Question

我有一个表，我用SQLite的数据动态创建了这些行。目前，我在表中只有30条记录，但是当我生成包含手头数据的行时，我只看到28行，其他2行丢失。我从我的Log cat中确认我有30条记录。

XML文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!--Table Body-->

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TableLayout
            android:id="@+id/table_body"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:stretchColumns="*">

        </TableLayout>

    </ScrollView>

</LinearLayout>

从SQLite检索作为列表返回的数据的方法。

public List<RosterItem> fetchRoster(){
        List<RosterItem> rosterList = new ArrayList<>();
        String readQuery = "SELECT * FROM " + RosterTable.NAME;


        try{
            mDatabase = mHelper.getWritableDatabase();
            mDatabase.beginTransaction();

            Cursor cursor = mDatabase.rawQuery(readQuery, null);
            //Looping through each row and adding to list
            if(cursor.moveToFirst()){
                do{
                    RosterItem rosterItem = new RosterItem();
                    rosterItem.setSyncNumber(cursor.getInt(cursor.getColumnIndex(RosterTable.Cols.SYNC_NUMBER)));
                    rosterItem.setDate(cursor.getString(cursor.getColumnIndex(RosterTable.Cols.DATE)));
                    rosterItem.setShift(cursor.getString(cursor.getColumnIndex(RosterTable.Cols.SHIFT)));

                    //Add to list
                    rosterList.add(rosterItem);

                }while(cursor.moveToNext());

                cursor.close();
            }
            mDatabase.setTransactionSuccessful();

        }catch(SQLiteException e){
            e.printStackTrace();

        }finally {
           mDatabase.endTransaction();

        }
        mDatabase.close();

        return rosterList;
    }

使用数据的片段。

List<RosterItem> allRosters = dbAdapter.fetchRoster(); // Check for possibility of empty array b4

Log.d(TAG, "Number of items " + allRosters.size());

for(RosterItem roster: allRosters){
    Log.d(TAG, "" +roster.getSyncNumber());

    //Generate contents of table (Table Body)
    int rosterNumber = roster.getSyncNumber();
    String rosterDate = roster.getDate();
    String rosterShift = roster.getShift();

    //Generate table rows
    TableRow row = new TableRow(getContext());
    //Set parameters
    TableRow.LayoutParams tabParams = new TableRow.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
    tabParams.setMargins(2,2,2,2);
    row.setLayoutParams(tabParams); //Necessary in order to be able to set the margins

    String[] colText = {rosterNumber+"", rosterDate, rosterShift};
    for(String text:colText){
        TextView tv = new TextView(getContext());
        tv.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT));
        tv.setGravity(Gravity.CENTER);
        tv.setTextSize(16);
        tv.setPadding(5,5,5,5);

        tv.setText(text);
        tv.setBackgroundColor(Color.WHITE);
        tv.setLayoutParams(tabParams);
        row.addView(tv);

    }
    mTableBody.setBackgroundColor(Color.BLACK);

    mTableBody.addView(row);

}

屏幕截图显示here

Android动态表，最后两行不显示

0 个答案: