java.lang.IllegalStateException:适配器的内容发生了变化 [英] java.lang.IllegalStateException: The content of the adapter has changed
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问题描述
java.lang.IllegalStateException:适配器的内容发生了变化,但ExtendableListView没有收到通知。确保您的适配器的内容是不是从后台线程修改,但只能从UI线程。
我偶尔会收到上面的异常,而点击加载更多动态列表视图里面的选项。
我使用 notifyDataSetChanged()
在 postExecute()
。有什么可以解决这个问题以及如何阻止应用程序从这个崩溃?
适配器=新GHomeGridAdapter(getActivity()getApplicationContext(),R.layout.g_grid,ggridList。);
gridview.setAdapter(适配器);
新的GetData()执行(限制);
loadMore.setOnClickListener(新View.OnClickListener(){
@覆盖
公共无效的onClick(视图v){
loadMore.setVisibility(View.GONE);
新的GetData()执行(限制);
}
});
gridview.setOnScrollListener(新AbsListView.OnScrollListener(){
@覆盖
公共无效onScrollStateChanged(AbsListView观点,诠释scrollState){
如果(gridview.getLastVisiblePosition()+ 1 ==限制){
loadMore.setVisibility(View.VISIBLE);
}
}
私有类的GetData扩展的AsyncTask<整数,虚空,虚空> {
@覆盖
在preExecute保护无效(){
super.on preExecute();
pDialog =新ProgressDialog(myContext);
pDialog.setMessage(请稍候...);
pDialog.setCancelable(假);
pDialog.show();
}
@覆盖
保护无效doInBackground(整数...为arg0){
GyHandler SH =新GyHandler();
INT offest =为arg0 [0];
极限=为arg0 [0] +30;
字符串urlgifs =XYZ;
字符串jsonStr = sh.makeServiceCall(urlgifs,GHandler.GET);
如果(jsonStr!= NULL){
尝试 {
JSONObject的jsonObj =新的JSONObject(jsonStr);
}赶上(JSONException E){
e.printStackTrace();
}
} 其他 {
}
返回null;
}
@覆盖
保护无效onPostExecute(无效的结果){
super.onPostExecute(结果);
如果(pDialog.isShowing())
pDialog.dismiss();
adapter.notifyDataSetChanged();
}
}
日志 -
java.lang.IllegalStateException:适配器的内容发生了变化,但ExtendableListView没有收到通知。确保您的适配器的内容是不是从后台线程修改,但只能从UI线程。 [在ExtendableListView(2131427542,类com.etsy.android.grid.StaggeredGridView)与适配器(类xyz.GiphyHomeGridAdapter)
在com.etsy.android.grid.ExtendableListView.layoutChildren(ExtendableListView.java:559)
在com.etsy.android.grid.StaggeredGridView.layoutChildren(StaggeredGridView.java:358)
在com.etsy.android.grid.ExtendableListView.onLayout(ExtendableListView.java:513)
在android.view.View.layout(View.java:14937)
在android.view.ViewGroup.layout(ViewGroup.java:4651)
在android.widget.RelativeLayout.onLayout(RelativeLayout.java:1055)
在android.view.View.layout(View.java:14937)
在android.view.ViewGroup.layout(ViewGroup.java:4651)
在android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
在android.widget.FrameLayout.onLayout(FrameLayout.java:388)
在android.view.View.layout(View.java:14937)
在android.view.ViewGroup.layout(ViewGroup.java:4651)
在android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:887)
在android.view.View.layout(View.java:14937)
在android.view.ViewGroup.layout(ViewGroup.java:4651)
在android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
在android.widget.FrameLayout.onLayout(FrameLayout.java:388)
在android.view.View.layout(View.java:14937)
在android.view.ViewGroup.layout(ViewGroup.java:4651)
在android.support.v7.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:502)
在android.view.View.layout(View.java:14937)
在android.view.ViewGroup.layout(ViewGroup.java:4651)
在android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
在android.widget.FrameLayout.onLayout(FrameLayout.java:388)
在android.view.View.layout(View.java:14937)
在android.view.ViewGroup.layout(ViewGroup.java:4651)
在android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
在android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
在android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
在android.view.View.layout(View.java:14937)
在android.view.ViewGroup.layout(ViewGroup.java:4651)
在android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
在android.widget.FrameLayout.onLayout(FrameLayout.java:388)
在android.view.View.layout(View.java:14937)
在android.view.ViewGroup.layout(ViewGroup.java:4651)
在android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2132)
在android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1872)
在android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1075)
在android.view.ViewRootImpl $ TraversalRunnable.run(ViewRootImpl.java:5878)
在android.view.Choreographer $ CallbackRecord.run(Choreographer.java:761)
在android.view.Choreographer.doCallbacks(Choreographer.java:574)
在android.view.Choreographer.doFrame(Choreographer.java:544)
在android.view.Choreographer $ FrameDisplayEventReceiver.run(Choreographer.java:747)
在android.os.Handler.handleCallback(Handler.java:733)
在android.os.Handler.dispatchMessage(Handler.java:95)
在android.os.Looper.loop(Looper.java:136)
在android.app.ActivityThread.main(ActivityThread.java:5086)
在java.lang.reflect.Method.invokeNative(本机方法)
解决方案
试试这个,以确保通知
发生在主线程。
@覆盖
在preExecute保护无效(){
super.on preExecute();
runOnUiThread(新的Runnable(){
@覆盖
公共无效的run(){
pDialog =新ProgressDialog(myContext);
pDialog.setMessage(请稍候...);
pDialog.setCancelable(假);
pDialog.show();
}
});
}
@覆盖
保护无效onPostExecute(虚空结果)
{
super.onPostExecute(结果);
如果(pDialog.isShowing())
runOnUiThread(新的Runnable(){
@覆盖
公共无效的run(){
pDialog.dismiss();
adapter.notifyDataSetChanged();
}
});
}
java.lang.IllegalStateException: The content of the adapter has changed but ExtendableListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread.
