dylan / gist:0eecfdac494842caac1b27138c238f1b

要实现一个完整的 Harmattan 应用，涵盖**预览页面**、**登录页面**、**主时间线页面**，并且包含导航逻辑和 API 调用，可以基于 QML 和 C++ 代码进行。以下是一个基于你的需求的完整项目结构及其代码示例。 ### 项目结构 - `main.cpp`: 应用入口，初始化 QML 环境和 C++ 类。 - `YourApp.qml`: 主要的 UI 界面，包括预览、登录和主时间线页面。 - `YourCppClass.cpp` / `YourCppClass.h`: C++ 类，用于处理 API 请求和数据通信。 --- ### 1. `main.cpp` - 应用入口 ```cpp #include <QtGui/QApplication> #include <QtDeclarative> #include "YourCppClass.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); QDeclarativeView view; YourCppClass yourCppClassInstance; view.rootContext()->setContextProperty("yourCppClassInstance", &yourCppClassInstance); view.setSource(QUrl::fromLocalFile("qml/YourApp.qml")); view.show(); return app.exec(); } ``` --- ### 2. `YourCppClass.h` - C++ 类定义 ```cpp #ifndef YOURCPPCLASS_H #define YOURCPPCLASS_H #include <QObject> #include <QtNetwork> class YourCppClass : public QObject { Q_OBJECT public: explicit YourCppClass(QObject *parent = nullptr); Q_INVOKABLE void loadPublicTimeline(const QString &instanceUrl); Q_INVOKABLE void login(const QString &instanceUrl, const QString &username, const QString &password); Q_INVOKABLE void loadHomeTimeline(); signals: void publicTimelineLoaded(const QVariantList &timelineData); void loginSuccess(); void homeTimelineLoaded(const QVariantList &timelineData); private slots: void onPublicTimelineReceived(); void onLoginFinished(); void onHomeTimelineReceived(); private: QNetworkAccessManager *networkManager; QString accessToken; }; #endif // YOURCPPCLASS_H ``` --- ### 3. `YourCppClass.cpp` - C++ 类实现 ```cpp #include "YourCppClass.h" #include <QJsonDocument> #include <QJsonArray> #include <QJsonObject> YourCppClass::YourCppClass(QObject *parent) : QObject(parent) { networkManager = new QNetworkAccessManager(this); } void YourCppClass::loadPublicTimeline(const QString &instanceUrl) { QUrl url(instanceUrl + "/api/v1/timelines/public"); QNetworkRequest request(url); QNetworkReply *reply = networkManager->get(request); connect(reply, &QNetworkReply::finished, this, &YourCppClass::onPublicTimelineReceived); } void YourCppClass::onPublicTimelineReceived() { QNetworkReply *reply = qobject_cast<QNetworkReply*>(sender()); if (reply) { QByteArray response = reply->readAll(); QJsonDocument jsonDoc = QJsonDocument::fromJson(response); QJsonArray jsonArray = jsonDoc.array(); QVariantList timelineData; for (const QJsonValue &value : jsonArray) { QJsonObject obj = value.toObject(); QVariantMap post; post["username"] = obj["account"].toObject()["username"].toString(); post["content"] = obj["content"].toString(); timelineData.append(post); } emit publicTimelineLoaded(timelineData); } } void YourCppClass::login(const QString &instanceUrl, const QString &username, const QString &password) { QUrl url(instanceUrl + "/oauth/token"); QNetworkRequest request(url); request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded"); QByteArray data; data.append("username=" + username + "&password=" + password); QNetworkReply *reply = networkManager->post(request, data); connect(reply, &QNetworkReply::finished, this, &YourCppClass::onLoginFinished); } void YourCppClass::onLoginFinished() { QNetworkReply *reply = qobject_cast<QNetworkReply*>(sender()); if (reply) { QByteArray response = reply->readAll(); QJsonDocument jsonDoc = QJsonDocument::fromJson(response); QJsonObject