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POInheriting Required XML Attributes from Custom Theme
 

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    <h2>The Problem:</h2> <p>I have several TextViews that share a large number of identical attributes. I'd like to apply the following style to all the TextViews.</p> <pre><code>&lt;!-- TextView --&gt; &lt;style name="fieldLabel" parent="@android:style/Widget.TextView"&gt; &lt;item name="android:layout_width"&gt;fill_parent&lt;/item&gt; &lt;item name="android:layout_height"&gt;wrap_content&lt;/item&gt; &lt;item name="android:layout_weight"&gt;0.7&lt;/item&gt; &lt;item name="android:textSize"&gt;18sp&lt;/item&gt; &lt;/style&gt; </code></pre> <p>But for some reason, when I apply this style as an activity-wide theme I get this error:</p> <pre><code>09-08 15:57:17.034: ERROR/AndroidRuntime(5269): Caused by: java.lang.RuntimeException: Binary XML file line #38: You must supply a layout_width attribute. </code></pre> <p>This is <em>only</em> happens when I try to apply this style as a theme. Because, when I add</p> <pre><code>style="@style/fieldLabel" </code></pre> <p>individually to every TextView's attributes it works as expected, so the error is coming from trying to apply this theme to the <em>entire activity.</em></p> <hr> <h2>The Code:</h2> <p><strong>styles.xml:</strong></p> <pre><code>&lt;style name="CustomActivityStyle" parent="android:Theme"&gt; &lt;!--This is theme I am trying to apply --&gt; &lt;item name="android:textViewStyle"&gt;@style/fieldLabel&lt;/item&gt; &lt;/style&gt; &lt;!-- TextView --&gt; &lt;style name="fieldLabel" parent="@android:style/Widget.TextView"&gt; &lt;item name="android:layout_width"&gt;fill_parent&lt;/item&gt; &lt;item name="android:layout_height"&gt;wrap_content&lt;/item&gt; &lt;item name="android:layout_weight"&gt;0.7&lt;/item&gt; &lt;item name="android:textSize"&gt;18sp&lt;/item&gt; &lt;/style&gt; </code></pre> <p><strong>myactivity.xml:</strong></p> <pre><code>&lt;!-- This is an example of one of the TextViews --&gt; &lt;TextView android:id="@+id/name_label" android:text="@string/name_label" /&gt; </code></pre> <p><strong>AndroidManifest.xml:</strong></p> <pre><code>&lt;!-- Implementing the theme in the Manifest --&gt; &lt;activity android:name=".MyActivity" android:configChanges="orientation" android:theme="@style/CustomActivityStyle" android:label="@string/my_title"&gt; &lt;/activity&gt; </code></pre> <p>There is another thread on this issue <a href="https://stackoverflow.com/questions/5642597/must-supply-a-layout-height-but-its-in-my-style-resources">here</a>, but I decided to ask a new question instead of reviving the old one.</p> <p><strong>To Summarize:</strong></p> <p>I do know that I could easily make this work by simply adding the layout_width and layout_height attributes, <em>or</em> by explicitly adding the style="@style/fieldLabel" to each TextView. But the point of this question is more to improve my (and hopefully others) coding conventions, as well as making the code itself more readable and reusable.</p> <p>I am actually very surprised that no one has come across this issue before, and that this is not more of a standard way of formatting.</p> <p>Thanks for any help.</p>
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    1. USMatt Garriott
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    1. COThis is usually a layout related exception, can you post the full stacktrace and layout file.
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      1. USDan S
    2. CO@Dan I've edited my original question to include the full stack trace and the entire layout file. Thanks for helping!
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      1. USMatt Garriott
 

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