public class ZoomOutPageTransformer implements ViewPager.PageTransformer {
private static final float MAX_SCALE = 1.0f;
private static final float MIN_SCALE = 0.9f;
@Override
public void transformPage(View view, float position) {
if (position < -1) {
view.setScaleX(MIN_SCALE);
view.setScaleY(MIN_SCALE);
} else if (position <= 1) {
float scaleFactor = MIN_SCALE + (1 - Math.abs(position)) * (MAX_SCALE - MIN_SCALE);
view.setScaleX(scaleFactor);
if (position > 0) {
view.setTranslationX(-scaleFactor * 2);
} else if (position < 0) {
view.setTranslationX(scaleFactor * 2);
}
view.setScaleY(scaleFactor);
} else {
view.setScaleX(MIN_SCALE);
view.setScaleY(MIN_SCALE);
}
}
}
viewPage布局设置 android:clipChildren="false"
ViewPager.setPageTransformer(true, new ZoomOutPageTransformer());
