java - (Android)How to get data from JSON to show on listview -

this json data

{     "success": "1",     "results": [         {             "type": "1.popmusic",             "posts": [                 {                     "music": "1.aaa"                 },                 {                     "music": "2.bbb"                 }             ]         }     ] } 

i need click kind of music such click "popmusic" on listview , then,intent new activity show music in popmusic ,from json have show "1.aaa" , "2.bbb" on listview.

i can't "posts" json.how can it.

this blog1 class

public class blog1 {     string success;     list<post> results;     public list<post> getresults() {         return results;     }  } 

this post1 class

public class post1 { string name; public string getname() {     return name; }  public string getauthor() {     return author; }  // getter , setter 

this main class

  private void showdata(string jsonstring) {         gson gson = new gson();         blog1 blog = gson.fromjson(jsonstring, blog1.class);         list<post> results = blog.getresults();          madapter = new customadapter1(this, results);         mlistview.setadapter(madapter);   } 

you can use in build android json library

refer how json array values in android?

refer android json array nested in array

first need results

jsonarray json2 = json.getjsonarray("results"); 

then loop inside ( assuming 0 first element )

jsonobject json3 = json2.getjsonobject(0); 

then need posts

jsonarray json4 = json3.getjsonarray("posts"); 

then gain can loop inside json4

--- edit ---

i see using gson class structure should be

public class blog {     string success;     list<result> results;     public list<result> getresults() {         return results;     } }  public class result {    string type;    public string gettype() {        return type;    }    list<post> posts;    public list<post> getposts() {         return posts;    } }  public class post {    string music;    public string getmusic() {        return music;    } } 

in main code

blog blog = gson.fromjson(jsonstring, blog.class); //i assuming 0th item both blog.getresults().get(0).getposts().get(0).getmusic(); 

if constructing custom adapter then, assuming going show posts 1 blog entry can posts as

list<post> posts = blog.getresults().get(0).getposts() 

and pass posts custom adapter.

if have 2 adapters blog.getresults() first adapter clicking on item of adapter results.get(itemindex).getposts() second adapter