No orientation Specified while adding Tab Widget

Question

I created a new Android Project in eclipse and trying to add Tab Widget but I am getting an error saying "No orientation specified, and the default is horizontal. This is a common source of bugs when children are added dynamically." I tried putting android:orientation="horizontal"> Can anyone tell me how to resolve this problem?

Code is:

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.checktabs.MainActivity$PlaceholderFragment" >

    <TabHost
        android:id="@android:id/tabhost"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="43dp" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" >

            <TabWidget
                android:id="@android:id/tabs"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" >
            </TabWidget>

            <FrameLayout
                android:id="@android:id/tabcontent"
                android:layout_width="match_parent"
                android:layout_height="match_parent" >

                <LinearLayout  <-error->
                    android:id="@+id/tab1"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" >
                </LinearLayout>

                <LinearLayout   <-error->
                    android:id="@+id/tab2"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" >
                </LinearLayout>

                <LinearLayout   <-error->
                    android:id="@+id/tab3"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" >
                </LinearLayout>
            </FrameLayout>
        </LinearLayout>
    </TabHost>

</RelativeLayout>

Could you please post your logcat error here ? – Zusee Weekin May 23 '14 at 03:40 — Zusee Weekin, May 23 '14 at 03:40
LogCat is showing no errors. – user3552386 May 23 '14 at 03:47 — user3552386, May 23 '14 at 03:47

score 1 · Answer 1 · answered May 23 '14 at 06:09

1

In your case, just remove all Linear Layouts from Frame layout and try to add your tab dynamically from activity.

View this example for more details. Android TabWidget Example

answered May 23 '14 at 06:09

Pragnesh Ghoda シ

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matiash · Answer 2 · 2014-05-23T03:48:20.050

0

Due to lint rules, the android:orientation attribute is mandatory for all LinearLayout items in xml layouts.

See https://android-review.googlesource.com/#/c/49060/2/lint/libs/lint_checks/src/main/java/com/android/tools/lint/checks/InefficientWeightDetector.java

You just need to add whatever orientation you will need (most likely, vertical).

edited May 23 '14 at 03:48

answered May 23 '14 at 03:41

matiash

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I don't think so. According to the documentation it says default is horizontal. Check: http://developer.android.com/reference/android/widget/LinearLayout.html#attr_android%3aorientation So if we didn't add anything it should be horizontal. – Zusee Weekin May 23 '14 at 03:59
@ZuseeWeekin Yes, the default is horizontal. That is precisely why the warning was added: it most cases the orientation you want is vertical (i.e. one view below the other). – matiash May 23 '14 at 14:35

No orientation Specified while adding Tab Widget

2 Answers2