Java Listview setitemonclicklistener不';我看不到所有项目
我的片段中有这个方法,我想参与另一个不同于我点击的项目的活动,但它只适用于第一个和第二个项目, 这是我的方法:Java Listview setitemonclicklistener不';我看不到所有项目,java,android,listview,fragment,Java,Android,Listview,Fragment,我的片段中有这个方法,我想参与另一个不同于我点击的项目的活动,但它只适用于第一个和第二个项目, 这是我的方法: listView = (ListView) rootView.findViewById(R.id.list); listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> ar
listView = (ListView) rootView.findViewById(R.id.list);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int position, long arg3) {
int position_from = position;
Log.i("TRY", Float.toString(position_from));
Intent intent = new Intent(getActivity(),FbLoginActivity.class);
startActivity(intent);
}
});
listView=(listView)rootView.findviewbyd(R.id.list);
setOnItemClickListener(新的AdapterView.OnItemClickListener(){
@凌驾
公共链接(AdapterView arg0、视图arg1、,
整数位置,长arg3){
int position_from=位置;
Log.i(“TRY”,Float.toString(position_from));
Intent Intent=新的Intent(getActivity(),FbLoginActivity.class);
星触觉(意向);
}
});
当我运行日志时,当我单击第一个“0.0”时,当我单击第二个“0.0”时,当我单击第三个“2.0”时,当我单击第二个“0.0”时,其他的都不起作用
有时在logcat中,当我单击其他选项卡(不是1和3)时,“unregisterListener()被调用”
这都是我的碎片
public class SampleFragment extends Fragment {
public static String KEY_ID = "id";
public static String KEY_EMAIL = "email";
public static String KEY_NAME = "name";
public static String KEY_JSON = "JSON_DB";
//EVENTI
private static final String TAG = SampleActivity.class.getSimpleName();
private ListView listView;
private FeedListAdapter listAdapter;
private List<FeedItem> feedItems;
private String URL_FEED = "http://api.androidhive.info/feed/feed.json";
//EVENTI
private static final String ARG_POSITION = "position";
private WebView myWebView;
public ValueCallback<Uri> mUploadMessage;
private int position;
public static SampleFragment newInstance(int position) {
SampleFragment f = new SampleFragment();
Bundle b = new Bundle();
b.putInt(ARG_POSITION, position);
f.setArguments(b);
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
LoadPreferences();
Log.i("string", KEY_EMAIL);
Log.i("string", KEY_ID);
Log.i("string", KEY_NAME);
Log.i("string", KEY_JSON);
position = getArguments().getInt(ARG_POSITION);
View rootView = inflater.inflate(page, container, false);
listView = (ListView) rootView.findViewById(R.id.list);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int position, long arg3) {
int position_from = position;
Log.i("TRY", Float.toString(position_from));
Intent intent = new Intent(getActivity(),FbLoginActivity.class);
startActivity(intent);
}
});
feedItems = new ArrayList<FeedItem>();
listAdapter = new FeedListAdapter(getActivity(), feedItems);
listView.setAdapter(listAdapter);
Activity activity = getActivity();
if (KEY_ID == "0") {
Toast.makeText(activity, "Non essendo connesso a Facebook non potrai usufruire di tutte le funzionalità che abbiamo creato apposta per te.", Toast.LENGTH_LONG).show();
}
switch (position) {
case 0:
Cache cache = App.getInstance().getRequestQueue().getCache();
Cache.Entry entry = cache.get(URL_FEED);
if (entry != null) {
// fetch the data from cache
try {
String data = new String(entry.data, "UTF-8");
try {
parseJsonFeed(new JSONObject(data));
} catch (JSONException e) {
e.printStackTrace();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
} else {
// making fresh volley request and getting json
JsonObjectRequest jsonReq = new JsonObjectRequest(Request.Method.GET,
URL_FEED, null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
