Examples with CategoryView com.android.gallery3d.filtershow.category.CategoryView used on opensource projects

Example 1 with CategoryView

use of com.android.gallery3d.filtershow.category.CategoryView in project android_packages_apps_Gallery2 by LineageOS.

the class FilterShowActivity method dispatchTouchEvent.

public boolean dispatchTouchEvent(MotionEvent ev) {
    if (mHandlingSwipeButton) {
        int direction = CategoryView.HORIZONTAL;
        if (mHandledSwipeView instanceof CategoryView) {
            direction = ((CategoryView) mHandledSwipeView).getOrientation();
        }
        if (ev.getActionMasked() == MotionEvent.ACTION_MOVE) {
            float delta = ev.getY() - mSwipeStartY;
            float distance = mHandledSwipeView.getHeight();
            if (direction == CategoryView.VERTICAL) {
                delta = ev.getX() - mSwipeStartX;
                mHandledSwipeView.setTranslationX(delta);
                distance = mHandledSwipeView.getWidth();
            } else {
                mHandledSwipeView.setTranslationY(delta);
            }
            delta = Math.abs(delta);
            float transparency = Math.min(1, delta / distance);
            mHandledSwipeView.setAlpha(1.f - transparency);
            mHandledSwipeViewLastDelta = delta;
        }
        if (ev.getActionMasked() == MotionEvent.ACTION_CANCEL || ev.getActionMasked() == MotionEvent.ACTION_UP) {
            mHandledSwipeView.setTranslationX(0);
            mHandledSwipeView.setTranslationY(0);
            mHandledSwipeView.setAlpha(1.f);
            mHandlingSwipeButton = false;
            float distance = mHandledSwipeView.getHeight();
            if (direction == CategoryView.VERTICAL) {
                distance = mHandledSwipeView.getWidth();
            }
            if (mHandledSwipeViewLastDelta > distance) {
                ((SwipableView) mHandledSwipeView).delete();
            }
        }
        return true;
    }
    return super.dispatchTouchEvent(ev);
}