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MMCustomAlertView.m
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MMCustomAlertView.m
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//
// MMCustomAlertView.m
//
// Created by Michalis Mavris on 04/10/14.
// Copyright (c) 2014 miksoft.net. All rights reserved.
//
#import "MMCustomAlertView.h"
@interface MMCustomAlertView()
@property (nonatomic, assign) id <MMCustomAlertViewDelegate> delegate;
@property (nonatomic, strong) UILabel *msgLabel;
@property (nonatomic, strong) UIButton *okButton;
@property (nonatomic, strong) UIImageView *backgroundImageView;
@end
@implementation MMCustomAlertView{
BOOL isAlertAnimated;
}
-(id)initWithMessage:(NSString*)msg andDelegate:(id<MMCustomAlertViewDelegate>)del{
self = [super initWithFrame:[[UIScreen mainScreen] bounds]];
if (self) {
self.delegate=del;
isAlertAnimated=YES;
[self addSubview:self.msgLabel];
[self addSubview:self.okButton];
self.alpha=0;
self.backgroundColor = [UIColor blackColor];
self.msgLabel.text=msg;
self.msgLabel.textColor=[UIColor whiteColor];
self.okButton.tintColor=[UIColor whiteColor];
[self setupConstraints];
}
//Animate the alpha of View
[UIView animateWithDuration:0.3 animations:^{self.alpha=0.9;} completion:^(BOOL finished){}];
return self;
}
-(id)initWithMessage:(NSString*)msg backgroundColor:(UIColor*)backgroundColor textColor:(UIColor*)textColor viewAlpha:(float)alpha animated:(BOOL)isAnimated andDelegate:(id<MMCustomAlertViewDelegate>)del{
self = [super initWithFrame:[[UIScreen mainScreen] bounds]];
if (self) {
self.delegate=del;
isAlertAnimated=isAnimated;
[self addSubview:self.msgLabel];
[self addSubview:self.okButton];
self.alpha=0;
self.backgroundColor = backgroundColor;
self.msgLabel.textColor=textColor;
self.msgLabel.text=msg;
self.okButton.tintColor =textColor;
[self setupConstraints];
}
//Check if the user want to animate the Alert View
if (isAlertAnimated) {
//Animate the alpha of View
[UIView animateWithDuration:0.3 animations:^{self.alpha=alpha;} completion:^(BOOL finished){}];
}
else{
self.alpha=alpha;
}
return self;
}
- (UILabel *)msgLabel {
if (_msgLabel == nil) {
_msgLabel = [[UILabel alloc] init];
[_msgLabel setNumberOfLines:0];
[_msgLabel sizeToFit];
[_msgLabel setTranslatesAutoresizingMaskIntoConstraints:NO];
[_msgLabel setBackgroundColor:[UIColor clearColor]];
[_msgLabel setTextAlignment:NSTextAlignmentCenter];
}
return _msgLabel;
}
- (UIButton *)okButton {
if (_okButton == nil) {
_okButton = [UIButton buttonWithType:UIButtonTypeSystem];
[_okButton setTranslatesAutoresizingMaskIntoConstraints:NO];
[_okButton setBackgroundColor:[UIColor clearColor]];
[_okButton setTitle:@"OK" forState:UIControlStateNormal];
[_okButton addTarget:self action:@selector(buttonClicked) forControlEvents:UIControlEventTouchUpInside];
}
return _okButton;
}
-(void)buttonClicked{
if (isAlertAnimated) {
//Animate, removing the alpha of View and call delegate
[UIView animateWithDuration:0.3
animations:^{
self.alpha=0;
}
completion:^(BOOL finished){
[self removeFromSuperview];
[self.delegate MMCustomAlertViewOKButtonDelegate];
}];
}
else{
//Removing the alpha of View and call delegate
[self removeFromSuperview];
[self.delegate MMCustomAlertViewOKButtonDelegate];
}
}
- (void)setupConstraints{
//msgLabel constraints
// Width constraint
[self addConstraint:[NSLayoutConstraint constraintWithItem:self.msgLabel
attribute:NSLayoutAttributeWidth
relatedBy:NSLayoutRelationEqual
toItem:self
attribute:NSLayoutAttributeWidth
multiplier:0.8
constant:0]];
// Height constraint
[self addConstraint:[NSLayoutConstraint constraintWithItem:self.msgLabel
attribute:NSLayoutAttributeHeight
relatedBy:NSLayoutRelationEqual
toItem:self
attribute:NSLayoutAttributeHeight
multiplier:0.2
constant:0]];
// Center horizontally
[self addConstraint:[NSLayoutConstraint constraintWithItem:self.msgLabel
attribute:NSLayoutAttributeCenterX
relatedBy:NSLayoutRelationEqual
toItem:self
attribute:NSLayoutAttributeCenterX
multiplier:1.0
constant:0.0]];
// Center vertically
[self addConstraint:[NSLayoutConstraint constraintWithItem:self.msgLabel
attribute:NSLayoutAttributeCenterY
relatedBy:NSLayoutRelationEqual
toItem:self
attribute:NSLayoutAttributeCenterY
multiplier:0.6
constant:0.0]];
//okButton constraints
// Width constraint
[self addConstraint:[NSLayoutConstraint constraintWithItem:self.okButton
attribute:NSLayoutAttributeWidth
relatedBy:NSLayoutRelationEqual
toItem:self
attribute:NSLayoutAttributeWidth
multiplier:0.8
constant:0]];
// Height constraint
[self addConstraint:[NSLayoutConstraint constraintWithItem:self.okButton
attribute:NSLayoutAttributeHeight
relatedBy:NSLayoutRelationEqual
toItem:self
attribute:NSLayoutAttributeHeight
multiplier:0.08
constant:0]];
// Center horizontally
[self addConstraint:[NSLayoutConstraint constraintWithItem:self.okButton
attribute:NSLayoutAttributeCenterX
relatedBy:NSLayoutRelationEqual
toItem:self
attribute:NSLayoutAttributeCenterX
multiplier:1.0
constant:0.0]];
// Center vertically
[self addConstraint:[NSLayoutConstraint constraintWithItem:self.okButton
attribute:NSLayoutAttributeCenterY
relatedBy:NSLayoutRelationEqual
toItem:self
attribute:NSLayoutAttributeCenterY
multiplier:1.0
constant:0.0]];
}
@end