55 lines
1.5 KiB
Objective-C
Executable File
55 lines
1.5 KiB
Objective-C
Executable File
//
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// GKDYPanGestureRecognizer.h
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// GKDYVideo
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//
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// Created by gaokun on 2019/7/31.
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// Copyright © 2019 QuintGao. All rights reserved.
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//
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#import "GKDYPanGestureRecognizer.h"
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int const static kDirectionPanThreshold = 5;
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@interface GKDYPanGestureRecognizer()
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@property (nonatomic, assign) BOOL drag;
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@property (nonatomic, assign) int moveX;
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@property (nonatomic, assign) int moveY;
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@end
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@implementation GKDYPanGestureRecognizer
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- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
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[super touchesMoved:touches withEvent:event];
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if (self.state == UIGestureRecognizerStateFailed) return;
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CGPoint nowPoint = [[touches anyObject] locationInView:self.view];
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CGPoint prevPoint = [[touches anyObject] previousLocationInView:self.view];
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_moveX += prevPoint.x - nowPoint.x;
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_moveY += prevPoint.y - nowPoint.y;
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if (!_drag) {
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if (abs(_moveX) > kDirectionPanThreshold) {
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if (_direction == GKDYPanGestureRecognizerDirectionVertical) {
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self.state = UIGestureRecognizerStateFailed;
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}else {
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_drag = YES;
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}
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}else if (abs(_moveY) > kDirectionPanThreshold) {
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if (_direction == GKDYPanGestureRecognizerDirectionHorizontal) {
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self.state = UIGestureRecognizerStateFailed;
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}else {
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_drag = YES;
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}
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}
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}
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}
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- (void)reset {
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[super reset];
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_drag = NO;
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_moveX = 0;
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_moveY = 0;
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}
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@end
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