private async void scrollViewer_ViewerChanged(object sender, ScrollViewerViewChangedEventArgs e)
{
if (!e.IsIntermediate)
{
IsPullRefresh = true;
//将服务器返回的JSON反序列化为对象集合
foreach (CommentsOrRepliesEntity item in await HTTPRequestHelper <CommentsOrRepliesEntity> .requestAndResponseCollections(MobileInterfaceFactory.GET_AN_ARTICLE_COMMENTS_OR_REPLIES_INFO, "{\"pageIndex\":" + (pageIndex += 1).ToString() + ",\"articleId\":" + articleId + "}"))
{
commentsOrRepliesModel.Add(item);
}
cOrRList.ItemsSource = commentsOrRepliesModel;
IsPullRefresh = false;
}
}
private async void scrollViewer_ViewChanged(object sender, ScrollViewerViewChangedEventArgs e)
{
if (!e.IsIntermediate)
{
IsPullRefresh = true;
//将服务器返回的JSON反序列化为对象集合
foreach (ArticlesEntity item in await HTTPRequestHelper <ArticlesEntity> .requestAndResponseCollections(MobileInterfaceFactory.GET_ALL_ARTICLES_INFO, "{\"paramJsonDatas\":" + (pageIndex += 1).ToString() + "}"))
{
articlesModel.Add(item);
}
mainPageList.ItemsSource = articlesModel;
IsPullRefresh = false;
}
}
private async void PraiseCountButton_Click(object sender, RoutedEventArgs e)
{
string dialogTitle = "", dialogContent = "";
var selectItem = cOrRList.SelectedItem;
//如果没有选中项，则给出提示
if (null == selectItem)
{
await ContentDialogTemplateUtil.showContentDialog("操作错误", "请选中一项评论/回复消息后再点赞。", true, false, "好的", null, ContentDialogStyle.NORMAL).ShowAsync();
}
else
{
string prepareParam = "{\"paramJsonDatas\":" + ((CommentsOrRepliesEntity)selectItem).id + "}";
ObservableCollection <DoPraiseRespEntity> resultEntity = await HTTPRequestHelper <DoPraiseRespEntity> .requestAndResponseCollections(MobileInterfaceFactory.DO_PRAISE_FOR_COMMENTS_OR_REPLIES_INFO, prepareParam);
//最终结果属性
var resultFlag = bool.Parse(resultEntity[0].result.ToString());
//是否点赞过属性
var isPraisedFlag = bool.Parse(resultEntity[0].isParised.ToString());
//如果最终结果为true，是否点赞为false，则表示点赞成功
if (resultFlag == true && isPraisedFlag == false)
{
dialogTitle = "点赞成功";
dialogContent = "恭喜，点赞成功！";
InitMainPageDatas(true);
}
//如果最终结果为false，是否点赞为true，则表示已点过赞
else if (resultFlag == false && isPraisedFlag == true)
{
dialogTitle = "点赞失败";
dialogContent = "请勿重复点赞！";
}
//如果最终结果和是否点赞都为false，则表示点赞失败
else if (resultFlag == false && isPraisedFlag == false)
{
dialogTitle = "点赞失败";
dialogContent = "非常抱歉，在您尝试点赞时发生错误，请稍候再试。";
}
await ContentDialogTemplateUtil.showContentDialog(dialogTitle, dialogContent, true, false, "好的", null, ContentDialogStyle.NORMAL).ShowAsync();
}
}
/// <summary>
/// 初始化主页数据的方法
/// </summary>
public async void InitMainPageDatas(bool refreshButtonClicked)
{
noDataPicArea.Visibility = Visibility.Collapsed;
scrollViewer.Visibility = Visibility.Visible;
try
{
LoadInitData = true;
commentsOrRepliesModel = await HTTPRequestHelper <CommentsOrRepliesEntity> .requestAndResponseCollections(MobileInterfaceFactory.GET_AN_ARTICLE_COMMENTS_OR_REPLIES_INFO, "{\"pageIndex\":" + (refreshButtonClicked == true ? 1 : pageIndex) + ",\"articleId\":" + articleId + "}");
//为0则表示没有数据，给出提示
if (commentsOrRepliesModel.Count == 0)
{
noDataPicArea.Visibility = Visibility.Visible;
scrollViewer.Visibility = Visibility.Collapsed;
}
else
{
noDataPicArea.Visibility = Visibility.Collapsed;
scrollViewer.Visibility = Visibility.Visible;
cOrRList.ItemsSource = commentsOrRepliesModel;
}
progressOfInitFirstCOrRDatas.Visibility = Visibility.Collapsed;
}
catch (HttpRequestException requestEx)
{
await ContentDialogTemplateUtil.showContentDialog(SystemMessage.DialogCommonTitleMsg, requestEx.Message, true, false, SystemMessage.DialogButtonByOkValueMsg, String.Empty, ContentDialogStyle.NORMAL).ShowAsync();
}
catch (Exception ex)
{
await ContentDialogTemplateUtil.showContentDialog(SystemMessage.DialogCommonTitleMsg, ex.Message, true, false, SystemMessage.DialogButtonByOkValueMsg, String.Empty, ContentDialogStyle.NORMAL).ShowAsync();
