fab: use support library's rendering

Signed-off-by: Eric Kuck <eric@bluelinelabs.com>

app/src/main/java/com/wireguard/android/fragment/TunnelListFragment.java

@@ -35,7 +35,6 @@ import com.wireguard.android.databinding.TunnelListFragmentBinding;
 import com.wireguard.android.databinding.TunnelListItemBinding;
 import com.wireguard.android.model.Tunnel;
 import com.wireguard.android.util.ExceptionLoggers;
-import com.wireguard.android.widget.ToggleSwitch;
 import com.wireguard.config.Config;
 
 import java.io.BufferedReader;

app/src/main/java/com/wireguard/android/widget/fab/AddFloatingActionButton.java

@@ -1,97 +0,0 @@
-/*
- * Copyright © 2014 Jerzy Chalupski
- * Copyright © 2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
- * SPDX-License-Identifier: Apache-2.0
- */
-
-package com.wireguard.android.widget.fab;
-
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.graphics.Canvas;
-import android.graphics.Paint;
-import android.graphics.Paint.Style;
-import android.graphics.drawable.Drawable;
-import android.graphics.drawable.ShapeDrawable;
-import android.graphics.drawable.shapes.Shape;
-import android.support.annotation.ColorRes;
-import android.support.annotation.DrawableRes;
-import android.support.v4.content.ContextCompat;
-import android.util.AttributeSet;
-
-import com.wireguard.android.R;
-
-public class AddFloatingActionButton extends FloatingActionButton {
-    int mPlusColor;
-
-    public AddFloatingActionButton(final Context context) {
-        this(context, null);
-    }
-
-    public AddFloatingActionButton(final Context context, final AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-    public AddFloatingActionButton(final Context context, final AttributeSet attrs, final int defStyle) {
-        super(context, attrs, defStyle);
-    }
-
-    @Override
-    void init(final Context context, final AttributeSet attributeSet) {
-        final TypedArray attr = context.obtainStyledAttributes(attributeSet, R.styleable.AddFloatingActionButton, 0, 0);
-        mPlusColor = attr.getColor(R.styleable.AddFloatingActionButton_fab_plusIconColor, FloatingActionButton.getColorFromTheme(context, android.R.attr.colorBackground, android.R.color.white));
-        attr.recycle();
-
-        super.init(context, attributeSet);
-    }
-
-    /**
-     * @return the current Color of plus icon.
-     */
-    public int getPlusColor() {
-        return mPlusColor;
-    }
-
-    public void setPlusColor(final int color) {
-        if (mPlusColor != color) {
-            mPlusColor = color;
-            updateBackground();
-        }
-    }
-
-    public void setPlusColorResId(@ColorRes final int plusColor) {
-        setPlusColor(ContextCompat.getColor(getContext(), plusColor));
-    }
-
-    @Override
-    public void setIcon(@DrawableRes final int icon) {
-        throw new UnsupportedOperationException("Use FloatingActionButton if you want to use custom icon");
-    }
-
-    @Override
-    Drawable getIconDrawable() {
-        final float iconSize = getDimension(R.dimen.fab_icon_size);
-        final float iconHalfSize = iconSize / 2f;
-
-        final float plusSize = getDimension(R.dimen.fab_plus_icon_size);
-        final float plusHalfStroke = getDimension(R.dimen.fab_plus_icon_stroke) / 2f;
-        final float plusOffset = (iconSize - plusSize) / 2f;
-
-        final Shape shape = new Shape() {
-            @Override
-            public void draw(final Canvas canvas, final Paint paint) {
-                canvas.drawRect(plusOffset, iconHalfSize - plusHalfStroke, iconSize - plusOffset, iconHalfSize + plusHalfStroke, paint);
-                canvas.drawRect(iconHalfSize - plusHalfStroke, plusOffset, iconHalfSize + plusHalfStroke, iconSize - plusOffset, paint);
-            }
-        };
-
-        final ShapeDrawable drawable = new ShapeDrawable(shape);
-
-        final Paint paint = drawable.getPaint();
-        paint.setColor(mPlusColor);
-        paint.setStyle(Style.FILL);
-        paint.setAntiAlias(true);
-
-        return drawable;
-    }
-}