VolleyLog.d(TAG, "Response: " + response.toString());
if (response != null) {
parseJsonFeed(response);
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
}
});
// Adding request to volley request queue
App.getInstance().addToRequestQueue(jsonReq);
}
break;
case 1:
break;
case 2:
break;
case 3:
break;
case 4:
break;
}
// }
return rootView;
}
/**
* Parsing json reponse and passing the data to feed view list adapter
* */
private void parseJsonFeed(JSONObject response) {
try {
JSONArray feedArray = response.getJSONArray("feed");
for (int i = 0; i < feedArray.length(); i++) {
JSONObject feedObj = (JSONObject) feedArray.get(i);
FeedItem item = new FeedItem();
item.setId(feedObj.getInt("id"));
item.setName(feedObj.getString("name"));
// Image might be null sometimes
String image = feedObj.isNull("image") ? null : feedObj.getString("image");
item.setImge(image);
item.setStatus(feedObj.getString("status"));
item.setProfilePic(feedObj.getString("profilePic"));
item.setTimeStamp(feedObj.getString("timeStamp"));
// url might be null sometimes
String feedUrl = feedObj.isNull("url") ? null : feedObj.getString("url");
item.setUrl(feedUrl);
feedItems.add(item);
}
// notify data changes to list adapater
listAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
CallbackManager callbackManager = CallbackManager.Factory.create();
callbackManager.onActivityResult(requestCode, resultCode, data);
}
private void LoadPreferences(){
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
KEY_NAME = sharedPreferences.getString("name", "0") ;
KEY_EMAIL = sharedPreferences.getString("email", "0") ;
KEY_ID = sharedPreferences.getString("id", "0") ;
KEY_JSON = sharedPreferences.getString("JSON_DB", "0") ;
//Toast.makeText(this, name, Toast.LENGTH_LONG).show();
//Toast.makeText(this, id, Toast.LENGTH_LONG).show();
//Toast.makeText(this, email, Toast.LENGTH_LONG).show();
}
}
public类SampleFragment扩展片段{
公共静态字符串键\u ID=“ID”;
公共静态字符串键\u EMAIL=“EMAIL”;
公共静态字符串键\u NAME=“NAME”;
公共静态字符串KEY_JSON=“JSON_DB”;
//事件
private static final String TAG=SampleActivity.class.getSimpleName();
私有列表视图列表视图;
专用FeedListAdapter;
私人物品清单;
专用字符串URL_提要=”http://api.androidhive.info/feed/feed.json";
//事件
私有静态最终字符串ARG_POSITION=“POSITION”;
私有网络视图myWebView;
公共价值信息;
私人职位;
公共静态SampleFragment newInstance(int位置){
SampleFragment f=新的SampleFragment();
Bundle b=新Bundle();
b、 putInt(ARG_位置,位置);
f、 设置参数(b);
返回f;
}
@凌驾
CreateView上的公共视图(布局、充气机、视图组容器、捆绑包保存状态){
LoadPreferences();
Log.i(“字符串”,关键字为电子邮件);
Log.i(“字符串”,键号);
Log.i(“字符串”,键名称);
Log.i(“字符串”,KEY_JSON);
position=getArguments().getInt(ARG_位置);
视图根视图=充气机。充气(页面,容器,错误);
listView=(listView)rootView.findViewById(R.id.list);
setOnItemClickListener(新的AdapterView.OnItemClickListener(){
@凌驾
公共链接(AdapterView arg0、视图arg1、,
整数位置,长arg3){
int position_from=位置;
Log.i(“TRY”,Float.toString(position_from));
Intent Intent=新的Intent(getActivity(),FbLoginActivity.class);
星触觉(意向);
}
});
feedItems=新的ArrayList();
listAdapter=新的FeedListAdapter(getActivity(),feedItems);
setAdapter(listAdapter);
Activity=getActivity();
如果(键号=0){
Toast.makeText(活动,“非essendo connesso a Facebook非potrai usufruire di tutte le funzionalitáche abbiamo creato apposta per te.”,Toast.LENGTH_LONG)。show();
}
开关(位置){
案例0:
缓存缓存=App.getInstance().getRequestQueue().getCache();
Cache.Entry=Cache.get(URL\u提要);
if(条目!=null){
//从缓存中获取数据
试一试{
字符串数据=新字符串(entry.data,“UTF-8”);
试一试{
parseJsonFeed(新的JSONObject(数据));
}捕获(JSONException e){
e、 printStackTrace();
}
}捕获(不支持的编码异常e){
