fast typing
+    public final int mDynamicThresholdDecayDuration; // msec
+    // Time based threshold values
+    public final int mDynamicTimeThresholdFrom; // msec
+    public final int mDynamicTimeThresholdTo; // msec
+    // Distance based threshold values
+    public final float mDynamicDistanceThresholdFrom; // keyWidth
+    public final float mDynamicDistanceThresholdTo; // keyWidth
+    // Parameters for gesture sampling
+    public final float mSamplingMinimumDistance; // keyWidth
+    // Parameters for gesture recognition
+    public final int mRecognitionMinimumTime; // msec
+    public final float mRecognitionSpeedThreshold; // keyWidth/sec
+
+    // Default GestureStroke parameters.
+    public static final GestureStrokeParams DEFAULT = new GestureStrokeParams();
+
+    private GestureStrokeParams() {
+        // These parameter values are default and intended for testing.
+        mStaticTimeThresholdAfterFastTyping = 350; // msec
+        mDetectFastMoveSpeedThreshold = 1.5f; // keyWidth/sec
+        mDynamicThresholdDecayDuration = 450; // msec
+        mDynamicTimeThresholdFrom = 300; // msec
+        mDynamicTimeThresholdTo = 20; // msec
+        mDynamicDistanceThresholdFrom = 6.0f; // keyWidth
+        mDynamicDistanceThresholdTo = 0.35f; // keyWidth
+        // The following parameters' change will affect the result of regression test.
+        mSamplingMinimumDistance = 1.0f / 6.0f; // keyWidth
+        mRecognitionMinimumTime = 100; // msec
+        mRecognitionSpeedThreshold = 5.5f; // keyWidth/sec
+    }
+
+    public GestureStrokeParams(final TypedArray mainKeyboardViewAttr) {
+        mStaticTimeThresholdAfterFastTyping = mainKeyboardViewAttr.getInt(
+                R.styleable.MainKeyboardView_gestureStaticTimeThresholdAfterFastTyping,
+                DEFAULT.mStaticTimeThresholdAfterFastTyping);
+        mDetectFastMoveSpeedThreshold = ResourceUtils.getFraction(mainKeyboardViewAttr,
+                R.styleable.MainKeyboardView_gestureDetectFastMoveSpeedThreshold,
+                DEFAULT.mDetectFastMoveSpeedThreshold);
+        mDynamicThresholdDecayDuration = mainKeyboardViewAttr.getInt(
+                R.styleable.MainKeyboardView_gestureDynamicThresholdDecayDuration,
+                DEFAULT.mDynamicThresholdDecayDuration);
+        mDynamicTimeThresholdFrom = mainKeyboardViewAttr.getInt(
+                R.styleable.MainKeyboardView_gestureDynamicTimeThresholdFrom,
+                DEFAULT.mDynamicTimeThresholdFrom);
+        mDynamicTimeThresholdTo = mainKeyboardViewAttr.getInt(
+                R.styleable.MainKeyboardView_gestureDynamicTimeThresholdTo,
+                DEFAULT.mDynamicTimeThresholdTo);
+        mDynamicDistanceThresholdFrom = ResourceUtils.getFraction(mainKeyboardViewAttr,
+                R.styleable.MainKeyboardView_gestureDynamicDistanceThresholdFrom,
+                DEFAULT.mDynamicDistanceThresholdFrom);
+        mDynamicDistanceThresholdTo = ResourceUtils.getFraction(mainKeyboardViewAttr,
+                R.styleable.MainKeyboardView_gestureDynamicDistanceThresholdTo,
+                DEFAULT.mDynamicDistanceThresholdTo);
+        mSamplingMinimumDistance = ResourceUtils.getFraction(mainKeyboardViewAttr,
+                R.styleable.MainKeyboardView_gestureSamplingMinimumDistance,
+                DEFAULT.mSamplingMinimumDistance);
+        mRecognitionMinimumTime = mainKeyboardViewAttr.getInt(
+                R.styleable.MainKeyboardView_gestureRecognitionMinimumTime,
+                DEFAULT.mRecognitionMinimumTime);
+        mRecognitionSpeedThreshold = ResourceUtils.getFraction(mainKeyboardViewAttr,
+                R.styleable.MainKeyboardView_gestureRecognitionSpeedThreshold,
+                DEFAULT.mRecognitionSpeedThreshold);
+    }
+}