photostream

问题： I want to get fling gesture detection working in my Android application. 我想 fling 手势检测工作在我的Android应用程序。 What I have is a GridLayout that contains 9 ImageView s. 我所拥有的是一个 GridLayout ，其中包含9个 ImageView 。 The source can be found here: Romain Guys's Grid Layout . 可以在这里找到源： Romain Guys的Grid Layout 。 That file I take is from Romain Guy's Photostream application and has only been slightly adapted. 我带的那个文件来自Romain Guy的 Photostream应用程序 ，只是稍作修改。 For the simple click situation I need only set the onClickListener for each ImageView I add to be the main activity which implements View.OnClickListener .

【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 我想 fling 手势检测工作在我的Android应用程序。 我所拥有的是一个 GridLayout ，其中包含9个 ImageView 。 可以在这里找到源： Romain Guys的Grid Layout 。 我带的那个文件来自Romain Guy的 Photostream应用程序 ，只是稍作修改。 对于简单的点击情况我只需要设置 onClickListener 每个 ImageView 我添加是主要的 activity ，它实现 View.OnClickListener 。 实现识别出 fling 东西似乎无限复杂。 我认为这是因为它可能跨越 views ？ 如果我的活动实现了 OnGestureListener 我将不知道如何将其设置为我添加的 Grid 或 Image 视图的手势侦听器。 public class SelectFilterActivity extends Activity implements View.OnClickListener, OnGestureListener { ... 如果我的活动实现了 OnTouchListener 那么我就没有要 override onFling 方法（它有两个事件作为参数，使我可以确定 onFling 是否值得关注）。 public class

When I try to access pictures from a photo stream, sometimes the [asset defaultRepresentation] method returns nil. According to the documentation this can occur if the asset is not (yet) available locally. This method returns nil for assets from a shared photo stream that are not yet available locally. If the asset becomes available in the future, an ALAssetsLibraryChangedNotification notification is posted. Once I view the photo in the Photos.app it becomes available for my app too, but obviously I'd like to have my app trigger the "download locally" event. I looked at the MyImagePicker