最近需要使用到提示框（警告框）進行資訊的展示和提醒，是以進行了一個類的封裝，想用Swift調用此OC檔案，但是發現有些困難，是以暫時先把OC代碼進行展示，随後再好好研究一下在Swift中的使用。
對于封裝檔案，首先要設計界面，其次是資料之間的傳遞過程
初始化樣式方法：
- (instancetype)initWithTitle:(NSString *)title icon:(UIImage *)icon message:(NSString *)message delegate:(id<BHAlertViewDelegate>)delegate buttonTitles:(NSString *)buttonTitles, ... {
if (self = [super initWithFrame:[UIScreen mainScreen].bounds]) {
_icon = icon;
_title = title;
_message = message;
_delegate = delegate;
_buttonArray = [NSMutableArray array];
_buttonTitleArray = [NSMutableArray array];
//在C中，當我們無法列出傳遞函數的所有實參的類型和數目時,可以用省略号指定參數表，下面就是為了實作方法中"..."的效果
va_list args;
va_start(args, buttonTitles);
if (buttonTitles)
{
[_buttonTitleArray addObject:buttonTitles];
while (1)
{
NSString * otherButtonTitle = va_arg(args, NSString *);
if(otherButtonTitle == nil) {
break;
} else {
[_buttonTitleArray addObject:otherButtonTitle];
}
}
}
va_end(args);
self.backgroundColor = [UIColor clearColor];
_backgroundView = [[UIView alloc] initWithFrame:self.frame];
_backgroundView.backgroundColor = [UIColor blackColor];
[self addSubview:_backgroundView];
[self initContentView];
}
return self;
}
擷取标題、資訊的大小
//----------擷取各控件Size大小
- (CGSize)getTitleSize {
UIFont *font = [UIFont systemFontOfSize:TITLE_FONT_SIZE];
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping;
NSDictionary *attributes = @{NSFontAttributeName:font, NSParagraphStyleAttributeName:paragraphStyle.copy};
CGSize size = [_title boundingRectWithSize:CGSizeMake(contentViewWidth - (MARGIN_LEFT_SMALL + MARGIN_RIGHT_SMALL + _iconImageView.frame.size.width + SPACE_SMALL), 2000) options:NSStringDrawingUsesLineFragmentOrigin attributes:attributes context:nil].size;
size.width = ceil(size.width);
size.height = ceil(size.height);
return size;
}
- (CGSize)getMessageSize {
UIFont *font = [UIFont systemFontOfSize:MESSAGE_FONT_SIZE];
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineSpacing = MESSAGE_LINE_SPACE;
NSDictionary *attributes = @{NSFontAttributeName:font, NSParagraphStyleAttributeName:paragraphStyle.copy};
CGSize size = [_message boundingRectWithSize:CGSizeMake(contentViewWidth - (MARGIN_LEFT_LARGE + MARGIN_RIGHT_LARGE), 2000) options:NSStringDrawingUsesLineFragmentOrigin attributes:attributes context:nil].size;
size.width = ceil(size.width);
size.height = ceil(size.height);
return size;
}
設定代理方法
//----------按鈕點選執行代理方法
- (void)buttonWithPressed:(UIButton *)button {
if (_delegate && [_delegate respondsToSelector:@selector(alertView:clickedButtonAtIndex:)]) {
NSInteger index = [_buttonTitleArray indexOfObject:button.titleLabel.text];
[_delegate alertView:self clickedButtonAtIndex:index];
}
[self hide];
}
然後添加一些設定字型大小顔色，顯示，隐藏的方法
最後是對封裝類的使用
BHAlertView *bhAlertV = [[BHAlertView alloc] initWithTitle:@"設定按鈕字型的顔色和大小" icon:[UIImage imageNamed:@"baby_alert_icon"] message:@"設定按鈕字型的顔色和大小設定按鈕字型的顔色和大小" delegate:self buttonTitles:@"取消",@"修改",@"删除", nil];
//設定标題和内容的字型顔色、大小
[bhAlertV setTitleColor:[UIColor redColor] fontSize:17];
[bhAlertV setMessageColor:[UIColor cyanColor] fontSize:12];
//設定按鈕字型的顔色和大小
[bhAlertV setButtonTitleColor:[UIColor orangeColor] fontSize:15 atIndex:0];
[bhAlertV setButtonTitleColor:[UIColor blueColor] fontSize:17 atIndex:1];
[bhAlertV setButtonTitleColor:[UIColor purpleColor] fontSize:19 atIndex:2];
[bhAlertV show];
效果圖：
