# NotificationTest

**Repository Path**: android-repositivity/notification-test

## Basic Information

- **Project Name**: NotificationTest
- **Description**: 第9章 通知
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2025-06-12
- **Last Updated**: 2025-06-13

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# NotificationTest
测试通知功能

# Android 应用文件存储目录
## 内部存储空间中的应用私有目录 
*     context.getFilesDir() // /data/data/<包名>
*     context.getCacheDir()
*     context.deleteFile()
*     context.fileList()
*     Environment.getDataDirectory() // /data/data

## 外部存储空间中的应用私有目录 
*       context.getExternalFilesDir()   // /storage/emulated/0/Android/data/<包名>
*     context.getExternalCacheDir()   // /storage/emulated/0/Android/data/<包名>/cache
*     Environment.getExternalStorageDirectory()  // /storage/emulated/0/Android/data/

## 外部存储空间中的公共目录

*   Environment.getExternalStoragePublicDirectory(String type);
    
  * Envinonment 类提供诸多 type 参数的常量，比如：

    DIRECTORY_MUSIC：/storage/emulated/0/Music
    DIRECTORY_MOVIES：/storage/emulated/0/Movies
    DIRECTORY_PICTURES：/storage/emulated/0/Pictures
    DIRECTORY_DOWNLOADS：/storage/emulated/0/Download

# 
`<provider
android:name="androidx.core.content.FileProvider"
android:authorities="com.example.notificationtest.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>`