Get file size

Ionic Framework ionic-v3
1

Hi every body,

Today i’m trying to get the size of a file which is located in my app folder. I tried to use

    window.resolveLocalFileSystemURL(myFileCompleteURL, function(fileEntry) {
        fileEntry.file(function(fileObj) {
          this.consoleLog += "fileObj.size : " + fileObj.size + "\r\n";
        },
        function(err){
          this.consoleLog += "err : " + err + "\r\n";
        });
    })

But it doesn’t work…No error, no result…I didn’t find anything else to get file size with ionic / cordova…Anyone got an idea ?

thanks :wink:

2

no error, no result : perhaps not called ?
did you put debugger; in it ?
what is there in the fileObj object?

3

The function seems to be not called…

import { Component } from '@angular/core';
import { NavController, NavParams } from 'ionic-angular';
import { Camera } from '@ionic-native/camera';
declare var window;

@Component({
  selector: 'page-photo',
  templateUrl: 'photo.html',
})
export class PhotoPage {

  constructor(public navCtrl: NavController, 
      public navParams: NavParams,
      private camera: Camera) {  }

  onTakePhoto(){
    this.camera.getPicture({
      quality: 100,
      targetWidth: 900,
      targetHeight: 600,
      destinationType: this.camera.DestinationType.FILE_URI,
      encodingType: this.camera.EncodingType.JPEG,
      mediaType: this.camera.MediaType.PICTURE,
      saveToPhotoAlbum: false,
      sourceType: this.camera.PictureSourceType.CAMERA
    }).then((imagedata) => {

      window.resolveLocalFileSystemURL(imagedata, function(fileEntry) {
        fileEntry.file(function(fileObj) {
         console.log("fileObj.size : " + fileObj.size);
        },
        function(err){
         console.log(err);
        });
    })

    })

  }

}
4

This is how I get the file size,

this.file.resolveLocalFilesystemUrl(fileUri).then(fileEntry => {
    fileEntry.getMetadata((metadata) => {
        console.log(metadata.size);//metadata.size is the size in bytes
        ....
    }
    ....
}
4 Likes
5

Thanks, it works !!!

6

This is my code… can you look into it…

But the code is not working in android… but it complies fine.

My code is here…
this.camera.getPicture(options).then((imageData) => {
let loading = this.loadingCtrl.create();
loading.present();

  this.file.resolveLocalFilesystemUrl(imageData).then((oneFile: any) => {
     this.file.readAsArrayBuffer(this.file.tempDirectory, oneFile.name).then(realFile => {
       let type = 'jpg';
       let newName = this.awsProvider.randomString(6) + new Date().getTime() + '.' + type;

       this.awsProvider.getSignedUploadRequest(newName, type).subscribe(data => {
         let reqUrl = data.signedRequest;

         this.awsProvider.uploadFile(reqUrl, realFile).subscribe(result => {
           this.awsProvider.getSignedFileRequest(newName).subscribe(res => {
             this.images.push({Key:name, url: res});
             loading.dismiss();
         });
       });
     });
  });      
});

});

Thanks in advance

7

Here is how to do that

this.file.resolveLocalFilesystemUrl(uri).then(fileEntry=> {
fileEntry.getMetadata(function(metaData) {
//console.log(JSON.stringify(metaData));
return ((metaData.size/1024)/1024); //SIZE IN MB
},
err =>{

        });
    },
    err =>{
        
    });
8

Just to complement your answer:

return this.file.resolveLocalFilesystemUrl(fileURI).then(fileEntry => {
	fileEntry.getMetadata((metadata) => {
		let fileSize = metadata.size/1024/1024 ;
		if (fileSize > 30) {
			// If size is bigger than 30MB, return
			console.log('file too big');
			return;
		}  
		console.log("metadata size in MB: ", metadata.size/1024/1024);		        
	});
});