XML attributes order in Android Studio

问题

I'm facing problem with keeping proper order of XML attributes in Android Studio. As you can see below, the style attribute is between layout_* attributes, but I want it to be ordered by name (like in Eclipse). I'm using standard Intellij code formatter and the Android Studio gives users ability to set your own rules regarding XML ordering. The settings are located in Code Style -> XML -> Arrangement, but it seems not to work or I'm using it wrong. Any ideas how to order XML attributes by name using default code formatter?

<TestView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    style="@style/BackgroundLight"
    android:layout_height="wrap_content">

</TestView>

回答1:

Finally got it.

1. Choose File > Settings > Code Style > XML > Set from > Predefined Style > Android
2. Set File > Settings > Editor > Formatting > Show "Reformat Code" dialog
3. Run formatting on a XML file (CTRL+ALT+L by default)
4. You will see a popup window, set the Rearrange entries flag
5. Disable Reformat Code dialog in the settings

This way every XML file formatting will set the attributes in a proper order.

Edit: Starting with Android Studio 0.2.6 release the XML Android style formatting is set by default, but you still have to set the Rearrange Entries flag manually.

http://tools.android.com/recent/androidstudio026released

Automatically apply the Android XML code style if a code style hasn't already been customized. This will make it possible to automatically order XML attributes (check the "Rearrange Entries" checkbox in the "Code > Reformat Code..." dialog.)

回答2:

UPDATE: the method I described below is an official way to fix this known issue, see: https://developer.android.com/studio/releases

After updating to the newest Android Studio v3.4.2 I found that it doesn't format XML code properly anymore. For instance, attributes ordering didn't work in layouts. It did indentation and namespaces ordering only.

I don't know the reason why it was broken after an update but was lucky to fix this:

1. Go to Settings (CMD + , ) on Mac.
2. Type format in Search box and click on Editor -> XML setting.
3. Click on the Android tab and make the same settings here as it's on a picture:

Settings on a picture quite normal, but of course you can tune this tab setting up to you.

4. Go to the Arrangement tab and you will see something like this:

The reason why attributes are not getting sorted - sorting rules are empty.

5. To fix this:

   1. Choose Scheme and play with Default IDE and Project options. Switching between them may help.
   2. Or choose Scheme which suites your needs and then click on Set from... blue text in right upper corner -> Predefined Style -> Android. You will see restored rules in the window:

I also chose Force rearrange - Always

To save result – click Apply.

Also you can click on a gear icon near Scheme and copy settings or even restore defaults.

P.S. To me standard rules are comfortable, but it can be customized further. Here is an article which may help doing this: https://medium.com/@VeraKern/formatting-xml-layout-files-for-android-47aec62722fc

回答3:

To delete empty lines between them:

Preferences > Code Style > XML > Other > Keep blank lines: 0

And then just reformat your XML files.

回答4:

There is a plugin for IntelliJ which might do what you're after...

http://plugins.jetbrains.com/plugin/?idea&pluginId=6546

回答5:

File > Settings > Editor > XML > Arrangement Select Scheme and choose Default

来源：https://stackoverflow.com/questions/18206019/xml-attributes-order-in-android-studio