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I'm trying to get some sensible positioning of my radiobuttons which are part of a RadioGroup. I was having trouble as my RadioGroup was sitting on top of the rest of my layout design, then I use margins to push the buttons around, the problem here is this works on one or two device layouts only. I thought I struck gold when I discovered I could define my RadioGroup then put in a RelativeLayout below which amongst other things contained one of the RadioButtons, then I repeat twice more. this gives me the layout I desire. Problem is, when I run the code, the RadioButtons act link standalone buttons :(
So two questions,
can I link these buttons back to the Group?
Is there a decent way to be able to define the layout of the RadioGroup Radiobuttons independently of the Group.
I am thinking an alternative may be independent RadioButtons and use code to enable/disable them, but that does kind of defeat the usefulness of RadioGroup.
thanks.
Here is my XML layout should you be curious.
<ScrollView android:id="@+id/scrollview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_below="@id/HDDResultsBox"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:focusable="true"
android:focusableInTouchMode="true"
android:windowSoftInputMode="stateHidden"
>
<RadioGroup android:id="@+id/calcBy"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_below="@id/HDDResultsBox"
>
<RelativeLayout android:id="@+id/intervalBox"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/backgroundbox"
android:layout_margin="5dp"
android:padding="5dp"
>
<TextView android:id="@+id/intervalHeader"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Interval"
android:gravity="left"
android:textColor="#ffffff"
android:textStyle="bold"
android:layout_marginLeft="5dp"
/>
<TextView android:id="@+id/intervalHelpText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Interval help text"
android:gravity="left"
android:textColor="#ffffff"
android:textSize="8dp"
android:layout_toRightOf="@id/intervalHeader"
android:layout_marginLeft="10dp"
/>
<LinearLayout android:id="@+id/interval2ndBox"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="@id/intervalHeader"
android:layout_marginLeft="10dp"
>
<RadioButton android:id="@+id/byInterval"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
/>
<EditText android:id="@+id/intervalValue"
android:layout_width="75dp"
android:layout_height="40dp"
android:text="50"
android:textSize="14sp"
android:gravity="center"
android:inputType="number"
android:layout_marginLeft="20dp"
/>
<Spinner android:id="@+id/intervalType"
android:layout_width="match_parent"
android:layout_height="42dp"
android:drawSelectorOnTop="false"
android:layout_marginTop="1dp"
android:layout_marginLeft="10dp"
android:layout_weight="10"
android:layout_marginRight="2dp"
/>
<SeekBar android:id="@+id/intervalSeek"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:max="100"
android:progress="50"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_marginTop="8dp"
android:layout_weight="7"
/>
</LinearLayout>
</RelativeLayout>
<RelativeLayout android:id="@+id/recordBox"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/backgroundbox"
android:layout_margin="5dp"
android:padding="5dp"
>
<TextView android:id="@+id/recordHeader"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Record Duration"
android:gravity="left"
android:textColor="#ffffff"
android:textStyle="bold"
android:layout_marginLeft="5dp"
/>
<TextView android:id="@+id/recordHelpText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Record help text"
android:gravity="left"
android:textColor="#ffffff"
android:textSize="8dp"
android:layout_toRightOf="@id/recordHeader"
android:layout_marginLeft="10dp"
/>
<LinearLayout android:id="@+id/record2ndBox"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="@id/recordHeader"
android:layout_marginLeft="10dp"
>
<RadioButton android:id="@+id/byrecord"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
/>
<EditText android:id="@+id/recordValue"
android:layout_width="75dp"
android:layout_height="40dp"
android:text="50"
android:textSize="14sp"
android:gravity="center"
android:inputType="number"
android:layout_marginLeft="20dp"
/>
<Spinner android:id="@+id/recordType"
android:layout_width="match_parent"
android:layout_height="42dp"
android:drawSelectorOnTop="false"
android:layout_marginTop="1dp"
android:layout_marginLeft="10dp"
android:layout_weight="10"
android:layout_marginRight="2dp"
/>
<SeekBar android:id="@+id/recordSeek"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:max="100"
android:progress="50"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_marginTop="8dp"
android:layout_weight="7"
/>
</LinearLayout>
</RelativeLayout>
<RelativeLayout android:id="@+id/playBackBox"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/backgroundbox"
android:layout_margin="5dp"
android:padding="5dp"
>
<TextView android:id="@+id/playBackHeader"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Video Length"
android:gravity="left"
android:textColor="#ffffff"
android:textStyle="bold"
android:layout_marginLeft="5dp"
/>
<TextView android:id="@+id/playBackHelpText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="playBack help text"
android:gravity="left"
android:textColor="#ffffff"
android:textSize="8dp"
android:layout_toRightOf="@id/playBackHeader"
android:layout_marginLeft="10dp"
/>
<LinearLayout android:id="@+id/playBack2ndBox"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="@id/playBackHeader"
android:layout_marginLeft="10dp"
>
<RadioButton android:id="@+id/byplayBack"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
/>
<EditText android:id="@+id/playBackValue"
android:layout_width="75dp"
android:layout_height="40dp"
android:text="50"
android:textSize="14sp"
android:gravity="center"
android:inputType="number"
android:layout_marginLeft="20dp"
/>
<Spinner android:id="@+id/playBackType"
android:layout_width="match_parent"
android:layout_height="42dp"
android:drawSelectorOnTop="false"
android:layout_marginTop="1dp"
android:layout_marginLeft="10dp"
android:layout_weight="10"
android:layout_marginRight="2dp"
/>
<SeekBar android:id="@+id/playBackSeek"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:max="100"
android:progress="50"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_marginTop="8dp"
android:layout_weight="7"
/>
</LinearLayout>
</RelativeLayout>
</RadioGroup>
</RelativeLayout>
</ScrollView>
455
Open “res/layout/main. xml” file, add “RadioGroup“, “RadioButton” and a button, inside the LinearLayout . Radio button selected by default. To make a radio button is selected by default, put android:checked="true" within the RadioButton element.
You group radio buttons by drawing them inside a container such as a Panel control, a GroupBox control, or a form. All radio buttons that are added directly to a form become one group. To add separate groups, you must place them inside panels or group boxes.
RadioButton is a two states button which is either checked or unchecked. If a single radio button is unchecked, we can click it to make checked radio button. Once a radio button is checked, it cannot be marked as unchecked by user. RadioButton is generally used with RadioGroup.
To create each radio button option, create a RadioButton in your layout. However, because radio buttons are mutually exclusive, you must group them together inside a RadioGroup . By grouping them together, the system ensures that only one radio button can be selected at a time.
After looking around for a solution it looks the only way to do this is to use individual radio buttons and then programmically control there on/off states.
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