Android
(219)STM32 蓝牙模块对应的 Android 列表页源码梳理
## BlueST SDK
> BlueST is a multi-platform library (Android and iOS supported) that permits easy access to the data e
Android API 无法获取蓝牙 BLE Attribute Handle 值
最近写了一个 [Android APP 用于快速配置蓝牙网关（已上架 Google Play）](https://play.google.com/store/apps/details?id=com.sunzhongwei.ble)，但是基本
BLE Scan: Privacy policy
Welcome to the BLE Scan app for Android!
This is an Android app developed by Zhongwei Sun. The app is available on Go
Material dialogs MaterialAlertDialogBuilder 中添加文本编辑框
## setView
官方 Material Design 3 的文档中并没有详细的 MaterialAlertDialogBuilder 使用说明。
https://github.com/material-components/m
Android 哪些操作应该放到 ViewModel 中
## 权限申请是否应该放到 ViewModel 中
有此疑问的原因是，我看到权限相关的操作，需要传入 Context 参数。
```
private fun isLocationPermissionGranted(): Boole
Android RecyclerView Adapter ViewHolder 中获取 Activity
之前记录过[如何在 Fragment 中获取父级 Activity](https://www.sunzhongwei.com/call-activity-method-in-android-fragments)，这次发现需要在 Recycl
Android 使用 LiveData 显示实时状态变化
例如加载数据时, 显示转圈提示。或者显示 connecting / finding data ...
也可以加上动态图标：
https://github.com/material-components/material-comp
Android RecyclerView 嵌套显示 BLE 蓝牙 Service 的 Characteristic 子项
例如，外层 RecyclerView 显示的是一个 BLE 蓝牙设备的 Service 列表;
内存嵌套的 RecyclerView 显示的各个 Service 所包含的 Characteristic 特性列表。
点击展开 Serv
Android Kotlin 中获取 context 的几种方法
## Fragment 中获取 context
调用 getActivity 获取父级 activity 的 context，
Kotlin 中简化为 fragment.activity:
例如：
```
Toast.ma
Android Primary/Detail Flow 模板的 fragment 点击跳转逻辑
## TODO
- 看懂原有 primary/detail 模板的跳转逻辑
- 新建 snippet
## list fragment
```
override fun onViewCreated(view: View,