//
// UIView+Toast.m
// tinghao
//
// Created by Luo yuntao on 14-4-21.
// Copyright © 2019年 YJJ. All rights reserved.
//
#import "UIView+Toast.h"
#import <QuartzCore/QuartzCore.h>
#import <objc/runtime.h>
// general appearance
static const CGFloat CSToastMaxWidth = 0.8; // 80% of parent view width
static const CGFloat CSToastMaxHeight = 0.8; // 80% of parent view height
static const CGFloat CSToastHorizontalPadding = 10.0;
static const CGFloat CSToastVerticalPadding = 15.0;
static const CGFloat CSToastCornerRadius = 3.5;
static const CGFloat CSToastOpacity = 0.8;
static const CGFloat CSToastFontSize = 16.0;
static const CGFloat CSToastMaxTitleLines = 1;
static const CGFloat CSToastMaxMessageLines = 0;
static const NSTimeInterval CSToastFadeDuration = 0.2;
static const CGFloat CSToastAlpha = 0.75;
// display duration and position
static const NSString * CSToastDefaultPosition = @"center";
static const NSTimeInterval CSToastDefaultDuration = 2;
// image view size
static const CGFloat CSToastImageViewWidth = 24;
static const CGFloat CSToastImageViewHeight = 24;
// interaction
static const BOOL CSToastHidesOnTap = YES; // excludes activity views
// associative reference keys
static const NSString * CSToastTimerKey = @"CSToastTimerKey";
@interface UIView (ToastPrivate)
- (void)hideToast:(UIView *)toast;
- (void)toastTimerDidFinish:(NSTimer *)timer;
- (void)handleToastTapped:(UITapGestureRecognizer *)recognizer;
- (CGPoint)centerPointForPosition:(id)position withToast:(UIView *)toast;
- (UIView *)viewForMessage:(NSString *)message title:(NSString *)title image:(UIImage *)image;
- (CGSize)sizeForString:(NSString *)string font:(UIFont *)font constrainedToSize:(CGSize)constrainedSize lineBreakMode:(NSLineBreakMode)lineBreakMode;
@end
@implementation UIView (Toast)
#pragma mark - Toast Methods
- (void)makeNetToast:(NSString *)message{
if (message) {
[self makeToast:message duration:CSToastDefaultDuration position:@"center" image:[UIImage imageNamed:@"toast_error"]];
}
}
- (void)makeToast:(NSString *)message {
if (message && [message length]) {
[self makeToast:message duration:CSToastDefaultDuration position:CSToastDefaultPosition];
}
}
- (void)makeToast:(NSString *)message duration:(NSTimeInterval)duration position:(id)position {
if (message) {
UIView *toast = [self viewForMessage:message title:nil image:nil];
[self showToast:toast duration:duration position:position];
}
}
- (void)makeToast:(NSString *)message duration:(NSTimeInterval)duration position:(id)position title:(NSString *)title {
if (message) {
UIView *toast = [self viewForMessage:message title:title image:nil];
[self showToast:toast duration:duration position:position];
}
}
- (void)makeToast:(NSString *)message duration:(NSTimeInterval)duration position:(id)position image:(UIImage *)image {
if (message) {
UIView *toast = [self viewForMessage:message title:nil image:image];
[self showToast:toast duration:duration position:position];
}
}
- (void)makeToast:(NSString *)message duration:(NSTimeInterval)duration position:(id)position title:(NSString *)title image:(UIImage *)image {
if (message) {
UIView *toast = [self viewForMessage:message title:title image:image];
[self showToast:toast duration:duration position:position];
}
}
- (void)showToast:(UIView *)toast {
[self showToast:toast duration:CSToastDefaultDuration position:CSToastDefaultPosition];
}
- (void)showToast:(UIView *)toast duration:(NSTimeInterval)duration position:(id)point {
toast.center = [self centerPointForPosition:point withToast:toast];
toast.alpha = 0.0;
if (CSToastHidesOnTap) {
UITapGestureRecognizer *recognizer = [[[UITapGestureRecognizer alloc] initWithTarget:toast action:@selector(handleToastTapped:)]autorelease];
[toast addGestureRecognizer:recognizer];
toast.userInteractionEnabled = YES;
toast.exclusiveTouch = YES;
}
[self addSubview:toast];
[UIView animateWithDuration:CSToastFadeDuration
delay:0.0
options:(UIViewAnimationOptionCurveEaseOut | UIViewAnimationOptionAllowUserInteraction)
animations:^{
toast.alpha = 1.0;
} completion:^(BOOL finished) {
NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:duration target:self selector:@selector(toastTimerDidFinish:) userInfo:toast repeats:NO];
