我已经实现了我的ListView，我使用自定义适配器填充列表，该适配器扩展BaseAdapter并使用基于.NET的服务，拉动并填充列表中的值。这工作正常，但当我试图连续在列表上做一些操作（如删除条目，刷新，编辑..），我收到以下错误。此错误并非始终存在。但在15/20尝试中有1次。
尝试解决，漫游网络，找出原因不会发生..仍在搜索...
11-25 21:38:39.257: ERROR/AndroidRuntime(2169): Uncaught handler: thread main
exiting due to uncaught exception
11-25 21:38:39.325: ERROR/AndroidRuntime(2169): java.lang.IndexOutOfBoundsException:
Invalid location 0, size is 0
11-25 21:38:39.325: ERROR/AndroidRuntime(2169):at
java.util.ArrayList.get(ArrayList.java:341)
ListActivity类：STSBankDetailsListingScreenActivity.java
public class STSBankDetailsListingScreenActivity extends ListActivity implements Runnable {
// All my Declarations are here....
.....….....................
…....................
…..................
private STSAddClientBankDetailsListingScreenAdapter mBankDetailsAdapter = null;
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
super.onCreate(savedInstanceState);
…......................
….....................
// Set the activity content from the XML resource
setContentView(R.layout.XXX);
…....................
…....................
// Set the typeface with the specified font
….......................................................
…........................................................
// Initializing the progress dialog to show the loading status
mProgressDialog = ProgressDialog.show(this,"Loading....","Please wait");
// Capture the widgets that are defined in the XML resource
mBack = (Button) findViewById(R.id.backButton);
…................................
…...............................
// Setting the custom fonts & Text
…...............................
…..............................
// Create a Thread for long running operations
mThread = new Thread(STSBankDetailsListingScreenActivity.this);
mThread.start();
// Instantiate the listview adapter class
mBankDetailsAdapter = new STSAddClientBankDetailsListingScreenAdapter(this);
// Adding the listners for the items in the listview
getListView().setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
mDetailsHolder = new ArrayList<String>();
mDetailsHolder.add(STSURLConstants.AUTH_KEY);
mDetailsHolder.add(mBankICode.get(position).toString());
mDetailsHolder.add(mUserTypeHolder.get(position).toString());
mDetailsHolder.add(mAccountNameHolder.get(position).toString());
mDetailsHolder.add(mBankCodeHolder.get(position).toString());
mDetailsHolder.add(mBankNameHolder.get(position).toString());
mDetailsHolder.add(mBankAddressHolder.get(position).toString());
mDetailsHolder.add(mOpeningBalanceHolder.get(position).toString());
mDetailsHolder.add(mAmtInHolder.get(position).toString());
}
});
}
@Override
protected void onStart() {
Log.i(TAG, "onStart");
super.onStart();
}
@Override
protected void onRestart() {
Log.i(TAG, "onRestart");
// Show the Progress Dialog
mProgressDialog = ProgressDialog.show(STSBankDetailsListingScreenActivity.this, "Loading...", "Please wait");
// Create a Thread for long running operations
mThread = new Thread(STSBankDetailsListingScreenActivity.this);
mThread.start();
super.onRestart();
}
@Override
protected void onPause() {
Log.i(TAG, "onPause");
super.onPause();
}
@Override
protected void onResume() {
Log.i(TAG, "onResume");
//updateUI();
super.onResume();
}
@Override
protected void onStop() {
Log.i(TAG, "onStop");
super.onStop();
}
@Override
protected void onDestroy() {
Log.i(TAG, "onDestroy");
if(mThread != null) {
Thread dummyThread = mThread;
mThread = null;
// Post an interrupt request to this thread
dummyThread.interrupt();
}
super.onDestroy();
}
@Override
public void run() {
// TODO Auto-generated method stub
try {
// Clear the arraylist before adding up the entries
mBankNameHolder.clear();
….............................
// Instantiate the class
mWSConsumer = new STSWebServiceConsumer();
// Call to fetch the bank details from the service
mSTSSelectBankAccountList = mWSConsumer.SelectBankAccountDetails();
// Do the necessary actions to pull the values from the list
for(STSSelectBankAccountDetails s : mSTSSelectBankAccountList) {
// Populate the list....
mBankNameHolder.add(String.valueOf(s.getmBaBankName().toString()));
…..............................
