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Support showing toast messages in different UIViews #5

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Support showing toast messages in different UIViews #5

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2 changes: 2 additions & 0 deletions ALToastView.h
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
//

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>


@interface ALToastView : UIView {
Expand All @@ -32,5 +33,6 @@
}

+ (void)toastInView:(UIView *)parentView withText:(NSString *)text;
@property UIView *parentView;

@end
133 changes: 77 additions & 56 deletions ALToastView.m
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Original file line number Diff line number Diff line change
Expand Up @@ -31,8 +31,8 @@
static const CGFloat kDuration = 2;


// Static toastview queue variable
static NSMutableArray *toasts;
// Static dictionary with queue variables per each UIView
static NSMutableDictionary *dtoasts;


////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Expand All @@ -59,13 +59,14 @@ @implementation ALToastView
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#pragma mark - NSObject

- (id)initWithText:(NSString *)text {
- (id)initWithText:(NSString *)text withView:(UIView*) pview {
if ((self = [self initWithFrame:CGRectZero])) {
// Add corner radius
self.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:.6];
self.layer.cornerRadius = 5;
self.autoresizingMask = UIViewAutoresizingNone;
self.autoresizesSubviews = NO;
_parentView = pview;

// Init and add label
_textLabel = [[UILabel alloc] init];
Expand All @@ -85,82 +86,102 @@ - (id)initWithText:(NSString *)text {
}


- (void)dealloc {
[_textLabel release];

[super dealloc];
}


////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#pragma mark - Public

+ (void)toastInView:(UIView *)parentView withText:(NSString *)text {
// Add new instance to queue
ALToastView *view = [[ALToastView alloc] initWithText:text];
ALToastView *view = [[ALToastView alloc] initWithText:text withView:parentView];

CGFloat lWidth = view.textLabel.frame.size.width;
CGFloat lHeight = view.textLabel.frame.size.height;
CGFloat pWidth = parentView.frame.size.width;
CGFloat pHeight = parentView.frame.size.height;
// Change toastview frame
view.frame = CGRectMake((pWidth - lWidth - 20) / 2., pHeight - lHeight - 60, lWidth + 20, lHeight + 10);

// Change toastview frame
view.frame = CGRectMake(((pWidth - lWidth - 20) / 2.), (pHeight - lHeight - 60), lWidth + 20, lHeight + 10);
view.alpha = 0.0f;

if (toasts == nil) {
toasts = [[NSMutableArray alloc] initWithCapacity:1];
[toasts addObject:view];
[ALToastView nextToastInView:parentView];
}
else {
[toasts addObject:view];
}

[view release];
NSString *key = [NSString stringWithFormat:@"%p", parentView];

if (dtoasts == nil) {
dtoasts = [[NSMutableDictionary alloc] initWithCapacity:0];
}
NSMutableArray *ltoasts;

@synchronized(dtoasts) {
ltoasts = [dtoasts objectForKey:key];
if(ltoasts == nil) {
ltoasts = [[NSMutableArray alloc] initWithCapacity:1];
[ltoasts addObject:view];
[dtoasts setObject:ltoasts forKey: key];
[ALToastView nextToastInView:parentView withViewList:ltoasts];
} else {
[ltoasts addObject:view];
}
}

}


////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#pragma mark - Private

- (void)fadeToastOut {
// Fade in parent view
[UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionAllowUserInteraction

animations:^{
self.alpha = 0.f;
}
completion:^(BOOL finished){
UIView *parentView = self.superview;
[self removeFromSuperview];

// Remove current view from array
[toasts removeObject:self];
if ([toasts count] == 0) {
[toasts release];
toasts = nil;
// Fade in parent view
NSMutableArray *ltoasts;
NSString *key = [NSString stringWithFormat:@"%p", self.parentView];
ltoasts = [dtoasts objectForKey:key];

if(ltoasts == nil) {
NSLog(@"fadeToastOut: ltoast is nil");
return;
}

[UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionAllowUserInteraction

animations:^{
self.alpha = 0.f;
}
else
[ALToastView nextToastInView:parentView];
}];
completion:^(BOOL finished){
UIView *parentView = self.superview;
[self removeFromSuperview];

@synchronized(dtoasts) {
NSMutableArray *ltoasts;
NSString *key = [NSString stringWithFormat:@"%p", self.parentView];
ltoasts = [dtoasts objectForKey:key];

if(ltoasts != nil) {
// Remove current view from array
[ltoasts removeObject:self];
if ([ltoasts count] == 0) {
[dtoasts removeObjectForKey:key];
}
else
[ALToastView nextToastInView:parentView withViewList:ltoasts];
}
}
}];
}


+ (void)nextToastInView:(UIView *)parentView {
if ([toasts count] > 0) {
ALToastView *view = [toasts objectAtIndex:0];

// Fade into parent view
[parentView addSubview:view];
[UIView animateWithDuration:.5 delay:0 options:UIViewAnimationOptionAllowUserInteraction
animations:^{
view.alpha = 1.0;
} completion:^(BOOL finished){}];

// Start timer for fade out
[view performSelector:@selector(fadeToastOut) withObject:nil afterDelay:kDuration];
}
+ (void)nextToastInView:(UIView *)parentView withViewList:(NSMutableArray*) ltoasts{
@synchronized(dtoasts) {
if ([ltoasts count] > 0) {
ALToastView *view = [ltoasts objectAtIndex:0];

// Fade into parent view
[parentView addSubview:view];
[UIView animateWithDuration:.5 delay:0 options:UIViewAnimationOptionAllowUserInteraction
animations:^{
view.alpha = 1.0;
} completion:^(BOOL finished){}];

// Start timer for fade out
[view performSelector:@selector(fadeToastOut) withObject:nil afterDelay:kDuration];
}
}
}

@end