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JCAlertController is same level with UIAlertController.
It is inherited from UIViewController too.
It supports managing presented controllers with FIFO or LIFO.

Compare Present Queue Custom Style Custom View Minimum iOS Target
JCAlertController support simple simple iOS 7
UIAlertController not support difficult difficult iOS 8
  • support present queue
  • support custom style
  • support custom contentView

What is present queue ?

Look at the flowing code:

[self presentWithFIFO:alert1];
[self presentWithFIFO:alert2];
[self presentWithFIFO:alert3];

Result:
alert1 shows first, after dismissed by user, alert2 shows second, after dismissed by user, alert3 shows third.
like this: alert1 >> alert2 >> alert3

[self presentWithLIFO:alert1];
[self presentWithLIFO:alert2];
[self presentWithLIFO:alert3];

Result:
alert3 shows first, after dismissed by user, alert2 shows second, after dismissed by user, alert1 shows third.
like this alert3 >> alert2 >> alert1

Preview

normal style

normal style（title only）

normal style（content only）

normal style (words oveflow)

custom style

custom contentView

custom contentView and keyboard handle

custom contentView and attributedstring

Struct

.
|____.DS_Store
|____AlertView
| |____JCAlertView.h
| |____JCAlertView.m
|____ButtonItem
| |____JCAlertButtonItem.h
| |____JCAlertButtonItem.m
|____Category
| |____NSAttributedString+JCCalculateSize.h
| |____NSAttributedString+JCCalculateSize.m
| |____UIColor+JCHightlightedColor.h
| |____UIColor+JCHightlightedColor.m
| |____UIImage+JCColor2Image.h
| |____UIImage+JCColor2Image.m
| |____UIViewController+JCPresentQueue.h // present category
| |____UIViewController+JCPresentQueue.m
| |____UIWindow+JCBlur.h
| |____UIWindow+JCBlur.m
|____JCAlertController.h // import this
|____JCAlertController.m
|____Style
| |____JCAlertStyle.h
| |____JCAlertStyle.m
| |____JCAlertStyleAlertView.h
| |____JCAlertStyleAlertView.m
| |____JCAlertStyleBackground.h
| |____JCAlertStyleBackground.m
| |____JCAlertStyleButton.h
| |____JCAlertStyleButton.m
| |____JCAlertStyleButtonCancel.h
| |____JCAlertStyleButtonCancel.m
| |____JCAlertStyleButtonNormal.h
| |____JCAlertStyleButtonNormal.m
| |____JCAlertStyleButtonWarning.h
| |____JCAlertStyleButtonWarning.m
| |____JCAlertStyleContent.h
| |____JCAlertStyleContent.m
| |____JCAlertStyleSeparator.h
| |____JCAlertStyleSeparator.m
| |____JCAlertStyleTitle.h
| |____JCAlertStyleTitle.m

Installation with CocoaPods

step 1

platform :ios, '7.0'
target 'your target' do
pod 'JCAlertController'
end

step 2

#import "JCAlertController.h"

Usage

title only

JCAlertController *alert = [JCAlertController alertWithTitle:@"I am title" message:nil type:JCAlertTypeTitleOnly];
[alert addButtonWithTitle:@"Cancel" type:JCButtonTypeCancel clicked:nil];
[alert addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
[self jc_presentViewController:alert presentType:JCPresentTypeLIFO presentCompletion:nil dismissCompletion:nil];

content only

JCAlertController *alert = [JCAlertController alertWithTitle:nil message:@"I am content" type:JCAlertTypeContentOnly];
[alert addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
[self jc_presentViewController:alert presentType:JCPresentTypeLIFO presentCompletion:nil dismissCompletion:nil];

title and content both

JCAlertController *alert = [JCAlertController alertWithTitle:@"I am title" message:@"I am content" type:JCAlertTypeNormal];
[alert addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
[self jc_presentViewController:alert presentType:JCPresentTypeLIFO presentCompletion:nil dismissCompletion:nil];

custom style

// See all properties in JCAlertStyle
JCAlertStyle *style = [JCAlertStyle styleWithType:JCAlertTypeCustom];
style.background.blur = NO;
style.alertView.cornerRadius = 4;
style.title.backgroundColor = [UIColor colorWithRed:251/255.0 green:2/255.0 blue:19/255.0 alpha:1.0];
style.title.textColor = [UIColor whiteColor];
style.content.backgroundColor = [UIColor colorWithRed:251/255.0 green:2/255.0 blue:19/255.0 alpha:1.0];
style.content.textColor = [UIColor whiteColor];
style.content.insets = UIEdgeInsetsMake(20, 20, 40, 20);
style.buttonNormal.textColor = [UIColor colorWithRed:248/255.0 green:59/255.0 blue:50/255.0 alpha:1.0];
style.buttonNormal.highlightTextColor = [style.buttonNormal.textColor hightlightedColor];
style.buttonNormal.backgroundColor = [UIColor whiteColor];
style.buttonNormal.highlightBackgroundColor = [UIColor whiteColor];

JCAlertController *alert = [JCAlertController alertWithTitle:@"I am title" message:@"I am content" type:JCAlertTypeCustom];
[alert addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
[self jc_presentViewController:alert presentType:JCPresentTypeLIFO presentCompletion:nil dismissCompletion:nil];

present with LIFO

// LIFO: alert3 >> alert2 >> alert4 >> alert1

// alert1
JCAlertController *alert1 = [JCAlertController alertWithTitle:@"alert1" message:nil type:JCAlertTypeTitleOnly];
[alert1 addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
[self jc_presentViewController:alert1 presentType:JCPresentTypeLIFO presentCompletion:nil dismissCompletion:nil];

