如何在android studio的内部存储中为andoidx创建文件夹?
问题描述：
如何在 android studio 的内部存储中创建文件夹并在所有 android 版本中工作，直到 android Q.
how to create folder in internal storage in android studio and works in all android versions till android Q.
答
AndroidManifest.xml
在清单文件中添加权限
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
为应用添加请求遗留外部存储
add request legacy external storage for application
<application
android:requestLegacyExternalStorage="true">
</application>
MainActivity.this
添加此代码 MainActivity.this 文件
add this code MainActivity.this file
File f = new File(Environment.getExternalStorageDirectory(), "My folder");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
try {
Files.createDirectory(Paths.get(f.getAbsolutePath()));
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(), e.getLocalizedMessage(), Toast.LENGTH_LONG).show();
}
} else {
f.mkdir();
f.mkdirs();
Toast.makeText(getApplicationContext(), f.getPath(), Toast.LENGTH_LONG).show();
}