/// <summary>
/// 创建gif动画
/// </summary>
/// <param name="memoryStream">内存数据流</param>
private void CreateGifAnimation(MemoryStream memoryStream)
{
this._gifAnimation = new GifAnimation();
this._gifAnimation.CreateGifAnimation(memoryStream);
this._gifAnimation.Stretch = this.Stretch;
this._gifAnimation.StretchDirection = this.StretchDirection;
this.AddChild(this._gifAnimation);
}
/// <summary>
/// 删除之前的图片
/// </summary>
private void DeletePreviousImage()
{
if (this._image != null)
{
this.RemoveLogicalChild(this._image);
this._image = null;
}
if (this._gifAnimation != null)
{
this.RemoveLogicalChild(this._gifAnimation);
this._gifAnimation = null;
}
}