app/src/main/java/com/wireguard/android/widget/fab/FloatingActionButton.java

@@ -1,446 +0,0 @@
-/*
- * Copyright © 2014 Jerzy Chalupski
- * Copyright © 2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
- * SPDX-License-Identifier: Apache-2.0
- */
-
-package com.wireguard.android.widget.fab;
-
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.graphics.Canvas;
-import android.graphics.Color;
-import android.graphics.LinearGradient;
-import android.graphics.Paint;
-import android.graphics.Paint.Style;
-import android.graphics.Rect;
-import android.graphics.Shader;
-import android.graphics.Shader.TileMode;
-import android.graphics.drawable.ColorDrawable;
-import android.graphics.drawable.Drawable;
-import android.graphics.drawable.LayerDrawable;
-import android.graphics.drawable.ShapeDrawable;
-import android.graphics.drawable.ShapeDrawable.ShaderFactory;
-import android.graphics.drawable.StateListDrawable;
-import android.graphics.drawable.shapes.OvalShape;
-import android.support.annotation.ColorRes;
-import android.support.annotation.DimenRes;
-import android.support.annotation.DrawableRes;
-import android.support.annotation.IntDef;
-import android.support.annotation.NonNull;
-import android.support.v4.content.ContextCompat;
-import android.support.v7.widget.AppCompatImageButton;
-import android.util.AttributeSet;
-import android.widget.TextView;
-
-import com.wireguard.android.R;
-
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-
-public class FloatingActionButton extends AppCompatImageButton {
-
-    public static final int SIZE_NORMAL = 0;
-    public static final int SIZE_MINI = 1;
-    int mColorNormal;
-    int mColorPressed;
-    int mColorDisabled;
-    String mTitle;
-    boolean mStrokeVisible;
-    @DrawableRes
-    private int mIcon;
-    private Drawable mIconDrawable;
-    private int mSize;
-
-    private float mCircleSize;
-    private float mShadowRadius;
-    private float mShadowOffset;
-    private int mDrawableSize;
-    public FloatingActionButton(final Context context) {
-        this(context, null);
-    }
-
-    public FloatingActionButton(final Context context, final AttributeSet attrs) {
-        super(context, attrs);
-        init(context, attrs);
-    }
-
-    public FloatingActionButton(final Context context, final AttributeSet attrs, final int defStyle) {
-        super(context, attrs, defStyle);
-        init(context, attrs);
-    }
-
-    public static int getColorFromTheme(final Context context, final int themeResource, @ColorRes final int fallback) {
-        final TypedArray a = context.obtainStyledAttributes(new int[]{themeResource});
-        try {
-            return a.getColor(0, ContextCompat.getColor(context, fallback));
-        } finally {
-            a.recycle();
-        }
-    }
-
-    void init(final Context context, final AttributeSet attributeSet) {
-        final TypedArray attr = context.obtainStyledAttributes(attributeSet,
-                R.styleable.FloatingActionButton, 0, 0);
-        mColorNormal = attr.getColor(R.styleable.FloatingActionButton_fab_colorNormal,
-                getColorFromTheme(context, android.R.attr.colorAccent, android.R.color.holo_blue_bright));
-        mColorPressed = attr.getColor(R.styleable.FloatingActionButton_fab_colorPressed,
-                darkenOrLightenColor(mColorNormal)); //TODO(msf): use getColorForState on the accent color from theme instead to get darker states
-        mColorDisabled = attr.getColor(R.styleable.FloatingActionButton_fab_colorDisabled,
-                ContextCompat.getColor(context, android.R.color.darker_gray)); //TODO(msf): load from theme
-        mSize = attr.getInt(R.styleable.FloatingActionButton_fab_size, SIZE_NORMAL);
-        mIcon = attr.getResourceId(R.styleable.FloatingActionButton_fab_icon, 0);
-        mTitle = attr.getString(R.styleable.FloatingActionButton_fab_title);
-        mStrokeVisible = attr.getBoolean(R.styleable.FloatingActionButton_fab_stroke_visible, true);
-        attr.recycle();
-
-        updateCircleSize();
-        mShadowRadius = getDimension(R.dimen.fab_shadow_radius);
-        mShadowOffset = getDimension(R.dimen.fab_shadow_offset);
-        updateDrawableSize();
-
-        updateBackground();
-    }
-
-    private void updateDrawableSize() {
-        mDrawableSize = (int) (mCircleSize + 2 * mShadowRadius);
-    }
-
-    private void updateCircleSize() {
-        mCircleSize = getDimension(mSize == SIZE_NORMAL ? R.dimen.fab_size_normal : R.dimen.fab_size_mini);
-    }
-
-    @FAB_SIZE
-    public int getSize() {
-        return mSize;
-    }
-
-    public void setSize(@FAB_SIZE final int size) {
-        if (size != SIZE_MINI && size != SIZE_NORMAL) {
-            throw new IllegalArgumentException("Use @FAB_SIZE constants only!");
-        }
-
-        if (mSize != size) {
-            mSize = size;
-            updateCircleSize();
-            updateDrawableSize();
-            updateBackground();
-        }
-    }
-
-    public void setIcon(@DrawableRes final int icon) {
-        if (mIcon != icon) {
-            mIcon = icon;
-            mIconDrawable = null;
-            updateBackground();
-        }
-    }
