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@benvd
Created May 31, 2013 09:16
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Extension of Volley's NetworkImageView that fades in images as they're loaded
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.drawable.*;
import android.util.AttributeSet;
import com.android.volley.toolbox.NetworkImageView;
public class FadeInNetworkImageView extends NetworkImageView {
private static final int FADE_IN_TIME_MS = 250;
public FadeInNetworkImageView(Context context) {
super(context);
}
public FadeInNetworkImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public FadeInNetworkImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
public void setImageBitmap(Bitmap bm) {
TransitionDrawable td = new TransitionDrawable(new Drawable[]{
new ColorDrawable(android.R.color.transparent),
new BitmapDrawable(getContext().getResources(), bm)
});
setImageDrawable(td);
td.startTransition(FADE_IN_TIME_MS);
}
}
@Teiby1
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Teiby1 commented Jul 4, 2015

ColorDrawable can be replaced by getDrawable() if setDefaultImageResId() was called before.

@folivares
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Very useful! Is possible to remove the effect once that an image has been viewed? In a list of images the effect is annoying when scroll down and scroll up

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