Terminé utilizando el Custom Progress Bar with Round Corners como base para extraer lo que Harry Joy recomendó. Sin embargo, si desea la misma funcionalidad que la versión del SDK de Android, como intermediate de la clase ProgressBar, tuve que hacer algunos cambios. Los cambios que he realizado permiten definir un dibujo intermedio y animarlo.
Asegúrese de seguir las instrucciones here, pero sustituyendo la clase RoundProgress con esto:
public class RoundProgress extends RelativeLayout {
private ImageView progressDrawableImageView;
private ImageView trackDrawableImageView;
private ImageView backGroundImageView;
private double max = 100;
private AttributeSet attrs2 ;
private Transformation mTransformation;
private AlphaAnimation mAnimation;
private int mBehavior;
private int mDuration;
private Interpolator mInterpolator;
private static Context ctx;
private int bgResource;
public int getMax() {
Double d = new Double(max);
return d.intValue();
}
public double getMaxDouble() {
return max;
}
public void setMax(int max) {
Integer maxInt = new Integer(max);
maxInt.doubleValue();
this.max = max;
}
public void setMax(double max) {
this.max = max;
}
public RoundProgress(Context context, AttributeSet attrs) {
super(context, attrs);
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.round_progress, this);
setup(context, attrs);
}
protected void setup(Context context, AttributeSet attrs)
{
attrs2 = attrs;
ctx = context;
TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.RoundProgress);
//setBackgroundResource(R.drawable.custom_loading_bg);
backGroundImageView = (ImageView) findViewById(R.id.background_image_view);
backGroundImageView.setBackgroundResource(R.drawable.custom_loading_bg);
final String xmlns="http://schemas.android.com/apk/res/com.digiphd.prospec";
bgResource = attrs.getAttributeResourceValue(xmlns,
"progressDrawable", 0);
progressDrawableImageView = (ImageView) findViewById(
R.id.progress_drawable_image_view);
progressDrawableImageView.setBackgroundResource(bgResource);
int trackResource = attrs.getAttributeResourceValue(xmlns, "track", 0);
trackDrawableImageView = (ImageView) findViewById(R.id.track_image_view);
trackDrawableImageView.setBackgroundResource(trackResource);
int progress = attrs.getAttributeIntValue(xmlns, "progress", 0);
setProgress(progress);
int max = attrs.getAttributeIntValue(xmlns, "max", 100);
setMax(max);
int numTicks = attrs.getAttributeIntValue(xmlns, "numTicks", 0);
a.recycle();
ProgressBarOutline outline = new ProgressBarOutline(context);
//addView(outline);
}
public void setProgress(Integer value)
{
setProgress((double) value);
}
public void setProgress(double value) {
ClipDrawable drawable = (ClipDrawable)
progressDrawableImageView.getBackground();
double percent = (double) value/ (double)max;
int level = (int)Math.floor(percent*10000);
drawable.setLevel(level);
}
public void setIntermediate(boolean t)
{
if(t){
progressDrawableImageView.setBackgroundResource(R.drawable.custom_intermediate_bg);
startAnimation();
}else{
progressDrawableImageView.clearAnimation();
progressDrawableImageView.setBackgroundResource(bgResource);
}
}
/**
* <p>Start the indeterminate progress animation.</p>
*/
void startAnimation() {
int visibility = getVisibility();
if (visibility != VISIBLE) {
return;
}
Log.d("INTERMEDIATE","ANIMATION START!");
mDuration = 1000;
if (mInterpolator == null) {
mInterpolator = new LinearInterpolator();
}
mTransformation = new Transformation();
mAnimation = new AlphaAnimation(0.0f, 1.0f);
mAnimation.setRepeatMode(Animation.REVERSE);
mAnimation.setRepeatCount(Animation.INFINITE);
mAnimation.setDuration(mDuration);
mAnimation.setInterpolator(mInterpolator);
mAnimation.setStartTime(Animation.START_ON_FIRST_FRAME);
progressDrawableImageView.startAnimation(mAnimation);
}
}
En su actividad, sólo puede llamar a .setIntermediate (verdadero o falso) cuando sea necesario.
Has hecho mi día. Exactamente lo que necesitaba. – JehandadK