Sync mnc-dev sample prebuilts

Syncing to //developers/samples/android commmit 2be5f5ca32.

Change-Id: Ia08c63655bd122c7fbb0cc3a50eec95d8edcb3f1

samples/browseable/BasicGestureDetect/src/com.example.android.basicgesturedetect/GestureListener.java

@@ -16,6 +16,8 @@
 
 package com.example.android.basicgesturedetect;
 
+import android.annotation.TargetApi;
+import android.os.Build;
 import android.view.GestureDetector;
 import android.view.MotionEvent;
 
@@ -29,7 +31,7 @@ public class GestureListener extends GestureDetector.SimpleOnGestureListener {
     @Override
     public boolean onSingleTapUp(MotionEvent e) {
         // Up motion completing a single tap occurred.
-        Log.i(TAG, "Single Tap Up");
+        Log.i(TAG, "Single Tap Up" + getTouchType(e));
         return false;
     }
 
@@ -37,14 +39,14 @@ public class GestureListener extends GestureDetector.SimpleOnGestureListener {
     public void onLongPress(MotionEvent e) {
         // Touch has been long enough to indicate a long press.
         // Does not indicate motion is complete yet (no up event necessarily)
-        Log.i(TAG, "Long Press");
+        Log.i(TAG, "Long Press" + getTouchType(e));
     }
 
     @Override
     public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
     float distanceY) {
         // User attempted to scroll
-        Log.i(TAG, "Scroll");
+        Log.i(TAG, "Scroll" + getTouchType(e1));
         return false;
     }
 
@@ -52,27 +54,27 @@ public class GestureListener extends GestureDetector.SimpleOnGestureListener {
     public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
     float velocityY) {
         // Fling event occurred.  Notification of this one happens after an "up" event.
-        Log.i(TAG, "Fling");
+        Log.i(TAG, "Fling" + getTouchType(e1));
         return false;
     }
 
     @Override
     public void onShowPress(MotionEvent e) {
         // User performed a down event, and hasn't moved yet.
-        Log.i(TAG, "Show Press");
+        Log.i(TAG, "Show Press" + getTouchType(e));
     }
 
     @Override
     public boolean onDown(MotionEvent e) {
         // "Down" event - User touched the screen.
-        Log.i(TAG, "Down");
+        Log.i(TAG, "Down" + getTouchType(e));
         return false;
     }
 
     @Override
     public boolean onDoubleTap(MotionEvent e) {
         // User tapped the screen twice.
-        Log.i(TAG, "Double tap");
+        Log.i(TAG, "Double tap" + getTouchType(e));
         return false;
     }
 
@@ -81,7 +83,7 @@ public class GestureListener extends GestureDetector.SimpleOnGestureListener {
         // Since double-tap is actually several events which are considered one aggregate
         // gesture, there's a separate callback for an individual event within the doubletap
         // occurring.  This occurs for down, up, and move.
-        Log.i(TAG, "Event within double tap");
+        Log.i(TAG, "Event within double tap" + getTouchType(e));
         return false;
     }
 
@@ -89,8 +91,84 @@ public class GestureListener extends GestureDetector.SimpleOnGestureListener {
     public boolean onSingleTapConfirmed(MotionEvent e) {
         // A confirmed single-tap event has occurred.  Only called when the detector has
         // determined that the first tap stands alone, and is not part of a double tap.
-        Log.i(TAG, "Single tap confirmed");
+        Log.i(TAG, "Single tap confirmed" + getTouchType(e));
         return false;
     }
     // END_INCLUDE(init_gestureListener)
+
+
+    /**
+     * Returns a human-readable string describing the type of touch that triggered a MotionEvent.
+     */
+
+    private static String getTouchType(MotionEvent e){
+
+        String touchTypeDescription = " ";
+        int touchType = e.getToolType(0);
+
+        switch (touchType) {
+            case MotionEvent.TOOL_TYPE_FINGER:
+                touchTypeDescription += "(finger)";
+                break;
+            case MotionEvent.TOOL_TYPE_STYLUS:
+                touchTypeDescription += "(stylus, ";
+                //Get some additional information about the stylus touch
+                float stylusPressure = e.getPressure();
+                touchTypeDescription += "pressure: " + stylusPressure;
+
+                if(Build.VERSION.SDK_INT >= 21) {
+                    touchTypeDescription += ", buttons pressed: " + getButtonsPressed(e);
+                }
+
+                touchTypeDescription += ")";
+                break;
+            case MotionEvent.TOOL_TYPE_ERASER:
+                touchTypeDescription += "(eraser)";
+                break;
+            case MotionEvent.TOOL_TYPE_MOUSE:
+                touchTypeDescription += "(mouse)";
+                break;
+            default:
+                touchTypeDescription += "(unknown tool)";
+                break;
+        }
+
+        return touchTypeDescription;
+    }
+
+    /**
+     * Returns a human-readable string listing all the stylus buttons that were pressed when the
+     * input MotionEvent occurred.
+     */
+    @TargetApi(21)
+    private static String getButtonsPressed(MotionEvent e){
+        String buttons = "";
+
+        if(e.isButtonPressed(MotionEvent.BUTTON_PRIMARY)){
+            buttons += " primary";
+        }
+
+        if(e.isButtonPressed(MotionEvent.BUTTON_SECONDARY)){
+            buttons += " secondary";
+        }
+
+        if(e.isButtonPressed(MotionEvent.BUTTON_TERTIARY)){
+            buttons += " tertiary";
+        }
+
+        if(e.isButtonPressed(MotionEvent.BUTTON_BACK)){
+            buttons += " back";
+        }
+
+        if(e.isButtonPressed(MotionEvent.BUTTON_FORWARD)){
+            buttons += " forward";
+        }
+
+        if (buttons.equals("")){
+            buttons = "none";
+        }
+
+        return buttons;
+    }
+
 }