ibireme
72 lines
2.8 KiB
Objective-C
72 lines
2.8 KiB
Objective-C
//
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// YYImageExampleUtils.m
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// YYKitExample
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//
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// Created by ibireme on 15/7/20.
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// Copyright (c) 2015 ibireme. All rights reserved.
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//
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#import "YYImageExampleHelper.h"
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#import "YYImage.h"
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#import "UIView+YYAdd.h"
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#import "UIGestureRecognizer+YYAdd.h"
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#import <ImageIO/ImageIO.h>
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#import <Accelerate/Accelerate.h>
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//#import <bpg/libbpg.h>
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@implementation YYImageExampleHelper
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+ (void)addTapControlToAnimatedImageView:(YYAnimatedImageView *)view {
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if (!view) return;
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view.userInteractionEnabled = YES;
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__weak typeof(view) _view = view;
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UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithActionBlock:^(id sender) {
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if ([_view isAnimating]) [_view stopAnimating];
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else [_view startAnimating];
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// add a "bounce" animation
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UIViewAnimationOptions op = UIViewAnimationOptionCurveEaseInOut | UIViewAnimationOptionAllowAnimatedContent | UIViewAnimationOptionBeginFromCurrentState;
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[UIView animateWithDuration:0.1 delay:0 options:op animations:^{
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[_view.layer setValue:@(0.97) forKeyPath:@"transform.scale"];
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} completion:^(BOOL finished) {
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[UIView animateWithDuration:0.1 delay:0 options:op animations:^{
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[_view.layer setValue:@(1.008) forKeyPath:@"transform.scale"];
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} completion:^(BOOL finished) {
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[UIView animateWithDuration:0.1 delay:0 options:op animations:^{
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[_view.layer setValue:@(1) forKeyPath:@"transform.scale"];
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} completion:NULL];
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}];
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}];
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}];
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[view addGestureRecognizer:tap];
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}
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+ (void)addPanControlToAnimatedImageView:(YYAnimatedImageView *)view {
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if (!view) return;
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view.userInteractionEnabled = YES;
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__weak typeof(view) _view = view;
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__block BOOL previousIsPlaying;
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UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithActionBlock:^(id sender) {
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UIImage<YYAnimatedImage> *image = (id)_view.image;
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if (![image conformsToProtocol:@protocol(YYAnimatedImage)]) return;
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UIPanGestureRecognizer *gesture = sender;
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CGPoint p = [gesture locationInView:gesture.view];
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CGFloat progress = p.x / gesture.view.width;
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if (gesture.state == UIGestureRecognizerStateBegan) {
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previousIsPlaying = [_view isAnimating];
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[_view stopAnimating];
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_view.currentAnimatedImageIndex = image.animatedImageFrameCount * progress;
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} else if (gesture.state == UIGestureRecognizerStateEnded ||
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gesture.state == UIGestureRecognizerStateCancelled) {
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if (previousIsPlaying) [_view startAnimating];
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} else {
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_view.currentAnimatedImageIndex = image.animatedImageFrameCount * progress;
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}
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}];
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[view addGestureRecognizer:pan];
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}
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@end
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