187 lines
4.3 KiB
Objective-C
Executable File
187 lines
4.3 KiB
Objective-C
Executable File
//
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// NYSliderPopover.m
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// NYReader
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//
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// Created by Cassius Pacheco on 21/12/12.
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// Copyright (c) 2012 Nyvra Software. All rights reserved.
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//
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#import "NYSliderPopover.h"
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#import "NYPopover.h"
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@implementation NYSliderPopover
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- (instancetype)init
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{
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self = [super init];
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if (self) {
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}
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return self;
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}
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#pragma mark -
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#pragma mark UISlider methods
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- (NYPopover *)popover
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{
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if (_popover == nil) {
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//Default size, can be changed after
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[self addTarget:self action:@selector(updatePopoverFrame) forControlEvents:UIControlEventValueChanged];
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_popover = [[NYPopover alloc] initWithFrame:CGRectMake(self.frame.origin.x, self.frame.origin.y - 32, 40, 32)];
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[self updatePopoverFrame];
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_popover.alpha = 0;
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[self.superview addSubview:_popover];
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[self thumbimageView];
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[self createUI];
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}
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return _popover;
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}
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- (void)setValue:(float)value
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{
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[super setValue:value];
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[self updatePopoverFrame];
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}
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- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
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{
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[self updatePopoverFrame];
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[self showPopoverAnimated:YES];
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[super touchesBegan:touches withEvent:event];
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}
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- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
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{
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[self hidePopoverAnimated:YES];
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[super touchesEnded:touches withEvent:event];
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}
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- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
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{
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[self hidePopoverAnimated:YES];
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[super touchesCancelled:touches withEvent:event];
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}
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#pragma mark -
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#pragma mark - Popover methods
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- (void)updatePopoverFrame
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{
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//Inspired in Collin Ruffenach's ELCSlider https://github.com/elc/ELCSlider/blob/master/ELCSlider/ELCSlider.m#L53
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CGFloat minimum = self.minimumValue;
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CGFloat maximum = self.maximumValue;
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CGFloat value = self.value;
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if (minimum < 0.0) {
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value = self.value - minimum;
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maximum = maximum - minimum;
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minimum = 0.0;
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}
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CGFloat x = self.frame.origin.x;
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CGFloat maxMin = (maximum + minimum) / 2.0;
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x += (((value - minimum) / (maximum - minimum)) * self.frame.size.width) - (self.popover.frame.size.width / 2.0);
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if (value > maxMin) {
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value = (value - maxMin) + (minimum * 1.0);
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value = value / maxMin;
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value = value * 11.0;
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x = x - value;
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} else {
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value = (maxMin - value) + (minimum * 1.0);
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value = value / maxMin;
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value = value * 11.0;
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x = x + value;
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}
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CGRect popoverRect = self.popover.frame;
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popoverRect.origin.x = x;
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popoverRect.origin.y = self.frame.origin.y - popoverRect.size.height - 1;
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self.popover.frame = popoverRect;
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}
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- (void)showPopover
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{
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[self showPopoverAnimated:NO];
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}
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- (void)showPopoverAnimated:(BOOL)animated
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{
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if (animated) {
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[UIView animateWithDuration:0.25 animations:^{
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self.popover.alpha = 1.0;
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}];
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} else {
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self.popover.alpha = 1.0;
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}
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}
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- (void)hidePopover
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{
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[self hidePopoverAnimated:NO];
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}
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- (void)hidePopoverAnimated:(BOOL)animated
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{
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if (animated) {
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[UIView animateWithDuration:0.25 animations:^{
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self.popover.alpha = 0;
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}];
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} else {
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self.popover.alpha = 0;
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}
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}
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-(void)createUI{
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self.minimumValue = 0.0;
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self.maximumValue = 1.0;
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self.minimumTrackTintColor = GIGARGB(216,216, 216, 1);
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self.maximumTrackTintColor = GIGARGB(216,216, 216, 1);
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}
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-(CGRect)trackRectForBounds:(CGRect)bounds
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{
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bounds.origin.x = bounds.origin.x;
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bounds.origin.y = bounds.origin.y;
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bounds.size.height = bounds.size.height;
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bounds.size.width = bounds.size.width;
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return bounds;
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}
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-(void)thumbimageView{
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[self setThumbImage:[self OriginImage:[UIImage imageNamed:@"btn_slider_thumb"] scaleToSize:CGSizeMake(40, 40)] forState:UIControlStateNormal];
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[self setThumbImage:[self OriginImage:[UIImage imageNamed:@"btn_slider_thumb"] scaleToSize:CGSizeMake(40, 40)] forState:UIControlStateHighlighted];
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}
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-(UIImage*) OriginImage:(UIImage*)image scaleToSize:(CGSize)size
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{
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UIGraphicsBeginImageContext(size);//size为CGSize类型，即你所需要的图片尺寸
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[image drawInRect:CGRectMake(0,0, size.width, size.height)];
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UIImage* scaledImage =UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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return scaledImage;
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}
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@end
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