title: saveToPhotoAlbum completely ignored on both Android and iOS
body: <p>In my ionic 4 app, camera is working fine taking pictures and uploading to a remote server. I use the plugin also to get images already in the gallery on another page, and it works too.
  The only thing I can't manage to solve is that pictures that are taken while using the app with the camera plugin aren't saved in the Photo Reel or in any other album, despite the fact that saveToPhotoAlbum is set to true</p>
  
  <p>This is the part of the code with the cameraOptions. I use different DestinationTypes based on the platform</p>
  
  <pre class="lang-js prettyprint-override"><code>        var uri_type;
          if (this.platform.is('android')) { uri_type: this.camera.DestinationType.FILE_URI }
              if (this.platform.is('ios')) { uri_type: this.camera.DestinationType.NATIVE_URI }
                  // Testo con un singolo metodo, da provare su iphone se funziona
              //uri_type = this.camera.DestinationType.FILE_URI; // Metodo sicuramente ok per android
  
              const options: CameraOptions = {
                  quality: 100,
                  destinationType: uri_type,
                  encodingType: this.camera.EncodingType.JPEG,
                  mediaType: this.camera.MediaType.PICTURE,
                  saveToPhotoAlbum: true,
              }   
  </code></pre>
  
  <p>This is the code I use to take the actual picture and upload to remote file (as stated, it works fine)</p>
  
  <pre class="lang-js prettyprint-override"><code>            this.camera.getPicture(options).then( res =&gt; {
  
                  // Recuperp il path dal parametro "res"
                  let path:string = res.toString();
  
                  // Estraggo il nome e il percorso del file
                  var currentName = path.substr(path.lastIndexOf('/') + 1);
                  var correctPath = path.substr(0, path.lastIndexOf('/') + 1);
  
                  if ( CONFIG.DEV == 1) { 
                      let datetime = new Date();
                      console.log('[objects-dashboard] @ ' + datetime.toISOString() + ' picture path: ');
                      console.log(path);
                  }
  
                  // Leggo il contenuto in un buffer
                  //this.file.readAsArrayBuffer(correctPath.toString(), currentName)
                  //this.file.readAsDataURL(correctPath.toString(), currentName)
                  this.file.readAsArrayBuffer(correctPath.toString(), currentName)
                  .then( res =&gt; {
  
                      // E uso il contenuto per creare un blob con il binario del file
                      let blob = new Blob([res], {type: "image/jpeg"});
                      if ( CONFIG.DEV == 1) { 
                          let datetime = new Date();
                          console.log('[objects-dashboard] @ ' + datetime.toISOString() + 'data blob: ');
                          console.log(blob);
                      }
                      // invoco il metodo per caricare il file
                      this.uploadFile(blob, currentName)
  
                  });
  </code></pre>
  
  <p>According to cordova plugin docs, the option saveToPhotoAlbum should save the picture take automatically into the photo gallery of the phone using the default album for both Android and iOS. But nothing happens.</p>
  
  <p>Don't know if the info can be useful, but this is the list of relevant plugins:</p>
  
  <ul>
  <li>cordova-plugin-camera 4.0.3 "Camera" </li>
  <li>cordova-plugin-device 2.0.2 "Device" </li>
  <li>cordova-plugin-file 6.0.1 "File"</li>
  <li>cordova-plugin-file-transfer 1.7.1 "File Transfer"</li>
  </ul>
  
  <p>Thanks in advance for any heads-up</p>