ScrollView不能包含多个子项,ScrollView can host only one direct child

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Android 2.3.3Eclipse Version: 3.7.0LogCat

LogCat 报错信息:

03-06 11:32:11.126: ERROR/AndroidRuntime(17173): Caused by: java.lang.IllegalStateException: ScrollView can host only one direct child 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at android.widget.ScrollView.addView(ScrollView.java:229) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at android.view.LayoutInflater.rInflate(LayoutInflater.java:627) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at android.view.LayoutInflater.rInflate(LayoutInflater.java:626) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at android.view.LayoutInflater.inflate(LayoutInflater.java:408) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at android.app.Activity.setContentView(Activity.java:1657) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at com.tmall.nokia.manage.CopyRight.onResume(CopyRight.java:50) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1150) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at android.app.Activity.performResume(Activity.java:3832) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2110) 03-06 11:32:11.126: ERROR/AndroidRuntime(17173): ... 12 more 

发生错误原因分析:

ScrollView仅支持一个子项。

查看对应的layout xml

<ScrollView xmlns:androandroid:layout_width="fill_parent" android:layout_height="wrap_content"android:scrollbars="vertical"><TextView android: android:layout_gravity="center"android:layout_width="fill_parent" android:layout_height="wrap_content"android:textAppearance="?android:attr/textAppearanceMedium"android:text="@string/text_nokia"></TextView><TextView android: android:layout_gravity="center"android:layout_width="wrap_content" android:layout_height="wrap_content"android:text="@string/text_iphone4s"></TextView></ScrollView>

发现ScrollView中有两个TextView子项。

解决办法:

在ScrollView 中设LinearLayout为子项 ,将其它View放入LinearLayout。

<ScrollView xmlns:androandroid:layout_width="fill_parent" android:layout_height="wrap_content"android:scrollbars="vertical"><LinearLayout android:android:layout_width="fill_parent" android:layout_height="wrap_content"android:orientation="vertical"><TextView android: android:layout_gravity="center"android:layout_width="fill_parent" android:layout_height="wrap_content"android:textAppearance="?android:attr/textAppearanceMedium"android:text="@string/text_nokia"></TextView><TextView android: android:layout_gravity="center"android:layout_width="wrap_content" android:layout_height="wrap_content"android:text="@string/text_iphone4s"></TextView></LinearLayout></ScrollView>

PS。在编辑layout xml时应注意“Error Log”窗口与layout xml编辑窗口的“Graphical Layout”选项卡。



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