android failed to read all data from large json file -

i want read json file have large amount of data

my code

public string loadjsonfromasset() {         f = new file(environment.getexternalstoragedirectory().getpath() + "/contact backup/name.json");         string json = null;         try {             inputstream is;             = new bufferedinputstream(new fileinputstream(f));             int size = is.available();             byte[] buffer = new byte[size];             is.read(buffer);             is.close();             json = new string(buffer, "utf-8");         } catch (ioexception ex) {             ex.printstacktrace();             return null;         }         return json;     }  

in logcat, shows half json file readed.

any help?

do not read byte byte , read lind line using scanner class.

example

public string loadjsonfromasset() {    file = new file(environment.getexternalstoragedirectory().getpath() + "/contact backup/name.json");    final stringbuilder text = new stringbuilder();    try {          scanner sc = new scanner(file);          while (sc.hasnextline()) {             text.append(sc.nextline());          }         sc.close();     } catch (exception ex) {         ex.printstacktrace();     }    return text.tostring(); }