I am working in android Pull to refresh listview.Its working fine ,but while refreshing listview ,I am trying to scroll down the list.i am getting this errors:
我正在使用android Pull刷新listview。它运行良好，但在刷新listview时，我试图向下滚动列表。我犯了这样的错误:
here is my code:
这是我的代码:
public void Callpagedetails() {
try
{
URL = http://history_thread.php?token_id=" + Token + "&p=" + page_count;
Log.d("TAG", "API URL IS " + URL);
HttpClient mHttpClient = new DefaultHttpClient();
HttpGet mGetMethod = new HttpGet(URL);
HttpResponse mReponseMessage = mHttpClient.execute(mGetMethod);
String Response = EntityUtils.toString(mReponseMessage.getEntity());
Log.d("TAG", "O/P Response is " + Response);
JSONArray responseObject = new JSONArray(Response);
for(int i=0; i < responseObject.length(); i++)
{
obj = responseObject.getJSONObject(i);
listhashmap = new HashMap<String, Object>();
listhashmap.put("text",obj.getString("text"));
here i am storing the item in arraylist arraylistitems
}
}
catch(Exception e)
{
System.out.println(e);
}
}
Where the arraylistitems is ArrayList<HashMap<String, Object>> arraylistitems;
其中arraylistitem为ArrayList
where Callpagedetails() is the method from where i am getting the data
Callpagedetails()是从哪里获取数据的方法
01-20 18:22:17.755: E/InputEventReceiver(23393): Exception dispatching input event.
01-20 18:22:17.755: E/MessageQueue-JNI(23393): Exception in MessageQueue callback: handleReceiveCallback
01-20 18:22:17.775: E/MessageQueue-JNI(23393): java.lang.IndexOutOfBoundsException: Invalid index 9, size is 1
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at java.util.ArrayList.get(ArrayList.java:304)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.widget.HeaderViewListAdapter.isEnabled(HeaderViewListAdapter.java:164)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.widget.AbsListView.onTouchEvent(AbsListView.java:3816)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at com.listview.HistoryListView.onTouchEvent(HistoryListView.java:316)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at com.listview.HistoryListView.onInterceptTouchEvent(HistoryListView.java:380)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1827)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2185)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1886)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2185)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1886)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2185)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1886)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2185)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1886)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2185)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1886)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2113)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1466)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.app.Activity.dispatchTouchEvent(Activity.java:2436)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2061)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.View.dispatchPointerEvent(View.java:7425)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3376)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3308)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4402)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4380)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4484)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.os.MessageQueue.nativePollOnce(Native Method)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.os.MessageQueue.next(MessageQueue.java:125)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.os.Looper.loop(Looper.java:124)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at android.app.ActivityThread.main(ActivityThread.java:4918)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at java.lang.reflect.Method.invokeNative(Native Method)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at java.lang.reflect.Method.invoke(Method.java:511)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1004)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:771)
01-20 18:22:17.775: E/MessageQueue-JNI(23393): at dalvik.system.NativeStart.main(Native Method)
01-20 18:22:17.785: E/AndroidRuntime(23393): FATAL EXCEPTION: main
01-20 18:22:17.785: E/AndroidRuntime(23393): java.lang.IndexOutOfBoundsException: Invalid index 9, size is 1
01-20 18:22:17.785: E/AndroidRuntime(23393): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
01-20 18:22:17.785: E/AndroidRuntime(23393): at java.util.ArrayList.get(ArrayList.java:304)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.widget.HeaderViewListAdapter.isEnabled(HeaderViewListAdapter.java:164)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.widget.AbsListView.onTouchEvent(AbsListView.java:3816)
01-20 18:22:17.785: E/AndroidRuntime(23393): at com.listview.HistoryListView.onTouchEvent(HistoryListView.java:316)
01-20 18:22:17.785: E/AndroidRuntime(23393): at com.listview.HistoryListView.onInterceptTouchEvent(HistoryListView.java:380)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1827)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2185)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1886)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2185)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1886)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2185)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1886)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2185)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1886)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2185)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1886)
01-20 18:22:17.785: E/AndroidRuntime(23393): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2113)
01-20 18:22:17.785: E/AndroidRuntime(23393): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1466)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.app.Activity.dispatchTouchEvent(Activity.java:2436)
01-20 18:22:17.785: E/AndroidRuntime(23393): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2061)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.View.dispatchPointerEvent(View.java:7425)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3376)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3308)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4402)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4380)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4484)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.os.MessageQueue.nativePollOnce(Native Method)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.os.MessageQueue.next(MessageQueue.java:125)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.os.Looper.loop(Looper.java:124)
01-20 18:22:17.785: E/AndroidRuntime(23393): at android.app.ActivityThread.main(ActivityThread.java:4918)
01-20 18:22:17.785: E/AndroidRuntime(23393): at java.lang.reflect.Method.invokeNative(Native Method)
01-20 18:22:17.785: E/AndroidRuntime(23393): at java.lang.reflect.Method.invoke(Method.java:511)
01-20 18:22:17.785: E/AndroidRuntime(23393): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1004)
01-20 18:22:17.785: E/AndroidRuntime(23393): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:771)
01-20 18:22:17.785: E/AndroidRuntime(23393): at dalvik.system.NativeStart.main(Native Method)
Could somebody help me out. Thanks.
