Android: Preloaded Database to table layout view

问题

Im stuck trying to figure out how to pull the information from my pre-populated database that is in my assets folder to display in a tablelayout view. If you know of any clear tutorials or if you know how to do it could you please help me out.

Example of what I mean:

Database example:

            Mountains      Valleys    Rivers      Oceans

Vermount yes no yes no

kentucky no yes yes no

South Dakota yes no no no

(In the app if I was to display a specific row then the tablelayout should appear like this)

TableLayout View

           South Dakota         <--(I know how to put the header)

      Mountains       yes
      Valleys          no
      Rivers           no
      Oceans           no

回答1:

I had to do something similar, but didn't need a cursor. Here is what I ended up doing for my project. It takes in a dialog that displays the infinite progress spinner.

private class AsyncPop extends AsyncTask<Dialog, Integer, ScrollView>
{
    @Override
    protected void onPostExecute( ScrollView result )
    {
        setContentView( result );
        super.onPostExecute( result );
    }

    @Override
    protected ScrollView doInBackground( Dialog... params )
    {
        Dialog d = params[0];

        Connection con = StaticDBHelper.getCon( TabActivityDetail.this.getParent() );
        Statement st = null;

        List<Timestamp> date = new ArrayList<Timestamp>();
        List<String> text = new ArrayList<String>();
        try
        {
            st = con.createStatement();
            String sql = "select activityDateTime, detailText from xfu_ActivityDetail order by activityDateTime desc";
            st.execute( sql );
            ResultSet rs = st.getResultSet();

            while( rs.next() )
            {
                date.add( rs.getTimestamp( "activityDateTime" ) );
                text.add( rs.getString( "detailText" ) );
            }
            rs.close();

        }
        catch( SQLException e )
        {
            //Can't do a whole lot about it right now, should log
        }
        finally
        {
            if( null != st )
            {
                try
                {
                    st.close();
                }
                catch( SQLException e )
                {
                    //Just ignore it, should log
                }
            }
        }
        //Formatting
        ViewGroup.LayoutParams textBoxp1 = new ViewGroup.LayoutParams( 130, ViewGroup.LayoutParams.WRAP_CONTENT );
        ViewGroup.LayoutParams textBoxp2 = new ViewGroup.LayoutParams( ViewGroup.LayoutParams.FILL_PARENT,
                ViewGroup.LayoutParams.WRAP_CONTENT );
        TableRow.LayoutParams rowp1 = new TableRow.LayoutParams( 130, TableRow.LayoutParams.WRAP_CONTENT );
        TableRow.LayoutParams rowp2 = new TableRow.LayoutParams( TableRow.LayoutParams.FILL_PARENT,
                TableRow.LayoutParams.WRAP_CONTENT );
        TableLayout.LayoutParams table1 = new TableLayout.LayoutParams( TableLayout.LayoutParams.FILL_PARENT,
                TableLayout.LayoutParams.FILL_PARENT );

        TableLayout tableView = new TableLayout( _context );
        tableView.setLayoutParams( table1 );
        if( date.size() == 0 )
        {
            TextView dateView = new TextView( _context );
            dateView.setText( "No activity details availible for given filter" );
            dateView.setTypeface( Typeface.DEFAULT, Typeface.BOLD );

            TableRow row = new TableRow( _context );
            row.setLayoutParams( new LayoutParams( LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT ) );
            row.addView( dateView );
            tableView.addView( row, new TableLayout.LayoutParams( LayoutParams.FILL_PARENT,
                    LayoutParams.WRAP_CONTENT ) );
        }
        else
        {
            for( int index = -1; index < date.size(); index++ )
            {
                TableRow row = new TableRow( _context );
                TextView dateView = new TextView( _context );
                TextView textView = new TextView( _context );

                if( index == -1 )
                {
                    dateView.setText( "Date / Time" );
                    textView.setText( "Detail Text" );
                    dateView.setTypeface( Typeface.DEFAULT, Typeface.BOLD );
                    textView.setTypeface( Typeface.DEFAULT, Typeface.BOLD );
                }
                else
                {
                    dateView.setText( LoaderV5._fm.format( date.get( index ) ) );
                    textView.setText( text.get( index ) );
                }
                dateView.setLayoutParams( textBoxp1 );
                textView.setLayoutParams( textBoxp2 );

                row.setLayoutParams( rowp2 );
                row.addView( dateView, rowp1 );
                row.addView( textView, rowp2 );
                tableView.addView( row, table1 );
            }
        }
        //tableView.setColumnShrinkable( 1, true );

        HorizontalScrollView otherscroller = new HorizontalScrollView( _context );
        otherscroller.addView( tableView );

        ScrollView scroller = new ScrollView( _context );
        scroller.addView( otherscroller );
        scroller.setHorizontalScrollBarEnabled( true );

        d.dismiss();
        return scroller;
    }
}

回答2:

Why are you want to add it in TableLayout?

Just fetch data from SQLite database and using custom adapter use ListView.

So use Multicolumn ListView to set all values in column type,

Look at Multicolumn ListView in Android

Android – Multi Column ListView

回答3:

I believe you need to copy the Database file out from your assets folder to somewhere else before you can use it

This question has related content Android: Accessing assets folder sqlite database file with .sqlite extension

来源：https://stackoverflow.com/questions/7970609/android-preloaded-database-to-table-layout-view