Listview显示完美但listview onclick不起作用？

Question

 final ListView listView= (ListView) findViewById(R.id.item);
        ViewGroup headerView=(ViewGroup)getLayoutInflater().inflate(R.layout.header,listView,false);
        listView.addHeaderView(headerView);
        contactAdapter = new ContactAdapter(this,R.layout.row_layout);
        listView.setAdapter(contactAdapter);
    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            Intent intent = new Intent(News.this, details_Activity.class);
            String json_string = (String) listView.getItemAtPosition(position);
            intent.putExtra("name", json_string);
            startActivity(intent);
        }
    });


    json_string = getIntent().getExtras().getString("json");
    try {
        jsonObject = new JSONObject(json_string);
        jsonArray = jsonObject.getJSONArray("server_response");
        int count = 0;
        String name,email,mobile;
        while (count<jsonArray.length()) {
            JSONObject JO = jsonArray.getJSONObject(count);
            name = JO.getString("name");
            email = JO.getString("email");
            mobile = JO.getString("mobile");

            Contacts contacts = new Contacts(name,email,mobile);
            contactAdapter.add(contacts);
            count++;

        }


    } catch (JSONException e) {
        e.printStackTrace();
    }


}

Answer 1

从我在你的代码中看到的你传递意图密钥为 ＆＃34;名称＆＃34;

   intent.putExtra("name", json_string);

并且在请求您使用错误的密钥＆＃34; json＆＃34;

时

json_string = getIntent().getExtras().getString("json");

相反，你应该使用

json_string = getIntent().getExtras().getString("name");