Adding data row dynamically

Question

I'm using eclipse + android SDK.

I'm trying to create a table with data provided by sensors. I get the information correctly, by i'm having problems to make a table to show it in XML dinamically.

This is the sensorinfo.XML:

<?xml version="1.0" encoding="utf-8"?>

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:stretchColumns="1"
android:id="@+id/SensorInfoTableLayout">


<TableRow>

    <TextView
            android:layout_column="1"
            android:text="@string/sensor_name_title"
            android:padding="3dip" />

    <TextView
            android:layout_column="2"
            android:text="@string/sensor_type_title"
            android:padding="3dip" />
    <TextView
            android:layout_column="3"
            android:text="@string/sensor_value_title"
            android:padding="3dip" />
    <TextView
            android:layout_column="4"
            android:text="@string/sensor_unit_title"
            android:padding="3dip" />
</TableRow>

   <View
    android:layout_height="4dip"
    android:background="#FF909090" />

</TableLayout>

And this is the code of my activity:

@Override
public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState); 

    getSensorInfo();
    setContentView(R.layout.sensorinfo);

    setInfoByView();

}

And

    private void setInfoByView()
{
    /* Find Tablelayout defined in xml */
    TableLayout myTableLayout = (TableLayout)findViewById(R.id.SensorInfoTableLayout);
    /* Create a new row to be added. */
    TableRow myTableRow = new TableRow(this);
    myTableRow.setLayoutParams(new LayoutParams(
                        LayoutParams.WRAP_CONTENT,
                        LayoutParams.WRAP_CONTENT));
    /* Create a Button to be the row-content. */
    Button b = new Button(this);
    b.setText("Dynamic Button");
    b.setLayoutParams(new LayoutParams(
                        LayoutParams.WRAP_CONTENT,
                        LayoutParams.WRAP_CONTENT));
    myTableRow.setBackgroundColor(5);
    /* Add Button to row. */
    myTableRow.addView(b);
    /* Add row to TableLayout. */
    myTableLayout.addView(myTableRow,new TableLayout.LayoutParams(
              LayoutParams.WRAP_CONTENT,
              LayoutParams.WRAP_CONTENT));
}

THIS IS A TEST, i'm trying to include a button dinamically, if work, i will put the information i get from getSensorInfo();

But my Activity looks like this:

ACTIVITY IMAGE

What could I be doing wrong?

All the info i found was THIS, but the answers didn't help me.

vgonisanz · Accepted Answer · 2012-01-10 14:29:56Z

First of all create one Table Layout in your XML file like this :

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#BFD6E8">

<ScrollView android:id="@+id/image_scroll"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">

    <TableLayout android:id="@+id/image_table"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content">
    </TableLayout>

</ScrollView>

</LinearLayout>

Then use this code for creating dynamic row inside the Table Layout :

         TableLayout image_table=null;
         image_table=(TableLayout)findViewById(R.id.image_table);

        for(int i=0; i<10; i++){
            TableRow tableRow=new TableRow(this);
            tableRow.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
            tableRow.setGravity(Gravity.CENTER_HORIZONTAL);
            tableRow.setPadding(5, 5, 5, 5);
            for(int j=0; j<1; j++){
                Button bttn=new Button(this);
                bttn.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
                bttn.setText(Hello);
                tableRow.addView(image, 200, 200);
            }
            image_table.addView(tableRow);
        }

FINAL (test) SOLUTION:

private void setInfoByView2()
{
    TableLayout myTableLayout = null;
    TableRow myTableRow = new TableRow(this);
    myTableLayout = (TableLayout)findViewById(R.id.SensorInfoTableLayout);

    myTableRow.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
    //myTableRow.setGravity(Gravity.CENTER_HORIZONTAL);
    myTableRow.setPadding(5, 5, 5, 5);
    Button bttn = new Button(this);
    bttn.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
    bttn.setText("Hello");
    myTableRow.addView(bttn, 200, 200);
    myTableLayout.addView(myTableRow);
}

And the button is visible now.

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