The scroll bar of view is not a reason of exception.
The app failed when i'm trying to change orientation.
On Sat, Jan 17, 2009 at 4:27 PM, EvgenyV <evgen...@gmail.com> wrote:
>
> Hi all,
>
> I'm trying to set vertical scrollbar programmatically. But get
> following error stack on creation:
>
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464):
> java.lang.NullPointerException
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.View.onDrawScrollBars(View.java:4684)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.View.draw(View.java:5490)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.widget.FrameLayout.draw(FrameLayout.java:324)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.ViewGroup.drawChild(ViewGroup.java:1436)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.ViewGroup.dispatchDraw(ViewGroup.java:1208)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.View.draw(View.java:5355)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.widget.FrameLayout.draw(FrameLayout.java:324)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.ViewGroup.drawChild(ViewGroup.java:1436)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.ViewGroup.dispatchDraw(ViewGroup.java:1208)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.ViewGroup.drawChild(ViewGroup.java:1434)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.ViewGroup.dispatchDraw(ViewGroup.java:1208)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.View.draw(View.java:5355)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.widget.FrameLayout.draw(FrameLayout.java:324)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> com.android.internal.policy.impl.PhoneWindow$DecorView.draw
> (PhoneWindow.java:1701)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.ViewRoot.draw(ViewRoot.java:980)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.ViewRoot.performTraversals(ViewRoot.java:829)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.view.ViewRoot.handleMessage(ViewRoot.java:1103)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.os.Handler.dispatchMessage(Handler.java:88)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.os.Looper.loop(Looper.java:123)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> android.app.ActivityThread.main(ActivityThread.java:3742)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> java.lang.reflect.Method.invokeNative(Native Method)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> java.lang.reflect.Method.invoke(Method.java:515)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
> (ZygoteInit.java:739)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:497)
> 01-17 13:33:12.944: ERROR/AndroidRuntime(464): at
> dalvik.system.NativeStart.main(Native Method)
>
> There is a very simple java code and xml layout:
> public class BBB extends Activity
> {
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.bbb);
>
>
> int orient =
> getWindow().getWindowManager().getDefaultDisplay
> ().getOrientation();
> if(orient== 1)
> {
> ScrollView viewMain = (ScrollView)findViewById
> (R.id.layoutInputs1);
> viewMain.setVerticalScrollBarEnabled(true);
> }
>
> }
>
> }
>
> <ScrollView xmlns:android="http://schemas.android.com/apk/res/android";
> android:orientation="vertical"
> android:layout_width="fill_parent"
> android:layout_height="fill_parent"
> android:id="@+id/layoutInputs1"
> android:scrollbars="none"
>
> >
>
> <LinearLayout
> android:layout_width="fill_parent"
> android:layout_height="fill_parent"
> android:orientation="vertical"
> android:id="@+id/layoutInputs2"
> >
>
> <TextView
> style="?android:attr/listSeparatorTextViewStyle"
> android:text="test-test-test"
> android:textColor="#FFFFFF"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"/>
> </LinearLayout>
> </ScrollView>
>
> Looks like I'm missing somethind...
> Any ideas?
>
> Thanks in advance,
> Evgeny
>
>
> >
>
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