input/gestures/BasicGestureDetect/BasicGestureDetect/src/main/java/com/example/android/basicgesturedetect/GestureListener.java

/*
 * Copyright 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.example.android.basicgesturedetect;

import android.view.GestureDetector;
import android.view.MotionEvent;

import com.example.android.common.logger.Log;

public class GestureListener extends GestureDetector.SimpleOnGestureListener {

    public static final String TAG = "GestureListener";

    // BEGIN_INCLUDE(init_gestureListener)
    @Override
    public boolean onSingleTapUp(MotionEvent e) {
        // Up motion completing a single tap occurred.
        Log.i(TAG, "Single Tap Up");
        return false;
    }

    @Override
    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");
    }

    @Override
    public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
    float distanceY) {
        // User attempted to scroll
        Log.i(TAG, "Scroll");
        return false;
    }

    @Override
    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");
        return false;
    }

    @Override
    public void onShowPress(MotionEvent e) {
        // User performed a down event, and hasn't moved yet.
        Log.i(TAG, "Show Press");
    }

    @Override
    public boolean onDown(MotionEvent e) {
        // "Down" event - User touched the screen.
        Log.i(TAG, "Down");
        return false;
    }

    @Override
    public boolean onDoubleTap(MotionEvent e) {
        // User tapped the screen twice.
        Log.i(TAG, "Double tap");
        return false;
    }

    @Override
    public boolean onDoubleTapEvent(MotionEvent e) {
        // 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");
        return false;
    }

    @Override
    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");
        return false;
    }
    // END_INCLUDE(init_gestureListener)
}