Java Code Examples for com.google.android.material.floatingactionbutton.FloatingActionButton#setTag()

@SuppressLint("ClickableViewAccessibility")
private void initFloatingActionMenu() {
    for (int i = 0; i <= getChildCount() - 2; i++) {
        ViewGroup childGroup = (ViewGroup) getChildAt(i);
        final int index = Integer.parseInt(String.valueOf(childGroup.getTag()));
        childGroup.setVisibility(INVISIBLE);
        View labelView = childGroup.getChildAt(0);
        labelView.setVisibility(INVISIBLE);
        FloatingActionButton btnView = (FloatingActionButton) childGroup.getChildAt(1);
        btnView.setTag(btnView.getDrawable());
        if (mLastIndex == index) {
            btnView.setImageResource(R.drawable.ic_check_black_24dp);
        }
        labelView.setOnClickListener(v -> btnView.callOnClick());
        btnView.setOnClickListener(v -> {
            setSelection(index);
            collapse();
            if (mMenuClickListener != null) {
                mMenuClickListener.onMenuClick(index, v);
            }
        });
        btnView.post(btnView::hide);
    }
}
 

public static void toggleFab(FloatingActionButton fab, boolean visible) {
    if (visible) {
        fab.setTag(null);
        fab.show();
    } else {
        fab.setTag(FabAwareScrollBehavior.HIDDEN);
        fab.hide();
    }
}
 

private static void hide(FloatingActionButton fab) {
    fab.setTag(false);
    fab.animate().scaleX(0).scaleY(0).setDuration(DURATION).start();
    fab.setClickable(false);
}
 

private static void show(FloatingActionButton fab) {
    fab.setTag(true);
    fab.animate().scaleX(1).scaleY(1).setDuration(DURATION).start();
    fab.setClickable(true);
}
 

@Override
public void onNestedScroll(@NonNull CoordinatorLayout coordinatorLayout, @NonNull FloatingActionButton child, @NonNull View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed, int type, @NonNull int[] consumed) {
    if (child.getTag() == null) child.setTag(true);
    if (dyConsumed > 0 && ((boolean) child.getTag())) hide(child);
    else if (dyConsumed < 0 && (!(boolean) child.getTag())) show(child);
}
 

private FloatingActionButton buildChild(@DrawableRes int icon,
                                        final OnClickListener onClickListener, String label) {
    FloatingActionButton button = LayoutInflater.from(getContext())
            .inflate(R.layout.mini_fab, (ViewGroup) getParent(), true)
            .findViewWithTag("fab-null");

    button.setTag("fab-" + label);
    button.setImageResource(icon);
    button.setVisibility(GONE);
    button.setOnClickListener(v -> {
        onClickListener.onClick(v);
        hideChildren();
    });

    if (getParent() instanceof CoordinatorLayout) {
        final float padding = getResources().getDimension(R.dimen.fab_margin);
        final float dpScale = getResources().getDisplayMetrics().density;

        CoordinatorLayout.LayoutParams params =
                (CoordinatorLayout.LayoutParams) button.getLayoutParams();
        if (ViewUtils.isRtl(getContext())) {
            params.leftMargin += padding;
        } else {
            params.rightMargin += padding;
        }
        params.bottomMargin = (int) (SIZE_L_DP * dpScale + padding * (2 + children.size())
                + SIZE_S_DP * dpScale * children.size());

        // For some reason, the children are 12dp higher and 18dp further to the left on pre-L
        // devices than on L+ devices. I don't know for sure what causes this (I suspect it's
        // the drop shadow or elevation compatibility code), but this takes care of it.
        //
        // There's probably a better way to fix this, but this was the easiest. If for some
        // reason this changes in an update to one of the support libraries, just remeasure
        // these offsets and update them here.
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
            if (ViewUtils.isRtl(getContext())) {
                params.leftMargin -= 12 * dpScale;
            } else {
                params.rightMargin -= 12 * dpScale;
            }
            params.bottomMargin -= 18 * dpScale;
        }

        button.setLayoutParams(params);
    } else {
        Timber.e("Parent must be a CoordinatorLayout to properly set margin");
    }

    // When children aren't visible on screen, remove them from the view hierarchy completely
    // If we don't do this, then the FloatingActionButton Behaviors conflict for some reason
    // and Snackbars won't slide the FAB up which is kind of an important detail.
    //
    // FABMenu.Behavior takes care of some of the left over discrepancies like overlapping FAB's
    //
    // Additionally, the screen is functionally important because it prevents the user
    // from doing something that could generate a Snackbar when the FAB's are visible
    // which can cause the main FAB to be overlapped.
    ((ViewGroup) button.getParent()).removeView(button);
    return button;
}