@Override
public void setBackgroundResource(@DrawableRes int resId) {
super.setBackgroundResource(resId);
if (!mDrawFullUnderlineSet) {
mDrawFullUnderline = resId == 0;
}
}
@Override
public void setBackgroundColor(int color) {
super.setBackgroundColor(color);
if (!mDrawFullUnderlineSet) {
mDrawFullUnderline = (color & 0xFF000000) == 0;
}
}
@Override
public void setBackgroundDrawable(Drawable d) {
super.setBackgroundDrawable(d);
if (!mDrawFullUnderlineSet) {
mDrawFullUnderline = d == null;
}
}
@Override
public void setTextSpacing(int textSpacing) {
if (textSpacing < mMinTextSpacing) {
textSpacing = mMinTextSpacing;
}
super.setTextSpacing(textSpacing);
}
@Override
public void setPadding(int left, int top, int right, int bottom) {
if (bottom < mMinPaddingBottom) {
bottom = mMinPaddingBottom;
}
super.setPadding(left, top, right, bottom);
}
@Override
void updateTextPositions(int position, float positionOffset, boolean force) {
final Rect r = mTempRect;
int bottom = getHeight();
int left = mCurrText.getLeft() - mTabPadding;
int right = mCurrText.getRight() + mTabPadding;
int top = bottom - mIndicatorHeight;
r.set(left, top, right, bottom);
super.updateTextPositions(position, positionOffset, force);
mTabAlpha = (int) (Math.abs(positionOffset - 0.5f) * 2 * 0xFF);
left = mCurrText.getLeft() - mTabPadding;
right = mCurrText.getRight() + mTabPadding;
r.union(left, top, right, bottom);
invalidate(r);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
final int height = getHeight();
final int bottom = height;
final int left = mCurrText.getLeft() - mTabPadding;
final int right = mCurrText.getRight() + mTabPadding;
final int top = bottom - mIndicatorHeight;
mTabPaint.setColor(mTabAlpha << 24 | (mIndicatorColor & 0xFFFFFF));
canvas.drawRect(left, top, right, bottom, mTabPaint);
if (mDrawFullUnderline) {
mTabPaint.setColor(0xFF << 24 | (mIndicatorColor & 0xFFFFFF));
canvas.drawRect(
getPaddingLeft(),
height - mFullUnderlineHeight,
getWidth() - getPaddingRight(),
height,
mTabPaint);
}
}
