2021-08-02 1.更新

JLChen

2021-08-02 38f4fb064df09f344fc3237409c76a9fba2a8a9e

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//
//  DTAlertView.m
//  DTFoundation
//
//  Created by Oliver Drobnik on 11/22/12.
//  Copyright (c) 2012 Cocoanetics. All rights reserved.
//
 
#import "DTAlertView.h"
 
@interface DTAlertView() <UIAlertViewDelegate>
 
@end
 
@implementation DTAlertView
{
    NSMutableDictionary *_actionsPerIndex;
 
    DTAlertViewBlock _cancelBlock;
}
 
- (void)dealloc
{
    [super setDelegate:nil];
    self.alertViewDelegate = nil;
}
 
// designated initializer
- (id)init
{
    self = [super init];
    if (self)
    {
        _actionsPerIndex = [[NSMutableDictionary alloc] init];
        [super setDelegate:self];
    }
    return self;
}
 
- (id)initWithTitle:(NSString *)title message:(NSString *)message
{
    return [self initWithTitle:title message:message delegate:nil cancelButtonTitle:nil otherButtonTitles:nil];
}
 
- (id)initWithTitle:(NSString *)title message:(NSString *)message delegate:(id)delegate cancelButtonTitle:(NSString *)cancelButtonTitle otherButtonTitles:(NSString *)otherButtonTitles, ...
{
    self = [self init];
    if (self)
    {
        self.title = title;
        self.message = message;
        
        if (otherButtonTitles != nil) {
            [self addButtonWithTitle:otherButtonTitles];
            va_list args;
            va_start(args, otherButtonTitles);
            NSString *title = nil;
            while( (title = va_arg(args, NSString *)) ) {
                [self addButtonWithTitle:title];
            }
            va_end(args);
        }
        if (cancelButtonTitle) {
            [self addCancelButtonWithTitle:cancelButtonTitle block:nil];
        }
        
        self.alertViewDelegate = delegate;
    }
    return self;
}
 
- (NSInteger)addButtonWithTitle:(NSString *)title block:(DTAlertViewBlock)block
{
    NSInteger retIndex = [self addButtonWithTitle:title];
 
    if (block)
    {
        NSNumber *key = [NSNumber numberWithInteger:retIndex];
        [_actionsPerIndex setObject:[block copy] forKey:key];
    }
 
    return retIndex;
}
 
- (NSInteger)addCancelButtonWithTitle:(NSString *)title block:(DTAlertViewBlock)block
{
    NSInteger retIndex = [self addButtonWithTitle:title block:block];
    [self setCancelButtonIndex:retIndex];
 
    return retIndex;
}
 
- (void)setCancelBlock:(DTAlertViewBlock)block
{
    _cancelBlock = block;
}
 
# pragma mark - UIAlertViewDelegate
 
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    NSNumber *key = [NSNumber numberWithInteger:buttonIndex];
    
    DTAlertViewBlock block = [_actionsPerIndex objectForKey:key];
    if (block)
    {
        block();
    }
 
    if ([self.alertViewDelegate respondsToSelector:@selector(alertView:clickedButtonAtIndex:)])
    {
        [self.alertViewDelegate alertView:self clickedButtonAtIndex:buttonIndex];
    }
}
 
- (void)alertViewCancel:(UIAlertView *)alertView
{
    if (_cancelBlock)
    {
        _cancelBlock();
    }
 
    if ([self.alertViewDelegate respondsToSelector:@selector(alertViewCancel:)])
    {
        [self.alertViewDelegate alertViewCancel:self];
    }
}
 
- (void)willPresentAlertView:(UIAlertView *)alertView
{
    if ([self.alertViewDelegate respondsToSelector:@selector(willPresentAlertView:)])
    {
        [self.alertViewDelegate willPresentAlertView:self];
    }
}
 
- (void)didPresentAlertView:(UIAlertView *)alertView
{
    if ([self.alertViewDelegate respondsToSelector:@selector(didPresentAlertView:)])
    {
        [self.alertViewDelegate didPresentAlertView:self];
    }
}
 
- (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex
{
    if ([self.alertViewDelegate respondsToSelector:@selector(alertView:willDismissWithButtonIndex:)])
    {
        [self.alertViewDelegate alertView:self willDismissWithButtonIndex:buttonIndex];
    }
}
 
- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex
{
    if ([self.alertViewDelegate respondsToSelector:@selector(alertView:didDismissWithButtonIndex:)])
    {
        [self.alertViewDelegate alertView:self didDismissWithButtonIndex:buttonIndex];
    }
}
 
- (BOOL)alertViewShouldEnableFirstOtherButton:(UIAlertView *)alertView
{
    if ([self.alertViewDelegate respondsToSelector:@selector(alertViewShouldEnableFirstOtherButton:)])
    {
        return [self.alertViewDelegate alertViewShouldEnableFirstOtherButton:self];
    }
 
    return YES;
}
 
 
#pragma mark - Properties
 
 
- (void)setDelegate:(id <UIAlertViewDelegate>)delegate
{
    if (delegate)
    {
        NSLog(@"Calling setDelegate is not supported! Use setAlertViewDelegate instead");
    }
}
 
@end