e、 printStackTrace();
}
}否则{
//发出新的截击请求并获取json
JsonObjectRequest jsonReq=新的JsonObjectRequest(Request.Method.GET,
URL_提要,空,新响应。侦听器(){
@凌驾
公共void onResponse(JSONObject响应){
d(标记“Response:+Response.toString());
if(响应!=null){
parseJsonFeed(响应);
}
}
},new Response.ErrorListener(){
@凌驾
公共无效onErrorResponse(截击错误){
d(标记“Error:+Error.getMessage());
}
});
//将请求添加到截击请求队列
App.getInstance().addToRequestQueue(jsonReq);
}
打破
案例1:
打破
案例2:
打破
案例3:
打破
案例4:
打破
}
// }
返回rootView;
}
/**
*解析json响应并将数据传递给提要视图列表适配器
* */
私有void parseJsonFeed(JSONObject响应){
试一试{
JSONArray feedArray=response.getJSONArray(“feed”);
对于(int i=0;ipublic class FeedListAdapter extends BaseAdapter {
private Activity activity;
private LayoutInflater inflater;
private List<FeedItem> feedItems;
ImageLoader imageLoader = App.getInstance().getImageLoader();
public FeedListAdapter(Activity activity, List<FeedItem> feedItems) {
this.activity = activity;
this.feedItems = feedItems;
}
@Override
public int getCount() {
return feedItems.size();
}
@Override
public Object getItem(int location) {
return feedItems.get(location);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.feed_item, null);
if (imageLoader == null)
imageLoader = App.getInstance().getImageLoader();
TextView name = (TextView) convertView.findViewById(R.id.name);
TextView timestamp = (TextView) convertView
.findViewById(R.id.timestamp);
TextView statusMsg = (TextView) convertView
.findViewById(R.id.txtStatusMsg);
TextView url = (TextView) convertView.findViewById(R.id.txtUrl);
NetworkImageView profilePic = (NetworkImageView) convertView
.findViewById(R.id.profilePic);
FeedImageView feedImageView = (FeedImageView) convertView
.findViewById(R.id.feedImage1);
FeedItem item = feedItems.get(position);
name.setText(item.getName());
// Converting timestamp into x ago format
CharSequence timeAgo = DateUtils.getRelativeTimeSpanString(
Long.parseLong(item.getTimeStamp()),
System.currentTimeMillis(), DateUtils.SECOND_IN_MILLIS);
timestamp.setText(timeAgo);
// Chcek for empty status message
if (!TextUtils.isEmpty(item.getStatus())) {
statusMsg.setText(item.getStatus());
statusMsg.setVisibility(View.VISIBLE);
} else {
// status is empty, remove from view
statusMsg.setVisibility(View.GONE);
}
// Checking for null feed url
if (item.getUrl() != null) {
url.setText(Html.fromHtml("<a href=\"" + item.getUrl() + "\">"
+ item.getUrl() + "</a> "));
// Making url clickable
url.setMovementMethod(LinkMovementMethod.getInstance());
url.setVisibility(View.VISIBLE);
} else {
// url is null, remove from the view
url.setVisibility(View.GONE);
}
// user profile pic
profilePic.setImageUrl(item.getProfilePic(), imageLoader);
// Feed image
if (item.getImge() != null) {
feedImageView.setImageUrl(item.getImge(), imageLoader);
feedImageView.setVisibility(View.VISIBLE);
feedImageView
.setResponseObserver(new FeedImageView.ResponseObserver() {
@Override
public void onError() {
}
@Override
public void onSuccess() {
}
});
} else {
feedImageView.setVisibility(View.GONE);
}
return convertView;
}
}
convertView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int position_from = position;
Log.i("TRY", Float.toString(position_from));
Intent intent = new Intent(context,FbLoginActivity.class);
context.startActivity(intent);
}
});
private Context context;
public FeedListAdapter(Context context,Activity activity, List<FeedItem> feedItems) {
this.context = context;
this.activity = activity;
this.feedItems = feedItems;
}