// associate the timer with the toast view
objc_setAssociatedObject (toast, &CSToastTimerKey, timer, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}];
}
- (void)hideToast:(UIView *)toast {
[UIView animateWithDuration:CSToastFadeDuration
delay:0.0
options:(UIViewAnimationOptionCurveEaseIn | UIViewAnimationOptionBeginFromCurrentState)
animations:^{
toast.alpha = 0.0;
} completion:^(BOOL finished) {
[toast removeFromSuperview];
}];
}
#pragma mark - Events
- (void)toastTimerDidFinish:(NSTimer *)timer {
[self hideToast:(UIView *)timer.userInfo];
}
- (void)handleToastTapped:(UITapGestureRecognizer *)recognizer {
NSTimer *timer = (NSTimer *)objc_getAssociatedObject(self, &CSToastTimerKey);
[timer invalidate];
[self hideToast:recognizer.view];
}
#pragma mark - Helpers
- (CGPoint)centerPointForPosition:(id)point withToast:(UIView *)toast {
if([point isKindOfClass:[NSString class]]) {
// convert string literals @"top", @"bottom", @"center", or any point wrapped in an NSValue object into a CGPoint
if([point caseInsensitiveCompare:@"top"] == NSOrderedSame) {
return CGPointMake(self.bounds.size.width/2, (toast.frame.size.height / 2) + CSToastVerticalPadding);
} else if([point caseInsensitiveCompare:@"bottom"] == NSOrderedSame) {
return CGPointMake(self.bounds.size.width/2, (self.bounds.size.height - (toast.frame.size.height / 2)) - CSToastVerticalPadding);
} else if([point caseInsensitiveCompare:@"center"] == NSOrderedSame) {
return CGPointMake(self.bounds.size.width / 2, self.bounds.size.height * 0.4);
}
} else if ([point isKindOfClass:[NSValue class]]) {
return [point CGPointValue];
}
DLog(@"Warning: Invalid position for toast.");
return [self centerPointForPosition:CSToastDefaultPosition withToast:toast];
}
- (CGSize)sizeForString:(NSString *)string font:(UIFont *)font constrainedToSize:(CGSize)constrainedSize lineBreakMode:(NSLineBreakMode)lineBreakMode {
NSMutableParagraphStyle *paragraphStyle = [[[NSMutableParagraphStyle alloc] init]autorelease];
paragraphStyle.lineBreakMode = lineBreakMode;
NSDictionary *attributes = @{NSFontAttributeName:font, NSParagraphStyleAttributeName:paragraphStyle};
CGRect boundingRect = [string boundingRectWithSize:constrainedSize options:NSStringDrawingUsesLineFragmentOrigin attributes:attributes context:nil];
return CGSizeMake(ceilf(boundingRect.size.width), ceilf(boundingRect.size.height));
}
- (UIView *)viewForMessage:(NSString *)message title:(NSString *)title image:(UIImage *)image {
// sanity
if((message == nil) && (title == nil) && (image == nil)) return nil;
// dynamically build a toast view with any combination of message, title, & image.
UILabel *messageLabel = nil;
UILabel *titleLabel = nil;
UIImageView *imageView = nil;
// create the parent view
UIView *wrapperView = [[[UIView alloc] init]autorelease];
wrapperView.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin);
wrapperView.layer.cornerRadius = CSToastCornerRadius;
wrapperView.alpha = CSToastAlpha;
// wrapperView.backgroundColor=UIColorFromRGB(0x5D5D71);
wrapperView.backgroundColor = [UIColor colorWithRed:0/255.0 green:0/255.0 blue:0/255.0 alpha:0.70];
//添加kuan
// wrapperView.layer.borderColor = [UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2].CGColor;
//
// [wrapperView.layer setBorderWidth:1.0f];
//
// [wrapperView.layer setMasksToBounds:YES];
if(image != nil) {
imageView = [[[UIImageView alloc] initWithImage:image]autorelease];
imageView.contentMode = UIViewContentModeScaleAspectFit;
// imageView.frame = CGRectMake(CSToastHorizontalPadding, CSToastVerticalPadding, CSToastImageViewWidth, CSToastImageViewHeight);
imageView.center = CGPointMake(wrapperView.center.x, imageView.center.y);
}
CGFloat imageWidth, imageHeight, imageLeft,imageTop;
// the imageView frame values will be used to size & position the other views
if(imageView != nil) {
imageWidth = imageView.bounds.size.width;
imageHeight = imageView.bounds.size.height;
// imageLeft = CSToastHorizontalPadding;
imageTop = CSToastVerticalPadding;
} else {
imageWidth = imageHeight = imageLeft = imageTop = 0.0;
}
if (title != nil) {
titleLabel = [[[UILabel alloc] init]autorelease];
titleLabel.numberOfLines = CSToastMaxTitleLines;
titleLabel.font = [UIFont systemFontOfSize:CSToastFontSize];
