72 lines
2.1 KiB
Mathematica
72 lines
2.1 KiB
Mathematica
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// Copyright (c) 2024 Tencent. All rights reserved.
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// Author: eddardliu
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#import "TUIMultimediaFakeAudioWaveView.h"
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#import <Masonry/Masonry.h>
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#import "TUIMultimediaPlugin/TUIMultimediaCommon.h"
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#import "TUIMultimediaPlugin/TUIMultimediaGeometry.h"
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@interface TUIMultimediaFakeAudioWaveView () {
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dispatch_source_t _timer;
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}
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@end
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@implementation TUIMultimediaFakeAudioWaveView
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- (id)initWithFrame:(CGRect)frame {
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self = [super initWithFrame:frame];
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if (self != nil) {
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self.backgroundColor = UIColor.clearColor;
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_color = UIColor.grayColor;
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_lineWidth = 1.5;
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_lineSpacing = 0.5;
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_animeInterval = 0.2;
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_enabled = NO;
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_timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, dispatch_get_main_queue());
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dispatch_source_set_timer(_timer, DISPATCH_TIME_NOW, _animeInterval * NSEC_PER_SEC, _animeInterval * NSEC_PER_SEC);
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dispatch_source_set_event_handler(_timer, ^{
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[self setNeedsDisplay];
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});
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dispatch_activate(_timer);
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dispatch_suspend(_timer);
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}
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return self;
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}
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- (void)drawRect:(CGRect)rect {
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[super drawRect:rect];
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[_color set];
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CGFloat x = 0;
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CGFloat selfWidth = self.bounds.size.width;
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CGFloat selfHeight = self.bounds.size.height;
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while (x + _lineWidth < selfWidth) {
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CGFloat h = (CGFloat)arc4random() / UINT32_MAX * selfHeight;
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UIBezierPath *path = [UIBezierPath bezierPathWithRect:CGRectMake(x, selfHeight - h, _lineWidth, selfHeight)];
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[path fill];
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x += _lineWidth + _lineSpacing;
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}
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}
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#pragma mark - Properties
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- (void)setColor:(UIColor *)color {
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_color = color;
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[self setNeedsDisplay];
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}
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- (void)setEnabled:(BOOL)enabled {
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if (_enabled && !enabled) {
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dispatch_suspend(_timer);
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} else if (!_enabled && enabled) {
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dispatch_resume(_timer);
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}
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_enabled = enabled;
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}
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- (void)setAnimeInterval:(CGFloat)animeInterval {
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_animeInterval = animeInterval;
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dispatch_source_set_timer(_timer, DISPATCH_TIME_NOW, _animeInterval * NSEC_PER_SEC, _animeInterval * NSEC_PER_SEC);
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}
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@end
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