Question

I am trying to add the button dynamically when list is empty i.e no data to populate the list. I tried the below code and it not working

public class TableDemoActivity extends Activity {

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);

            LinearLayout linearLayout = (LinearLayout) findViewById(R.id.linear);

            Button test = new Button(this);
            test.setText("Hello Android");
            test.setId(5);
            test.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams(LayoutParams.FILL_PARENT,
                    LayoutParams.WRAP_CONTENT));

            linearLayout.addView(test);

        }

    }

Here is the layout file contents

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

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/linear"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

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

    <TableRow
        android:id="@+id/AcctHeader"
    >
    </TableRow>

    <ExpandableListView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/BankExpandableListView"
        android:layout_width="fill_parent"
        android:layout_height="443dp"
        android:layout_weight="1.32"
    >
    </ExpandableListView>

</TableLayout>
</LinearLayout>

Answer 1

You can put your button in xml layout file and do visible & invisible as per your condition

if(your condition)
{
button.setVisibility(View.VISIBLE);
}
else
{
button.setVisibility(View.GONE);
}