public int addChild(android.graphics.drawable.Drawable dr)
{
int pos = mNumChildren;
if (pos >= mDrawables.Length)
{
growArray(pos, pos + 10);
}
dr.setVisible(false, true);
dr.setCallback(mOwner);
mDrawables[pos] = dr;
mNumChildren++;
mChildrenChangingConfigurations |= dr.getChangingConfigurations();
mHaveOpacity = false;
mHaveStateful = false;
mConstantPadding = null;
mPaddingChecked = false;
mComputedConstantSize = false;
return pos;
}
/// <summary>Set the checkmark to a given Drawable.</summary>
/// <remarks>
/// Set the checkmark to a given Drawable. This will be drawn when
/// <see cref="isChecked()">isChecked()</see>
/// is true.
/// </remarks>
/// <param name="d">The Drawable to use for the checkmark.</param>
public virtual void setCheckMarkDrawable(android.graphics.drawable.Drawable d)
{
if (mCheckMarkDrawable != null)
{
mCheckMarkDrawable.setCallback(null);
unscheduleDrawable(mCheckMarkDrawable);
}
mNeedRequestlayout = (d != mCheckMarkDrawable);
if (d != null)
{
d.setCallback(this);
d.setVisible(getVisibility() == VISIBLE, false);
d.setState(CHECKED_STATE_SET);
setMinHeight(d.getIntrinsicHeight());
mCheckMarkWidth = d.getIntrinsicWidth();
d.setState(getDrawableState());
}
else
{
mCheckMarkWidth = 0;
}
mCheckMarkDrawable = d;
// Do padding resolution. This will call setPadding() and do a requestLayout() if needed.
resolvePadding();
}
/// <summary>
/// Sets the drawable in an image view, makes sure the view is only visible if there
/// is a drawable.
/// </summary>
/// <remarks>
/// Sets the drawable in an image view, makes sure the view is only visible if there
/// is a drawable.
/// </remarks>
private void setViewDrawable(android.widget.ImageView v, android.graphics.drawable.Drawable
drawable, int nullVisibility)
{
// Set the icon even if the drawable is null, since we need to clear any
// previous icon.
v.setImageDrawable(drawable);
if (drawable == null)
{
v.setVisibility(nullVisibility);
}
else
{
v.setVisibility(android.view.View.VISIBLE);
// This is a hack to get any animated drawables (like a 'working' spinner)
// to animate. You have to setVisible true on an AnimationDrawable to get
// it to start animating, but it must first have been false or else the
// call to setVisible will be ineffective. We need to clear up the story
// about animated drawables in the future, see http://b/1878430.
drawable.setVisible(false, false);
drawable.setVisible(true, false);
}
}
