The use of Android RadioButton and checkboxes-android Learning Journey (19)

Introduction to RadioButton and checkboxes

The radio button (RadioButton) and check box (checkbox) Inherit the button, so the property is set to the button almost, but adds a android:chencked property.
Used to set whether or not to be selected.

The difference between a RadioButton and a checkbox

The former if only one of the groups can only be selected, once is usually used with Radiogroup, the latter is not limited.

Instance

<LinearLayout xmlns:android="Http://schemas.android.com/apk/res/android"    Xmlns:tools="Http://schemas.android.com/tools" Android:layout_width="Match_parent"    Android:layout_height="Match_parent" Android:paddingleft="@dimen/activity_horizontal_margin"    Android:paddingright="@dimen/activity_horizontal_margin"    Android:paddingtop="@dimen/activity_vertical_margin"    Android:paddingbottom="@dimen/activity_vertical_margin"    Tools:context=". Mainactivity "    android:orientation="Vertical">  <TableRow android:layout_width="Wrap_content"android:layout_height= "Wrap_content">            <TextView android:layout_width="Wrap_content"android:layout_height ="Wrap_content"android:text="Gender:"android:textsize="16px" />                                    <radiogroup  android:o Rientation  = "horizontal"  android:id  =< Span class= "Hljs-value" > "@+id/rg"  android:layout_gravity  =" center_horizontal " android:layout_width  =" match_parent " android:layout_height  =" wrap_content ";           <RadioButtonandroid:layout_width="Wrap_content"android:layout_height ="Wrap_content"android:text= "male"android:checked="true"/>                                                                   <RadioButtonandroid:layout_width="Wrap_content"android:layout_ Height="Wrap_content"android:text="female" />                                                    </radiogroup>  </TableRow>    <TableRow android:layout_height="Wrap_content"android:layout_width= "Wrap_content">                <TextView android:layout_width="Wrap_content"android:layout_ Height="Wrap_content"android:text="Favorite Color"android:textsize= "16px"/>                                            <CheckBox android:layout_width="Wrap_content"android:layout_height= "Wrap_content" Android:text="Red"/>                                <CheckBox android:layout_width="Wrap_content"android:layout_height ="Wrap_content"android:text="Blue"/>                                <CheckBox android:layout_width="Wrap_content"android:layout_height= "Wrap_content" Android:text="green"/>                            </TableRow>    <TableRow android:layout_height="Match_parent"android:layout_ Width="Match_parent">                <TextViewandroid:layout_width="Wrap_content"android:layout_height= "Wrap_content" Android:text="show"/>                                        </TableRow></linearlayout>

The use of Android RadioButton and checkboxes-android Learning Journey (19)