67 lines
2.4 KiB
Objective-C
67 lines
2.4 KiB
Objective-C
//
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// KBDirectionIndicatorView.m
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// keyBoard
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//
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// Created by Mac on 2025/11/5.
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//
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#import "KBDirectionIndicatorView.h"
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#import "UIView+HW_Frame.h"
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@interface KBDirectionIndicatorView ()
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@property (nonatomic, strong) UIView *leftView;
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@property (nonatomic, strong) UIView *rightView;
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@end
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@implementation KBDirectionIndicatorView
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- (instancetype)initWithFrame:(CGRect)frame {
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self = [super initWithFrame:CGRectZero];
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if (self) {
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self.backgroundColor = UIColor.clearColor;
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_leftView = [UIView new];
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_rightView = [UIView new];
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_leftView.backgroundColor = _rightView.backgroundColor = [UIColor colorWithWhite:0.85 alpha:1];
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[self addSubview:_leftView];
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[self addSubview:_rightView];
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}
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return self;
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}
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- (CGSize)indicatorSize { return CGSizeMake(34, 13); }
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- (void)setupSubviews {
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CGSize size = [self indicatorSize];
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self.hw_size = size;
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CGFloat h = 5, c = h/2.0;
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_leftView.frame = CGRectMake(0, 0, size.width/2 + c, h);
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_rightView.frame = CGRectMake(size.width/2 - c, 0, size.width/2 + c, h);
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_leftView.hw_centerY = _rightView.hw_centerY = self.hw_height/2.0;
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_leftView.layer.cornerRadius = MIN(_leftView.hw_width, _leftView.hw_height)/2;
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_rightView.layer.cornerRadius = MIN(_rightView.hw_width, _rightView.hw_height)/2;
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}
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// 默认库会在很多时机传 HWIndicatorStateNormal，这里忽略，不改变我们基于状态的朝向
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- (void)didChangeToState:(HWIndicatorState)state {
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// no-op 或者根据需要做轻微弹性动画
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}
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- (void)applyPresentationState:(PresentationState)state {
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CGFloat angle = (CGFloat)(20.0 * M_PI / 180.0);
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void (^animate)(void) = ^{
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switch (state) {
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case PresentationStateShort: // 最低：指向上(∧)
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self.leftView.transform = CGAffineTransformMakeRotation(-angle);
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self.rightView.transform = CGAffineTransformMakeRotation(angle);
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break;
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case PresentationStateLong: // 最高：指向下(∨)
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default:
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self.leftView.transform = CGAffineTransformMakeRotation(angle);
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self.rightView.transform = CGAffineTransformMakeRotation(-angle);
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break;
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}
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};
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[UIView animateWithDuration:0.25 delay:0 options:UIViewAnimationOptionBeginFromCurrentState|UIViewAnimationOptionCurveEaseOut animations:animate completion:nil];
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}
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@end
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