使用简单的适配器无法查看数据Sqlite

我有一个列表视图显示我的sqlite表。我尝试使用Aray Adapter来显示我的第一次体验，并显示了所有字段，但它很乱。我想让他们看起来像一个三列的表。我尝试从this link的回答中实现代码，这里是我的代码。使用简单的适配器无法查看数据Sqlite

if (Globals.listoff == null){Globals.listoff = dataSource.getAllproductoff();} 
       adapter = new MySimpleAdapter(ViewDataOff.this,dataSource.getAllproductoff() , R.layout.item_list_offeringpro, 
       new String[] { "one", "two","three" }, 
       new int[] { R.id.edmodul, R.id.edtype,R.id.edtype, R.id.edwinningpro}); 
       adapter.notifyDataSetChanged(); 
       setListAdapter(adapter);

这里是我的DBDataSource.java

public ArrayList<HashMap<String,Object>> getAllproductoff() { 
    ArrayList<HashMap<String, Object>> listoff = new ArrayList<HashMap<String, Object>>(); 
    Cursor cursor = database.query(DBHelper.TABLE_NAME, 
      allColumns, null, null, null, null, null); 
    cursor.moveToFirst(); 
    while (!cursor.isAfterLast()) { 
     HashMap<String, Object> map1 = new HashMap<String, Object>(); 
     map1.put("one", cursor.getLong(cursor.getColumnIndex(DBHelper.COLUMN_ID))); 
     map1.put("two", cursor.getString(cursor.getColumnIndex(DBHelper.COLUMN_DESCRIPTION))); 
     map1.put("three", cursor.getString(cursor.getColumnIndex(DBHelper.COLUMN_PRICE))); 
     listoff.add(map1); 
     cursor.moveToNext(); 
    } 
    cursor.close(); 
    return listoff; 
}

，这里是MySimpleAdapter.java

public class MySimpleAdapter extends SimpleAdapter { 
Context localcontext = null; 
public MySimpleAdapter(Context context,ArrayList<HashMap<String, Object>> data, int resource, String[] from, int[] to) { 
    super(context, data, resource, from, to); 
    localcontext = context; 
} 

public View getView(int position, View convertView, ViewGroup parent) { 
    View view = super.getView(position, convertView, parent); 
    return view; 
}

}

这是我的错误日志

02-21 09:48:21.259: E/AndroidRuntime(21895): FATAL EXCEPTION: main 
02-21 09:48:21.259: E/AndroidRuntime(21895): java.lang.ArrayIndexOutOfBoundsException: length=3; index=3 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.SimpleAdapter.bindView(SimpleAdapter.java:160) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.SimpleAdapter.createViewFromResource(SimpleAdapter.java:126) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.SimpleAdapter.getView(SimpleAdapter.java:114) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at ims.app.mobileorder.MySimpleAdapter.getView(MySimpleAdapter.java:22) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.AbsListView.obtainView(AbsListView.java:2271) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.ListView.makeAndAddView(ListView.java:1769) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.ListView.fillDown(ListView.java:672) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.ListView.fillFromTop(ListView.java:733) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.ListView.layoutChildren(ListView.java:1622) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.AbsListView.onLayout(AbsListView.java:2106) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.View.layout(View.java:13932) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.ViewGroup.layout(ViewGroup.java:4498) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1693) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1551) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.LinearLayout.onLayout(LinearLayout.java:1456) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.View.layout(View.java:13932) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.ViewGroup.layout(ViewGroup.java:4498) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.FrameLayout.onLayout(FrameLayout.java:460) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.View.layout(View.java:13932) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.ViewGroup.layout(ViewGroup.java:4498) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1693) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1551) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.LinearLayout.onLayout(LinearLayout.java:1456) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.View.layout(View.java:13932) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.ViewGroup.layout(ViewGroup.java:4498) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.widget.FrameLayout.onLayout(FrameLayout.java:460) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.View.layout(View.java:13932) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.ViewGroup.layout(ViewGroup.java:4498) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1874) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1695) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1002) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4290) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.Choreographer.doCallbacks(Choreographer.java:555) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.Choreographer.doFrame(Choreographer.java:525) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.os.Handler.handleCallback(Handler.java:615) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.os.Handler.dispatchMessage(Handler.java:92) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.os.Looper.loop(Looper.java:137) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at android.app.ActivityThread.main(ActivityThread.java:4803) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at java.lang.reflect.Method.invokeNative(Native Method) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at java.lang.reflect.Method.invoke(Method.java:511) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556) 
02-21 09:48:21.259: E/AndroidRuntime(21895): at dalvik.system.NativeStart.main(Native Method)

感谢您的帮助..所有将不胜感激。

来源

2014-02-21 WardaLyn

@WL是否解决了您的问题？ –

更改cursor.moveToNext();使你的代码是这样的

if (cursor.moveToFirst()) { 
    do { 
     HashMap<String, Object> map1 = new HashMap<String, Object>(); 
     map1.put("one", cursor.getLong(cursor.getColumnIndex(DBHelper.COLUMN_ID))); 
     map1.put("two", cursor.getString(cursor.getColumnIndex(DBHelper.COLUMN_DESCRIPTION))); 
     map1.put("three", cursor.getString(cursor.getColumnIndex(DBHelper.COLUMN_PRICE))); 
     listoff.add(map1); 
    } while (cursor.moveToNext()); 
}

来源

2014-02-21 03:24:12 DreamBigAlvin

定义cursor.moveToNext();你外面做，而像始终使用前检查getCount。

if(cursor!=null && cursor.getCount()>0){ 
cursor.moveToNext(); 
do { 
    HashMap<String, Object> map1 = new HashMap<String, Object>(); 
    map1.put("one", cursor.getLong(cursor.getColumnIndex(DBHelper.COLUMN_ID))); 
    map1.put("two", cursor.getString(cursor.getColumnIndex(DBHelper.COLUMN_DESCRIPTION))); 
    map1.put("three", cursor.getString(cursor.getColumnIndex(DBHelper.COLUMN_PRICE))); 
    listoff.add(map1); 
} while (cursor.moveToNext()); 
}

来源

2014-02-21 03:36:56

使用简单的适配器无法查看数据Sqlite

回答

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