I am occasionally getting above exception while clicking on "load more" option inside dynamic listview.
I am using notifyDataSetChanged()
inside postExecute()
. What can be the solution to this and how to stop app crashing from this ?
adapter = new GHomeGridAdapter(getActivity().getApplicationContext(), R.layout.g_grid, ggridList);
gridview.setAdapter(adapter);
new GetData().execute(limit);
loadMore.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
loadMore.setVisibility(View.GONE);
new GetData().execute(limit);
}
});
gridview.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if (gridview.getLastVisiblePosition() + 1 == limit) {
loadMore.setVisibility(View.VISIBLE);
}
}
private class GetData extends AsyncTask<Integer, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(myContext);
pDialog.setMessage("Please wait...");
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Void doInBackground(Integer... arg0) {
GyHandler sh = new GyHandler();
int offest=arg0[0];
limit=arg0[0]+30;
String urlgifs="xyz";
String jsonStr = sh.makeServiceCall(urlgifs, GHandler.GET);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
} catch (JSONException e) {
e.printStackTrace();
}
} else {
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
if (pDialog.isShowing())
pDialog.dismiss();
adapter.notifyDataSetChanged();
}
}
Log-
java.lang.IllegalStateException: The content of the adapter has changed but ExtendableListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread. [in ExtendableListView(2131427542, class com.etsy.android.grid.StaggeredGridView) with Adapter(class xyz.GiphyHomeGridAdapter)]
at com.etsy.android.grid.ExtendableListView.layoutChildren(ExtendableListView.java:559)
at com.etsy.android.grid.StaggeredGridView.layoutChildren(StaggeredGridView.java:358)
at com.etsy.android.grid.ExtendableListView.onLayout(ExtendableListView.java:513)
at android.view.View.layout(View.java:14937)
at android.view.ViewGroup.layout(ViewGroup.java:4651)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1055)
at android.view.View.layout(View.java:14937)
at android.view.ViewGroup.layout(ViewGroup.java:4651)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14937)
at android.view.ViewGroup.layout(ViewGroup.java:4651)
at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:887)
at android.view.View.layout(View.java:14937)
at android.view.ViewGroup.layout(ViewGroup.java:4651)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14937)
at android.view.ViewGroup.layout(ViewGroup.java:4651)
at android.support.v7.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:502)
at android.view.View.layout(View.java:14937)
at android.view.ViewGroup.layout(ViewGroup.java:4651)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14937)
at android.view.ViewGroup.layout(ViewGroup.java:4651)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
at android.view.View.layout(View.java:14937)
at android.view.ViewGroup.layout(ViewGroup.java:4651)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14937)
at android.view.ViewGroup.layout(ViewGroup.java:4651)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2132)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1872)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1075)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5878)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
at android.view.Choreographer.doCallbacks(Choreographer.java:574)
at android.view.Choreographer.doFrame(Choreographer.java:544)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5086)
at java.lang.reflect.Method.invokeNative(Native Method)
解决方案
Try this to make sure that notify
happens in the main thread.
@Override
protected void onPreExecute() {
super.onPreExecute();
runOnUiThread(new Runnable() {
@Override
public void run() {
pDialog = new ProgressDialog(myContext);
pDialog.setMessage("Please wait...");
pDialog.setCancelable(false);
pDialog.show();
}
});
}
@Override
protected void onPostExecute(Void result)
{
super.onPostExecute(result);
if (pDialog.isShowing())
runOnUiThread(new Runnable() {
@Override
public void run() {
pDialog.dismiss();
adapter.notifyDataSetChanged();
}
});
}
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