private void updateParams(int x, int y, int gravity, ViewGroup.LayoutParams params) {
int horizontalGravity = gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
switch (horizontalGravity) {
case Gravity.LEFT:
setLeftMargin(params, (int) (x - mBackground.getPaddingLeft()));
break;
case Gravity.CENTER_HORIZONTAL:
setLeftMargin(params, (int) (x - mBackground.getCenterX()));
break;
case Gravity.RIGHT:
setLeftMargin(
params, (int) (x - mBackground.getPaddingLeft() - mBackground.getRadius() * 2));
break;
default:
setLeftMargin(params, (int) (x - mBackground.getPaddingLeft()));
break;
}
int verticalGravity = gravity & Gravity.VERTICAL_GRAVITY_MASK;
switch (verticalGravity) {
case Gravity.TOP:
setTopMargin(params, (int) (y - mBackground.getPaddingTop()));
break;
case Gravity.CENTER_VERTICAL:
setTopMargin(params, (int) (y - mBackground.getCenterY()));
break;
case Gravity.BOTTOM:
setTopMargin(params, (int) (y - mBackground.getPaddingTop() - mBackground.getRadius() * 2));
break;
default:
setTopMargin(params, (int) (y - mBackground.getPaddingTop()));
break;
}
setLayoutParams(params);
}
protected void applyStyle(
Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
TypedArray a =
context.obtainStyledAttributes(
attrs, R.styleable.FloatingActionButton, defStyleAttr, defStyleRes);
int radius = -1;
int elevation = -1;
ColorStateList bgColor = null;
int bgAnimDuration = -1;
int iconSrc = 0;
int iconLineMorphing = 0;
for (int i = 0, count = a.getIndexCount(); i < count; i++) {
int attr = a.getIndex(i);
if (attr == R.styleable.FloatingActionButton_fab_radius)
radius = a.getDimensionPixelSize(attr, 0);
else if (attr == R.styleable.FloatingActionButton_fab_elevation)
elevation = a.getDimensionPixelSize(attr, 0);
else if (attr == R.styleable.FloatingActionButton_fab_backgroundColor)
bgColor = a.getColorStateList(attr);
else if (attr == R.styleable.FloatingActionButton_fab_backgroundAnimDuration)
bgAnimDuration = a.getInteger(attr, 0);
else if (attr == R.styleable.FloatingActionButton_fab_iconSrc)
iconSrc = a.getResourceId(attr, 0);
else if (attr == R.styleable.FloatingActionButton_fab_iconLineMorphing)
iconLineMorphing = a.getResourceId(attr, 0);
else if (attr == R.styleable.FloatingActionButton_fab_iconSize)
mIconSize = a.getDimensionPixelSize(attr, 0);
else if (attr == R.styleable.FloatingActionButton_fab_animDuration)
mAnimDuration = a.getInteger(attr, 0);
else if (attr == R.styleable.FloatingActionButton_fab_interpolator) {
int resId = a.getResourceId(R.styleable.FloatingActionButton_fab_interpolator, 0);
if (resId != 0) mInterpolator = AnimationUtils.loadInterpolator(context, resId);
}
}
a.recycle();
if (mIconSize < 0) mIconSize = ThemeUtil.dpToPx(context, 24);
if (mAnimDuration < 0)
mAnimDuration = context.getResources().getInteger(android.R.integer.config_mediumAnimTime);
if (mInterpolator == null) mInterpolator = new DecelerateInterpolator();
if (mBackground == null) {
if (radius < 0) radius = ThemeUtil.dpToPx(context, 28);
if (elevation < 0) elevation = ThemeUtil.dpToPx(context, 4);
if (bgColor == null) bgColor = ColorStateList.valueOf(ThemeUtil.colorAccent(context, 0));
if (bgAnimDuration < 0) bgAnimDuration = 0;
mBackground = new OvalShadowDrawable(radius, bgColor, elevation, elevation, bgAnimDuration);
mBackground.setInEditMode(isInEditMode());
mBackground.setBounds(0, 0, getWidth(), getHeight());
mBackground.setCallback(this);
} else {
if (radius >= 0) mBackground.setRadius(radius);
if (bgColor != null) mBackground.setColor(bgColor);
if (elevation >= 0) mBackground.setShadow(elevation, elevation);
if (bgAnimDuration >= 0) mBackground.setAnimationDuration(bgAnimDuration);
}
if (iconLineMorphing != 0)
setIcon(new LineMorphingDrawable.Builder(context, iconLineMorphing).build(), false);
else if (iconSrc != 0) setIcon(context.getResources().getDrawable(iconSrc), false);
getRippleManager().onCreate(this, context, attrs, defStyleAttr, defStyleRes);
Drawable background = getBackground();
if (background != null && background instanceof RippleDrawable) {
RippleDrawable drawable = (RippleDrawable) background;
drawable.setBackgroundDrawable(null);
drawable.setMask(
RippleDrawable.Mask.TYPE_OVAL,
0,
0,
0,
0,
(int) mBackground.getPaddingLeft(),
(int) mBackground.getPaddingTop(),
(int) mBackground.getPaddingRight(),
(int) mBackground.getPaddingBottom());
}
}