}
finally
{
LoadInitData = false;
}
}
/// <summary>
/// 登录
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void btnLogin_Click(object sender, RoutedEventArgs e)
{
if (String.IsNullOrEmpty(this.inputAccount.Text) || this.inputAccount.Text.Length <= 0)
{
await new MessageDialog("请填写您的账户信息。", SystemMessage.DialogCommonTitleMsg).ShowAsync();
return;
}
else if (String.IsNullOrEmpty(this.inputPassword.Password) || this.inputPassword.Password.Length <= 0)
{
await new MessageDialog("请填写您的账户密码。", SystemMessage.DialogCommonTitleMsg).ShowAsync();
return;
}
User u = new User()
{
userNickName = this.inputAccount.Text, userPassword = this.inputPassword.Password
};
//对象序列化为JSON字符串
string serializeResult = JsonConvert.SerializeObject(u);
ObservableCollection <UserLoginRespEntity> result = await HTTPRequestHelper <UserLoginRespEntity> .requestAndResponseCollections(MobileInterfaceFactory.USER_LOGIN, serializeResult);
if (result[0].result == true)
{
//await ContentDialogTemplateUtil.showContentDialog(SystemMessage.DialogCommonTitleMsg, SystemMessage.LoginSuccessMsg, true, false, SystemMessage.DialogButtonByOkValueMsg, string.Empty, ContentDialogStyle.NORMAL).ShowAsync();
//登录成功后放入用户信息
localSettings.Values["userIdentity"] = result[0].userId;
Frame.Navigate(typeof(MainPage));
}
else
{
await ContentDialogTemplateUtil.showContentDialog(SystemMessage.DialogCommonTitleMsg, SystemMessage.LoginFailedMsg, true, false, SystemMessage.DialogButtonByOkValueMsg, string.Empty, ContentDialogStyle.NORMAL).ShowAsync();
}
}
/// <summary>
/// 初始化主页数据的方法
/// </summary>
public async void InitMainPageDatas()
{
//使用导航缓存
NavigationCacheMode = Windows.UI.Xaml.Navigation.NavigationCacheMode.Disabled;
MainPageSplitViewItemEntity svItemLoginOrLogOff = new MainPageSplitViewItemEntity();
//判断用户是否登录过
string userIdentity = localSettings.Values["userIdentity"] as string;
//不为空则表示登录过
if (!string.IsNullOrEmpty(userIdentity))
{
svItemLoginOrLogOff.IconFont = "\ue603";
svItemLoginOrLogOff.SplitViewTitle = "退 出";
svItemLoginOrLogOff.FontFamilyProperty = "ms-appx:///Assets/Resources/iconfont.ttf#iconfont";
}
else
{
svItemLoginOrLogOff.IconFont = "\ue604";
svItemLoginOrLogOff.SplitViewTitle = "登 录";
svItemLoginOrLogOff.FontFamilyProperty = "ms-appx:///Assets/Resources/iconfont.ttf#iconfont";
}
MainPageSplitViewItemEntity svItemRegister = new MainPageSplitViewItemEntity();
svItemRegister.IconFont = "\ue605";
svItemRegister.SplitViewTitle = "注 册";
svItemRegister.FontFamilyProperty = "ms-appx:///Assets/Resources/iconfont.ttf#iconfont";
splitViewListItems.ItemsSource = null;
svModel.Add(svItemLoginOrLogOff);
svModel.Add(svItemRegister);
splitViewListItems.ItemsSource = svModel;
try
{
LoadInitData = true;
articlesModel = await HTTPRequestHelper <ArticlesEntity> .requestAndResponseCollections(MobileInterfaceFactory.GET_ALL_ARTICLES_INFO, "{\"paramJsonDatas\":" + pageIndex + "}");
mainPageList.ItemsSource = articlesModel;
progressOfInitFirstDatas.Visibility = Visibility.Collapsed;
}
catch (HttpRequestException requestEx)
{
//初始化失败计数+1
initDataFailedCount += 1;
//异常之后再次请求
InitMainPageDatas();
//如果请求次数超出2次，说明不是MySQL超时自动关闭连接的问题而是其他问题，弹出消息框
if (initDataFailedCount > 2)
{
await ContentDialogTemplateUtil.showContentDialog(SystemMessage.DialogCommonTitleMsg + "HttpRequestException", requestEx.Message, true, false, SystemMessage.DialogButtonByOkValueMsg, String.Empty, ContentDialogStyle.NORMAL).ShowAsync();
}
}
catch (Exception ex)
{
//异常之后再次请求
InitMainPageDatas();
await ContentDialogTemplateUtil.showContentDialog(SystemMessage.DialogCommonTitleMsg + "Exception", ex.Message, true, false, SystemMessage.DialogButtonByOkValueMsg, String.Empty, ContentDialogStyle.NORMAL).ShowAsync();
}
}