how the background color changes on button click in android api 4.1 in android?
<p>I want to know that on button click how the background color changed here and it takes place more than the button size..Can anybody tell e that from where the background color is coming to this??
inside the android api 4.1, at path: <strong>Android API-res-layout-log_text_box_1.xml</strong> file looks like this.
    
    

<pre><code>     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
--&gt;

&lt;LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"&gt;

    &lt;Button
        android:id="@+id/add"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/log_text_box_1_add_text"/&gt;

    &lt;com.example.android.apis.text.LogTextBox
        android:id="@+id/text"
        android:background="@drawable/box"
        android:layout_width="match_parent"
        android:layout_height="0dip"
        android:layout_weight="1"
        android:scrollbars="vertical"/&gt;

    &lt;Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/log_text_box_1_do_nothing_text"/&gt;

&lt;/LinearLayout&gt;
</code></pre>