…..............................
}
} else { Log.i(TAG, "Something went wrong !"); }
} catch(Exception err) {
err.printStackTrace();
}
handler.sendEmptyMessage(0); }
private void updateUI() {
Log.i(TAG, "updateUI");
runOnUiThread(new Runnable() {
@Override
public void run() {
try {
// Set the data behind the list view
mBankDetailsAdapter = new STSAddClientBankDetailsListingScreenAdapter(STSBankDetailsListingScreenActivity.this, mBankNameHolder, mAccountNameHolder, mIsCheckedHolder);
getListView().setAdapter(mBankDetailsAdapter);
// Notifies the attached view that the underlying data has been changed
mBankDetailsAdapter.notifyDataSetChanged();
} catch(Exception err) {
err.printStackTrace(); }
}
});
}
public Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case 0:
// Do Nothing...
break;
case 1:
// Calls the run method of the runnable object
mThread.run();
break;
default:
break;
}
// Update the UI
updateUI();
// Dismiss the progress dialog once done
if(mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
//mQuickAction.dismiss();
}
}
};
}
适配器类：STSAddClientBankDetailsListingScreenAdapter.java
public class STSAddClientBankDetailsListingScreenAdapter extends
BaseAdapter {
// Declare all the needed
private Activity mActivity = null;
private List<String> mBankNameHolder = new ArrayList<String>();
private List<String> mAccountNameHolder = new ArrayList<String>();
private List<String> mIsChecked = new ArrayList<String>();
private static final String TAG = STSAddClientBankDetailsListingScreenAdapter.class.getSimpleName();
private static LayoutInflater mLayoutInflater = null; // This class is responsible for instantiating the layout XML file in to its corresponding view objects
public STSAddClientBankDetailsListingScreenAdapter(Context context) {
// Obtains the layout interface from the given context
mLayoutInflater = LayoutInflater.from(context);
}
public STSAddClientBankDetailsListingScreenAdapter(Activity activity, List<String> bankName, List<String> accountName, List<String> isChecked) {
mActivity = activity;
mBankNameHolder = bankName;
mAccountNameHolder = accountName;
mIsChecked = isChecked;
}
/* (non-Javadoc)
* @see android.widget.Adapter#getCount()
*/
@Override
public int getCount() {
// TODO Auto-generated method stub
return mBankNameHolder.size();
}
/* (non-Javadoc)
* @see android.widget.Adapter#getItem(int)
*/
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
/* (non-Javadoc)
* @see android.widget.Adapter#getItemId(int)
*/
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
/* (non-Javadoc)
* @see android.widget.Adapter#getView(int, android.view.View, android.view.ViewGroup)
*/
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
ViewHolder viewHolder;
if(convertView == null) {
convertView = mLayoutInflater.inflate(R.layout.profile_client_bank_details_listing_item, null);
viewHolder = new ViewHolder();
// Capture the widgets defined in the XML resource
viewHolder.mBankName = (TextView) convertView.findViewById(R.id.message01);
viewHolder.mAccountName = (TextView) convertView.findViewById(R.id.message02);
viewHolder.mChecked = (ImageView) convertView.findViewById(R.id.image01);
convertView.setTag(viewHolder); // Set the tag associated with this view
} else {
viewHolder = (ViewHolder) convertView.getTag(); // Returns the view tag
}
// Bind the controls with the resource
viewHolder.mBankName.setText(mBankNameHolder.get(position).toString());
viewHolder.mAccountName.setText(mAccountNameHolder.get(position).toString());
// Set the tick mark according to the values
boolean checked = Boolean.parseBoolean(mIsChecked.get(position).toString());
if(checked) {
viewHolder.mChecked.setVisibility(View.VISIBLE);
} else {
viewHolder.mChecked.setVisibility(View.INVISIBLE);
}
return convertView;
}
static class ViewHolder {
TextView mBankName, mAccountName;
ImageView mChecked;
}
}
请高度赞赏任何形式的帮助。
再次感谢你......
答案 0 :(得分：0)
我强烈感受到的是你的适配器方法 -
getCount（）
在特定情况下给出错误的输出。我建议不要从mBankNameHolder取一些其他参数的大小，或者在每种情况下用log / debug检查这个值。
public int getCount() {
// TODO Auto-generated method stub
return mBankNameHolder.size();
}