title: Permission is ALLOWED but not WRITE Android AngularJS with Ionic
body: <p>Hello everybody I have a problem a long time and decided to post , on some devices I can not write anything , this happens especially in mobile phone android(4.1-4.4) that does not have sdcard.
  Some phones usually work ( especially with android 5.0 ) with or without SDCARD .</p>
  
  <p>My routine is: 
  CHECKS(READ) <strong>localStorage</strong> -></p>
  
  <p><strong>IF OK</strong> : AUTH AUTOMATIC -> UPDATE LOCALSTORAGE -> GO HOME PAGE.</p>
  
  <p><strong>ELSE</strong> : USERS INFORMATION LOGIN AND PASSWORD -> AUTH -> SAVE LOCALSTORAGE -> GO HOME PAGE.</p>
  
  <p>ALREADY TRIED USE : SQLITE AND FILE.</p>
  
  <p>but in some phones especially with android ( 4.1 - 4.4 and without SDCARD ) he finds no content in LocalStorage , so every time the User open the app it needs to inform login and password.</p>
  
  <p>OBS:
  1. I checked the AndroidManifest and i HAVE WRITE_EXTERNAL_STORAGE and READ.</p>
  
  <ol start="2">
  <li>when installed on an emulator android 4.1 without SDCARD , I encounter the following error in CMD " rm failed for -f , Read only file system"</li>
  </ol>
  
  <p>My permissions</p>
  
  <ul>
  <li>whitelist</li>
  <li>camera</li>
  <li>media-capture</li>
  <li>device</li>
  <li>statusbar</li>
  <li>file</li>
  <li>file-transfer</li>
  <li>imagepicker</li>
  <li>media</li>
  <li>network-information</li>
  <li>file-opener2</li>
  <li>sqlite-storage</li>
  <li>ms-adal</li>
  <li>x-toast</li>
  <li>socialsharing</li>
  </ul>
  
  <p>Thank you in advance</p>