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Android：图形布局无法正常工作 - 不显示任何内容

[英]Android: Graphical Layout not working - doesn't show anything

原文 2012-02-26 15:19:57 8 5 android/ layout

My situation is: I once made an android project(2.2 version) but soon needed to format my computer. 我的情况是：我曾经做过一个android项目（2.2版本）但很快就需要格式化我的电脑。 After formatting, I downloaded eclipse again but when I imported my project, I wasn't able to use the 'graphical layout' menu for xml. 格式化后，我再次下载了eclipse，但是当我导入项目时，我无法使用xml的“图形布局”菜单。 It doesn't show me anything like the picture below. 它没有向我显示如下图所示的内容。

http://img525.imageshack.us/img525/3586/19978552.png

I cleaned the project and updated the Android SDK, however, none of these seemed to work well. 我清理了项目并更新了Android SDK，但是，这些似乎都没有。 What could be causing this? 可能是什么导致了这个？

5 个解决方案

Try restarting Eclipse. 尝试重新启动Eclipse。 Usually that solves the problem for me when that happens. 通常，当发生这种情况时，我会解决问题。

Right click on your layout xml file and select Open With -> Android Layout Editor . 右键单击布局xml文件，然后选择打开方式 - > Android布局编辑器 。 It will force eclipse to open file in android's layout editor mode 它将强制eclipse在android的布局编辑器模式下打开文件

None of above worked for me. 以上都不适合我。 what worked for me is: 对我有用的是：

1- Select a Google APIs Project Build Target rather than one of the Android XX ones. 1-选择Google API项目构建目标而不是Android XX项目之一。 This setting is in right click on project -> Properties->Android. 右键单击项目 - >属性 - > Android，此设置。

2- Make a change in XML and save it. 2-对XML进行更改并保存。 Now switch back to "Graphical Layout" and it will show the layout. 现在切换回“图形布局”，它将显示布局。

For some, only 2nd step works. 对于一些人来说，只有第二步有效。

This Question was asked 3 year ago, I am sure that you have get your solution, however i was also facing the same problem but got the solution in eclipse, here it is:- 这个问题在3年前被问过，我相信你已经得到了解决方案，但是我也遇到了同样的问题但在eclipse中得到了解决方案，这里是： -

1)Goto help->AboutEclipse->Installation details. 1）转到help-> AboutEclipse->安装细节。
2)check the version of Android DDMS, Android development tool, Android hierarchy viewer, Android native development tool, Android trace view and tracer for openGl ES in installed software tab. 2）在已安装的软件选项卡中检查Android DDMS，Android开发工具，Android层次结构查看器，Android本机开发工具，Android跟踪视图和openGl ES跟踪器的版本。
3)If they have different version than you have to update all of them. 3）如果他们的版本不同，则必须更新所有版本。
4)Goto help->check for update in eclipse and follow the instruction. 4）转到帮助 - >在eclipse中检查更新并按照说明操作。
5)Then restart eclipse. 5）然后重启eclipse。

This solve my problem. 这解决了我的问题。

The topic seems a little bit cold, but I wanted to add it nonetheless. 这个话题看起来有点冷，但我还想补充一下。

I had a similar problem with my layouts recently. 最近我的布局遇到了类似的问题。 When i create a project it automatically creates the layouts in the latest version of Android (eclipse shows it as version 22 of android as of today). 当我创建一个项目时，它会自动在最新版本的Android中创建布局（eclipse将其显示为今天的Android 22版本）。 But i can't see anything. 但我看不到任何东西。 So i just change the version to, say 18, and it shows ok. 所以我只是将版本更改为，比方说18，它显示确定。 Furthermore if i want to change it back to version 22 it throws and exception, saying that a class can't be instantiated. 此外，如果我想将其更改回版本22，则抛出异常，表示无法实例化类。 (I am probably missing a class or a library on my system.) （我可能在系统中缺少一个类或一个库。）

Therefore if you cant see the layout it might be a good idea to switch back to earlier versions for development. 因此，如果您无法看到布局，那么切换回早期版本进行开发可能是个好主意。 cheers. 干杯。