uibutton 对象传递

iteye_17299

于 2012-09-24 15:49:16 发布

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分类专栏： ios开发学习相关

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本文介绍如何使用UIButton加载并显示图片，以及通过按钮点击事件触发图片详情查看功能。文中展示了如何从不同数组中选取图片URL，利用NSURL加载图片，并设置为UIButton的背景图像。同时实现了点击按钮后展示图片详细信息的功能。

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UIButton *btn = (UIButton *)[cell viewWithTag:101];
    btn.frame = CGRectMake(5, 5, 150, hei - 10);
    [btn addTarget:self action:@selector(selectPic:) forControlEvents:UIControlEventTouchUpInside];

    if ([indexPath section]==0) {
        picture = [guangPicLeftArray objectAtIndex:[indexPath row]];
    }else{
        picture = [guangPicRightArray objectAtIndex:[indexPath row]];
    }

    [picView setImageWithURL:[NSURL URLWithString:picture.picUrl]];
    [btn setImage:picView.image forState:UIButtonTypeCustom];
    //begin
    if (picture!=nil) {
         [btnToPicDic setObject:picture forKey:btn.description];
        NSLog(btn.description);
    }



- (void)selectPic:(UIButton *)aBtn{
    DetailViewController *detail = [[DetailViewController alloc]init];
    detail.picture = [btnToPicDic objectForKey:aBtn.description];
    [self presentModalViewController:detail animated:YES];
}