1 /* 2 * Copyright 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.interactivechart; 18 19 import android.annotation.TargetApi; 20 import android.os.Build; 21 import android.view.ScaleGestureDetector; 22 23 /** 24 * A utility class for using {@link android.view.ScaleGestureDetector} in a backward-compatible 25 * fashion. 26 */ 27 public class ScaleGestureDetectorCompat { 28 /** 29 * Disallow instantiation. 30 */ 31 private ScaleGestureDetectorCompat() { 32 } 33 34 /** 35 * @see android.view.ScaleGestureDetector#getCurrentSpanX() 36 */ 37 @TargetApi(Build.VERSION_CODES.HONEYCOMB) 38 public static float getCurrentSpanX(ScaleGestureDetector scaleGestureDetector) { 39 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { 40 return scaleGestureDetector.getCurrentSpanX(); 41 } else { 42 return scaleGestureDetector.getCurrentSpan(); 43 } 44 } 45 46 /** 47 * @see android.view.ScaleGestureDetector#getCurrentSpanY() 48 */ 49 @TargetApi(Build.VERSION_CODES.HONEYCOMB) 50 public static float getCurrentSpanY(ScaleGestureDetector scaleGestureDetector) { 51 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { 52 return scaleGestureDetector.getCurrentSpanY(); 53 } else { 54 return scaleGestureDetector.getCurrentSpan(); 55 } 56 } 57 } 58
