Java Code Examples for android.support.design.widget.Snackbar#SnackbarLayout

@Override
public void updateSnackbar(CoordinatorLayout parent, View dependency, View child) {
    if (!isTablet && dependency instanceof Snackbar.SnackbarLayout) {
        if (mSnackbarHeight == -1) {
            mSnackbarHeight = dependency.getHeight();
        }
        if (ViewCompat.getTranslationY(child) != 0) return;
        int targetPadding = bottomNavHeight + mSnackbarHeight - defaultOffset;

        ViewGroup.MarginLayoutParams layoutParams = (ViewGroup.MarginLayoutParams) dependency.getLayoutParams();
        layoutParams.bottomMargin = targetPadding;
        child.bringToFront();
        child.getParent().requestLayout();
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
            ((View) child.getParent()).invalidate();
        }

    }
}
 

@Override
public void onDependentViewRemoved(
        CoordinatorLayout parent,
        FloatingTextButton child,
        View dependency
) {
    if (dependency instanceof Snackbar.SnackbarLayout) {

        animation = ViewCompat.animate(child)
                .translationY(0f)
                .setInterpolator(HIDE_INTERPOLATOR)
                .setDuration(HIDE_DURATION);

        animation.start();
    }
    super.onDependentViewRemoved(parent, child, dependency);
}
 

private float getTranslationYForSnackbar(CoordinatorLayout parent, FooterLayout footerLayout) {

        float minOffset = 0;
        final List<View> dependencies = parent.getDependencies(footerLayout);
        for (int i = 0, z = dependencies.size(); i < z; i++) {
            final View view = dependencies.get(i);
            if (view instanceof Snackbar.SnackbarLayout && parent.doViewsOverlap(footerLayout, view)) {
                minOffset = Math.min(minOffset, ViewCompat.getTranslationY(view) - view.getHeight());
            }
        }

        return minOffset;
    }
 

public static Snackbar show(@NonNull View view, @NonNull CharSequence text, int duration,
                        @Nullable String actionText, @Nullable View.OnClickListener listener) {
    Snackbar snackbar = Snackbar.make(view, text, duration);
    Snackbar.SnackbarLayout root = (Snackbar.SnackbarLayout) snackbar.getView();
    root.setBackgroundColor(view.getContext().getResources().getColor(R.color.colorPrimaryDark));
    ((TextView) root.findViewById(R.id.snackbar_text)).setTextColor(Color.WHITE);
    if (actionText != null && listener != null)
        snackbar.setAction(actionText, listener).setActionTextColor(view.getResources().getColor(R.color.md_red_500));
    snackbar.show();
    return snackbar;
}
 

/**
 * Find the {@code translation Y} value for any child Snackbar components.
 *
 * @return 0.0F if there are no Snackbar components found, otherwise returns the min offset that
 * the FAB component should be animated.
 */
private float getFabTranslationYForSnackbar(CoordinatorLayout parent, View fab) {
    float minOffset = 0.0F;
    final List<View> dependencies = parent.getDependencies(fab);

    for (View view : dependencies) {
        if (view instanceof Snackbar.SnackbarLayout && parent.doViewsOverlap(fab, view)) {
            minOffset = Math.min(minOffset, view.getTranslationY() - (float) view.getHeight());
        }
    }

    return minOffset;
}
 

@Override
public void updateSnackbar(CoordinatorLayout parent, View dependency, View child) {
    if (dependency instanceof Snackbar.SnackbarLayout) {
        if (mSnackbarHeight == -1) {
            mSnackbarHeight = dependency.getHeight();
        }
        int targetPadding = (mSnackbarHeight +
                child.getMeasuredHeight());
        dependency.setPadding(dependency.getPaddingLeft(),
                dependency.getPaddingTop(), dependency.getPaddingRight(), targetPadding
        );
    }
}
 

@Override
public boolean onDependentViewChanged(CoordinatorLayout parent, FabSpeedDial child,
                                      View dependency) {
    if (dependency instanceof Snackbar.SnackbarLayout) {
        updateFabTranslationForSnackbar(parent, child, dependency);
    } else if (dependency instanceof AppBarLayout) {
        // If we're depending on an AppBarLayout we will show/hide it automatically
        // if the FAB is anchored to the AppBarLayout
        updateFabVisibility(parent, (AppBarLayout) dependency, child);
    }
    return false;
}
 

/**
 * 为snackbar添加布局
 * <p>在show...Snackbar之后调用</p>
 *
 * @param child  要添加的view
 * @param index  位置(the position at which to add the child or -1 to add last)
 * @param params 布局参数
 */
public static void addView(View child, int index, ViewGroup.LayoutParams params) {
    Snackbar snackbar = snackbarWeakReference.get();
    if (snackbar != null) {
        View view = snackbar.getView();
        Snackbar.SnackbarLayout layout = (Snackbar.SnackbarLayout) view;
        layout.addView(child, index, params);
    }
}
 

/**
 * 向Snackbar中添加view
 * @param snackbar
 * @param layoutId
 * @param index 新加布局在Snackbar中的位置
 */
public static void SnackbarAddView(Snackbar snackbar, int layoutId, int index) {
    View snackbarview = snackbar.getView();
    Snackbar.SnackbarLayout snackbarLayout=(Snackbar.SnackbarLayout)snackbarview;

    View add_view = LayoutInflater.from(snackbarview.getContext()).inflate(layoutId,null);

