TableLayout android exam

TableLayout

The TableLayout groups views into rows and columns. You use the <TableRow> element to designate a row in the table. Each row can contain one or more views. Each view you place within a row forms a cell. The width for each column is determined by the largest width of each cell in that column.
Populate main.xml with the following elements and observe the UI as shown in Figure 7.

<?xml version="1.0" encoding="utf-8"?>
<TableLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="fill_parent" 
    android:layout_width="fill_parent"
    android:background="#000044">
    <TableRow> 
        <TextView 
            android:text="User Name:"
            android:width ="120px"
            />
        <EditText 
            android:id="@+id/txtUserName" 
            android:width="200px" />
    </TableRow> 
    <TableRow>
        <TextView 
            android:text="Password:"
            />
        <EditText 
            android:id="@+id/txtPassword" 
            android:password="true" 
            />
    </TableRow>
    <TableRow>
        <TextView />
        <CheckBox android:id="@+id/chkRememberPassword"
            android:layout_width="fill_parent" 
            android:layout_height="wrap_content"
            android:text="Remember Password"
            />   
    </TableRow>
    <TableRow>
        <Button 
            android:id="@+id/buttonSignIn" 
            android:text="Log In" />
    </TableRow>
</TableLayout>

Figure 7 Using the TableLayout

Note that in the above example, there are two columns and four rows in the TableLayout. The cell directly under the Password TextView is populated with an empty element. If you don't do this, the Remember Password checkbox will then appear under the Password TextView, like that shown in Figure 8.

Figure 8 Note the change in the position of the Remember Password view