/// <summary>
/// 显示动弹对象
/// </summary>
/// <param name="t">动弹对象</param>
private void DisplayTweet(TweetUnit t)
{
this. currentTweet = t;
//开始关闭动画 (建议 Fade)
this. fadeOut. Begin( );
this. fadeOut. Completed += (s, e) =>
{
//然后控件转变
this. lblName. Text = string. Format( "{0}:", t. author );
this. lblContent. Text = t. body;
this. lblComment. Text = string. Format( "{0} {1}评", t. pubDateFormat, t. commentCount );
this. imgPortrait. Source = new BitmapImage( new Uri( t. portrait. IsNotNullOrWhitespace( ) ? t. portrait : "/Resource/avatar_noimg.jpg", UriKind. RelativeOrAbsolute ) );
//最后执行上移动画
this. fadeIn. Begin( );
};
}
/// <summary>
/// 获取下一个动弹对象
/// </summary>
/// <param name="tweets">动弹集合</param>
private void GetNextTweetUnit(TweetUnit[ ] tweets)
{
if ( tweets != null && tweets. Length > 0 )
{
TweetUnit t = tweets[ 0 ];
for ( int i = 0 ; i < tweets. Length ; i++ )
{
if ( tweets[ i ]. id == tweetID )
{
//返回下一项
t = i < tweets. Length - 1 ? tweets[ i + 1 ] : tweets[ 0 ];
break;
}
}
//获取下一项
this. tweetID = t. id;
this. DisplayTweet( t );
}
}