Transparent background in Android project

Tutorial on how to create transparent background activity in your android app project.

First goto your AndroidManifest.xml and use this code as a theme of your activity android:theme="@style/Theme.Transparent" my full sample codes below.

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.mycompany.myapp" > <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:theme="@style/Theme.Transparent" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
Screenshot:

Next goto your style.xml located at res/values/style.xml and add this code <?xml version="1.0" encoding="utf-8"?> <resources> <style name="Theme.Transparent" parent="android:Theme"> <item name="android:windowIsTranslucent">true</item> <item name="android:windowBackground">@android:color/transparent</item> <item name="android:windowContentOverlay">@null</item> <item name="android:windowNoTitle">true</item> <item name="android:windowIsFloating">true</item> <item name="android:backgroundDimEnabled">false</item> </style> </resources>

Make sure your not set the background image or color in your layout. this is my sample layout. <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center" android:background="#4E2F2F2F"> <ImageView android:src="@drawable/ic_launcher" android:layout_width="150dp" android:layout_height="150dp" android:layout_marginRight="5dp"/> <TextView android:text="Sample Transparent Background" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#151515" android:textColor="#F9F9F9"/> </LinearLayout>
end of tutorial.