Question

Having some trouble with an ImageButton with a Selector.xml as the drawable source, keep getting the following error when I switch to the Graphical Layout in Eclipse:

Unable to resolve drawable “E:\Programing\Eclipse Workspace\com.commonsware.android.Sandbox\res\drawable-hdpi\keycselector.xml” in attribute “src”
Exception details are logged in Window > Show View > Error Log

This is the ImageButton showing the src being set to the keycselector.xml file:

<ImageButton 
  android:layout_width="127px"
  android:layout_height="match_parent" 
  android:id="@+id/BtnC"  
  android:padding="0px" 
  android:src="@drawable/keycselector">
</ImageButton>  

Here’s the keycselector.xml file, it’s in \res\drawable-hdpi\

<?xml version="1.0" encoding="utf-8"?>
<Selector xmlns:android="http://schemas.android.com/apk/res/android" android:constantSize="true">
    <item android:state_pressed="true" android:drawable="@drawable/keycimagepressed" />
    <item android:state_focused="true" android:drawable="@drawable/keycimagepressed" />
    <item android:drawable="@drawable/keycimage" />
</Selector>

Here’s the trace, no idea what this is trying to say “PI must not start with xml (position:unknown @1:7 in java.io.FileReader@172b8dd)”:

org.xmlpull.v1.XmlPullParserException: PI must not start with xml (position:unknown @1:7 in java.io.FileReader@172b8dd)
at org.kxml2.io.KXmlParser.exception(Unknown Source)
at org.kxml2.io.KXmlParser.error(Unknown Source)
at org.kxml2.io.KXmlParser.parseLegacy(Unknown Source)
at org.kxml2.io.KXmlParser.nextImpl(Unknown Source)
at org.kxml2.io.KXmlParser.next(Unknown Source)
at com.android.layoutlib.bridge.BridgeXmlBlockParser.next(BridgeXmlBlockParser.java:238)
at android.graphics.drawable.Drawable.createFromXml(Drawable.java:721)
at com.android.layoutlib.bridge.ResourceHelper.getDrawable(ResourceHelper.java:150)
at com.android.layoutlib.bridge.BridgeTypedArray.getDrawable(BridgeTypedArray.java:670)
at android.widget.ImageView.(ImageView.java:118)
at android.widget.ImageButton.(ImageButton.java:82)
at android.widget.ImageButton.(ImageButton.java:78)
at sun.reflect.GeneratedConstructorAccessor19.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at android.view.LayoutInflater.createView(LayoutInflater.java:500)
at android.view.BridgeInflater.onCreateView(BridgeInflater.java:77)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:122)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:621)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:621)
at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
at android.view.LayoutInflater.inflate(LayoutInflater.java:296)
at com.android.layoutlib.bridge.Bridge.computeLayout(Bridge.java:397)
at com.android.ide.common.rendering.LayoutLibrary.createLegacySession(LayoutLibrary.java:382)
at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:276)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.renderWithBridge(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.renderWithBridge(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.recomputeLayout(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart$ReloadListener.reloadLayoutSwt(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart$ReloadListener.access$0(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart$ReloadListener$1.run(Unknown Source)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)

Answer 1

Try a lowercase s in selector. If that does not help, get rid of the PI line, which looks like:

<?xml version="1.0" encoding="utf-8"?>

It is complaining about that line, though I am not quite certain why.