Parse Json string : JSON « Development « Android

1. Android
2. Development
3. JSON

Parse Json string

   



package app.test;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import org.json.JSONObject;
import org.json.JSONException;

public class Test extends Activity {
    private static final String JSON_STRING =
        "{\"person\":{\"name\":\"A\",\"age\":30,\"children\":[{\"name\":\"B\",\"age\":5}," + "\"name\":\"C\",\"age\":7},{\"name\":\"D\",\"age\":9}]}}";

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        TextView line1 = (TextView)findViewById(R.id.line1);
        TextView line2 = (TextView)findViewById(R.id.line2);
        TextView line3 = (TextView)findViewById(R.id.line3);
        try {
            JSONObject person = (new JSONObject(JSON_STRING)).getJSONObject("person");
            String name = person.getString("name");
            line1.setText("This person's name is " + name);
            line2.setText(name + " is " + person.getInt("age") + " years old.");
            line3.setText(name + " has " + person.getJSONArray("children").length()
                + " children.");
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }
}
//main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="vertical">
  <TextView
    android:id="@+id/line1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
  />
  <TextView
    android:id="@+id/line2"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
  />
  <TextView
    android:id="@+id/line3"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"T
  />
</LinearLayout>

   
    
    
  

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