#define AlertPadding 10
#define MenuHeight 44
#define AlertHeight 130 //提示框的宽度
#define AlertWidth 270 //提示框的高度
#import "ZLAlertDialog.h"
@implementation ZLAlertDialogItem
@end
@implementation ZLAlertDialog
- (instancetype)initWithTitle:(NSString *)title
message:(NSString *)message{
self = [super init];
if (self) {
_items = [[NSMutableArray alloc] init];
_title = title;
_messaege = message;
[self buildViews];
}
return self;
}
-(void)buildViews{
self.frame = [self screenBounds];//自定义大小
_coverView = [[UIView alloc]initWithFrame:[self topView].bounds];
_coverView.alpha = 0.5;//提示框下面的视图的透明度渲染
_coverView.backgroundColor = [UIColor blackColor];//在点击相应的时候，提示框下面的视图的颜色渲染
_coverView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
[[self topView] addSubview:_coverView];
_alertView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, AlertWidth, AlertHeight)];
_alertView.center = CGPointMake(self.frame.size.width/2, self.frame.size.height/2);
_alertView.layer.cornerRadius = 5;
_alertView.layer.masksToBounds = YES;
_alertView.backgroundColor = [UIColor whiteColor];
[self addSubview:_alertView];
//title
CGFloat labelHeigh = [self heightWithString:_title fontSize:17 AlertWidth-2*AlertPadding];
_labelTitle = [[UILabel alloc]initWithFrame:CGRectMake(AlertPadding, AlertPadding, AlertWidth-2*AlertPadding, labelHeigh)];
_labelTitle.font = [UIFont boldSystemFontOfSize:17];
_labelTitle.textColor = [UIColor blackColor];
_labelTitle.textAlignment = NSTextAlignmentCenter;
_labelTitle.numberOfLines = 0;
_labelTitle.text = _title;
_labelTitle.lineBreakMode = NSLineBreakByCharWrapping;
[_alertView addSubview:_labelTitle];
//message
CGFloat messageHeigh = [self heightWithString:_messaege fontSize:14 AlertWidth-2*AlertPadding];
_labelmessage = [[UILabel alloc]initWithFrame:CGRectMake(AlertPadding, _labelTitle.frame.origin.y+_labelTitle.frame.size.height, AlertWidth-2*AlertPadding, messageHeigh+2*AlertPadding)];
_labelmessage.font = [UIFont systemFontOfSize:14];
_labelmessage.textColor = [UIColor blackColor];
_labelmessage.textAlignment = NSTextAlignmentCenter;
_labelmessage.text = _messaege;
_labelmessage.numberOfLines = 0;
_labelmessage.lineBreakMode = NSLineBreakByCharWrapping;
[_alertView addSubview:_labelmessage];
_contentScrollView = [[UIScrollView alloc]initWithFrame:CGRectZero];
[_alertView addSubview:_contentScrollView];
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(deviceOrientationDidChange:) name:UIDeviceOrientationDidChangeNotification object:nil];
}
- (void)dealloc
{
[[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIDeviceOrientationDidChangeNotification object:nil];
}
-(void)layoutSubviews{
_buttonScrollView.frame = CGRectMake(0, _alertView.frame.size.height-MenuHeight,_alertView.frame.size.width, MenuHeight);
_contentScrollView.frame = CGRectMake(0, _labelTitle.frame.origin.y+_labelTitle.frame.size.height, _alertView.frame.size.width, _alertView.frame.size.height-MenuHeight);
self.contentView.frame = CGRectMake(0,0,self.contentView.frame.size.width, self.contentView.frame.size.height);
_contentScrollView.contentSize = self.contentView.frame.size;
}
-(void)willMoveToSuperview:(UIView *)newSuperview
{
[self addButtonItem];
[_contentScrollView addSubview:self.contentView];
[self reLayout];
}
-(void)reLayout{
CGFloat plus;
if (self.contentView) {
plus = self.contentView.frame.size.height-(_alertView.frame.size.height-MenuHeight);
}else{
plus = _labelmessage.frame.origin.y+_labelmessage.frame.size.height -(_alertView.frame.size.height-MenuHeight);
}
plus = MAX(0, plus);
CGFloat height = MIN([self screenBounds].size.height-MenuHeight,_alertView.frame.size.height+plus);
_alertView.frame = CGRectMake(_alertView.frame.origin.x, _alertView.frame.origin.y, AlertWidth, height);
_alertView.center = self.center;
[self setNeedsDisplay];
[self setNeedsLayout];
}
- (CGFloat)heightWithString:(NSString*)string fontSize:(CGFloat)fontSize (CGFloat)width
{
NSDictionary *attrs = @{NSFontAttributeName:[UIFont systemFontOfSize:fontSize]};
return [string boundingRectWithSize:CGSizeMake(width, 0) options:NSStringDrawingTruncatesLastVisibleLine | NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:attrs context:nil].size.height;
}
#pragma mark - add item
- (NSInteger)addButtonWithTitle:(NSString *)title{
ZLAlertDialogItem *item = [[ZLAlertDialogItem alloc] init];
item.title = title;
item.action = ^(ZLAlertDialogItem *item) {
