又一个自定义UIView子类

Question

我想通过子类化UIView来创建一个自定义类，如下所示：

哦，文字说身体视图应该是80px高，50px 但我似乎无法做到对。我有这样的类标题：

#import <UIKit/UIKit.h>

@interface MessageView : UIView

@property (strong, nonatomic)UIImage *backgroundImage;
@property (strong, nonatomic)UITextView *messageView;
@property (strong, nonatomic)UILabel *titleLabel;

- (id)initWithBackgroundImage:(NSString*)background;

- (void)setTitle:(NSString*)titleMessage;
- (void)setBody:(NSString*)bodyMessage;

@end

现在我将通过调用initWithBackgroundImage创建这些视图，我将传递背景图像文件名。该示例显示了其中一个图像。我如何实现init方法，以便init将创建一个类似于示例的主体，除了文本将为空？

我对init方法的徒劳尝试是这样的：

- (id)initWithBackgroundImage:(NSString*)background
{
    self = [super init];//[super initWithFrame:CGRectMake(0, 0, 270, 100)];
    if (self)
    {
        backgroundImage = [[UIImage imageNamed:background] retain];
        messageView = [[UITextView alloc] initWithFrame:CGRectMake(10, 40, 250, 50)];
        titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 250, 20)];
    }
    return self;
}

但什么都没发生。完成后，我将通过setter方法设置文本。我想通过setCenter(x, y)在最终视图中设置位置。我希望班级有＆＃34;修复＆＃34;宽度和高度。

谢谢！

Answer 1

修改

   - (id)initWithBackgroundImage:(NSString*)background
    {
        self = [super init];//[super initWithFrame:CGRectMake(0, 0, 270, 100)];
        if (self)
        {
            UIImageView *bg  = [[UIImageView alloc] initWithImage:[UIImage imageNamed:background]];      
            messageView = [[UITextView alloc] initWithFrame:CGRectMake(10, 40, 250, 50)];
            titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 250, 20)];
            [self addSubview:bg];
            [bg release];
            [self addSubview:messageView];
            [messageView release];
            [self addSubview:titleLabel];
            [titleLabel release];
        }
        return self;
}