376 lines
14 KiB
Objective-C
376 lines
14 KiB
Objective-C
//
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// Toast.m
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// Created by EonaCat
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// Copyright 2013 EonaCat. All rights reserved.
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//
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#import "Toast.h"
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#import <QuartzCore/QuartzCore.h>
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#import <AudioToolbox/AudioToolbox.h>
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#import <objc/runtime.h>
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#define kMaxWidth 0.8
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#define kMaxHeight 0.8
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#define kHorizontalPadding 10.0
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#define kVerticalPadding 10.0
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#define kCornerRadius 10.0
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#define kOpacity 0.8
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#define kFontSize 16.0
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#define kMaxTitleLines 999
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#define kMaxMessageLines 999
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#define kFadeDuration 0.2
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#define kDisplayShadow YES
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#define kDefaultLength 3.0
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#define kDefaultPosition @"bottom"
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#define kImageWidth 80.0
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#define kImageHeight 80.0
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#define kActivityWidth 100.0
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#define kActivityHeight 100.0
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#define kActivityDefaultPosition @"center"
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#define kActivityTag 91325
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static NSString *kDurationKey = @"CSToastDurationKey";
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@interface UIView (ToastPrivate)
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- (CGPoint)getPositionFor:(id)position toast:(UIView *)toast;
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- (UIView *)makeViewForMessage:(NSString *)message title:(NSString *)title image:(UIImage *)image;
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@end
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@implementation UIView (Toast)
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#pragma mark - Toast Methods
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- (void)makeToast:(NSString *)message {
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[self makeToast:message duration:kDefaultLength position:kDefaultPosition];
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}
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- (void)makeToast:(NSString *)message duration:(CGFloat)interval position:(id)position {
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UIView *toast = [self makeViewForMessage:message title:nil image:nil];
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[self showToast:toast duration:interval position:position];
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}
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- (void)makeToast:(NSString *)message duration:(CGFloat)interval position:(id)position title:(NSString *)title {
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UIView *toast = [self makeViewForMessage:message title:title image:nil];
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[self showToast:toast duration:interval position:position];
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}
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- (void)makeToast:(NSString *)message duration:(CGFloat)interval position:(id)position image:(UIImage *)image {
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UIView *toast = [self makeViewForMessage:message title:nil image:image];
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[self showToast:toast duration:interval position:position];
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}
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- (void)makeToast:(NSString *)message duration:(CGFloat)interval position:(id)position title:(NSString *)title image:(UIImage *)image {
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UIView *toast = [self makeViewForMessage:message title:title image:image];
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[self showToast:toast duration:interval position:position];
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}
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- (void)showToast:(UIView *)toast {
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[self showToast:toast duration:kDefaultLength position:kDefaultPosition];
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}
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- (void)showToast:(UIView *)toast duration:(CGFloat)interval position:(id)point {
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// Display a view for a given duration & position.
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CGPoint toastPoint = [self getPositionFor:point toast:toast];
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// use an associative reference to associate the toast view with the display interval
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objc_setAssociatedObject (toast, &kDurationKey, [NSNumber numberWithFloat:interval], OBJC_ASSOCIATION_RETAIN);
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[toast setCenter:toastPoint];
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[toast setAlpha:0.0];
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[self addSubview:toast];
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#if !__has_feature(objc_arc)
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[UIView beginAnimations:@"fade_in" context:toast];
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#else
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[UIView beginAnimations:@"fade_in" context:(__bridge void*)toast];
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#endif
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[UIView setAnimationDuration:kFadeDuration];
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SystemSoundID mySound = [self createSoundID: @"toast.wav"];
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AudioServicesPlaySystemSound(mySound);
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[UIView setAnimationDelegate:self];
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[UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)];
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[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
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[toast setAlpha:1.0];
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[UIView commitAnimations];
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}
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-(SystemSoundID) createSoundID: (NSString*)name
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{
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NSString *path = [NSString stringWithFormat: @"%@/%@",
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[[NSBundle mainBundle] resourcePath], name];
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NSURL* filePath = [NSURL fileURLWithPath: path isDirectory: NO];
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SystemSoundID soundID;
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AudioServicesCreateSystemSoundID((__bridge CFURLRef)filePath, &soundID);
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NSLog(@"%@, %@", path, filePath);
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return soundID;
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}
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#pragma mark - Toast Activity Methods
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- (void)makeToastActivity {
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[self makeToastActivity:kActivityDefaultPosition];
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}
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- (void)makeToastActivity:(id)position {
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// prevent more than one activity view
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UIView *existingToast = [self viewWithTag:kActivityTag];
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if (existingToast != nil) {
