Merge "docs: Data Binding 2.0 updates b/26892478" into mnc-docs am: 2ebdbd2 am: a9b10e3 am: e10717c (64607b17) · Commits · e / os / android_frameworks_base

docs/html/tools/data-binding/guide.jd

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		<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>
		Android Studio supports many of the code editing features for data binding code.
		For example, it supports the following features for data binding expressions:</p>
		<ul>
		<li>Syntax highlighting</li>
		<li>Flagging of expression language syntax errors</li>
		<li>XML code completion</li>
		<li>References, including <a class="external-link"
		href="https://www.jetbrains.com/help/idea/2016.1/navigation-in-source-code.html?origin=old_help">
		navigation</a> (such as navigate to a declaration) and
		<a class="external-link"
		href="https://www.jetbrains.com/help/idea/2016.1/viewing-inline-documentation.html?origin=old_help">
		quick documentation</a></li>
		</ul>

		<p class="note"><strong>Note:</strong> Arrays and a
		<a href="https://docs.oracle.com/javase/tutorial/java/generics/types.html"
		class="external-link">generic type</a>, such as the {@link
		android.databinding.Observable} class, might display
		errors when there are no errors.</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>.
		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>
		@@ -1671,8 +1689,11 @@ example excerpt of an element from a layout XML file, the Preview pane displays
		</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">
		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>