implement a spinning activity indicator similar to iOS in Android

Question

I am trying to implement the spinning activity similar to the the one I have placed below in Android. I believe I should use the ProgressDialog. My issue arises from how to actually manipulate the ProgressDialog to appear like the activity indicator.

Any thoughts are welcome. A link to an example would even be better.

Thanks.

REEDIT:

myProgress.java

public class myProgress extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    ProgressDialog d = (ProgressDialog)findViewById(R.id.progres);

main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/progres"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
>
<ProgressBar  
    android:id="@+id/progressBar"
    android:indeterminate="true" 
    style="?android:attr/progressBarStyleLarge"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true" 
/>
</RelativeLayout>

Answer 1

this is how i achieve it

here is the code

@Override   
protected Dialog onCreateDialog(int id) {
    switch (id) {
    case DIALOG_LOADING:
        final Dialog dialog = new Dialog(this, android.R.style.Theme_Translucent);          
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        dialog.setContentView(R.layout.loading);
        dialog.setCancelable(true);
        dialog.setOnCancelListener(new OnCancelListener() {             
            @Override
            public void onCancel(DialogInterface dialog) {
                //onBackPressed();
            }
        });
    return dialog;  

    default:
        return null;
    }
};

here is the loading.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/progres"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
>
<ProgressBar  
    android:indeterminate="true" 
    style="?android:attr/progressBarStyleLarge"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true" 
/> 
</RelativeLayout>

call the dialog with

showDialog(DIALOG_LOADING);

hide it using

dismissDialog(DIALOG_LOADING);

UPDATE

if you want and custom indicator you can do the following in the layout.xml.

1. replace the ProgressBar with an ImageView
2. set the background of the ImageView to a AnimationDrawable
3. you can start the animation in onPrepareDialog