How to write UTF-8 or Base64 data into a file (jpg/doc/pdf) on local storage(sdcard) in Phonegap

Question

I am getting byte array like var byteArr=[12,-123,43,99, ...] from API, Then I am converting it into UTF-8 String by

     var utf8_str = String.fromCharCode.appl         


        

Answer 1

I have found solution to create file by byte array in Phonegap.

In phonegap, Text and Binary data are supported for Android and iOS to write into file. So I have convert BYTE array to BINARY array, then write by FileWriter.

 var byteArr=[12,-123,43,99, ...] ;
 var UTF8_STR = new Uint8Array(byteArr);  // Convert to UTF-8...                
 var BINARY_ARR=UTF8_STR.buffer;         // Convert to buffer...    

Then pass 'BINARY_ARR' to FileWriter to write in file.

 function gotFileWriter(writer) {
     writer.onwriteend = function(evt) {
     console.log("File write successfully....");        
   };
   writer.write(BINARY_ARR);   
 }

Have a nice day.. :)