titleLabel.textAlignment = NSTextAlignmentCenter;
titleLabel.lineBreakMode = NSLineBreakByWordWrapping;
titleLabel.textColor = UIColorFromRGB(0xFFFFFF);
titleLabel.backgroundColor = [UIColor clearColor];
titleLabel.alpha = 1.0;
titleLabel.text = title;
// size the title label according to the length of the text
CGSize maxSizeTitle = CGSizeMake((self.bounds.size.width * CSToastMaxWidth) - imageWidth, self.bounds.size.height * CSToastMaxHeight);
CGSize expectedSizeTitle = [self sizeForString:title font:titleLabel.font constrainedToSize:maxSizeTitle lineBreakMode:titleLabel.lineBreakMode];
titleLabel.frame = CGRectMake(0.0, 0.0, expectedSizeTitle.width, expectedSizeTitle.height);
}
if (message != nil) {
messageLabel = [[[UILabel alloc] init]autorelease];
messageLabel.numberOfLines = CSToastMaxMessageLines;
messageLabel.font = [UIFont systemFontOfSize:CSToastFontSize];
messageLabel.lineBreakMode = NSLineBreakByWordWrapping;
messageLabel.textColor = UIColorFromRGB(0xFFFFFF);
messageLabel.backgroundColor = [UIColor clearColor];
messageLabel.alpha = 1.0;
messageLabel.text = message;
messageLabel.textAlignment = NSTextAlignmentCenter;
// size the message label according to the length of the text
CGSize maxSizeMessage = CGSizeMake((self.bounds.size.width * CSToastMaxWidth), self.bounds.size.height * CSToastMaxHeight);
CGSize expectedSizeMessage = [self sizeForString:message font:messageLabel.font constrainedToSize:maxSizeMessage lineBreakMode:messageLabel.lineBreakMode];
messageLabel.frame = CGRectMake(0.0, 0.0, expectedSizeMessage.width, expectedSizeMessage.height);
}
// titleLabel frame values
CGFloat titleWidth, titleHeight, titleTop, titleLeft;
if(titleLabel != nil) {
titleWidth = titleLabel.bounds.size.width;
titleHeight = titleLabel.bounds.size.height;
titleTop = CSToastVerticalPadding;
titleLeft = CSToastHorizontalPadding;
} else {
titleWidth = titleHeight = titleTop = titleLeft = 0.0;
}
// messageLabel frame values
CGFloat messageWidth, messageHeight, messageLeft, messageTop;
if(messageLabel != nil) {
messageWidth = messageLabel.bounds.size.width;
messageHeight = messageLabel.bounds.size.height;
messageLeft = CSToastHorizontalPadding;
if (!title) {
if (!imageView) {
messageTop = CSToastVerticalPadding;
}else{
messageTop = imageHeight + CSToastVerticalPadding + imageTop;
}
}else{
if (!imageView) {
messageTop = titleTop + titleHeight +CSToastVerticalPadding;
}else{
messageTop = imageHeight + CSToastVerticalPadding + imageTop + titleTop + titleHeight +CSToastVerticalPadding;
}
}
} else {
messageWidth = messageHeight = messageLeft = messageTop = 0.0;
}
CGFloat longerWidth = MAX(titleWidth, messageWidth);
CGFloat longerLeft = MAX(titleLeft, messageLeft);
// wrapper width uses the longerWidth or the image width, whatever is larger. same logic applies to the wrapper height
CGFloat wrapperWidth = MAX((imageWidth + (CSToastHorizontalPadding * 2)), (longerLeft + longerWidth + CSToastHorizontalPadding));
CGFloat wrapperHeight = MAX((messageTop + messageHeight + CSToastVerticalPadding), (imageHeight + (CSToastVerticalPadding * 2)));
wrapperView.frame = CGRectMake(0.0, 0.0,wrapperWidth , wrapperHeight);
if(titleLabel != nil) {
titleLabel.frame = CGRectMake(titleLeft, titleTop, titleWidth, titleHeight);
titleLabel.center = CGPointMake(wrapperView.frame.size.width/2, titleTop + titleHeight/2);
[wrapperView addSubview:titleLabel];
}
if(messageLabel != nil) {
if (wrapperWidth - messageWidth > 2*CSToastHorizontalPadding) {
messageLeft = (wrapperWidth - messageWidth)/2;
}
messageLabel.frame = CGRectMake(messageLeft, messageTop, messageWidth, messageHeight);
[wrapperView addSubview:messageLabel];
}
if(imageView != nil) {
imageView.center = CGPointMake(wrapperView.frame.size.width/2, imageTop + imageHeight/2);
[wrapperView addSubview:imageView];
}
return wrapperView;
}
- (void)makeToast:(NSString *)message andPostion:(PositionSite)site{
if (site == 0) {
[self makeToast:message duration:CSToastDefaultDuration position:@"top"];
}else if (site == 1){
[self makeToast:message duration:CSToastDefaultDuration position:@"center"];
}else{
[self makeToast:message duration:CSToastDefaultDuration position:@"bottom"];
}
}
@end