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[existingToast removeFromSuperview];
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}
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UIView *activityContainer = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kActivityWidth, kActivityHeight)];
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#if !__has_feature(objc_arc)
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[activityContainer autorelease];
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#endif
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[activityContainer setCenter:[self getPositionFor:position toast:activityContainer]];
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[activityContainer setBackgroundColor:[[UIColor blackColor] colorWithAlphaComponent:kOpacity]];
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[activityContainer setAlpha:0.0];
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[activityContainer setTag:kActivityTag];
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[activityContainer setAutoresizingMask:(UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin)];
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[activityContainer.layer setCornerRadius:kCornerRadius];
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if (kDisplayShadow) {
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[activityContainer.layer setShadowColor:[UIColor blackColor].CGColor];
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[activityContainer.layer setShadowOpacity:0.8];
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[activityContainer.layer setShadowRadius:6.0];
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[activityContainer.layer setShadowOffset:CGSizeMake(4.0, 4.0)];
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}
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UIActivityIndicatorView *activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
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#if !__has_feature(objc_arc)
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[activityView autorelease];
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#endif
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[activityView setCenter:CGPointMake(activityContainer.bounds.size.width / 2, activityContainer.bounds.size.height / 2)];
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[activityContainer addSubview:activityView];
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[activityView startAnimating];
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[UIView beginAnimations:nil context:nil];
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[UIView setAnimationDuration:kFadeDuration];
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[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
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[activityContainer setAlpha:1.0];
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[UIView commitAnimations];
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[self addSubview:activityContainer];
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}
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- (void)hideToastActivity {
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UIView *existingToast = [self viewWithTag:kActivityTag];
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if (existingToast != nil) {
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[UIView beginAnimations:nil context:nil];
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[UIView setAnimationDuration:kFadeDuration];
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[UIView setAnimationDelegate:existingToast];
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[UIView setAnimationDidStopSelector:@selector(removeFromSuperview)];
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[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
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[existingToast setAlpha:0.0];
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[UIView commitAnimations];
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}
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}
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#pragma mark - Animation Delegate Method
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- (void)animationDidStop:(NSString*)animationID finished:(BOOL)finished context:(void *)context {
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#if !__has_feature(objc_arc)
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UIView *toast = (UIView *)context;
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#else
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UIView *toast = (UIView *)(__bridge id)context;
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#endif
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// retrieve the display interval associated with the view
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CGFloat interval = [(NSNumber *)objc_getAssociatedObject(toast, &kDurationKey) floatValue];
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if([animationID isEqualToString:@"fade_in"]) {
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#if !__has_feature(objc_arc)
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[UIView beginAnimations:@"fade_out" context:toast];
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#else
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[UIView beginAnimations:@"fade_out" context:(__bridge void*)toast];
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#endif
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[UIView setAnimationDelay:interval];
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[UIView setAnimationDuration:kFadeDuration];
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[UIView setAnimationDelegate:self];
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[UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)];
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[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
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[toast setAlpha:0.0];
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[UIView commitAnimations];
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} else if ([animationID isEqualToString:@"fade_out"]) {
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[toast removeFromSuperview];
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}
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}
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#pragma mark - Private Methods
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- (CGPoint)getPositionFor:(id)point toast:(UIView *)toast {
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// Convert string literals @"top", @"bottom", @"center", or any point wrapped in an
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// NSValue object into a CGPoint
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if([point isKindOfClass:[NSString class]]) {
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if( [point caseInsensitiveCompare:@"top"] == NSOrderedSame ) {
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return CGPointMake(self.bounds.size.width/2, (toast.frame.size.height / 2) + kVerticalPadding);
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} else if( [point caseInsensitiveCompare:@"bottom"] == NSOrderedSame ) {
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return CGPointMake(self.bounds.size.width/2, (self.bounds.size.height - (toast.frame.size.height / 2)) - kVerticalPadding);
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} else if( [point caseInsensitiveCompare:@"center"] == NSOrderedSame ) {
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return CGPointMake(self.bounds.size.width / 2, self.bounds.size.height / 2);
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}
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} else if ([point isKindOfClass:[NSValue class]]) {
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return [point CGPointValue];
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}
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NSLog(@"Error: Invalid position for toast.");
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return [self getPositionFor:kDefaultPosition toast:toast];
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}
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- (UIView *)makeViewForMessage:(NSString *)message title:(NSString *)title image:(UIImage *)image {
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// sanity
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if((message == nil) && (title == nil) && (image == nil)) return nil;
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// Dynamically build a toast view with any combination of message, title, & image.
