How can I avoid "IllegalStateException: Scrollview can host only one direct child"?

Question

I am using ScrollView in my Android Layout but it shows

IllegalStateException "Scrollview can host only one direct child"

How can I avoid this exception?

Crash info:

07-19 15:58:22.308 21372 21372 D AndroidRuntime: Shutting down VM
07-19 15:58:22.313 21372 21372 E AndroidRuntime: FATAL EXCEPTION: main
07-19 15:58:22.313 21372 21372 E AndroidRuntime: Process: com.languoguang.helloworld, PID: 21372
07-19 15:58:22.313 21372 21372 E AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.languoguang.helloworld/com.languoguang.helloworld.plugin_homeadd.activity.AddDeviceWifiSettingActivity}: android.view.InflateException: Binary XML file line #254: ScrollView can host only one direct child
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3190)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3285)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.ActivityThread.-wrap12(Unknown Source:0)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1887)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.os.Handler.dispatchMessage(Handler.java:108)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.os.Looper.loop(Looper.java:166)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.ActivityThread.main(ActivityThread.java:7412)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at java.lang.reflect.Method.invoke(Native Method)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:245)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:926)
07-19 15:58:22.313 21372 21372 E AndroidRuntime: Caused by: android.view.InflateException: Binary XML file line #254: ScrollView can host only one direct child
07-19 15:58:22.313 21372 21372 E AndroidRuntime: Caused by: java.lang.IllegalStateException: ScrollView can host only one direct child
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.widget.ScrollView.addView(ScrollView.java:292)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.view.LayoutInflater.rInflate(LayoutInflater.java:878)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:835)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.view.LayoutInflater.rInflate(LayoutInflater.java:877)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:835)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.view.LayoutInflater.rInflate(LayoutInflater.java:877)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:835)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:477)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at com.android.internal.policy.HwPhoneWindow.setContentView(HwPhoneWindow.java:313)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.Activity.setContentView(Activity.java:2843)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at com.languoguang.helloworld.plugin_homeadd.activity.AddDeviceWifiSettingActivity.onCreate(AddDeviceWifiSettingActivity.java:82)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.Activity.performCreate(Activity.java:7358)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1218)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3143)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3285)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.ActivityThread.-wrap12(Unknown Source:0)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1887)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.os.Handler.dispatchMessage(Handler.java:108)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.os.Looper.loop(Looper.java:166)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at android.app.ActivityThread.main(ActivityThread.java:7412)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at java.lang.reflect.Method.invoke(Native Method)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:245)
07-19 15:58:22.313 21372 21372 E AndroidRuntime:        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:926)

possible doublicate post: http://stackoverflow.com/questions/3734296/please-help-me-for-putting-scrolling-option-in-a-android-layout — WarrenFaith, Sep 17 '10 at 12:07

score 57 · Accepted Answer · edited May 18 '19 at 12:44

57

You have added more than one controls as children of a ScrollView. If you want to do this add a LinearLayout as a direct child and put the other controls in it.

edited May 18 '19 at 12:44

AskNilesh

67,701
16
123
163

answered Sep 17 '10 at 12:00

kgiannakakis

103,016
27
158
194

I have added two android design support library widgets as direct child of scrollview and this was the cause of crash but resolved by putting them in the parent linearlayout – cammando Mar 19 '17 at 10:51

score 4 · Answer 2 · answered Sep 17 '10 at 20:35

4

You can avoid IllegalStateException :Scollview can host only one direct child by only hosting one direct child in your scrollview

answered Sep 17 '10 at 20:35

Falmarri

47,727
41
151
191

score 4 · Answer 3 · answered May 29 '17 at 12:44

4

My problem with same exception was that I tried to show a Snackbar warning to user with a view as a parameter to show it. That view was inside scrollview, and it was breaking the hierarchy somehow. When i switched back to Toast, exception gone away.

answered May 29 '17 at 12:44

shtolik

1,341
22
29

score 3 · Answer 4 · answered May 13 '18 at 12:14

inside ScrollView must contain only one layout otherwise its contain multiple layouts or views it get error.

This sample code solve your problem,

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">
  <!-- here add your views -->

    </LinearLayout>
</ScrollView>

Sample below code wrong

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

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

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

    </LinearLayout>
</ScrollView>

Parent layout must

score 1 · Answer 5 · answered Oct 26 '18 at 01:51

This happened for me when using Fragments and having ScrollView as root view of the Fragment. The problem was accidentally instantiating the Fragment into a <fragment> element in XML; this is an error because it was instantiating it twice, once when inflating the layout XML and once in my app code. It was fixed after changing <fragment> to <FrameLayout>.

score 0 · Answer 6 · answered Jun 05 '14 at 01:13

0

If you are using fragments and SlidingPane, check if you are using tags in your xml layout of your SlidingPane, then replace by and add your fragments at runtime on oncreateView of your SlidingPane. =]

answered Jun 05 '14 at 01:13

Charleston

1,539
18
10

score 0 · Answer 7 · answered Jul 19 '18 at 11:08

0

You have to add only one child to scroll layout not more than that .

answered Jul 19 '18 at 11:08

Deven

684
7
10

How can I avoid "IllegalStateException: Scrollview can host only one direct child"?

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