-
-    /**
-     * @return the current Color for normal state.
-     */
-    public int getColorNormal() {
-        return mColorNormal;
-    }
-
-    public void setColorNormal(final int color) {
-        if (mColorNormal != color) {
-            mColorNormal = color;
-            updateBackground();
-        }
-    }
-
-    public void setColorNormalResId(@ColorRes final int colorNormal) {
-        setColorNormal(ContextCompat.getColor(getContext(), colorNormal));
-    }
-
-    /**
-     * @return the current color for pressed state.
-     */
-    public int getColorPressed() {
-        return mColorPressed;
-    }
-
-    public void setColorPressed(final int color) {
-        if (mColorPressed != color) {
-            mColorPressed = color;
-            updateBackground();
-        }
-    }
-
-    public void setColorPressedResId(@ColorRes final int colorPressed) {
-        setColorPressed(ContextCompat.getColor(getContext(), colorPressed));
-    }
-
-    /**
-     * @return the current color for disabled state.
-     */
-    public int getColorDisabled() {
-        return mColorDisabled;
-    }
-
-    public void setColorDisabled(final int color) {
-        if (mColorDisabled != color) {
-            mColorDisabled = color;
-            updateBackground();
-        }
-    }
-
-    public void setColorDisabledResId(@ColorRes final int colorDisabled) {
-        setColorDisabled(ContextCompat.getColor(getContext(), colorDisabled));
-    }
-
-    public boolean isStrokeVisible() {
-        return mStrokeVisible;
-    }
-
-    public void setStrokeVisible(final boolean visible) {
-        if (mStrokeVisible != visible) {
-            mStrokeVisible = visible;
-            updateBackground();
-        }
-    }
-
-    float getDimension(@DimenRes final int id) {
-        return getResources().getDimension(id);
-    }
-
-    TextView getLabelView() {
-        return (TextView) getTag(R.id.fab_label);
-    }
-
-    public String getTitle() {
-        return mTitle;
-    }
-
-    public void setTitle(final String title) {
-        mTitle = title;
-        final TextView label = getLabelView();
-        if (label != null) {
-            label.setText(title);
-        }
-    }
-
-    @Override
-    protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
-        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
-        setMeasuredDimension(mDrawableSize, mDrawableSize);
-    }
-
-    void updateBackground() {
-        final float strokeWidth = getDimension(R.dimen.fab_stroke_width);
-        final float halfStrokeWidth = strokeWidth / 2f;
-
-        final LayerDrawable layerDrawable = new LayerDrawable(
-                new Drawable[]{
-                        //TODO(msf); replace these pngs with programatic elevation
-                        getResources().getDrawable(mSize == SIZE_NORMAL ? R.drawable.fab_bg_normal : R.drawable.fab_bg_mini, null),
-                        createFillDrawable(strokeWidth),
-                        createOuterStrokeDrawable(strokeWidth),
-                        getIconDrawable()
-                });
-
-        final int iconOffset = (int) (mCircleSize - getDimension(R.dimen.fab_icon_size)) / 2;
-
-        final int circleInsetHorizontal = (int) (mShadowRadius);
-        final int circleInsetTop = (int) (mShadowRadius - mShadowOffset);
-        final int circleInsetBottom = (int) (mShadowRadius + mShadowOffset);
-
-        layerDrawable.setLayerInset(1,
-                circleInsetHorizontal,
-                circleInsetTop,
-                circleInsetHorizontal,
-                circleInsetBottom);
-
-        layerDrawable.setLayerInset(2,
-                (int) (circleInsetHorizontal - halfStrokeWidth),
-                (int) (circleInsetTop - halfStrokeWidth),
-                (int) (circleInsetHorizontal - halfStrokeWidth),
-                (int) (circleInsetBottom - halfStrokeWidth));
-
-        layerDrawable.setLayerInset(3,
-                circleInsetHorizontal + iconOffset,
-                circleInsetTop + iconOffset,
-                circleInsetHorizontal + iconOffset,
-                circleInsetBottom + iconOffset);
-
-        setBackground(layerDrawable);
-    }
-
-    Drawable getIconDrawable() {
-        if (mIconDrawable != null) {
-            return mIconDrawable;
-        } else if (mIcon != 0) {
-            return ContextCompat.getDrawable(getContext(), mIcon);
-        } else {
-            return new ColorDrawable(Color.TRANSPARENT);
-        }
-    }
-
-    public void setIconDrawable(@NonNull final Drawable iconDrawable) {
-        if (mIconDrawable != iconDrawable) {
-            mIcon = 0;
-            mIconDrawable = iconDrawable;
-            updateBackground();
-        }
-    }
-
-    private StateListDrawable createFillDrawable(final float strokeWidth) {
-        final StateListDrawable drawable = new StateListDrawable();
-        drawable.addState(new int[]{-android.R.attr.state_enabled}, createCircleDrawable(mColorDisabled, strokeWidth));
-        drawable.addState(new int[]{android.R.attr.state_pressed}, createCircleDrawable(mColorPressed, strokeWidth));
-        drawable.addState(new int[]{}, createCircleDrawable(mColorNormal, strokeWidth));
