Android Open Source - transitions-everywhere View Overlay Utils

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Back to project page transitions-everywhere.

License

The source code is released under:

Apache License

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Java Source Code

package android.transitions.everywhere.utils;
//from  www  .j  a v  a  2s.  c  o m
import android.annotation.TargetApi;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.view.ViewGroup;

public class ViewOverlayUtils {

    interface ViewOverlayUtilsImpl {
        void addOverlay(ViewGroup sceneRoot, Drawable drawable);

        void removeOverlay(ViewGroup sceneRoot, Drawable drawable);
    }

    static class BaseViewOverlayUtilsImpl implements ViewOverlayUtilsImpl {
        @Override
        public void addOverlay(ViewGroup sceneRoot, Drawable drawable) {
            ViewOverlayPreJellybean viewOverlay = ViewOverlayPreJellybean.getOverlay(sceneRoot);
            viewOverlay.addDrawable(drawable);
        }

        @Override
        public void removeOverlay(ViewGroup sceneRoot, Drawable drawable) {
            ViewOverlayPreJellybean viewOverlay = ViewOverlayPreJellybean.getOverlay(sceneRoot);
            viewOverlay.removeDrawable(drawable);
        }

    }

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
    static class JellyBeanMR2ViewUtilsImpl implements ViewOverlayUtilsImpl {
        @Override
        public void addOverlay(ViewGroup sceneRoot, Drawable drawable) {
            sceneRoot.getOverlay().add(drawable);
        }

        @Override
        public void removeOverlay(ViewGroup sceneRoot, Drawable drawable) {
            sceneRoot.getOverlay().remove(drawable);
        }
    }

    private static final ViewOverlayUtilsImpl IMPL;

    static {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
            IMPL = new JellyBeanMR2ViewUtilsImpl();
        } else {
            IMPL = new BaseViewOverlayUtilsImpl();
        }
    }

    public static void addOverlay(ViewGroup sceneRoot, Drawable drawable) {
        IMPL.addOverlay(sceneRoot, drawable);
    }

    public static void removeOverlay(ViewGroup sceneRoot, Drawable drawable) {
        IMPL.removeOverlay(sceneRoot, drawable);
    }
}

Java Source Code List