protected override void OnDraw(Canvas canvas)
{
int height = Height;
int childCount = ChildCount;
int dividerHeightPx = (int)(Math.Min(Math.Max(0f, mDividerHeight), 1f) * height);
ITabColorizer tabColorizer = mCustomTabColorizer != null ? mCustomTabColorizer : mDefaultTabColorizer;
if (childCount > 0)
{
View selectedTitle = GetChildAt(mSelectedPosition);
int left = selectedTitle.Left;
int right = selectedTitle.Right;
int color = tabColorizer.GetIndicatorColor(mSelectedPosition);
if (mSelectionOffset > 0f && mSelectedPosition < (childCount - 1))
{
int nextColor = tabColorizer.GetIndicatorColor(mSelectedPosition + 1);
if (color != nextColor)
{
color = BlendColors(nextColor, color, mSelectionOffset);
}
View nextTitle = GetChildAt(mSelectedPosition + 1);
left = (int)(mSelectionOffset * nextTitle.Left + (1.0f - mSelectionOffset) * left);
right = (int)(mSelectionOffset * nextTitle.Right + (1.0f - mSelectionOffset) * right);
}
mSelectedIndicatorPaint.Color = new Color(color);
canvas.DrawRect(left, height - mSelectedIndicatorThickness, right, height, mSelectedIndicatorPaint);
}
canvas.DrawRect(0, height - mBottomBorderThickness, Width, height, mBottomBorderPaint);
int separatorTop = (height - dividerHeightPx) / 2;
for (int i = 0; i < childCount - 1; i++)
{
View child = GetChildAt(i);
mDividerPaint.Color = new Color(tabColorizer.GetDividerColor(i));
canvas.DrawLine(child.Right, separatorTop, child.Right,
separatorTop + dividerHeightPx, mDividerPaint);
}
}
/**
* Set the custom {@link TabColorizer} to be used.
*
* If you only require simple custmisation then you can use
* {@link #setSelectedIndicatorColors(int...)} to achieve
* similar effects.
*/
public void SetCustomTabColorizer(ITabColorizer tabColorizer)
{
_tabStrip.SetCustomTabColorizer(tabColorizer);
}
public void SetCustomTabColorizer(ITabColorizer customTabColorizer)
{
mCustomTabColorizer = customTabColorizer;
Invalidate();
}
public void SetSelectedIndicatorColors(params int[] colors)
{
mCustomTabColorizer = null;
mDefaultTabColorizer.SetIndicatorColors(colors);
Invalidate();
}
public void SetDividerColors(params int[] colors)
{
mCustomTabColorizer = null;
mDefaultTabColorizer.SetDividerColors(colors);
Invalidate();
}
/**
* Set the custom {@link TabColorizer} to be used.
*
* If you only require simple custmisation then you can use
* {@link #setSelectedIndicatorColors(int...)} and {@link #setDividerColors(int...)} to achieve
* similar effects.
*/
public void SetCustomTabColorizer(ITabColorizer TabColorizer) {
_tabStrip.SetCustomTabColorizer(TabColorizer);
}
public void SetCustomTabColorizer(ITabColorizer tabColorizer)
{
mTabStrip.SetCustomTabColorizer(tabColorizer);
}
public void SetDividerColors(params int[] colors)
{
mCustomTabColorizer = null;
mDefaultTabColorizer.SetDividerColors(colors);
Invalidate();
}
public void SetSelectedIndicatorColors(params int[] colors)
{
mCustomTabColorizer = null;
mDefaultTabColorizer.SetIndicatorColors(colors);
Invalidate();
}
public void SetCustomTabColorizer(ITabColorizer customTabColorizer)
{
mCustomTabColorizer = customTabColorizer;
Invalidate();
}