-        return drawable;
-    }
-
-    private Drawable createCircleDrawable(final int color, final float strokeWidth) {
-        final int alpha = Color.alpha(color);
-        final int opaqueColor = opaque(color);
-
-        final ShapeDrawable fillDrawable = new ShapeDrawable(new OvalShape());
-
-        final Paint paint = fillDrawable.getPaint();
-        paint.setAntiAlias(true);
-        paint.setColor(opaqueColor);
-
-        final Drawable[] layers = {
-                fillDrawable,
-                createInnerStrokesDrawable(opaqueColor, strokeWidth)
-        };
-
-        final LayerDrawable drawable = alpha == 255 || !mStrokeVisible
-                ? new LayerDrawable(layers)
-                : new TranslucentLayerDrawable(alpha, layers);
-
-        final int halfStrokeWidth = (int) (strokeWidth / 2f);
-        drawable.setLayerInset(1, halfStrokeWidth, halfStrokeWidth, halfStrokeWidth, halfStrokeWidth);
-
-        return drawable;
-    }
-
-    private static Drawable createOuterStrokeDrawable(final float strokeWidth) {
-        final ShapeDrawable shapeDrawable = new ShapeDrawable(new OvalShape());
-
-        final Paint paint = shapeDrawable.getPaint();
-        paint.setAntiAlias(true);
-        paint.setStrokeWidth(strokeWidth);
-        paint.setStyle(Style.STROKE);
-        paint.setColor(Color.BLACK);
-        paint.setAlpha(opacityToAlpha(0.02f));
-
-        return shapeDrawable;
-    }
-
-    private static int opacityToAlpha(final float opacity) {
-        return (int) (255f * opacity);
-    }
-
-    private static int darkenColor(final int argb) {
-        return adjustColorBrightness(argb, 0.9f);
-    }
-
-    private static int lightenColor(final int argb) {
-        return adjustColorBrightness(argb, 1.1f);
-    }
-
-    public static int darkenOrLightenColor(final int argb) {
-        final float[] hsv = new float[3];
-        Color.colorToHSV(argb, hsv);
-        final float factor;
-        if (hsv[2] < 0.2)
-            factor = 1.2f;
-        else
-            factor = 0.8f;
-
-        hsv[2] = Math.min(hsv[2] * factor, 1f);
-        return Color.HSVToColor(Color.alpha(argb), hsv);
-    }
-
-    private static int adjustColorBrightness(final int argb, final float factor) {
-        final float[] hsv = new float[3];
-        Color.colorToHSV(argb, hsv);
-
-        hsv[2] = Math.min(hsv[2] * factor, 1f);
-
-        return Color.HSVToColor(Color.alpha(argb), hsv);
-    }
-
-    private static int halfTransparent(final int argb) {
-        return Color.argb(
-                Color.alpha(argb) / 2,
-                Color.red(argb),
-                Color.green(argb),
-                Color.blue(argb)
-        );
-    }
-
-    private static int opaque(final int argb) {
-        return Color.rgb(
-                Color.red(argb),
-                Color.green(argb),
-                Color.blue(argb)
-        );
-    }
-
-    private Drawable createInnerStrokesDrawable(final int color, final float strokeWidth) {
-        if (!mStrokeVisible) {
-            return new ColorDrawable(Color.TRANSPARENT);
-        }
-
-        final ShapeDrawable shapeDrawable = new ShapeDrawable(new OvalShape());
-
-        final int bottomStrokeColor = darkenColor(color);
-        final int bottomStrokeColorHalfTransparent = halfTransparent(bottomStrokeColor);
-        final int topStrokeColor = lightenColor(color);
-        final int topStrokeColorHalfTransparent = halfTransparent(topStrokeColor);
-
-        final Paint paint = shapeDrawable.getPaint();
-        paint.setAntiAlias(true);
-        paint.setStrokeWidth(strokeWidth);
-        paint.setStyle(Style.STROKE);
-        shapeDrawable.setShaderFactory(new ShaderFactory() {
-            @Override
-            public Shader resize(int width, int height) {
-                return new LinearGradient(width / 2, 0, width / 2, height,
-                        new int[]{topStrokeColor, topStrokeColorHalfTransparent, color, bottomStrokeColorHalfTransparent, bottomStrokeColor},
-                        new float[]{0f, 0.2f, 0.5f, 0.8f, 1f},
-                        TileMode.CLAMP
-                );
-            }
-        });
-
-        return shapeDrawable;
-    }
-
-    @Override
-    public void setVisibility(final int visibility) {
-        final TextView label = getLabelView();
-        if (label != null) {
-            label.setVisibility(visibility);
-        }
-
-        super.setVisibility(visibility);
-    }
-
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef({SIZE_NORMAL, SIZE_MINI})
-    public @interface FAB_SIZE {
-    }
-
-    private static final class TranslucentLayerDrawable extends LayerDrawable {
-        private final int mAlpha;
-
-        private TranslucentLayerDrawable(final int alpha, final Drawable... layers) {
-            super(layers);
-            mAlpha = alpha;
-        }
-
-        @Override
-        public void draw(final Canvas canvas) {
-            final Rect bounds = getBounds();
-            canvas.saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, mAlpha);
-            super.draw(canvas);
-            canvas.restore();
-        }
-    }
-}