// alert2
JCAlertController *alert2 = [JCAlertController alertWithTitle:@"alert2" message:nil type:JCAlertTypeTitleOnly];
[alert2 addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:^{
    // alert4
    JCAlertController *alert = [JCAlertController alertWithTitle:@"alert4" message:nil type:JCAlertTypeTitleOnly];
    [alert addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
    [self jc_presentViewController:alert presentType:JCPresentTypeLIFO presentCompletion:nil dismissCompletion:nil];
}];
[self jc_presentViewController:alert2 presentType:JCPresentTypeLIFO presentCompletion:nil dismissCompletion:nil];

// alert3
JCAlertController *alert3 = [JCAlertController alertWithTitle:@"alert3" message:nil type:JCAlertTypeTitleOnly];
[alert3 addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
[self jc_presentViewController:alert3 presentType:JCPresentTypeLIFO presentCompletion:nil dismissCompletion:nil];

present with FIFO

// FIFO >> alert2 >> alert3 >> alert4

// alert1
JCAlertController *alert1 = [JCAlertController alertWithTitle:@"alert1" message:nil type:JCAlertTypeTitleOnly];
[alert1 addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
[self jc_presentViewController:alert1 presentType:JCPresentTypeFIFO presentCompletion:nil dismissCompletion:nil];

// alert2
JCAlertController *alert2 = [JCAlertController alertWithTitle:@"alert2" message:nil type:JCAlertTypeTitleOnly];
[alert2 addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:^{
    // alert4
    JCAlertController *alert = [JCAlertController alertWithTitle:@"alert4" message:nil type:JCAlertTypeTitleOnly];
    [alert addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
    [self jc_presentViewController:alert presentType:JCPresentTypeFIFO presentCompletion:nil dismissCompletion:nil];
}];
[self jc_presentViewController:alert2 presentType:JCPresentTypeFIFO presentCompletion:nil dismissCompletion:nil];

// alert3
JCAlertController *alert3 = [JCAlertController alertWithTitle:@"alert3" message:nil type:JCAlertTypeTitleOnly];
[alert3 addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
[self jc_presentViewController:alert3 presentType:JCPresentTypeFIFO presentCompletion:nil dismissCompletion:nil];

custom contentView

UIImageView *contentView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 280, 175)];
contentView.image = [UIImage imageNamed:@"alert"];
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismiss)];
[contentView addGestureRecognizer:tap];
contentView.userInteractionEnabled = YES;

JCAlertController *alert = [JCAlertController alertWithTitle:nil contentView:contentView type:JCAlertTypeNormal];
[self jc_presentViewController:alert presentType:JCPresentTypeLIFO presentCompletion:nil dismissCompletion:nil];

custom contentView and keyboard handle

UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(20, 0, 240, 26)];
textField.backgroundColor = [UIColor colorWithRed:241/255.0 green:241/255.0 blue:241/255.0 alpha:1.0];
textField.layer.cornerRadius = 3;
textField.clipsToBounds = YES;
textField.center = CGPointMake(140, 30);
textField.secureTextEntry = YES;
textField.textAlignment = NSTextAlignmentCenter;

UIView *contentView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 280, 60)];
[contentView addSubview:textField];

JCAlertController *alert = [JCAlertController alertWithTitle:@"Enter password please" contentView:contentView type:JCAlertTypeNormal];
[alert addButtonWithTitle:@"Confirm" type:JCButtonTypeNormal clicked:^{
    NSLog(@"You inputed：%@", textField.text);
    [textField resignFirstResponder];
}];
[self jc_presentViewController:alert presentType:JCPresentTypeLIFO presentCompletion:^{
    [textField becomeFirstResponder];
} dismissCompletion:nil];

// avoid retain circle
__weak typeof(JCAlertController *) weakalert = alert;

// callback after keyboard shows
[alert monitorKeyboardShowed:^(CGFloat alertHeight, CGFloat keyboardHeight) {
    [weakalert moveAlertViewToCenterY:alertHeight / 2 + 120 animated:YES];
}];
// callback after keyboard hides
[alert monitorKeyboardHided:^{
    [weakalert moveAlertViewToScreenCenterAnimated:YES];
}];

custom contentView and attributedstring

UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 280, 100)];
label.textAlignment = NSTextAlignmentCenter;
NSMutableAttributedString *AttributedStr = [[NSMutableAttributedString alloc]initWithString:@"Hello"];
[AttributedStr addAttribute:NSForegroundColorAttributeName value:[UIColor orangeColor] range:NSMakeRange(0, 2)];
[AttributedStr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(2, 3)];
label.attributedText = AttributedStr;

JCAlertController *alert = [JCAlertController alertWithTitle:nil contentView:label type:JCAlertTypeNormal];
[alert addButtonWithTitle:@"OK" type:JCButtonTypeNormal clicked:nil];
[self jc_presentViewController:alert presentType:JCPresentTypeLIFO presentCompletion:nil dismissCompletion:nil];

Contact me

E-mail: [email protected]
Blog: http://www.jianshu.com/u/8bde69945e50

About

AlertController presented FIFO or LIFO and customed easily

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MIT license
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