1 /* 2 * Copyright (C) 2016 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 #import "WALTTouch.h" 18 19 @implementation WALTTouch 20 - (instancetype)initWithEvent:(UIEvent *)event { 21 if ((self = [super init])) { 22 if ([event allTouches].count > 1) { 23 NSLog(@"Multiple touches in event; taking any."); 24 } 25 self.kernelTime = event.timestamp; 26 27 UITouch *touch = [[event allTouches] anyObject]; 28 self.phase = touch.phase; 29 if ([touch respondsToSelector:@selector(preciseLocationInView:)]) { // iOS 9.1+ 30 self.location = [touch preciseLocationInView:nil]; 31 } else { 32 self.location = [touch locationInView:nil]; 33 } 34 } 35 return self; 36 } 37 @end 38