谁能帮我一下吗?谢谢。
6 个解决方案
#1
3
i am not trying but sure it may be help you.
我不是在尝试，但肯定会对你有所帮助。
JSONArray responseObject = new JSONArray(Response);
listhashmap = new HashMap<String, Object>();
for(int i=0; i < responseObject.length(); i++)
{
obj = responseObject.getJSONObject(i);
listhashmap.put("text",obj.getString("text"));
}
#2
0
You should not touch an adapter's data in a non-UI thread.
不应该在非ui线程中触摸适配器的数据。
Your doInBackground() seems to set a count that's possibly used by an adapter to zero and also guessing that Callpagedetails() directly modifies the data used by the adapter.
doInBackground()似乎将适配器可能使用的计数设置为0，并猜测Callpagedetails()将直接修改适配器使用的数据。
Instead, modify the adapter's data in the UI thread. onPostExecute() is a good place for that.
相反，在UI线程中修改适配器的数据。onPostExecute()是一个很好的地方。
#3
0
On your Callpagedetails, take a look at your for loop after instanced responseObject.
在Callpagedetails中，查看实例responseObject之后的for循环。
You keep initial listhashmap. It is why you listhashmap size is 1. Replace the new HashMap to outside for loop.
你保持初始listhashmap。这就是为什么listhashmap的大小是1。将新的HashMap替换为for循环。
for (int i = 0; i < responseObject.length(); i++) {
obj = r esponseObject.getJSONObject(i);
listhashmap = new HashMap < String, Object > (); // problems code
listhashmap.put("text", obj.getString("text"));
}
#4
0
protected class RefreshTask extends AsyncTask>> {
受保护的类RefreshTask扩展AsyncTask>> {
@Override
protected ArrayList<HashMap<String, Object>> doInBackground(Void... params) {
// TODO Auto-generated method stub
page_count = 0;
ArrayList<HashMap<String, Object>> data=Callpagedetails();
return data;
}
protected void onPostExecute(ArrayList<HashMap<String, Object>> result) {
super.onPostExecute(result);
if(result!=null)
{
adapterfirst = new Questionadapter(historylist.this,result);
listviewfirst = (RefeshListView) findViewById(R.id.listquestion);
listviewfirst.setAdapter(adapterfirst);
adapterfirst.notifyDataSetChanged();
}
yourlistView.postDelayed(new Runnable() {
@Override
public void run() {
new RefreshTask().execute();
}
}, 1000);
}
}
}
Hi Priya ! try this procedure! It is always a good way to pass the objects to onpostExecute as a parameter! Hope this will fix your issue!
嗨Priya !试试这个程序!它始终是将对象传递到onpostExecute作为参数的好方法!希望这能解决你的问题!
#5
0
This may not be exact . but try to modify accordingly,
这可能并不准确。但是试着相应地修改，
public void Callpagedetails() {
try
{
URL = http://history_thread.php?token_id=" + Token + "&p=" + page_count;
Log.d("TAG", "API URL IS " + URL);
HttpClient mHttpClient = new DefaultHttpClient();
HttpGet mGetMethod = new HttpGet(URL);
HttpResponse mReponseMessage = mHttpClient.execute(mGetMethod);
String Response = EntityUtils.toString(mReponseMessage.getEntity());
Log.d("TAG", "O/P Response is " + Response);
JSONArray responseObject = new JSONArray(Response);
for(int i=0; i < responseObject.length(); i++)
{
obj = responseObject.getJSONObject(i);
}
}
catch(Exception e)
{
System.out.println(e);
}
}
and , in your
,在你的
doInBackground() {
....
CallPageDetails();
}
and,
而且,
onPostExecute() {
if(yourListView!=null) {
listhashmap = new HashMap<String, Object>();
listhashmap.put("text",obj.getString("text"));
here YOU WILL BE storing the item in arraylist arraylistitems
&& also set,
yourAdapter.notifyDataSetChanged();
}
.....
.....
}
*-> Try at your Own Risk.
-冒你自己的风险。
#6
0
arraylist hold object refrence so your list hold only last value becuase you are new object on same memory locaion.
arraylist保存对象的折射，所以你的列表只保存最后一个值，因为你是同一个内存上的新对象。
for (int i = 0; i < responseObject.length(); i++) {
obj = r esponseObject.getJSONObject(i);
listhashmap = new HashMap < String, Object > (); // problems code
listhashmap.put("text", obj.getString("text"));
}
replace with
替换为
for (int i = 0; i < responseObject.length(); i++) {
obj = r esponseObject.getJSONObject(i);
**HashMap<String, Object> listhashmap = new HashMap<String, Object>();**
listhashmap.put("text",obj.getString("text"));
here i am storing the item in arraylist arraylistitems
rraylistitem.put(listhashmap);
}
#1
3
i am not trying but sure it may be help you.
