android - what size to use for background? -


i want use image of backgrounds, not know size must set different size android, there several specification can tell me need use size in pixels . application

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:background="@drawable/your_selected_background_image"  >

android:layout_width="fill_parent" , android:layout_height="fill_parent" attributes in main layout fill background of app image have selected on device.


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