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UILabel *messageLabel = nil;
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UILabel *titleLabel = nil;
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UIImageView *imageView = nil;
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// create the parent view
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UIView *wrapperView = [[UIView alloc] init];
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#if !__has_feature(objc_arc)
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[wrapperView autorelease];
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#endif
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[wrapperView setAutoresizingMask:(UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin)];
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[wrapperView.layer setCornerRadius:kCornerRadius];
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if (kDisplayShadow) {
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[wrapperView.layer setShadowColor:[UIColor blackColor].CGColor];
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[wrapperView.layer setShadowOpacity:0.8];
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[wrapperView.layer setShadowRadius:6.0];
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[wrapperView.layer setShadowOffset:CGSizeMake(4.0, 4.0)];
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}
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[wrapperView setBackgroundColor:[[UIColor blackColor] colorWithAlphaComponent:kOpacity]];
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if(image != nil) {
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imageView = [[UIImageView alloc] initWithImage:image];
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#if !__has_feature(objc_arc)
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[imageView autorelease];
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#endif
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[imageView setContentMode:UIViewContentModeScaleAspectFit];
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[imageView setFrame:CGRectMake(kHorizontalPadding, kVerticalPadding, kImageWidth, kImageHeight)];
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}
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CGFloat imageWidth, imageHeight, imageLeft;
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// the imageView frame values will be used to size & position the other views
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if(imageView != nil) {
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imageWidth = imageView.bounds.size.width;
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imageHeight = imageView.bounds.size.height;
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imageLeft = kHorizontalPadding;
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} else {
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imageWidth = imageHeight = imageLeft = 0.0;
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}
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if (title != nil) {
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titleLabel = [[UILabel alloc] init];
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#if !__has_feature(objc_arc)
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[titleLabel autorelease];
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#endif
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[titleLabel setNumberOfLines:kMaxTitleLines];
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[titleLabel setFont:[UIFont boldSystemFontOfSize:kFontSize]];
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[titleLabel setTextAlignment:NSTextAlignmentLeft];
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[titleLabel setLineBreakMode:NSLineBreakByWordWrapping];
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[titleLabel setTextColor:[UIColor whiteColor]];
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[titleLabel setBackgroundColor:[UIColor clearColor]];
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[titleLabel setAlpha:1.0];
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[titleLabel setText:title];
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// size the title label according to the length of the text
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CGSize maxSizeTitle = CGSizeMake((self.bounds.size.width * kMaxWidth) - imageWidth, self.bounds.size.height * kMaxHeight);
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CGSize expectedSizeTitle = [title sizeWithFont:titleLabel.font constrainedToSize:maxSizeTitle lineBreakMode:titleLabel.lineBreakMode];
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[titleLabel setFrame:CGRectMake(0.0, 0.0, expectedSizeTitle.width, expectedSizeTitle.height)];
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}
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if (message != nil) {
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messageLabel = [[UILabel alloc] init];
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#if !__has_feature(objc_arc)
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[messageLabel autorelease];
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#endif
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[messageLabel setNumberOfLines:kMaxMessageLines];
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[messageLabel setFont:[UIFont systemFontOfSize:kFontSize]];
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[messageLabel setLineBreakMode:NSLineBreakByWordWrapping];
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[messageLabel setTextColor:[UIColor whiteColor]];
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[messageLabel setBackgroundColor:[UIColor clearColor]];
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[messageLabel setAlpha:1.0];
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[messageLabel setText:message];
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// size the message label according to the length of the text
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CGSize maxSizeMessage = CGSizeMake((self.bounds.size.width * kMaxWidth) - imageWidth, self.bounds.size.height * kMaxHeight);
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CGSize expectedSizeMessage = [message sizeWithFont:messageLabel.font constrainedToSize:maxSizeMessage lineBreakMode:messageLabel.lineBreakMode];
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[messageLabel setFrame:CGRectMake(0.0, 0.0, expectedSizeMessage.width, expectedSizeMessage.height)];
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}
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// titleLabel frame values
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CGFloat titleWidth, titleHeight, titleTop, titleLeft;
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if(titleLabel != nil) {
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titleWidth = titleLabel.bounds.size.width;
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titleHeight = titleLabel.bounds.size.height;
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titleTop = kVerticalPadding;
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titleLeft = imageLeft + imageWidth + kHorizontalPadding;
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} else {
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titleWidth = titleHeight = titleTop = titleLeft = 0.0;
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}
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// messageLabel frame values
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CGFloat messageWidth, messageHeight, messageLeft, messageTop;
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if(messageLabel != nil) {
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messageWidth = messageLabel.bounds.size.width;
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messageHeight = messageLabel.bounds.size.height;
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messageLeft = imageLeft + imageWidth + kHorizontalPadding;
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messageTop = titleTop + titleHeight + kVerticalPadding;
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} else {
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messageWidth = messageHeight = messageLeft = messageTop = 0.0;
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}
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CGFloat longerWidth = MAX(titleWidth, messageWidth);
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CGFloat longerLeft = MAX(titleLeft, messageLeft);
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// wrapper width uses the longerWidth or the image width, whatever is larger. same logic applies to the wrapper height
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CGFloat wrapperWidth = MAX((imageWidth + (kHorizontalPadding * 2)), (longerLeft + longerWidth + kHorizontalPadding));
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CGFloat wrapperHeight = MAX((messageTop + messageHeight + kVerticalPadding), (imageHeight + (kVerticalPadding * 2)));
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[wrapperView setFrame:CGRectMake(0.0, 0.0, wrapperWidth, wrapperHeight)];
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if(titleLabel != nil) {
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[titleLabel setFrame:CGRectMake(titleLeft, titleTop, titleWidth, titleHeight)];
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[wrapperView addSubview:titleLabel];
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}
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if(messageLabel != nil) {
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[messageLabel setFrame:CGRectMake(messageLeft, messageTop, messageWidth, messageHeight)];
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[wrapperView addSubview:messageLabel];
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}
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if(imageView != nil) {
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[wrapperView addSubview:imageView];
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}
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return wrapperView;
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}
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@end
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