aggs1990的专栏

例如，如果应用程序只喜欢使用卫星定位，它提供了相当精确的室外定位，但可能会大量使用电力资源，则可以使用QGeoPositionInfoSourceSatellitePositioningMethods值调用此方法。最著名的定位方法之一是GPS（全球定位系统），这是一种公开可用的系统，使用从地球轨道卫星接收的无线电波信号来计算接收器的精确位置和时间。另一种流行的方法是“小区标识符定位”，它使用当前为接收设备服务的小区站点的小区标识符来计算其近似位置。NMEA是一种通用的基于文本的协议，用于指定导航数据。...

Extending QML - Default Property Example扩展QML-默认属性示例Default Property.默认属性。This example builds on:此示例基于：Extending QML - Inheritance and Coercion Example Extending QML - Object and List Property Types Example Extending QML - Adding Types Exampl

Extending QML - Methods Example扩展QML-方法示例Methods Support.方法支持。This example builds on:此示例基于：Extending QML - Inheritance and Coercion Example Extending QML - Object and List Property Types Example Extending QML - Adding Types ExampleThe Method

Extending QML - Inheritance and Coercion Example扩展QML-继承和强制示例C++ Inheritance and Coercion.C++继承和强制。This example builds on:此示例基于：Extending QML - Object and List Property Types Example Extending QML - Adding Types ExampleThe Inheritance and Coe

Extending QML - Extension Objects Example扩展QML-扩展对象示例Extension Objects.扩展对象。This example builds on:此示例基于：Extending QML - Adding Types ExampleShows how to useQML_EXTENDEDto provide anextension objectto aQLineEditwithout modifying or subcl...

Extending QML - Object and List Property Types Example扩展QML-对象和列表属性类型示例Exporting C++ Properties.导出C++属性。This example builds on:此示例基于：Extending QML - Adding Types ExampleThe Object and List Property Types example shows how to add object and lis

Extending QML - Adding Types Example扩展QML-添加类型示例Exporting C++ Classes.正在导出C++类。The Adding Types Example shows how to add a new object type,Person, to QML. ThePersontype can be used from QML like this:添加类型示例显示如何将新对象类型Person添加到QML。可以从QML中使用人员类型，...

Integrating QML and C++集成QML和C++QML applications often need to handle more advanced and performance-intensive tasks in C++. The most common and quickest way to do this is to expose the C++ class to the QML runtime, provided the C++ implementation is de

Important C++ Classes Provided By The Qt QML ModuleQt QML模块提供的重要C++类TheQt QMLmodule provides C++ classes which implement the QML framework. Clients can use these classes to interact with the QML run-time (for example, by injecting data or invoking me..

Writing QML Modules编写QML模块You can declare a QML module using theCMake QML Module APIto:​您可以使用CMake QML模块API声明QML模块，如下所示：Generateqmldirand*.qmltypes files. ​生成qmldir和*.qmltypes文件。 Register C++ types annotated withQML_ELEMENT. ​用QML_ELEMENT注...

Importing QML Document Directories导入QML文档目录A local directory of QML files can be imported without any additional setup or configuration. A remote directory of QML files can also be imported, but requires a directory listingqmldirfile to exist. A loca..

Module Definition qmldir Files模块定义qmldir文件There are two distinct types ofqmldirfiles:qmldir文件有两种不同的类型：QML document directory listing files 列出文件的QML文档目录 QML module definition files QML模块定义文件This documentation covers only the second form ofqml...

Overview - QML and C++ Integration概述-QML和C++集成QML is designed to be easily extensible through C++ code. The classes in theQt QMLmodule enable QML objects to be loaded and manipulated from C++, and the nature of QML engine's integration with Qt'smeta...

Connections QML TypeConnections QML类型Describes generalized connections to signals.More...描述与信号的通用连接。Import Statement: import QtQml List of all members, including inherited membersProperties属性enabled: bool ignoreUnknownSignals: bool t...

Binding QML TypeBinding QML类型Enables the arbitrary creation of property bindings.More...允许任意创建属性绑定。Import Statement: import QtQml List of all members, including inherited membersPropertiesdelayed: bool property: string restoreMode: en...

Qt QMLThe Qt QML module provides a framework for developing applications and libraries with theQML language. It defines and implements the language and engine infrastructure, and provides an API to enable application developers to extend the QML languag.