app/src/main/java/com/wireguard/android/widget/fab/FloatingActionsMenu.java

@@ -22,6 +22,8 @@ import android.os.Parcel;
 import android.os.Parcelable;
 import android.support.annotation.Keep;
 import android.support.annotation.NonNull;
+import android.support.design.widget.FloatingActionButton;
+import android.support.v4.content.res.ResourcesCompat;
 import android.support.v7.widget.AppCompatTextView;
 import android.util.AttributeSet;
 import android.view.ContextThemeWrapper;
@@ -50,11 +52,6 @@ public class FloatingActionsMenu extends ViewGroup {
     private static final TimeInterpolator EXPAND_INTERPOLATOR = new OvershootInterpolator();
     private static final TimeInterpolator COLLAPSE_INTERPOLATOR = new DecelerateInterpolator(3f);
     private static final TimeInterpolator ALPHA_EXPAND_INTERPOLATOR = new DecelerateInterpolator();
-    private int mAddButtonPlusColor;
-    private int mAddButtonColorNormal;
-    private int mAddButtonColorPressed;
-    private int mAddButtonSize;
-    private boolean mAddButtonStrokeVisible;
     private int mExpandDirection;
     private int mButtonSpacing;
     private int mLabelsMargin;
@@ -62,7 +59,7 @@ public class FloatingActionsMenu extends ViewGroup {
     private boolean mExpanded;
     private final AnimatorSet mExpandAnimation = new AnimatorSet().setDuration(ANIMATION_DURATION);
     private final AnimatorSet mCollapseAnimation = new AnimatorSet().setDuration(ANIMATION_DURATION);
-    private AddFloatingActionButton mAddButton;
+    private FloatingActionButton mAddButton;
     private RotatingDrawable mRotatingDrawable;
     private int mMaxButtonWidth;
     private int mMaxButtonHeight;
@@ -88,7 +85,7 @@ public class FloatingActionsMenu extends ViewGroup {
     }
 
     private void init(final Context context, final AttributeSet attributeSet) {
-        mButtonSpacing = (int) (getResources().getDimension(R.dimen.fab_actions_spacing) - getResources().getDimension(R.dimen.fab_shadow_radius) - getResources().getDimension(R.dimen.fab_shadow_offset));
+        mButtonSpacing = (int) (getResources().getDimension(R.dimen.fab_actions_spacing));
         mLabelsMargin = getResources().getDimensionPixelSize(R.dimen.fab_labels_margin);
         mLabelsVerticalOffset = getResources().getDimensionPixelSize(R.dimen.fab_shadow_offset);
 
