61 lines
1.8 KiB
Java
61 lines
1.8 KiB
Java
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.dialer.util;
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import android.graphics.Point;
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/**
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* Singleton class to keep track of where the user last touched the screen.
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*
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* <p>Used to pass on to the InCallUI for animation.
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*/
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public class TouchPointManager {
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public static final String TOUCH_POINT = "touchPoint";
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private static TouchPointManager instance = new TouchPointManager();
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private Point point = new Point();
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/** Private constructor. Instance should only be acquired through getRunningInstance(). */
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private TouchPointManager() {}
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public static TouchPointManager getInstance() {
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return instance;
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}
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public Point getPoint() {
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return point;
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}
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public void setPoint(int x, int y) {
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point.set(x, y);
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}
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/**
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* When a point is initialized, its value is (0,0). Since it is highly unlikely a user will touch
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* at that exact point, if the point in TouchPointManager is (0,0), it is safe to assume that the
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* TouchPointManager has not yet collected a touch.
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*
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* @return True if there is a valid point saved. Define a valid point as any point that is not
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* (0,0).
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*/
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public boolean hasValidPoint() {
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return point.x != 0 || point.y != 0;
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}
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}
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