**Note:** The Android `layoutopt` tool has been replaced
by the `lint` tool beginning in SDK Tools revision 16. The `lint` tool reports UI
layout performance issues in a similar way as `layoutopt` and detects additional problems.

For more information about using `lint`, see
[Improve your code with lint checks](https://developer.android.com/tools/debugging/improving-w-lint).

`layoutopt` is a command-line tool that helps you optimize the
layouts and layout hierarchies of your applications. This document is a reference for the available command line options.


### Usage

To run `layoutopt` against a given list of layout resources:  

```
layoutopt <file_or_directory> ...
```

For example:  

```
$ layoutopt res/layout-land
```  

```
$ layoutopt res/layout/main.xml res/layout-land/main.xml
```