@@ -96,14 +93,6 @@ public class FloatingActionsMenu extends ViewGroup {
         setTouchDelegate(mTouchDelegateGroup);
 
         final TypedArray attr = context.obtainStyledAttributes(attributeSet, R.styleable.FloatingActionsMenu, 0, 0);
-        mAddButtonPlusColor = attr.getColor(R.styleable.FloatingActionsMenu_fab_addButtonPlusIconColor,
-                FloatingActionButton.getColorFromTheme(context, android.R.attr.colorBackground, android.R.color.white));
-        mAddButtonColorNormal = attr.getColor(R.styleable.FloatingActionsMenu_fab_addButtonColorNormal,
-                FloatingActionButton.getColorFromTheme(context, android.R.attr.colorAccent, android.R.color.holo_blue_bright));
-        mAddButtonColorPressed = attr.getColor(R.styleable.FloatingActionsMenu_fab_addButtonColorPressed,
-                FloatingActionButton.darkenOrLightenColor(mAddButtonColorNormal)); //TODO(msf): use getColorForState on the accent color from theme instead to get darker states
-        mAddButtonSize = attr.getInt(R.styleable.FloatingActionsMenu_fab_addButtonSize, FloatingActionButton.SIZE_NORMAL);
-        mAddButtonStrokeVisible = attr.getBoolean(R.styleable.FloatingActionsMenu_fab_addButtonStrokeVisible, true);
         mExpandDirection = attr.getInt(R.styleable.FloatingActionsMenu_fab_expandDirection, EXPAND_UP);
         mLabelsStyle = attr.getResourceId(R.styleable.FloatingActionsMenu_fab_labelStyle, 0);
         mLabelsPosition = attr.getInt(R.styleable.FloatingActionsMenu_fab_labelsPosition, LABELS_ON_LEFT_SIDE);
@@ -125,45 +114,30 @@ public class FloatingActionsMenu extends ViewGroup {
     }
 
     private void createAddButton(final Context context) {
-        mAddButton = new AddFloatingActionButton(context) {
-            @Override
-            void updateBackground() {
-                mPlusColor = mAddButtonPlusColor;
-                mColorNormal = mAddButtonColorNormal;
-                mColorPressed = mAddButtonColorPressed;
-                mStrokeVisible = mAddButtonStrokeVisible;
-                super.updateBackground();
-            }
-
-            @Override
-            Drawable getIconDrawable() {
-                final RotatingDrawable rotatingDrawable = new RotatingDrawable(super.getIconDrawable());
-                mRotatingDrawable = rotatingDrawable;
+        final RotatingDrawable rotatingDrawable = new RotatingDrawable(ResourcesCompat.getDrawable(context.getResources(), R.drawable.ic_action_add_inverse, context.getTheme()));
+        mRotatingDrawable = rotatingDrawable;
 
-                final TimeInterpolator interpolator = new OvershootInterpolator();
+        final TimeInterpolator interpolator = new OvershootInterpolator();
 
-                final ObjectAnimator collapseAnimator = ObjectAnimator.ofFloat(rotatingDrawable, "rotation", EXPANDED_PLUS_ROTATION, COLLAPSED_PLUS_ROTATION);
-                final ObjectAnimator expandAnimator = ObjectAnimator.ofFloat(rotatingDrawable, "rotation", COLLAPSED_PLUS_ROTATION, EXPANDED_PLUS_ROTATION);
+        final ObjectAnimator collapseAnimator = ObjectAnimator.ofFloat(rotatingDrawable, "rotation", EXPANDED_PLUS_ROTATION, COLLAPSED_PLUS_ROTATION);
+        final ObjectAnimator expandAnimator = ObjectAnimator.ofFloat(rotatingDrawable, "rotation", COLLAPSED_PLUS_ROTATION, EXPANDED_PLUS_ROTATION);
 
-                collapseAnimator.setInterpolator(interpolator);
-                expandAnimator.setInterpolator(interpolator);
+        collapseAnimator.setInterpolator(interpolator);
+        expandAnimator.setInterpolator(interpolator);
 
-                mExpandAnimation.play(expandAnimator);
-                mCollapseAnimation.play(collapseAnimator);
-
-                return rotatingDrawable;
-            }
-        };
+        mExpandAnimation.play(expandAnimator);
+        mCollapseAnimation.play(collapseAnimator);
 
+        mAddButton = new FloatingActionButton(context);
+        mAddButton.setImageDrawable(rotatingDrawable);
         mAddButton.setId(R.id.fab_expand_menu_button);
-        mAddButton.setSize(mAddButtonSize);
         mAddButton.setOnClickListener(v -> toggle());
 
         addView(mAddButton, super.generateDefaultLayoutParams());
         mButtonsCount++;
     }
 
-    public void addButton(final FloatingActionButton button) {
+    public void addButton(final LabeledFloatingActionButton button) {
         addView(button, mButtonsCount - 1);
         mButtonsCount++;
 
@@ -172,7 +146,7 @@ public class FloatingActionsMenu extends ViewGroup {
         }
     }
 
