Android LayoutWeight = 1 of RadioButton in RBGroup

Question

Here is the Layout

<FrameLayout android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/tab"
    android:orientation="vertical"
    xmlns:android="http://schemas.android.com/apk/res/android">
           <LinearLayout
                android:id="@+id/panel1"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical">
                <EditText
                    android:id="@+id/editText"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:inputType="textMultiLine"
                    android:text="How much is 5 by 5?"
                    android:visibility="visible" />
                <RadioGroup
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">
                    <RadioButton
                        android:id="@+id/radio_1"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:text="10" />
                    <RadioButton
                        android:id="@+id/radio_2"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:text="25" />
                    <RadioButton
                        android:id="@+id/radio_3"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:text="50" />
            </RadioGroup>
        </LinearLayout>
    </FrameLayout>

What I need is: the EditBox is on top, and all radio buttons will share the rest of space below the EditText. For this I use android:layout_weight="1"

When Android App Layout manager loads this Layout from XML then the space is used by radios as expected.

When I build it from code using:

rb.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
                                LinearLayout.LayoutParams.WRAP_CONTENT, 1.0f));

It doesn't.. Radios are all nested upward, not spreaded inside the rest of space. Please, any idea why? And what am I doing wrong?

Thanks.

`what am I doing wrong?` **1** - Get rid of the useless FrameLayout. Nesting layouts is *bad for performances*. Keep your designs *as flat as possible*. **2** - The weighted size must be exactly **0 dp**, for the weights to work. — Phantômaxx, Sep 03 '17 at 10:22
it's not useless. this code will be placed in another container - FrameLayout. Maybe it's bad but for me is the one of the necessary parts. The problem was - see my answer. — , Sep 03 '17 at 10:56
FrameLayout + LinearLayout... You could simply use a PercentRelativeLayout and have a **single** container. — Phantômaxx, Sep 03 '17 at 12:17
in this Questiion I simplified the structure. Between FrameLayout and Linear there is ViewAnimator ). I create a number of Linears dynamically, load'em inside Animator and all that bouquet stays in Frame — , Sep 03 '17 at 14:27

score 0 · Answer 1 · answered Sep 03 '17 at 03:52

0

Delete android:layout_weight of all radiobittons;
Set android:layout_weight=1 to edittext and radiogroup

answered Sep 03 '17 at 03:52

Arthur

769
7
17

1

They're set at runtime. – Sep 03 '17 at 05:25

score 0 · Answer 2 · answered Sep 03 '17 at 10:07

The answer is the next:

The LayoutWeight of RadioButton in RadioGroup will work correct if the correct structure for these parameters is used. In my case it is:

rb.setLayoutParams(new RadioGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 
                                        ViewGroup.LayoutParams.WRAP_CONTENT, 1.0f));

Android LayoutWeight = 1 of RadioButton in RBGroup

2 Answers2