android-storage

问题 I want total internal space available in Phone but in this code getInternalFreeSpace returns correct value but getInternalStorageSpace doesn't return exact available space because of not counting ANDROID OS Size. Like my phone has 64GB but this code returns 51.6GB. The Only missing is 12.40 GB i.e. ANDROID OS size, 51.6GB + 12.40 = 64.00 fun getInternalStorageSpace(): Float{ val statsFs = StatFs(Environment.getDataDirectory().absolutePath) val sizeKB = statsFs.blockCountLong.toFloat() *

问题 Read that Android 11 has scoped storage, but I can't find any information, how can I create and use folder in /storage/emulated/0/ ? Old methods works only on api 29 and below :( 回答1: On Android 11 the restrictions in Android 10 concerning access to external storage are much less. Environment.getExternalStorageDirectory() is readable again and Environment.getExternalStoragePublicDirectory(...) is writable for folders like Environment.DIRECTORY_DOCUMENTS and so on. The Android OS is very picky

问题 Read that Android 11 has scoped storage, but I can't find any information, how can I create and use folder in /storage/emulated/0/ ? Old methods works only on api 29 and below :( 回答1: On Android 11 the restrictions in Android 10 concerning access to external storage are much less. Environment.getExternalStorageDirectory() is readable again and Environment.getExternalStoragePublicDirectory(...) is writable for folders like Environment.DIRECTORY_DOCUMENTS and so on. The Android OS is very picky

来源： https://stackoverflow.com/questions/58255532/how-to-set-a-file-as-a-ringtone-for-android-10

来源： https://stackoverflow.com/questions/58255532/how-to-set-a-file-as-a-ringtone-for-android-10

来源： https://stackoverflow.com/questions/60394507/xamarin-forms-save-file-pdf-in-local-storage-and-open-with-the-default-viewer

来源： https://stackoverflow.com/questions/60026528/how-to-open-saf-storage-access-framework-to-select-storage

来源： https://stackoverflow.com/questions/63147999/how-to-read-all-the-files-in-a-folder-with-mediatore-api-in-android-q-10

来源： https://stackoverflow.com/questions/63147999/how-to-read-all-the-files-in-a-folder-with-mediatore-api-in-android-q-10

问题 Although having read and write permissions I am unable to access sdcard in Android 10. This was my approach to list all directory. File root = new File("/mnt/sdcard/"); File[] subFiles = root.listFiles(); for(File file : subFiles) { if(file.isDirectory()) { String str = text.getText().toString() + "\n"; str+=file.getAbsolutePath(); text.setText(str); } } If I use /mnt/ instead of /mnt/sdcard/ I can see sdcard directory is listed in there but when I use /mnt/sdcard/ , subFiles is null . I don