    LinearLayout.LayoutParams p = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
    p.gravity= Gravity.CENTER_VERTICAL;

    snackbarLayout.addView(add_view,index,p);
}
 

/**
 * Add view to the snackbar.
 * <p>Call it after {@link #show()}</p>
 *
 * @param layoutId The id of layout.
 * @param params   The params.
 */
public static void addView(@LayoutRes final int layoutId,
                           @NonNull final ViewGroup.LayoutParams params) {
    final View view = getView();
    if (view != null) {
        view.setPadding(0, 0, 0, 0);
        Snackbar.SnackbarLayout layout = (Snackbar.SnackbarLayout) view;
        View child = LayoutInflater.from(view.getContext()).inflate(layoutId, null);
        layout.addView(child, -1, params);
    }
}
 

private Snackbar.SnackbarLayout getSnackBarInstance(CoordinatorLayout parent, V child) {
    final List<View> dependencies = parent.getDependencies(child);
    for (int i = 0, z = dependencies.size(); i < z; i++) {
        final View view = dependencies.get(i);
        if (view instanceof Snackbar.SnackbarLayout) {
            return (Snackbar.SnackbarLayout) view;
        }
    }
    return null;
}
 

@Override public void addView(View child, int width, int height) {
  super.addView(child, width, height);
  if (getChildCount() != 1 && !(child instanceof Snackbar.SnackbarLayout)) addSkittleOnTop();
}
 

/**
 * Show the snackbar.
 *
 * @param isShowTop True to show the snack bar on the top, false otherwise.
 */
public Snackbar show(boolean isShowTop) {
    View view = this.view;
    if (view == null) return null;
    if (isShowTop) {
        ViewGroup suitableParent = findSuitableParentCopyFromSnackbar(view);
        View topSnackBarContainer = suitableParent.findViewWithTag("topSnackBarCoordinatorLayout");
        if (topSnackBarContainer == null) {
            CoordinatorLayout topSnackBarCoordinatorLayout = new CoordinatorLayout(view.getContext());
            topSnackBarCoordinatorLayout.setTag("topSnackBarCoordinatorLayout");
            topSnackBarCoordinatorLayout.setRotation(180);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                // bring to front
                topSnackBarCoordinatorLayout.setElevation(100);
            }
            suitableParent.addView(topSnackBarCoordinatorLayout, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
            topSnackBarContainer = topSnackBarCoordinatorLayout;
        }
        view = topSnackBarContainer;
    }
    if (messageColor != COLOR_DEFAULT) {
        SpannableString spannableString = new SpannableString(message);
        ForegroundColorSpan colorSpan = new ForegroundColorSpan(messageColor);
        spannableString.setSpan(
                colorSpan, 0, spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
        );
        sReference = new WeakReference<>(Snackbar.make(view, spannableString, duration));
    } else {
        sReference = new WeakReference<>(Snackbar.make(view, message, duration));
    }
    final Snackbar snackbar = sReference.get();
    final Snackbar.SnackbarLayout snackbarView = (Snackbar.SnackbarLayout) snackbar.getView();
    if (isShowTop) {
        for (int i = 0; i < snackbarView.getChildCount(); i++) {
            View child = snackbarView.getChildAt(i);
            child.setRotation(180);
        }
    }
    if (bgResource != -1) {
        snackbarView.setBackgroundResource(bgResource);
    } else if (bgColor != COLOR_DEFAULT) {
        snackbarView.setBackgroundColor(bgColor);
    }
    if (bottomMargin != 0) {
        ViewGroup.MarginLayoutParams params =
                (ViewGroup.MarginLayoutParams) snackbarView.getLayoutParams();
        params.bottomMargin = bottomMargin;
    }
    if (actionText.length() > 0 && actionListener != null) {
        if (actionTextColor != COLOR_DEFAULT) {
            snackbar.setActionTextColor(actionTextColor);
        }
        snackbar.setAction(actionText, actionListener);
    }
    snackbar.show();
    return snackbar;
}
 

@Override
public boolean layoutDependsOn(CoordinatorLayout parent, V child, View dependency) {
    mWithSnackBarImpl.updateSnackbar(parent, dependency, child);
    return dependency instanceof Snackbar.SnackbarLayout;
}
 

@Override
public boolean layoutDependsOn(CoordinatorLayout parent, FabSpeedDial child, View dependency) {
    // We're dependent on all SnackbarLayouts (if enabled)
    return SNACKBAR_BEHAVIOR_ENABLED && dependency instanceof Snackbar.SnackbarLayout;
}
 

private void updateScrollingForSnackbar(View dependency, boolean enabled) {
    if (!isTablet && dependency instanceof Snackbar.SnackbarLayout) {
        mScrollingEnabled = enabled;
    }
}
 

@Override
public boolean layoutDependsOn(CoordinatorLayout parent, FabSpeedDial child, View dependency) {
    // We're dependent on all SnackbarLayouts (if enabled)
    return SNACKBAR_BEHAVIOR_ENABLED && dependency instanceof Snackbar.SnackbarLayout;
}
 

@Override
public boolean layoutDependsOn(CoordinatorLayout parent, FloatingActionButton child, View dependency) {
    return dependency instanceof Snackbar.SnackbarLayout;
}
 

@Override
public boolean layoutDependsOn(CoordinatorLayout parent, FloatingActionMenu child, View dependency) {
    // We're dependent on all SnackbarLayouts (if enabled)
    return SNACKBAR_BEHAVIOR_ENABLED && dependency instanceof Snackbar.SnackbarLayout;
}
 

@Override public void addView(View child, int index) {
  super.addView(child, index);
  if (getChildCount() != 1 && !(child instanceof Snackbar.SnackbarLayout)) addSkittleOnTop();
}