Animation Drawable not working in GingerBread

Question

This question is already been asked,but i didn't find any suitable answers and so I'm posting the question. I've a ProgressBar animation which has multiple images and loads these images like a progressbar. I'm able to run it successfully in 4.0 and higher versions but it doesn't work in 2.3.How to make it work in lower versions?

My Animation Drawable XML file

<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
    android:oneshot="false"
    android:pivotX="50%"
    android:pivotY="50%" >
    <item android:drawable="@drawable/p1_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p2_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p3_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p4_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p5_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p6_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p7_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p8_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p9_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p10_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p11_wheel" android:duration="200"/>
    <item android:drawable="@drawable/p12_wheel" android:duration="200"/>
</animation-list>

My XML File

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_centerInParent="true"/>


</RelativeLayout>

My Java File

package com.example.progressbarsample;

import android.os.Bundle;
import android.app.Activity;
import android.graphics.drawable.AnimationDrawable;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.DrawableContainer;
import android.view.Menu;
import android.widget.ImageView;
import android.widget.ProgressBar;

public class MainActivity extends Activity {
    ImageView progressbar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        progressbar = (ImageView) findViewById(R.id.imageView1);
        progressbar.setBackgroundResource(R.drawable.progressbar);
        final AnimationDrawable frame = (AnimationDrawable) progressbar.getBackground();
        progressbar.post(new Runnable() {

            @Override
            public void run() {
                frame.start();
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

Answer 1

try animating after the view is visible like this:

@Override
public void onWindowFocusChanged (bool hasFocus)
{
    super.onWindowFocusChanged (hasFocus);
    //get the animation from your view
    AnimationDrawable explosionAnimation = (AnimationDrawable) mImageView.getBackground();
    //set it visible and start animation
    explosionAnimation.setVisible (true, true);
    explosionAnimation.start ();
}

The method onWindowFocusChanged from Activity is called after the view is already visible and it gets the focus. So, you will be able to animate your image. I've tried without setVisible but only a static image was shown. The same happens when I started the animation from onResume, onStart, etc. The code above works fine for me, including Android 2.3. I'm currently working with mono (with Xamarin), but I hope it's gonna work for you in Java.

Answer 2

At Last I found a solution to this.

 progressbar = (ImageView) findViewById(R.id.imageView1);
 progressbar.setBackgroundResource(R.drawable.progressbar);
 final AnimationDrawable frame = (AnimationDrawable)getResources.getDrawable(R.drawable.progressbar);  \\progressbar is the anim.xml file
 progressbar.setBackgroundDrawable(frame);
 progressbar.post(new Runnable() {

            @Override
            public void run() {
                frame.start();
            }
        });
    }

Answer 3

I have worked with Drawable Animations and it works for me here my Code:

mImageView.setBackgroundResource(R.drawable.anim);
AnimationDrawable explosionAnimation = (AnimationDrawable) mImageView.getBackground();
explosionAnimation.start();

But i think its becausse of the post, try the code without using the progressbar.post