使用 UIImagePicker 编写一个简单的图像浏览器
我想写一个简单的图像浏览器。用户点击按钮，UIImagePicker 弹出，用户选择照片，显示大细节，用户点击“后退”按钮并返回选择器。除了最后一部分（返回选择器）之外，一切都很简单。选择器是一个模态视图，因此我必须关闭它才能显示图片细节。然而，一旦我放弃它，我就无法轻易回到它。 （我必须重新打开它，用户将返回索引而不是最后打开的相册。）我尝试保持选择器打开，但是当我打开时，我的导航控制器的 pushViewController 方法不起作用尝试推动图片细节。我做错了什么？你会如何写一个如此简单的画廊？
I would like to write a simple image browser. User taps a button, UIImagePicker springs up, user selects photo, large detail gets displayed, user taps a ‘back’ button and is back in the picker. Everything is quite easy except the last part, the returning to the picker. The picker is a modal view, so that I have to dismiss it in order to display the picture detail. Once I dismiss it, though, I cannot easily return to it. (I’d have to reopen it and user would get back to the index instead of the last album open.) I tried keeping the picker open, but then my navigation controller’s pushViewController method does not work when I try to push the picture detail. What am I doing wrong? How would you write such a simple gallery?
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哦，那很容易。我必须将图片细节推送到选择器上，而不是主导航控制器上。
Oh, that was easy. I have to push the picture detail onto the picker, not on the main navigation controller.