Android FileNotFound canread and exists false media whatsapp files

I'm trying to read a file that exists, but I can not. Thanks!

File f = new File("/mnt/sdcard/WhatsApp/Media/WhatsApp Images/IMG-20180628-WA0000.jpg");

File sdDir = Environment.getExternalStorageDirectory();
Log.w("Whatsapp","#SDDIR CANREAD? "+ sdDir.canRead() +" PATH: "+ sdDir.getAbsolutePath());

f.setReadable(true,false);
Log.w("Whatsapp","#FILE: "+ f.getName() +" l:"+ f.length() +" exists:"+ f.exists() +" canRead:"+ f.canRead() +" PATH: "+ f.getPath() +" ABSOLUTE: "+ f.getAbsolutePath());


LOG

#SDDIR CANREAD? false PATH: /storage/emulated/0
#FILE: IMG-20180628-WA0000.jpg l:0 exists:false canRead:false PATH: /mnt/sdcard/WhatsApp/Media/WhatsApp Images/IMG-20180628-WA0000.jpg ABSOLUTE: /mnt/sdcard/WhatsApp/Media/WhatsApp Images/IMG-20180628-WA0000.jpg


AndroidManifest Permissions

<uses-permission android:name="ANDROID.PERMISSION.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="ANDROID.PERMISSION.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="ANDROID.PERMISSION.MANAGE_DOCUMENTS" />


2 Answers
2

First, you do not have arbitrary read-write access to removable storage.

Second, most things in Android are case-sensitive. So, your <uses-permission> elements will not work.

<uses-permission>

Third, you cannot hold the MANAGE_DOCUMENTS permission, as that is not available for ordinary apps.

MANAGE_DOCUMENTS

So you can fix your manifest by replacing your existing <uses-permission> elements with:

<uses-permission>

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>


However, you still may not have access to that particular file.

Works!

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>


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