NSLog(@"no action");
};
item.type = Button_OK;
[_items addObject:item];
return [_items indexOfObject:title];
}
- (void)addButton:(ButtonType)type withTitle:(NSString *)title handler:(ZLAlertDialogHandler)handler{
ZLAlertDialogItem *item = [[ZLAlertDialogItem alloc] init];
item.title = title;
item.action = handler;
item.type = type;
[_items addObject:item];
item.tag = [_items indexOfObject:item];
}
- (void)addButtonItem {
_buttonScrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, _alertView.frame.size.height- MenuHeight,AlertWidth, MenuHeight)];
_buttonScrollView.bounces = NO;
_buttonScrollView.showsHorizontalScrollIndicator = NO;
_buttonScrollView.showsVerticalScrollIndicator = NO;
CGFloat width;
if(self.buttonWidth){
width = self.buttonWidth;
_buttonScrollView.contentSize = CGSizeMake(width*[_items count], MenuHeight);
}else
{
width = _alertView.frame.size.width/[_items count];
}
[_items enumerateObjectsUsingBlock:^(ZLAlertDialogItem *item, NSUInteger idx, BOOL *stop) {
UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
// button.translatesAutoresizingMaskIntoConstraints = NO;
button.frame = CGRectMake(idx*width, 1, width, MenuHeight);
//seperator
button.backgroundColor = [UIColor whiteColor];
button.layer.shadowColor = [[UIColor grayColor] CGColor];
button.layer.shadowRadius = 0.5;
button.layer.shadowOpacity = 1;
button.layer.shadowOffset = CGSizeZero;
button.layer.masksToBounds = NO;
button.tag = 90000+ idx;
// title
[button setTitle:item.title forState:UIControlStateNormal];
[button setTitle:item.title forState:UIControlStateSelected];
button.titleLabel.font = [UIFont boldSystemFontOfSize:button.titleLabel.font.pointSize];
// action
[button addTarget:self
action:@selector(buttonTouched:)
forControlEvents:UIControlEventTouchUpInside];
[_buttonScrollView addSubview:button];
}];
[_alertView addSubview:_buttonScrollView];
}
- (void)buttonTouched:(UIButton*)button{
ZLAlertDialogItem *item = _items[button.tag-90000];
if (item.action) {
item.action(item);
}
[self dismiss];
}
#pragma mark - show and dismiss
-(UIView*)topView{
UIWindow *window = [[UIApplication sharedApplication] keyWindow];
return window.subviews[0];
}
- (void)show {
[UIView animateWithDuration:0.5 animations:^{
_coverView.alpha = 0.5;
} completion:^(BOOL finished) {
}];
[[self topView] addSubview:self];
[self showAnimation];
}
- (void)dismiss {
[self hideAnimation];
}
- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag {
// [self removeFromSuperview];
}
- (void)showAnimation {
CAKeyframeAnimation *popAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];
popAnimation.duration = 0.4;
popAnimation.values = @[[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.01f, 0.01f, 1.0f)],
[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.1f, 1.1f, 1.0f)],
[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.9f, 0.9f, 1.0f)],
[NSValue valueWithCATransform3D:CATransform3DIdentity]];
popAnimation.keyTimes = @[@0.2f, @0.5f, @0.75f, @1.0f];
popAnimation.timingFunctions = @[[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut],
[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut],
[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
[_alertView.layer addAnimation:popAnimation forKey:nil];
}
- (void)hideAnimation{
[UIView animateWithDuration:0.4 animations:^{
_coverView.alpha = 0.0;
_alertView.alpha = 0.0;
} completion:^(BOOL finished) {
[self removeFromSuperview];
}];
}
#pragma mark - Handle device orientation changes
// Handle device orientation changes
- (void)deviceOrientationDidChange: (NSNotification *)notification
{
// UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];
self.frame = [self screenBounds];
//NSLog(@"self.frame%@",NSStringFromCGRect(self.frame));
[UIView animateWithDuration:0.2f delay:0.0 options:UIViewAnimationOptionTransitionNone
animations:^{
[self reLayout];
}
completion:nil
];
}
- (CGRect)screenBounds
{
CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;
CGFloat screenHeight = [UIScreen mainScreen].bounds.size.height;
// On iOS7, screen width and height doesn't automatically follow orientation
if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_7_1) {
UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];
if (UIInterfaceOrientationIsLandscape(interfaceOrientation)) {
CGFloat tmp = screenWidth;
screenWidth = screenHeight;
screenHeight = tmp;
}
}
return CGRectMake(0, 0, screenWidth, screenHeight);
}
@end
