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https://github.com/openharmony/multimedia_ringtone_library.git
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- [Repositories Involved](#section1533973044317)
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## Introduction<a name="section1158716411637"></a>
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**Figures 1** ringtonelibrary architecture
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**Figures 1** RingtoneLibrary architecture
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**ringtone\_library** repository provides a set of easy-to-use APIs for setting and getting ringtone information.
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RingtoneLibrary APIs can only be used internally, not exposed to public application currently.
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RingtoneLibrary APIs can only be used internally.
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The various capabilities can be categorized as below:
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- Read ringtone information
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-7
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- [相关仓](#section1533973044317)
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## 简介<a name="section1158716411637"></a>
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**图1** ringtonelibrary组件架构图
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**图1** RingtoneLibrary组件架构图
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**ringtone\_library** 仓库提供了一系列易用的接口用于设定及获取系统铃音信息。
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RingtoneLibrary接口暂不对外部应用开放, 仅内部使用。
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RingtoneLibrary接口仅内部使用。
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支持能力列举如下:
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- 读取铃音内容
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@@ -18,7 +18,7 @@ RingtoneLibrary接口暂不对外部应用开放, 仅内部使用。
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- 扫描系统预制铃音目录
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## 目录<a name="section161941989596"></a>
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仓目录结构如下:
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仓库目录结构如下:
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```
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/foundation/multimedia/ringtone_library/ # 铃音库组件代码
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├── frameworks # 框架代码
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## 使用说明<a name="usage-guidelines"></a>
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### 概述
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提供铃音列表的增、删、改、查等接口
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接口参数主要有对象类型的Uri、DataSharePredicates和DataShareValuesBucket等
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提供铃音列表的增、删、改、查等接口,
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接口参数主要有对象类型的Uri、DataSharePredicates和DataShareValuesBucket等。
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使用接口功能前,需要先获取DataShareHelper
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```cpp
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@@ -158,8 +158,8 @@ std::shared_ptr<DataShare::DataShareHelper> datashareHelper = DataShare::DataSha
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| -------- | -------- | ---------------------- | ---- | ------------------------------ |
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| uri | 只读 | Uri& | 是 | 具体操作的uri |
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| condition | 只读 | DataSharePredicates& | 是 | 查询条件 |
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| resultColumns | 只读 | std::vector<std::string>& | 是 | 需要查询的列字段名称 |
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| businessError | 只读 | DatashareBusinessError& | 是 | 异常代码 |
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| resultColumns | 读写 | std::vector<std::string>& | 是 | 需要查询的列字段名称 |
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| businessError | 读写 | DatashareBusinessError& | 是 | 异常代码 |
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返回值为ResultSet结果集
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