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Merge "docs: Adding info on Android Studio support for data binding" into mnc-docs

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Dan Yu
2015-12-11 21:27:33 +00:00
committed by Android (Google) Code Review
parent ccdbbea245 daa41bb4f4
commit 04e0d53567
1 changed files with 33 additions and 2 deletions
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35
docs/html/tools/data-binding/guide.jd
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@@ -131,6 +131,11 @@ page.tags="databinding", "layouts"
</li>
</ol>
</li>
<li>
<a href="#studio_support">Android Studio Support for Data Binding</a>
</li>
</ol>
</div><!-- qv -->
</div><!-- qv-wrapper -->
@@ -211,8 +216,9 @@ android {
must configure data binding in its <code>build.gradle</code> file as well.</p>
<p>Also, make sure you are using a compatible version of Android Studio.
<strong>Android Studio 1.3</strong> adds the code-completion and layout-preview
support for data binding.</p>
<strong>Android Studio 1.3</strong> and later provides support for data binding as described in
<a href="#studio_support">Android Studio Support for Data Binding</a>.
</p>
<h2 id="data_binding_layout_files">
Data Binding Layout Files
@@ -1643,3 +1649,28 @@ public static ColorDrawable convertColorToDrawable(int color) {
android:layout_width="wrap_content"
android:layout_height="wrap_content"/&gt;
</pre>
<h3 id="studio_support">Android Studio Support for Data Binding</h3>
<p>
Android Studio supports syntax highlighting of data binding expressions, and flags any expression
language syntax errors in the editor.
</p>
<p>
The Preview pane displays default values for data binding expressions if provided. In the following
example excerpt of an element from a layout XML file, the Preview pane displays the
{@code PLACEHOLDER} default text value in the <code>TextView</code>.
</p>
<pre>
&lt;TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="&commat;{user.firstName, default=PLACEHOLDER}"/&gt;
</pre>
<p>
If you need to display a default value during the design phase of your project, you
can also use tools attributes instead of default expression values, as described in
<a class="external-link" href="http://tools.android.com/tips/layout-designtime-attributes">
Designtime Layout Attributes</a>.
</p>