无法访问API-29中的外部存储空间

Question

以下代码在较低的API-29中效果很好。但是使用API​​-29时会出现此错误。

public void persistFile(byte[] bytes, String path, String fileName) throws IOException {
    OutputStream fOut = null;
    File picDirectory = new File(path);
    File file = new File(path, fileName); 
    fOut = new FileOutputStream(file);
    fOut.write(bytes); 
    fOut.flush();  
    fOut.close();  
}

Answer 1

可以在清单应用程序标签中使用添加android:requestLegacyExternalStorage="true"。

<manifest ... >
  <!-- This attribute is "false" by default on apps targeting
       Android 10 or higher. -->
  <application android:requestLegacyExternalStorage="true" ... >
    ...
  </application>
</manifest>