FloatingActionButtonEclairMr1.java 文件源码

void setBackgroundDrawable(ColorStateList backgroundTint, Mode backgroundTintMode, int rippleColor, int borderWidth) {
    Drawable[] layers;
    this.mShapeDrawable = DrawableCompat.wrap(createShapeDrawable());
    DrawableCompat.setTintList(this.mShapeDrawable, backgroundTint);
    if (backgroundTintMode != null) {
        DrawableCompat.setTintMode(this.mShapeDrawable, backgroundTintMode);
    }
    this.mRippleDrawable = DrawableCompat.wrap(createShapeDrawable());
    DrawableCompat.setTintList(this.mRippleDrawable, createColorStateList(rippleColor));
    if (borderWidth > 0) {
        this.mBorderDrawable = createBorderDrawable(borderWidth, backgroundTint);
        layers = new Drawable[]{this.mBorderDrawable, this.mShapeDrawable, this.mRippleDrawable};
    } else {
        this.mBorderDrawable = null;
        layers = new Drawable[]{this.mShapeDrawable, this.mRippleDrawable};
    }
    this.mContentBackground = new LayerDrawable(layers);
    this.mShadowDrawable = new ShadowDrawableWrapper(this.mView.getResources(), this.mContentBackground, this.mShadowViewDelegate.getRadius(), this.mElevation, this.mElevation + this.mPressedTranslationZ);
    this.mShadowDrawable.setAddPaddingForCorners(false);
    this.mShadowViewDelegate.setBackgroundDrawable(this.mShadowDrawable);
}