/// <summary>
/// Transforms the index stored in
/// <see cref="AnimationParameters">AnimationParameters</see>
/// by the order returned by
/// <see cref="getOrder()">getOrder()</see>
/// . Subclasses should override
/// this method to provide additional support for other types of ordering.
/// This method should be invoked by
/// <see cref="getDelayForView(android.view.View)">getDelayForView(android.view.View)
/// </see>
/// prior to any computation.
/// </summary>
/// <param name="params">the animation parameters containing the index</param>
/// <returns>a transformed index</returns>
protected internal virtual int getTransformedIndex(android.view.animation.LayoutAnimationController
.AnimationParameters @params)
{
switch (getOrder())
{
case ORDER_REVERSE:
{
return(@params.count - 1 - @params.index);
}
case ORDER_RANDOM:
{
if (mRandomizer == null)
{
mRandomizer = new System.Random();
}
return((int)(@params.count * Sharpen.Util.Random_NextFloat(mRandomizer)));
}
case ORDER_NORMAL:
default:
{
return(@params.index);
}
}
}
protected virtual int getTransformedIndex(android.view.animation.LayoutAnimationController.AnimationParameters arg0)
{
global::MonoJavaBridge.JNIEnv @__env = global::MonoJavaBridge.JNIEnv.ThreadEnv;
if (!IsClrObject)
{
return(@__env.CallIntMethod(this.JvmHandle, global::android.view.animation.LayoutAnimationController._getTransformedIndex10035, global::MonoJavaBridge.JavaBridge.ConvertToValue(arg0)));
}
else
{
return(@__env.CallNonVirtualIntMethod(this.JvmHandle, global::android.view.animation.LayoutAnimationController.staticClass, global::android.view.animation.LayoutAnimationController._getTransformedIndex10035, global::MonoJavaBridge.JavaBridge.ConvertToValue(arg0)));
}
}
/// <summary>
/// Returns the amount of milliseconds by which the specified view's
/// animation must be delayed or offset.
/// </summary>
/// <remarks>
/// Returns the amount of milliseconds by which the specified view's
/// animation must be delayed or offset. Subclasses should override this
/// method to return a suitable value.
/// This implementation returns <code>child animation delay</code>
/// milliseconds where:
/// <pre>
/// child animation delay = child index * delay
/// </pre>
/// The index is retrieved from the
/// <see cref="AnimationParameters">AnimationParameters</see>
/// found in the view's
/// <see cref="android.view.ViewGroup.LayoutParams">android.view.ViewGroup.LayoutParams
/// </see>
/// .
/// </remarks>
/// <param name="view">the view for which to obtain the animation's delay</param>
/// <returns>a delay in milliseconds</returns>
/// <seealso cref="getAnimationForView(android.view.View)">getAnimationForView(android.view.View)
/// </seealso>
/// <seealso cref="getDelay()">getDelay()</seealso>
/// <seealso cref="getTransformedIndex(AnimationParameters)">getTransformedIndex(AnimationParameters)
/// </seealso>
/// <seealso cref="android.view.ViewGroup.LayoutParams">android.view.ViewGroup.LayoutParams
/// </seealso>
protected internal virtual long getDelayForView(android.view.View view)
{
android.view.ViewGroup.LayoutParams lp = view.getLayoutParams();
android.view.animation.LayoutAnimationController.AnimationParameters @params = lp
.layoutAnimationParameters;
if (@params == null)
{
return(0);
}
float delay = mDelay * mAnimation.getDuration();
long viewDelay = (long)(getTransformedIndex(@params) * delay);
float totalDelay = delay * @params.count;
if (mInterpolator == null)
{
mInterpolator = new android.view.animation.LinearInterpolator();
}
float normalizedDelay = viewDelay / totalDelay;
normalizedDelay = mInterpolator.getInterpolation(normalizedDelay);
return((long)(normalizedDelay * totalDelay));
}
/// <summary>
/// Subclasses should override this method to set layout animation
/// parameters on the supplied child.
/// </summary>
/// <remarks>
/// Subclasses should override this method to set layout animation
/// parameters on the supplied child.
/// </remarks>
/// <param name="child">the child to associate with animation parameters</param>
/// <param name="params">
/// the child's layout parameters which hold the animation
/// parameters
/// </param>
/// <param name="index">the index of the child in the view group</param>
/// <param name="count">the number of children in the view group</param>
protected internal virtual void attachLayoutAnimationParameters(android.view.View
child, android.view.ViewGroup.LayoutParams @params, int index, int count)
{
android.view.animation.LayoutAnimationController.AnimationParameters animationParams
= @params.layoutAnimationParameters;
if (animationParams == null)
{
animationParams = new android.view.animation.LayoutAnimationController.AnimationParameters
();
@params.layoutAnimationParameters = animationParams;
}
animationParams.count = count;
animationParams.index = index;
}
