I am wondering how I can do the following. I want my app background to be animated (let's say birds flying sort of what live wall papers look like). Is this usually done using GIF background or do I need to code animation or use paint/draw functionality to draw animations (I hope not!)
Any pointer is appreciated as I am not sure how to do that
Thank you
You can do it by using GIF image also, but first convert that GIF to frames
in xml
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/img1"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/img1"
android:layout_centerHorizontal="true"
android:layout_marginTop="156dp"
android:text="submit"
/>
in java
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageView i = (ImageView)findViewById(R.id.img1);
i.setBackgroundResource(R.drawable.gif);
AnimationDrawable pro = (AnimationDrawable)i.getBackground();
pro.start();
}
}
in drawable create animation file
<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/selected" android:oneshot="false">
<item android:drawable="@drawable/frame0" android:duration="50" />
<item android:drawable="@drawable/frame1" android:duration="50" />
<item android:drawable="@drawable/frame2" android:duration="50" />
<item android:drawable="@drawable/frame3" android:duration="50" />
<item android:drawable="@drawable/frame4" android:duration="50" />
<item android:drawable="@drawable/frame5" android:duration="50" />
<item android:drawable="@drawable/frame6" android:duration="50" />
<item android:drawable="@drawable/frame7" android:duration="50" />
<item android:drawable="@drawable/frame8" android:duration="50" />
<item android:drawable="@drawable/frame8" android:duration="50" />
<item android:drawable="@drawable/frame9" android:duration="50" />
<item android:drawable="@drawable/frame10" android:duration="50" />
</animation-list>
Hope this might help you
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