最近封装了一个AlertController,完全按照系统的思路进行封装，省去了学习成本，且自定义程度远远高于系统的。说不多说，上代码咯！
下载地址先附上
#import <UIKit/UIKit.h>
/**样式*/
@interface BDNomalAlertActionStyle : NSObject
/**标题颜色*/
@property (nonatomic,strong)UIColor *titleColor;
/**标题大小*/
@property (nonatomic,strong)UIFont *titleFont;
/**背景色*/
@property (nonatomic,strong)UIColor *bgColor;
@end
@interface BDNomalAlertAction : NSObject
@property (nonatomic,strong,readonly)BDNomalAlertActionStyle *style;
@property (nonatomic,copy,readonly)NSString *title;
+ (instancetype)actionWithTitle:(NSString *)title style:(BDNomalAlertActionStyle*)style handler:(void (^)(BDNomalAlertAction *action))handler;
@end
@interface BDNomalAlertView : UIView
+ (instancetype)alertControllerWithTitle:(NSString *)title message:(NSString *)message;
/**之间的距离 默认为10*/
@property (nonatomic,assign)CGFloat actionBtnMargin;
/**左右两边的间距 默认为0*/
@property (nonatomic,assign)CGFloat actionBtnLeftInset;
/**展示按钮的最大宽度，主要是为了美观*/
@property (nonatomic,assign,readonly)CGFloat actionBtnMaxWidth;
- (void)addAction:(BDNomalAlertAction *)action;
- (void)showAlertView;
@end
各位小伙伴们，是不是跟系统的一样样的。动画效果高仿系统的。
一共分为三个类：
/**
这个是样式模型，决定了你的操作按钮长的样子，开发者还可以继续添加属性即可
*/
@interface BDNomalAlertActionStyle : NSObject
而且提供了最常规的样式类方法快速创建
/**取消样式*/
+ (instancetype)cancelNomalStyle;
/**确定样式*/
+ (instancetype)sureNomalStyle;
第二个是操作Action，也是仿照了系统进行设计的，以下是代码：
@interface BDNomalAlertAction ()
@property (nonatomic,copy)void (^actionHandler)(BDNomalAlertAction*action);
@end
@implementation BDNomalAlertAction
+ (instancetype)actionWithTitle:(NSString *)title style:(BDNomalAlertActionStyle*)style handler:(void (^)(BDNomalAlertAction *action))handler
{
return [[BDNomalAlertAction alloc]initWithTitle:title style:style handler:handler];
}
-(instancetype)initWithTitle:(NSString*)title style:(BDNomalAlertActionStyle*)style handler:(void (^)(BDNomalAlertAction *action))handler
{
self = [super init];
if(self){
_title = title;
_style = style;
_actionHandler = handler;
}
return self;
}
@end
BDNomalAlertView是最关键的了，不废话了，直接上了，
@interface BDNomalAlertView ()
@property (nonatomic,weak)UIView *contentView;
@property (nonatomic,weak)UIView *actionView;
@property (nonatomic,strong)NSMutableArray *actionArray;
@end
@implementation BDNomalAlertView
+ (instancetype)alertControllerWithTitle:(NSString *)title message:(NSString *)message
{
return [[BDNomalAlertView alloc]initWithFrame:[UIScreen mainScreen].bounds title:title message:message];
}
-(NSMutableArray *)actionArray
{
if(!_actionArray){
_actionArray = [NSMutableArray array];
}
return _actionArray;
}
-(instancetype)initWithFrame:(CGRect)frame title:(NSString*)title message:(NSString *)message
{
self = [super initWithFrame:frame];
if(self){
_actionBtnMargin = 10;
_actionBtnLeftInset = 0;
_actionBtnMaxWidth = 100;
self.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.4];
CGFloat contentWidth = 250;
if(SCREEN_WIDTH == 375){
contentWidth = 280;
}else if (SCREEN_WIDTH > 375){
contentWidth = 320;
}
CGFloat contentActionHeight = 70;
CGFloat contentTitleHeight = 0;
CGFloat contentMessageHeight = 0;
if(title.length > 0){
contentTitleHeight = [title boundingRectWithSize:CGSizeMake(contentWidth-2*ALERT_LEFT_MARGIN, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:15]} context:nil].size.height+2+2*12;
}
if(message.length >0){
contentMessageHeight = [message boundingRectWithSize:CGSizeMake(contentWidth-2*ALERT_LEFT_MARGIN, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:14]} context:nil].size.height+2+2*15;
}
CGFloat contentHeight = contentActionHeight+contentTitleHeight+contentMessageHeight;
UIView *contentView = [[UIView alloc]initWithFrame:CGRectMake((frame.size.width-contentWidth)*0.5, (frame.size.height-contentHeight)*0.5, contentWidth, contentHeight)];
contentView.backgroundColor = [UIColor whiteColor];
self.contentView = contentView;
[self addSubview:contentView];
[contentView.layer setCornerRadius:5];
[contentView.layer setMasksToBounds:YES];
CGRect titleViewFrame = CGRectZero;
CGRect messageViewFrame = CGRectZero;
CGRect actionViewFrame = CGRectZero;
//添加标题
if(contentTitleHeight != 0){
titleViewFrame = CGRectMake(0, 0, contentWidth, contentTitleHeight);
actionViewFrame = CGRectMake(0, CGRectGetMaxY(titleViewFrame), contentWidth, contentActionHeight);
UIView *titleView = [[UIView alloc]initWithFrame:titleViewFrame];
[contentView addSubview:titleView];
UILabel *titleLabel = [[UILabel alloc]initWithFrame:CGRectMake(ALERT_LEFT_MARGIN, 12, titleView.width-2*ALERT_LEFT_MARGIN, titleView.height-2*12)];
titleLabel.textColor = [UIColor colorWithRed:1.0*51/255 green:1.0*51/255 blue:1.0*51/255 alpha:1.0];
titleLabel.font = [UIFont boldSystemFontOfSize:15];
titleLabel.text = title;
titleLabel.numberOfLines = 0;
