somebody pls get me out of this.I am trying to display a list from an sqlite database which worked absolutely fine but dont know what went wrong it showed cant find provider info.I fixed it and then when i am running the code with list_cursor.moveToFirst() it just shows the 1st item in list again and again which proves that it is fetching data....When I use list_cursor.moveToNext() it shows the following exception:PLS HELP ME
10-13 15:11:41.017 5337-5337/com.phase3.mascotnew E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.phase3.mascotnew, PID: 5337
android.database.CursorIndexOutOfBoundsException: Index 3 requested, with a size of 3
at android.database.AbstractCursor.checkPosition(AbstractCursor.java:426)
at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:147)
at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:61)
at android.database.CursorWrapper.getString(CursorWrapper.java:114)
at com.phase3.mascotnew.SelectRecipeActivity$MyCursorAdapter.getView(SelectRecipeActivity.java:145)
at android.widget.AbsListView.obtainView(AbsListView.java:2338)
at android.widget.ListView.makeAndAddView(ListView.java:1813)
at android.widget.ListView.fillDown(ListView.java:698)
at android.widget.ListView.fillFromTop(ListView.java:759)
at android.widget.ListView.layoutChildren(ListView.java:1646)
at android.widget.AbsListView.onLayout(AbsListView.java:2149)
at android.view.View.layout(View.java:15140)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1160)
at android.view.View.layout(View.java:15140)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:515)
at android.widget.FrameLayout.onLayout(FrameLayout.java:450)
at android.view.View.layout(View.java:15140)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1888)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1742)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1651)
at android.view.View.layout(View.java:15140)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:515)
at android.widget.FrameLayout.onLayout(FrameLayout.java:450)
at android.view.View.layout(View.java:15140)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2474)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2180)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1246)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6412)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:788)
at android.view.Choreographer.doCallbacks(Choreographer.java:591)
at android.view.Choreographer.doFrame(Choreographer.java:560)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:774)
at android.os.Handler.handleCallback(Handler.java:808)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5299)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
at dalvik.system.NativeStart.main(Native Method)
SelectRecipeActivity.java
package com.phase3.mascotnew;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;
import com.phase3.mascotnew.database.Tables.Recipe;
import java.io.File;
public class SelectRecipeActivity extends Activity {
private ListView mListView = null;
private Cursor mCursor = null;
private SimpleCursorAdapter adapter;
private static final String TAG = "SELECT RECIPE ACTIVITY";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_select_recipe2);
mListView = (ListView) findViewById(R.id.recipe_list);
createRecipeSubFolder();
showTableItems();
mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Cursor cursor=(Cursor)mListView.getAdapter().getItem(position);
Log.i(TAG, "Fetching item position" + position);
String pass_recname = cursor.getString(cursor.getColumnIndex(Recipe.NAME_NIC));
int pass_groupid = (cursor.getInt(cursor.getColumnIndex(Recipe.GROUPID_NIC)));
Log.i(TAG, "Fetching data" + " " + pass_recname + " " + pass_groupid);
cursor.close();
Intent i = new Intent(SelectRecipeActivity.this, WhatYouNeedActivity.class);
i.putExtra("Title", pass_recname);
i.putExtra("GroupId", pass_groupid);
startActivity(i);
Log.i(TAG, "Sending Data");
}
});
}
@Override
protected void onResume() {
super.onResume();
showTableItems();
}
@Override
protected void onPause() {
super.onPause();
if(mCursor != null){
mCursor.close();
mCursor = null;
}
}
public void showTableItems() {
if (mCursor != null) {
mCursor.close();
mCursor = null;
}
int StatusVal=1;
String Status=Recipe.STATUS+"="+ StatusVal;
//String selection=Recipe.GROUPID;
//String selection = Recipe.GROUPID + " "+ "AND"+" "+Status;
mCursor = getContentResolver().query(Recipe.CONTENT_URI, Recipe.PROJECTION_ALL,Status, null, null);
if (mCursor == null || mCursor.getCount() == 0) {
notifyDataExist(false);
return;
}
notifyDataExist(true);
String[] from = {Recipe.NAME_NIC};
int[] to = {R.id.recname_row};
Log.i(TAG, "Setting Adapter");
adapter = new MyCursorAdapter(this, R.layout.list_recipes_row, mCursor, from, to);
mListView.setAdapter(adapter);
}
private void notifyDataExist(boolean exist)
{
if(exist)
{
mListView.setVisibility(View.VISIBLE);
}
else
{
Log.i(TAG, "Recipe Table has no data");
mListView.setVisibility(View.GONE);
}
}
class MyCursorAdapter extends SimpleCursorAdapter {
Activity mActivity = null;
int mLayoutId;
String[] from = null;
int[] to = null;
public MyCursorAdapter(Context context, int layout, Cursor cursor, String[] from, int[] to) {
super(context, layout, cursor, from, to, SimpleCursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);
mActivity = (Activity) context;
mLayoutId = layout;
this.from = from;
this.to = to;
}
@Override
public int getCount() {
return mCursor.getCount() + 1;
}
@Override
@TargetApi(15)
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
if (row == null) {
row = mActivity.getLayoutInflater().inflate(mLayoutId, null, false);
}
Cursor list_cursor = getCursor();
list_cursor.moveToPosition(position);
list_cursor.moveToNext();
TextView txtSecondCell = (TextView) row.findViewById(R.id.recname_row);
String recipename = list_cursor.getString(list_cursor.getColumnIndex(Recipe.NAME_NIC));
txtSecondCell.setText(recipename);
Log.i(TAG, "Showing List");
return row;
}
}
private void createRecipeSubFolder(){
Cursor cursor1 = getContentResolver().query(Recipe.CONTENT_URI, Recipe.PROJECTION_ALL, null, null, null);
while(cursor1.moveToNext()){
// String path = Environment.getExternalStorageDirectory()
// + File.separator + "/MASCOT/" + File.separator
// + "/Recipe/" + File.separator + cursor.getString(cursor.getColumnIndex(Recipe.NAME_NIC));
// Log.i("Recipes", cursor.getString(cursor.getColumnIndex(Recipe.NAME_NIC)));
File recipeDir = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/MASCOT1/Recipe/" + cursor1.getString(cursor1.getColumnIndex(Recipe.NAME_NIC)) + "/");
if(!recipeDir.exists()) {
recipeDir.mkdirs();
Log.i("Recipes Dirs", recipeDir.getName());
}
}
cursor1.close();
}
}
Try this solution
@Override
@TargetApi(15)
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
if (row == null) {
row = mActivity.getLayoutInflater().inflate(mLayoutId, null, false);
}
Cursor list_cursor = getCursor();
list_cursor.moveToPosition(position);
if(!list_cursor.isLast()){
list_cursor.moveToNext();
TextView txtSecondCell = (TextView) row.findViewById(R.id.recname_row);
String recipename = list_cursor.getString(list_cursor.getColumnIndex(Recipe.NAME_NIC));
txtSecondCell.setText(recipename);
Log.i(TAG, "Showing List");
}
return row;
}
来源：https://stackoverflow.com/questions/40017700/cursorboundexception-whille-displaying-listview-from-content-provider