98 lines
3.0 KiB
Objective-C
98 lines
3.0 KiB
Objective-C
#import "TDToastView.h"
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@implementation TDToastView
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{
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UITextView *_textView;
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}
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#define TOAST_HORIZONTAL_PADDING 20.0
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#define TOAST_VERTICAL_PADDING 15.0
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- (instancetype)initWithFrame:(CGRect)frame {
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if ((self = [super initWithFrame:frame])) {
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_textView = [[UITextView alloc] initWithFrame:CGRectZero];
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_textView.opaque = NO;
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_textView.editable = NO;
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_textView.selectable = NO;
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_textView.textColor = [UIColor whiteColor];
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_textView.backgroundColor = [UIColor clearColor];
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_textView.userInteractionEnabled = YES;
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[self addSubview:_textView];
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self.alpha = 0.9;
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self.backgroundColor = [UIColor darkGrayColor];
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self.layer.cornerRadius = 20.0;
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self.opaque = NO;
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self.userInteractionEnabled = YES;
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[self addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(_tapHandler:)]];
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}
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return self;
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}
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+ (instancetype)showInWindow:(UIWindow *)window text:(NSString *)text duration:(NSTimeInterval)duration {
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TDToastView *toast = [[self alloc] initWithFrame:CGRectZero];
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toast.text = text;
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[toast showInWindow:window duration:duration];
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return toast;
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}
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- (void)showInWindow:(UIWindow *)window duration:(NSTimeInterval)duration {
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if (window == nil) {
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return;
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}
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CGRect windowBounds = CGRectInset(window.bounds, 20.0, 20.0);
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CGRect toastBounds = CGRectZero;
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toastBounds.size = [self sizeThatFits:windowBounds.size];
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self.bounds = toastBounds;
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self.center = CGPointMake(CGRectGetMidX(windowBounds), CGRectGetMidY(windowBounds));
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CGFloat alpha = self.alpha;
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self.alpha = 0.0;
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[window addSubview:self];
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[UIView animateWithDuration:0.3 animations:^{
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self.alpha = alpha;
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} completion:^(BOOL finishedShowing) {
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dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(duration * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
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[self dismiss];
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});
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}];
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}
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- (NSString *)text {
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return _textView.text;
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}
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- (void)setText:(NSString *)text {
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_textView.text = text;
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}
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- (void)dismiss {
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if (!self.superview) {
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return;
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}
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[UIView animateWithDuration:0.3 animations:^{
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self.alpha = 0.0;
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} completion:^(BOOL finishedHiding) {
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[self removeFromSuperview];
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}];
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}
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- (void)_tapHandler:(UITapGestureRecognizer *)tapGestureRecognizer {
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[self dismiss];
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}
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- (void)layoutSubviews {
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[super layoutSubviews];
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_textView.frame = CGRectInset(self.bounds, TOAST_HORIZONTAL_PADDING, TOAST_VERTICAL_PADDING);
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}
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- (CGSize)sizeThatFits:(CGSize)size {
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CGSize textConstrainedSize = CGSizeMake(size.width - 2 * TOAST_HORIZONTAL_PADDING,
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size.height - 2 * TOAST_VERTICAL_PADDING);
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CGSize textSize = [_textView sizeThatFits:textConstrainedSize];
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CGFloat width = MIN(size.width, textSize.width + 2 * TOAST_HORIZONTAL_PADDING);
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CGFloat height = MIN(size.height, textSize.height + 2 * TOAST_VERTICAL_PADDING);
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return CGSizeMake(width, height);
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}
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@end
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