titleLabel.textAlignment = NSTextAlignmentCenter;
[titleView addSubview:titleLabel];
UIView *titleLine = [[UIView alloc]initWithFrame:CGRectMake(0, titleView.height-0.8, titleView.width, 0.8)];
titleLine.backgroundColor = [UIColor colorWithRed:1.0*225/255 green:1.0*225/255 blue:1.0*225/255 alpha:1.0];
[titleView addSubview:titleLine];
}
//添加内容
if(contentMessageHeight != 0){
messageViewFrame = CGRectMake(0, CGRectGetMaxY(titleViewFrame), contentWidth, contentMessageHeight);
actionViewFrame = CGRectMake(0, CGRectGetMaxY(messageViewFrame), contentWidth, contentActionHeight);
UIView *messageView = [[UIView alloc]initWithFrame:messageViewFrame];
[contentView addSubview:messageView];
UILabel *messageLabel = [[UILabel alloc]initWithFrame:CGRectMake(ALERT_LEFT_MARGIN, 15, messageView.width-2*ALERT_LEFT_MARGIN, messageView.height-2*15)];
messageLabel.numberOfLines = 0;
messageLabel.textColor = [UIColor colorWithRed:1.0*102/255 green:1.0*102/255 blue:1.0*102/255 alpha:1.0];;
messageLabel.textAlignment = NSTextAlignmentCenter;
messageLabel.text = message;
messageLabel.font = [UIFont systemFontOfSize:14];
[messageView addSubview:messageLabel];
}
UIView *actionView = [[UIView alloc]initWithFrame:actionViewFrame];
self.actionView = actionView;
[contentView addSubview:actionView];
}
return self;
}
- (void)addAction:(BDNomalAlertAction *)action
{
[self.actionArray addObject:action];
NSInteger actionIndex = self.actionView.subviews.count;
BDUnHightedBtn *button = [[BDUnHightedBtn alloc]init];
button.tag = actionIndex;
BDNomalAlertActionStyle *style = action.style;
[button setTitle:action.title forState:UIControlStateNormal];
UIFont *btnFont = [UIFont systemFontOfSize:15];
UIColor *btnColor = [UIColor colorWithRed:1.0*51/255 green:1.0*51/255 blue:1.0*51/255 alpha:1.0];
if(style.titleFont){
btnFont = style.titleFont;
}
if(style.titleColor){
btnColor = style.titleColor;
}
button.titleLabel.font = btnFont;
[button setTitleColor:btnColor forState:UIControlStateNormal];
if(style.bgColor){
[button setBackgroundColor:style.bgColor];
}
[button.layer setCornerRadius:3];
[button.layer setMasksToBounds:YES];
[self.actionView addSubview:button];
[button addTarget:self action:@selector(clickActionButton:) forControlEvents:UIControlEventTouchUpInside];
}
- (void)clickActionButton:(BDUnHightedBtn*)button
{
BDNomalAlertAction *action = self.actionArray[button.tag];
WEAK_SELF(action);
if(action.actionHandler){
action.actionHandler(weakaction);
}
[self dismissAnimation];
}
- (void)showAlertView
{
//设置actionview中的button的frame
NSInteger count = self.actionView.subviews.count;
CGFloat leftInset = _actionBtnLeftInset;
CGFloat actionBtnWidth = (self.actionView.width - ((count-1)*_actionBtnMargin)-(2*leftInset))/count;
if(actionBtnWidth >_actionBtnMaxWidth){
actionBtnWidth = _actionBtnMaxWidth;
//那么需要调整初始x
leftInset = (self.actionView.width - (actionBtnWidth*count+ (count-1)*_actionBtnMargin))*0.5;
}
CGFloat actionBtnHeight = self.actionView.height-2*15;
for (int i = 0; i<self.actionView.subviews.count; i++) {
CGFloat actionBtnX = leftInset+(actionBtnWidth+_actionBtnMargin)*I;
BDUnHightedBtn *button = self.actionView.subviews[I];
button.frame = CGRectMake(actionBtnX, 15, actionBtnWidth, actionBtnHeight);
}
[self animationAlert:self.contentView];
[[UIApplication sharedApplication].keyWindow addSubview:self];
}
- (void)animationAlert:(UIView *)view
{
CAKeyframeAnimation *popAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];
popAnimation.duration = 0.25;
popAnimation.values = @[[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.2f, 1.2f, 1.0f)],
[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.1f, 1.1f, 1.0f)],
[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.05f, 1.05f, 1.05f)],
[NSValue valueWithCATransform3D:CATransform3DIdentity]];
popAnimation.keyTimes = @[@0.0f, @0.2f, @0.4f, @1.0f];
popAnimation.timingFunctions = @[[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut],
[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut],
[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
[view.layer addAnimation:popAnimation forKey:nil];
}
- (void)dismissAnimation
{
[UIView animateWithDuration:0.25 animations:^{
self.alpha = 0;
}];
CABasicAnimation *scaleAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
scaleAnimation.toValue = [NSNumber numberWithFloat:0.4];
scaleAnimation.duration = 0.3f;
scaleAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
[self.contentView.layer addAnimation:scaleAnimation forKey:nil];
[BDPublicWays outTimeShow:0.25 action:^{
[self removeFromSuperview];
}];
}
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下面是效果图
IMG_0526.PNG
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