public static IEnumerable <View> EnumerateAllChildren(this ViewGroup view, int maxDepth = 20)
{
foreach (var sub in view.GetChildren())
{
yield return(sub);
if (maxDepth > 0)
{
if (sub is ViewGroup childGroup)
{
foreach (var subResult in childGroup.EnumerateAllChildren(maxDepth - 1))
{
yield return(subResult);
}
}
}
}
}
/// <summary>
/// Enumerates all the children for a specified view group.
/// </summary>
/// <param name="view">The view group to get the children from</param>
/// <param name="maxDepth">The depth to stop looking for children.</param>
/// <returns>A lazy enumerable of views</returns>
public static IEnumerable<View> EnumerateAllChildren(this ViewGroup view, int maxDepth = 20)
{
foreach (var sub in view.GetChildren())
{
yield return sub;
if (maxDepth > 0)
{
var childGroup = sub as ViewGroup;
if (childGroup != null)
{
foreach (var subResult in childGroup.EnumerateAllChildren(maxDepth - 1))
{
yield return subResult;
}
}
}
}
}
/// <summary>
/// Enumerates all the children for a specified view group.
/// </summary>
/// <param name="view">The view group to get the children from</param>
/// <param name="selector">The selector function</param>
/// <param name="maxDepth">The depth to stop looking for children.</param>
/// <returns>A lazy enumerable of views</returns>
public static IEnumerable <View> EnumerateAllChildren(this ViewGroup view, Func <View, bool> selector, int maxDepth = 20)
{
foreach (var sub in view.GetChildren())
{
if (selector(sub))
{
yield return(sub);
}
else if (maxDepth > 0)
{
var childGroup = sub as ViewGroup;
if (childGroup != null)
{
foreach (var subResult in childGroup.EnumerateAllChildren(selector, maxDepth - 1))
{
yield return(subResult);
}
}
}
}
}
public static IEnumerable <T> GetChildren <T>(this ViewGroup view) => view.GetChildren().OfType <T>();
