I am getting this strange error:
R.id cannot be resolved
on lines:
WebView myWebView = (WebView) findViewById(view.R.id.webview);
myWebView.loadUrl(s);
I tried to clean the project and restart it. here is my code:
public class NewsActivity extends ListActivity {
public ReadXML ReadXML=new ReadXML();
public ArrayList<String> ynetList =new ArrayList<String>();
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
for(int i=0;i<ReadXML.hadashotListItems.size();i++)
ynetList.add(ReadXML.hadashotListItems.get(i).title+"\n"+ReadXML.hadashotListItems.get(i).pubDate);
setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item, ynetList));
// setContentView(R.layout.main);
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
// When clicked, show a toast with the TextView text
String s= ReadXML.hadashotListItems.get(position).link;
WebView myWebView = (WebView) findViewById(view.R.id.webview);
myWebView.loadUrl(s);
//
//Toast.makeText(getApplicationContext(((TextView)view).getText(),Toast.LENGTH_SHORT).show();
}
}
);
}}
my xml code is: list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp"
android:textSize="15sp" >
</TextView>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:i开发者_开发知识库d="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</LinearLayout>
thanks for help!
The message R.id cannot be resolved
means that the R
class is not properly built or at least is not according to your file list_item.xml
as it defines an id
.
The probable causes are the following:
Eclipse is lost and does not manage to build your project properly (this happens sometime): try to clean and rebuild your project (menu project/clean of Eclipse).
Sometimes this is not sufficient either, so try to
- clean you project
- modify your
AndroidManifest.xml
by adding a blank char in it - Close your project in Eclipse
- Open it again
- Re-clean it and build it
Your file
list_item.xml
is not in the right directory. It should be in the directory[project_root]/res/layout
You have an Android framework installation problem. Check in the menu "Windows/Android SDK and ADT manager" of Eclipse whether everything is fine.
It should be just
WebView myWebView = (WebView) findViewById(R.id.webview);
No view before the R
try this way
WebView myWebView = (WebView) findViewById(R.id.webview);
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