jsonObj = jsonDoc.object(); accessToken = jsonObj["access_token"].toString(); emit loginSuccess(); } } void YourCppClass::loadHomeTimeline() { QUrl url("https://mastodon.example.com/api/v1/timelines/home"); QNetworkRequest request(url); request.setRawHeader("Authorization", "Bearer " + accessToken.toUtf8()); QNetworkReply *reply = networkManager->get(request); connect(reply, &QNetworkReply::finished, this, &YourCppClass::onHomeTimelineReceived); } void YourCppClass::onHomeTimelineReceived() { QNetworkReply *reply = qobject_cast<QNetworkReply*>(sender()); if (reply) { QByteArray response = reply->readAll(); QJsonDocument jsonDoc = QJsonDocument::fromJson(response); QJsonArray jsonArray = jsonDoc.array(); QVariantList timelineData; for (const QJsonValue &value : jsonArray) { QJsonObject obj = value.toObject(); QVariantMap post; post["username"] = obj["account"].toObject()["username"].toString(); post["content"] = obj["content"].toString(); timelineData.append(post); } emit homeTimelineLoaded(timelineData); } } ``` --- ### 4. `YourApp.qml` - QML UI 文件 ```qml import QtQuick 1.1 import com.nokia.meego 1.0 PageStackWindow { id: appWindow initialPage: previewPage Component { id: previewPage Page { title: "Public Timeline Preview" Column { spacing: 10 width: parent.width TextField { id: instanceUrl placeholderText: "Enter instance URL" onTextChanged: { yourCppClassInstance.loadPublicTimeline(instanceUrl.text); } } ListView { id: publicTimeline model: publicTimelineModel delegate: Item { width: parent.width height: 80 Column { Text { text: model.username } Text { text: model.content } } } OpacityMask { anchors.fill: parent maskSource: Gradient { GradientStop { position: 0.8; color: "transparent" } GradientStop { position: 1.0; color: "black" } } } } Button { text: "Login" onClicked: { appWindow.pageStack.push(loginPage); } } } ListModel { id: publicTimelineModel } Connections { target: yourCppClassInstance onPublicTimelineLoaded: { publicTimelineModel.clear(); for (var i = 0; i < timelineData.length; i++) { publicTimelineModel.append(timelineData[i]); } } } } } Component { id: loginPage Page { title: "Login" Column { TextField { id: username; placeholderText: "Username" } TextField { id: password; placeholderText: "Password"; echoMode: TextInput.Password } Button { text: "Login" onClicked: { yourCppClassInstance.login(instanceUrl.text, username.text, password.text); } } } Connections { target: yourCppClassInstance onLoginSuccess: { appWindow.pageStack.push(mainTimelinePage); } } } } Component { id: mainTimelinePage Page { title: "Home Timeline" Column { ListView { id: homeTimeline model: homeTimelineModel delegate: Item { width: parent.width height: 80 Column { Text { text: model.username } Text { text: model.content } } } } Row { anchors.bottom: parent.bottom Button { text: "Home" } Button { text: "Notifications" } Button { text: "Account" } } } Connections { target: yourCppClassInstance onHomeTimelineLoaded: { homeTimelineModel.clear(); for (var i = 0; i < timelineData.length; i++) { homeTimelineModel.append(timelineData[i]); } } } } } } ``` --- ### 5. 总结 这个完整的应用包含了预览页面、登录页面、主时间线页面，支持实例公共时间线的查看、用户登录，以及主时间线的显示。你可以根据实际情况调整 API 请求、页面布局以及样式。 主要功能： 1. **预览页面**：输入实例地址并查看公共时间线，带有渐隐效果。 2. **登录页面**：用户输入用户名和密码，执行 Mastodon 实例的登录验证。 3. **主时间线页面**：显示用户的主时间线，并有底部导航栏切换到其他页面（通知、个人账户等）。