Forma correcta de solicitar el permiso WRITE_EXTERNAL_STORAGE

Haz todo lo posible por comprender el código correctamente antes de utilizarlo a tu proyecto si tdeseas aportar algo puedes comentarlo.

Solución:

Prueba esto,

private Context mContext=YourActivity.this;

private static final int REQUEST = 112;

if (Build.VERSION.SDK_INT >= 23) 
    String[] PERMISSIONS = android.Manifest.permission.WRITE_EXTERNAL_STORAGE;
    if (!hasPermissions(mContext, PERMISSIONS)) 
        ActivityCompat.requestPermissions((Activity) mContext, PERMISSIONS, REQUEST );
     else 
        //do here
    
 else 
     //do here

obtener el resultado de los permisos

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) 
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    switch (requestCode) 
        case REQUEST: 
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) 
                    //do here
             else 
                Toast.makeText(mContext, "The app was not allowed to write in your storage", Toast.LENGTH_LONG).show();
            
        
    

verificar permisos para malvavisco

private static boolean hasPermissions(Context context, String... permissions) 
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && context != null && permissions != null) 
        for (String permission : permissions) 
            if (ActivityCompat.checkSelfPermission(context, permission) != PackageManager.PERMISSION_GRANTED) 
                return false;
            
        
    
    return true;

Manifiesto

Si no desea verificar varios permisos a la vez, agregue el permiso en PERMISOS array me gusta:

String[] PERMISSIONS = android.Manifest.permission.WRITE_EXTERNAL_STORAGE,android.Manifest.permission.READ_EXTERNAL_STORAGE;

---

---

Utiliza Nuestro Buscador