android - Adding data while parsing into next activity -

i doing app, takes name , phone number in first activity. should save values , parse next activity , vice versa.

eg:

in actvity 1 kept name1 & age1 --> save , in same activity again inserted name2 & age2--> save

and when click display should display both values saved in activity.

here mentioned 2 cases, may vary 10 or 20 or n.

kindly, provide on way can make it?

if want pass data between activities can use below cases :

case : 1

you can pass data between activites through intent.

in current activity, create new intent:

intent = new intent(getapplicationcontext(), newactivity.class); i.putextra("variable_key","value"); startactivity(i); 

then in new activity, retrieve values:

bundle extras = getintent().getextras(); if (extras != null) {     string value = extras.getstring("variable_key"); } 

this passing data between activities.

case : 2

you can make class of static , public arraylist's getter , setter.

example :

class getterarraylist{  private static map<string, arraylist<string>> arraylist;  public static init(){     if(arraylist== null)         arraylist= new hashmap<string, arraylist<string>>(); }  public static arraylist<string> getstringlist(string key){     return arraylist.get(key); }  public static void putstringlist(arraylist<string> value, string key){     arraylist.put(key, value); } } 

now initialize arraylist class:

getterarraylist.init(); 

now can add value in arraylist below :

arraylist<string> listnew = new arraylist<string>(); listnew .add("your data"); getterarraylist.putstringlist(listnew , "newlist"); 

and can arraylist in class key.

for(string s:getterarraylist.getstringlist("newlist")){  log.d("my list",s);  } 

case : 3

you can use shared preferences passing data between activities .

this link shared preferences.

but here trailor.

this how can set data

 sharedpreferences settings = getsharedpreferences("prefs", mode_private);     sharedpreferences.editor prefeditor = settings.edit();     prefeditor.putstring("string_preference", "some_string");     prefeditor.putint("int_preference", 18);     prefeditor.commit();  

and how can data :

sharedpreferences prefs = getsharedpreferences("prefs", mode_private);     string string_preference= prefs.getstring("string_preference", "no name defined");//"no name defined" default value.   int int_preference= prefs.getint("int_preference", 0); //0 default value. 

case : 4

if want pass multiple data can use local storage sqlite database.

here link reference .

or

how save data on device, whether it's temporary files, downloaded app assets, user media, structured data, or else. can see more here.(see saving data section)

save them sqlite database.