-    public void removeButton(final FloatingActionButton button) {
+    public void removeButton(final LabeledFloatingActionButton button) {
         removeView(button.getLabelView());
         removeView(button);
         button.setTag(R.id.fab_label, null);
@@ -257,9 +231,9 @@ public class FloatingActionsMenu extends ViewGroup {
 
                 final int addButtonY = expandUp ? b - t - mAddButton.getMeasuredHeight() : 0;
                 // Ensure mAddButton is centered on the line where the buttons should be
-                final int buttonsHorizontalCenter = mLabelsPosition == LABELS_ON_LEFT_SIDE
+                final int buttonsHorizontalCenter = (mLabelsPosition == LABELS_ON_LEFT_SIDE
                         ? r - l - mMaxButtonWidth / 2
-                        : mMaxButtonWidth / 2;
+                        : mMaxButtonWidth / 2);
                 final int addButtonLeft = buttonsHorizontalCenter - mAddButton.getMeasuredWidth() / 2;
                 mAddButton.layout(addButtonLeft, addButtonY, addButtonLeft + mAddButton.getMeasuredWidth(), addButtonY + mAddButton.getMeasuredHeight());
 
@@ -314,7 +288,7 @@ public class FloatingActionsMenu extends ViewGroup {
                                 childY - mButtonSpacing / 2,
                                 Math.max(childX + child.getMeasuredWidth(), labelRight),
                                 childY + child.getMeasuredHeight() + mButtonSpacing / 2);
-                        mTouchDelegateGroup.addTouchDelegate(new TouchDelegate(touchArea, child));
+                        mTouchDelegateGroup.addTouchDelegate(new TouchDelegate(new Rect(touchArea), child));
 
                         label.setTranslationY(mExpanded ? expandedTranslation : collapsedTranslation);
                         label.setAlpha(mExpanded ? 1f : 0f);
@@ -407,17 +381,17 @@ public class FloatingActionsMenu extends ViewGroup {
 
         for (int i = 0; i < mButtonsCount; i++) {
             final FloatingActionButton button = (FloatingActionButton) getChildAt(i);
-            final String title = button.getTitle();
 
-            if (button == mAddButton || title == null ||
-                    button.getTag(R.id.fab_label) != null) continue;
+            if (button instanceof LabeledFloatingActionButton) {
+                final String title = ((LabeledFloatingActionButton) button).getTitle();
 
-            final AppCompatTextView label = new AppCompatTextView(context);
-            label.setTextAppearance(context, mLabelsStyle);
-            label.setText(button.getTitle());
-            addView(label);
+                final AppCompatTextView label = new AppCompatTextView(context);
+                label.setTextAppearance(context, mLabelsStyle);
+                label.setText(title);
+                addView(label);
 
-            button.setTag(R.id.fab_label, label);
+                button.setTag(R.id.fab_label, label);
+            }
         }
     }
 

app/src/main/java/com/wireguard/android/widget/fab/LabeledFloatingActionButton.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright © 2014 Jerzy Chalupski
+ * Copyright © 2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package com.wireguard.android.widget.fab;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.support.design.widget.FloatingActionButton;
+import android.util.AttributeSet;
+import android.widget.TextView;
+
+import com.wireguard.android.R;
+
+public class LabeledFloatingActionButton extends FloatingActionButton {
+
+    private final String title;
+
+    public LabeledFloatingActionButton(final Context context) {
+        this(context, null);
+    }
+
+    public LabeledFloatingActionButton(final Context context, final AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public LabeledFloatingActionButton(final Context context, final AttributeSet attrs, final int defStyle) {
+        super(context, attrs, defStyle);
+
+        final TypedArray attr = context.obtainStyledAttributes(attrs, R.styleable.LabeledFloatingActionButton, 0, 0);
+        title = attr.getString(R.styleable.LabeledFloatingActionButton_fab_title);
+        attr.recycle();
+    }
+
+    TextView getLabelView() {
+        return (TextView) getTag(R.id.fab_label);
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    @Override
+    public void setVisibility(final int visibility) {
+        final TextView label = getLabelView();
+        if (label != null) {
+            label.setVisibility(visibility);
+        }
+
+        super.setVisibility(visibility);
+    }
+
+}

app/src/main/java/com/wireguard/android/widget/fab/TouchDelegateGroup.java

@@ -43,13 +43,14 @@ public class TouchDelegateGroup extends TouchDelegate {
 
     @Override
     public boolean onTouchEvent(@NonNull final MotionEvent event) {
-        if (!mEnabled) return false;
+        if (!mEnabled)
+            return false;
 
