小编Evg*_*y E的帖子

我尝试了很多建议,但没有任何作用!当我在后台线程中调用Thread.sleep()时,主线程也会冻结此时间(动画帧丢弃):(

版本1:

public void UpdateChannels(final ArrayList<Channel> channels)
{
    new AsyncTask<ArrayList<Channel>, Object[], Void>()
    {
        @Override
        protected Void doInBackground(ArrayList<Channel>... arrayLists)
        {
            for(Channel channel : arrayLists[0])
            {
                Integer chid = new Integer(channel.arfcn);
                ChannelRect channelRect = Channels.get(chid);
                publishProgress(new Object[] {channelRect, channel.dBm});

                try
                {
                    Thread.sleep(1000);
                } catch (InterruptedException e)
                {
                    e.printStackTrace();
                }
            }
            return null;
        }

        @Override
        protected void onProgressUpdate(Object[]... values)
        {
            ChannelRect channelRect = (ChannelRect) values[0][0];
            int value = (Integer)values[0][1];
            channelRect.setValue(value);
            channelRect.Animate();
        }
    }.execute(channels);
}

版本2:

 public void UpdateChannels(final ArrayList<Channel> channels)
{
    new Thread(new …

我有两个动画:

    <Storyboard x:Key="ChangeLayout">
        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(Canvas.Left)" Storyboard.TargetName="currentContent">
            <EasingDoubleKeyFrame KeyTime="0:0:0.0" Value="900"/>
            <EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0">
                <EasingDoubleKeyFrame.EasingFunction>
                    <CircleEase EasingMode="EaseInOut"/>
                </EasingDoubleKeyFrame.EasingFunction>
            </EasingDoubleKeyFrame>
        </DoubleAnimationUsingKeyFrames>
    </Storyboard>
    <Storyboard x:Key="HideLayout">
        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(Canvas.Left)" Storyboard.TargetName="currentContent">
            <EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="-900">
                <EasingDoubleKeyFrame.EasingFunction>
                    <CircleEase EasingMode="EaseInOut"/>
                </EasingDoubleKeyFrame.EasingFunction>
            </EasingDoubleKeyFrame>
        </DoubleAnimationUsingKeyFrames>
    </Storyboard>

以及开始它们的代码:

private void btnUser_Click(object sender, RoutedEventArgs e)
    {
        if (currentContent.Content != null)
            if (currentContent.Content.GetType() == typeof(Layouts.User))
                return;
        ((hl.Children[0] as DoubleAnimationUsingKeyFrames).KeyFrames[0] as EasingDoubleKeyFrame).Value = -this.ActualWidth;
        hl.Completed += (_sender, _e) =>
        {
            currentContent.Content = new Layouts.User();
            cl.Completed += (ssender, ee) =>
                {
                    btnMusic.Opacity = 0.5;
                    btnUser.Opacity = 0.9; …