AQGridViewCell定制

Question

我希望通过为每个单元格添加标题，日期和图像来自定义AQGridViewCell。

到目前为止我尝试的是：

//查看控制器

- (AQGridViewCell *) gridView: (AQGridView *) gridView cellForItemAtIndex: (NSUInteger) index
{
    static NSString * CellIdentifier = @"CellIdentifier";

    IssueCell * cell = (IssueCell *)[self.gridView dequeueReusableCellWithIdentifier: CellIdentifier];
    if ( cell == nil )
    {
        cell = [[IssueCell alloc] initWithFrame: CGRectMake(0.0, 0.0, 72.0, 72.0) reuseIdentifier: CellIdentifier];
    }

    //This model object contains the title, picture, and date information
    IssueModel *m = (IssueModel *)[self.issues objectAtIndex:index];
    [cell setIssueModel:m];
    return cell;
}

// Cell class

#import "IssueCell.h"
#import <QuartzCore/QuartzCore.h>

@implementation IssueCell
@synthesize issueModel;

- (id) initWithFrame: (CGRect) frame reuseIdentifier:(NSString *) reuseIdentifier
{
    self = [super initWithFrame: frame reuseIdentifier: reuseIdentifier];
    if ( self == nil )
        return ( nil );


    self.contentView.backgroundColor = [UIColor redColor];
    self.backgroundColor = [UIColor blueColor];

    self.contentView.opaque = NO;
    self.opaque = NO;

    self.selectionStyle = AQGridViewCellSelectionStyleNone;

    return self;
}
@end

我的问题是，因为在我访问模型对象之前调用了init，我可以在哪里设置我的单元格的标题，图片和日期？

Answer 1

您必须在initWithFrame中初始化UI组件。例如：

在IssueCell的界面中添加您想要的UI变量：

@interface IssueCell : AQGridViewCell {

     UIImageView *im;
     UILabel *dateLabel;
}

- (id) initWithFrame: (CGRect) frame reuseIdentifier:(NSString *) reuseIdentifier
{
    self = [super initWithFrame: frame reuseIdentifier: reuseIdentifier];
    if ( self == nil )
        return ( nil );

    self.contentView.backgroundColor = [UIColor redColor];
    self.backgroundColor = [UIColor blueColor];

    self.contentView.opaque = NO;
    self.opaque = NO;

    self.selectionStyle = AQGridViewCellSelectionStyleNone;

    im = [[UIImageView alloc] initWithFrame:yourImageViewFrameHere];
    dateLabel = [[UILabel alloc] initWithFrame:yourLabelFrameHere];

    [self addSubview:im];
    [self addSubview:dateLabel];

    return self;
}
@end

稍后，您将在cellForItemAtIndex方法中指定所需的值。例如：

- (AQGridViewCell *) gridView: (AQGridView *) gridView cellForItemAtIndex: (NSUInteger) index
{
    static NSString * CellIdentifier = @"CellIdentifier";

    IssueCell * cell = (IssueCell *)[self.gridView dequeueReusableCellWithIdentifier: CellIdentifier];
    if ( cell == nil )
    {
        cell = [[IssueCell alloc] initWithFrame: CGRectMake(0.0, 0.0, 72.0, 72.0) reuseIdentifier: CellIdentifier];
    }

    //This model object contains the title, picture, and date information
    //
    IssueModel *m = (IssueModel *)[self.issues objectAtIndex:index];
    [cell.im setImage: m.picture];
    [cell.dateLabel setText:[date localizedDescription]];
    return cell;
}

不要将模型数据存储在UI组件中。那不是不。保持模型与UI分离。这只是一个伪代码，没有经过测试，因为我这里没有我的mac。

如果有帮助，请告诉我。