GestureOverlayView 捕获手势

手势层控件，捕获手势轨迹

<android.gesture.GestureOverlayView
android:id="@+id/gestures_overlay"
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="1.0"

android:gestureStrokeType="multiple" />

手势控件，能用来捕获手势轨迹

GestureLibrary 用来保存 Gesture
GestureLibrary store = GestureBuilderActivity.getStore();
store.addGesture(name.toString(), mGesture);
store.save();