SOLUTION: finally it helped add this line of code: imageView.setScaleType(ImageView.ScaleType.FIT_XY);
public View makeView() {
ImageView imageView = new ImageView(Introduction.this);
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
LayoutParams params = new ImageSwitcher.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
imageView.setLayoutParams(params);
return imageView;
}