         TouchDelegate delegate = null;
 
         switch (event.getAction()) {
             case MotionEvent.ACTION_DOWN:
-		for (final TouchDelegate touchDelegate : mTouchDelegates) {
+                for (final TouchDelegate touchDelegate : mTouchDelegates) {
                     if (touchDelegate.onTouchEvent(event)) {
                         mCurrentTouchDelegate = touchDelegate;
                         return true;

app/src/main/res/drawable/ic_action_add_inverse.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="?android:attr/colorBackground"
+        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z" />
+</vector>

app/src/main/res/layout/tunnel_list_fragment.xml

@@ -23,7 +23,8 @@
         android:id="@+id/main_container"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:background="?android:attr/colorBackground">
+        android:background="?android:attr/colorBackground"
+        android:clipChildren="false">
 
         <android.support.v7.widget.RecyclerView
             android:id="@+id/tunnel_list"
@@ -39,27 +40,27 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="bottom|end"
-            android:layout_margin="8dp"
+            android:layout_margin="16dp"
             app:fab_labelStyle="@style/fab_label"
-            app:fab_labelsPosition="left"
-            app:layout_dodgeInsetEdges="bottom">
+            android:clipChildren="false"
+            app:fab_labelsPosition="left" >
 
-            <com.wireguard.android.widget.fab.FloatingActionButton
+            <com.wireguard.android.widget.fab.LabeledFloatingActionButton
                 android:id="@+id/create_empty"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:onClick="@{fragment::onRequestCreateConfig}"
-                app:fab_icon="@drawable/ic_action_edit_inverse"
-                app:fab_size="mini"
+                app:fabSize="mini"
+                app:srcCompat="@drawable/ic_action_edit_inverse"
                 app:fab_title="@string/create_empty" />
 
-            <com.wireguard.android.widget.fab.FloatingActionButton
+            <com.wireguard.android.widget.fab.LabeledFloatingActionButton
                 android:id="@+id/create_from_file"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:onClick="@{fragment::onRequestImportConfig}"
-                app:fab_icon="@drawable/ic_action_open_inverse"
-                app:fab_size="mini"
+                app:srcCompat="@drawable/ic_action_open_inverse"
+                app:fabSize="mini"
                 app:fab_title="@string/create_from_file" />
         </com.wireguard.android.widget.fab.FloatingActionsMenu>
     </android.support.design.widget.CoordinatorLayout>

app/src/main/res/values/fab.xml

@@ -3,46 +3,18 @@
     <item name="fab_expand_menu_button" type="id"/>
     <item name="fab_label" type="id"/>
 
-    <dimen name="fab_size_normal">56dp</dimen>
-    <dimen name="fab_size_mini">40dp</dimen>
-
-    <dimen name="fab_icon_size">24dp</dimen>
-
-    <dimen name="fab_plus_icon_size">14dp</dimen>
-    <dimen name="fab_plus_icon_stroke">2dp</dimen>
-
     <dimen name="fab_shadow_offset">3dp</dimen>
     <dimen name="fab_shadow_radius">9dp</dimen>
 
     <dimen name="fab_stroke_width">1dp</dimen>
 
-    <dimen name="fab_actions_spacing">16dp</dimen>
+    <dimen name="fab_actions_spacing">24dp</dimen>
     <dimen name="fab_labels_margin">8dp</dimen>
 
-    <declare-styleable name="FloatingActionButton">
-        <attr name="fab_colorPressed" format="color"/>
-        <attr name="fab_colorDisabled" format="color"/>
-        <attr name="fab_colorNormal" format="color"/>
-        <attr name="fab_icon" format="reference"/>
-        <attr name="fab_size" format="enum">
-            <enum name="normal" value="0"/>
-            <enum name="mini" value="1"/>
-        </attr>
+    <declare-styleable name="LabeledFloatingActionButton">
         <attr name="fab_title" format="string"/>
-        <attr name="fab_stroke_visible" format="boolean"/>
-    </declare-styleable>
-    <declare-styleable name="AddFloatingActionButton">
-        <attr name="fab_plusIconColor" format="color"/>
     </declare-styleable>
     <declare-styleable name="FloatingActionsMenu">
-        <attr name="fab_addButtonColorPressed" format="color"/>
-        <attr name="fab_addButtonColorNormal" format="color"/>
-        <attr name="fab_addButtonSize" format="enum">
-            <enum name="normal" value="0"/>
-            <enum name="mini" value="1"/>
-        </attr>
-        <attr name="fab_addButtonPlusIconColor" format="color"/>
-        <attr name="fab_addButtonStrokeVisible" format="boolean"/>
         <attr name="fab_labelStyle" format="reference"/>
         <attr name="fab_labelsPosition" format="enum">
             <enum name="left" value="0"/>