本人创建了自定义ListAdapter，但是每行的单击事件不响应，应该实现的是点击之后获取这行的一些内容然后在另外的Activity中用。
public class MainActivity extends Activity {
// ArrayList of type "Person". We are making not a list of string, sondern eine list of persons
ArrayList<Person> arrayOfWebData = new ArrayList<Person>();
class Person{
public String person_id;
public String name;
public String birthday;
public String favorite_color;
public String profilbild;
}
// This is our new Adapter:
FancyAdapter aa = null;
// For each row we returned until we use the array to create our person obj
static ArrayList<String> resultRow;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new getJson().execute();
}
// Params,Progress,Result
private class getJson extends AsyncTask<Void,Void,Void>
{
@Override
protected Void doInBackground(Void... arg0) {
String result = "";
try{
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost("http://www.julianfuerderer.de/json.php");
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
InputStream is = httpEntity.getContent();
// Convert response to String:
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
String line = null;
while((line = reader.readLine()) != null){
sb.append(line+"\n");
}
is.close();
result = sb.toString();
}catch(Exception e){
e.printStackTrace();
}
}catch(Exception e){
e.printStackTrace();
}
// Parse JSON:
try{
JSONArray jArray = new JSONArray(result);
for(int i = 0;i < jArray.length();i++)
{
// Get our object, this is on persons data:
JSONObject json_data = jArray.getJSONObject(i);
// Create a new person:
Person resultRow = new Person();
// Set thats persons attributes:
resultRow.person_id = json_data.getString("id");
resultRow.name = json_data.getString("name");
resultRow.favorite_color = json_data.getString("favorite_color");
resultRow.birthday = json_data.getString("birthday");
resultRow.profilbild = json_data.getString("profilbild");
arrayOfWebData.add(resultRow);
}
}catch(Exception e){
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
populateListView();
}
}
public void populateListView()
{
final ListView myListView = (ListView)findViewById(R.id.myListView);
// initialite FancyAdapter object:
aa = new FancyAdapter();
myListView.setAdapter(aa);
// Click on ListView Row:
myListView.setOnItemClickListener(new AdapterView.OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3)
{
Object o = myListView.getItemAtPosition(position);
// Here i want have values of the clicked row,- like the name and/or id...,- but i get the following:
// Output o.toString(): com.example.customlistview.MainActivity$Person@41252310
Log.i("TEST", o.toString());
// Here i intend to Start a new Activity passing the "name" of the user (and/or id ...) to the new activity
}
});
}
class FancyAdapter extends ArrayAdapter<Person>
{
FancyAdapter(){
super(MainActivity.this,android.R.layout.simple_list_item_1,arrayOfWebData);
//imageLoader = new ImageLoader(MainActivity.this);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder holder;
if(convertView == null){
LayoutInflater inflater = getLayoutInflater();
convertView = inflater.inflate(R.layout.row3, null);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
}else{
holder = (ViewHolder)convertView.getTag();
}
holder.populateFrom(arrayOfWebData.get(position));
return convertView;
}
}
class ViewHolder
{
public TextView name = null;
public TextView birthday = null;
public TextView favorite_color = null;
public ImageView profilbild = null;
//public ImageLoader imageLoader;
ImageLoader imageLoader = new ImageLoader(MainActivity.this);
ViewHolder(View row){
name = (TextView)row.findViewById(R.id.name);
birthday = (TextView)row.findViewById(R.id.birthday);
favorite_color = (TextView)row.findViewById(R.id.favorite_color);
profilbild = (ImageView)row.findViewById(R.id.imageView1);
}
// Notice we have to change our populateFrom() to take an argument of type "Person"
void populateFrom(Person r){
name.setText(r.name);
birthday.setText(r.birthday);
favorite_color.setText(r.favorite_color);
imageLoader.DisplayImage(r.profilbild, profilbild);
}
}
请帮忙看一下populateListView()方法,当运行应用点击某一行时，通过log输出，得到：
// Output o.toString(): com.example.customlistview.MainActivity$Person@41252310
Log.i("TEST", o.toString())
我想输出的是内容，比如name或者id。
看看你有没有在xml中把点击事件屏蔽掉，再看看 你在adapter里面的contentview 里面有没有绑定点击时间，在adaper里面绑定了事件，listview.setonitemclicklistener 会捕捉不到点击事件
Log.i("TEST", arrayOfWebData[position].name);
如果没反应，在ListView里面加
android:focusable="false"
android:focusableInTouchMode="false"
你在onItemClick并没有进行什么可以跳转的操作啊，怎么知道它没有执行呢？
你没有绑定ListView 单项item 事件
焦点抢夺？你的listview 里面有没有button imagebutton?
参考一下这个：ListView
你不是有arrayOfWebData这个List嘛， 你可以直接在OnItemClick里面写arrayOfWebData.getPosition（position）来获取点击那一条的内容，如果你的arrayOfWebData不是全局变量，你可以重新声明一个内容和这个一样。不必存在object里面。
android:descendantFocusability="blocksDescendants" 加上这句代码
你那item position没有设置
参照Android源码中的ListView编写基本不会出错
你没有监听事件吧，监听到才能操作对象吧
这不是点击了没反应！按照你想要的，解决办法：首先你可以在Person类中实现toString()的方法，其次在Object o = myListView.getItemAtPosition(position); 可以换成Person person=(Person)myListView.getItemAtPosition(position);然后再打印Log.i("TEST",person.toString()); 。第二种方法就是在打印的时候Log.i("TEST","name:"+person.name+",id:"+person.id);
设置断点调试一下，试一试~~~
把onItemClick里面的
Object o = myListView.getItemAtPosition(position);
Log.i("TEST", o.toString());
改为如下内容，得到的结果就是你想要的
if ( arrayOfWebData!=null && arrayOfWebData.size() > 0 ){
Log.i("TEST", arrayOfWebData.get(position).name);
Log.i("TEST", arrayOfWebData.get(position).person_id);
}
可能是事件被占用了
android:descendantFocusability=”blocksDescendants”
确认下item中有没有其他可以获取focus的组件如checkbox等，如果有在xml里面将其设置成focusable=flase,应该就ok了