我不是在尝试，但肯定会对你有所帮助。
JSONArray responseObject = new JSONArray(Response);
listhashmap = new HashMap<String, Object>();
for(int i=0; i < responseObject.length(); i++)
{
obj = responseObject.getJSONObject(i);
listhashmap.put("text",obj.getString("text"));
}
#2
0
You should not touch an adapter's data in a non-UI thread.
不应该在非ui线程中触摸适配器的数据。
Your doInBackground() seems to set a count that's possibly used by an adapter to zero and also guessing that Callpagedetails() directly modifies the data used by the adapter.
doInBackground()似乎将适配器可能使用的计数设置为0，并猜测Callpagedetails()将直接修改适配器使用的数据。
Instead, modify the adapter's data in the UI thread. onPostExecute() is a good place for that.
相反，在UI线程中修改适配器的数据。onPostExecute()是一个很好的地方。
#3
0
On your Callpagedetails, take a look at your for loop after instanced responseObject.
在Callpagedetails中，查看实例responseObject之后的for循环。
You keep initial listhashmap. It is why you listhashmap size is 1. Replace the new HashMap to outside for loop.
你保持初始listhashmap。这就是为什么listhashmap的大小是1。将新的HashMap替换为for循环。
for (int i = 0; i < responseObject.length(); i++) {
obj = r esponseObject.getJSONObject(i);
listhashmap = new HashMap < String, Object > (); // problems code
listhashmap.put("text", obj.getString("text"));
}
#4
0
protected class RefreshTask extends AsyncTask>> {
受保护的类RefreshTask扩展AsyncTask>> {
@Override
protected ArrayList<HashMap<String, Object>> doInBackground(Void... params) {
// TODO Auto-generated method stub
page_count = 0;
ArrayList<HashMap<String, Object>> data=Callpagedetails();
return data;
}
protected void onPostExecute(ArrayList<HashMap<String, Object>> result) {
super.onPostExecute(result);
if(result!=null)
{
adapterfirst = new Questionadapter(historylist.this,result);
listviewfirst = (RefeshListView) findViewById(R.id.listquestion);
listviewfirst.setAdapter(adapterfirst);
adapterfirst.notifyDataSetChanged();
}
yourlistView.postDelayed(new Runnable() {
@Override
public void run() {
new RefreshTask().execute();
}
}, 1000);
}
}
}
Hi Priya ! try this procedure! It is always a good way to pass the objects to onpostExecute as a parameter! Hope this will fix your issue!
嗨Priya !试试这个程序!它始终是将对象传递到onpostExecute作为参数的好方法!希望这能解决你的问题!
#5
0
This may not be exact . but try to modify accordingly,
这可能并不准确。但是试着相应地修改，
public void Callpagedetails() {
try
{
URL = http://history_thread.php?token_id=" + Token + "&p=" + page_count;
Log.d("TAG", "API URL IS " + URL);
HttpClient mHttpClient = new DefaultHttpClient();
HttpGet mGetMethod = new HttpGet(URL);
HttpResponse mReponseMessage = mHttpClient.execute(mGetMethod);
String Response = EntityUtils.toString(mReponseMessage.getEntity());
Log.d("TAG", "O/P Response is " + Response);
JSONArray responseObject = new JSONArray(Response);
for(int i=0; i < responseObject.length(); i++)
{
obj = responseObject.getJSONObject(i);
}
}
catch(Exception e)
{
System.out.println(e);
}
}
and , in your
,在你的
doInBackground() {
....
CallPageDetails();
}
and,
而且,
onPostExecute() {
if(yourListView!=null) {
listhashmap = new HashMap<String, Object>();
listhashmap.put("text",obj.getString("text"));
here YOU WILL BE storing the item in arraylist arraylistitems
&& also set,
yourAdapter.notifyDataSetChanged();
}
.....
.....
}
*-> Try at your Own Risk.
-冒你自己的风险。
#6
0
arraylist hold object refrence so your list hold only last value becuase you are new object on same memory locaion.
arraylist保存对象的折射，所以你的列表只保存最后一个值，因为你是同一个内存上的新对象。
for (int i = 0; i < responseObject.length(); i++) {
obj = r esponseObject.getJSONObject(i);
listhashmap = new HashMap < String, Object > (); // problems code
listhashmap.put("text", obj.getString("text"));
}
replace with
替换为
for (int i = 0; i < responseObject.length(); i++) {
obj = r esponseObject.getJSONObject(i);
**HashMap<String, Object> listhashmap = new HashMap<String, Object>();**
listhashmap.put("text",obj.getString("text"));
here i am storing the item in arraylist arraylistitems
rraylistitem.put(listhashmap);
}