Renan Willamy Renan Willamy - 3 months ago 20x
Android Question

Can't create a directory on /storage/emulated/0 on emulator

I'm trying to create a directory on my android emulator but I can't do it, I already have the permission on manifest write_storage, and I get no erros but mkdir() return false, I verify if external storage is writtable too and it is, it works on physical devices my code:

/// Cria uma nova pasta para colocar o backup
File direct = new File(Environment.getExternalStorageDirectory(),
"/Financas RW Backup");
try {

if (!direct.exists()) {
if(isExternalStorageWritable()&&isExternalStorageReadable()) {
if( direct.mkdir()) {
fachada.showMessage(ExportImportDB.this," Criado");
fachada.showMessage(ExportImportDB.this," Não Criado");
} catch (Exception e) {
fachada.showMessage(this, e.toString());


You have to options:

  • Downgrade your compileSdkVersion and targetSdkVersion to lower version in your build.gradle
  • Request write permission at runtime is required on Android 6 .

I personally don't advice the first one. For more info check:

Hope this helps!!