ScrollView cannot contain multiple subkeys, ScrollView can host only one direct child

http://debuglog.iteye.com/blog/1441828

ScrollView cannot contain multiple subkeys, ScrollView can host only one direct child Blog Category:

• Android
• Eclipse

javaandroideclipsescrollviewillegalstateexceptionhtml Code

1. Android 2.3.3
2. Eclipse version:3.7.0
3. LogCat

LogCat error message:

Java code

2. 03-: 11.126:error/androidruntime (17173): caused by:java.lang.IllegalStateException: ScrollView can host only one direct child
4. 03-: 11.126:error/androidruntime (17173): at Android.widget.ScrollView.addView ( Scrollview.java:229)
6. 03-: 11.126:error/androidruntime (17173): at Android.view.LayoutInflater.rInflate ( Layoutinflater.java:627)
8. 03-: 11.126:error/androidruntime (17173): at Android.view.LayoutInflater.rInflate ( Layoutinflater.java:626)
10. 03-: 11.126:error/androidruntime (17173): at Android.view.LayoutInflater.inflate ( Layoutinflater.java:408)
12. 03-: 11.126:error/androidruntime (17173): at Android.view.LayoutInflater.inflate ( Layoutinflater.java:)
14. 03-: 11.126:error/androidruntime (17173): at Android.view.LayoutInflater.inflate ( Layoutinflater.java:276)
16. 03-: 11.126:error/androidruntime (17173): at Com.android.internal.policy.impl.PhoneWindow.setContentView (Phonewindow.java:207)
18. 03-: 11.126:error/androidruntime (17173): at Android.app.Activity.setContentView ( Activity.java:1657)
20. 03-: 11.126:error/androidruntime (17173): at Com.tmall.nokia.manage.CopyRight.onResume (Copyright.java:)
22. 03-: 11.126:error/androidruntime (17173): at Android.app.Instrumentation.callActivityOnResume (Instrumentation.java:1150)
24. 03-: 11.126:error/androidruntime (17173): at Android.app.Activity.performResume ( Activity.java:3832)
26. 03-: 11.126:error/androidruntime (17173): at Android.app.ActivityThread.performResumeActivity (Activitythread.java:2110)
28. 03-: 11.126:error/androidruntime (17173): ... More

Cause analysis of error occurred:

ScrollView only supports one subkey.

View the corresponding layout xml

Java code

2. <scrollview xmlns:android="Http://schemas.android.com/apk/res/android"
4. Android:layout_width= "fill_parent" android:layout_height="wrap_content "
6. android:scrollbars="vertical" >
8. <textview android:id="@+id/nokia" android:layout_gravity="center"
10. Android:layout_width= "fill_parent" android:layout_height="wrap_content "
12. Android:textappearance="? Android:attr/textappearancemedium"
14. android:text="@string/text_nokia" ></TextView>
16. <textview android:id="@+id/iphone4s" android:layout_gravity="center"
18. Android:layout_width= "wrap_content" android:layout_height="wrap_content "
20. android:text="@string/text_iphone4s" ></TextView>
22. </ScrollView>

There are two TextView subkeys found in ScrollView.

Workaround:

Set LinearLayout as child in ScrollView, and put other view in LinearLayout.

Java code

2. <scrollview xmlns:android="Http://schemas.android.com/apk/res/android"
4. Android:layout_width= "fill_parent" android:layout_height="wrap_content "
6. android:scrollbars="vertical" >
8. <linearlayout android:id="@+id/tmall"
10. Android:layout_width= "fill_parent" android:layout_height="wrap_content "
12. android:orientation="vertical" >
14. <textview android:id="@+id/nokia" android:layout_gravity="center"
16. Android:layout_width= "fill_parent" android:layout_height="wrap_content "
18. Android:textappearance="? Android:attr/textappearancemedium"
20. android:text="@string/text_nokia" ></TextView>
22. <textview android:id="@+id/iphone4s" android:layout_gravity="center"
24. Android:layout_width= "wrap_content" android:layout_height="wrap_content "
26. android:text="@string/text_iphone4s" ></TextView>
28. </LinearLayout>
30. </ScrollView>

Ps. When editing the layout XML, be aware of the "Error Log" window and the "Graphical Layout" tab of the Layout XML editing window.

ScrollView cannot contain multiple subkeys, ScrollView can host only one direct child