Error encountered while duplicating sample project (written in XAML)

[yeskunall]

Hey guys :wave:

I tried replicating the sample project written in XAML, and I've run into this error, as shown below:

Bridge [resources.resolve.theme] Failed to find '?attr/selectableItemBackgroundBorderless' in current theme. Trying to load class android.support.v4.widget.Space Bridge [resources.resolve.theme] Failed to find '?attr/selectableItemBackgroundBorderless' in current theme. Trying to load class android.support.v4.widget.Space Bridge [resources.resolve.theme] Failed to find '?attr/selectableItemBackgroundBorderless' in current theme. Trying to load class android.support.v4.widget.Space Bridge [resources.resolve.theme] Failed to find '?attr/selectableItemBackgroundBorderless' in current theme. Trying to load class android.support.v4.widget.Space Bridge [resources.resolve.theme] Failed to find '?attr/selectableItemBackgroundBorderless' in current theme. Trying to load class android.support.v4.widget.Space mono.android.DesignerException: java.lang.NullPointerException at mono.android.DesignerException.fromThrowable(DesignerException.java:46) at mono.android.DesignerSession.checkRenderResultForError(DesignerSession.java:187) at mono.android.DesignerSession.load(DesignerSession.java:239) at mono.android.DesignerSession.processMessage(DesignerSession.java:702) at mono.android.MessageListener.executeMessage(MessageListener.java:88) at mono.android.MessageListener$Runner.run(MessageListener.java:44) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.NullPointerException at android.graphics.Canvas_Delegate.native_getClipBounds(Canvas_Delegate.java:457) at android.graphics.Canvas.native_getClipBounds(Canvas.java) at android.graphics.Canvas.getClipBounds(Canvas.java:949) at android.text.Layout.getLineRangeForDraw(Layout.java:494) at android.text.Layout.draw(Layout.java:241) at android.text.BoringLayout.draw(BoringLayout.java:407) at android.widget.TextView.onDraw(TextView.java:5862) at android.view.View.draw(View.java:17071) at android.view.View.draw(View.java:16979) at android.view.ViewGroup.drawChild_Original(ViewGroup.java:3764) at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:61) at android.view.ViewGroup.drawChild(ViewGroup.java:3764) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550) at android.view.View.draw(View.java:16977) at android.view.ViewGroup.drawChild_Original(ViewGroup.java:3764) at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:61) at android.view.ViewGroup.drawChild(ViewGroup.java:3764) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550) at android.view.View.draw(View.java:17074) at android.view.View.draw(View.java:16979) at android.view.ViewGroup.drawChild_Original(ViewGroup.java:3764) at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:61) at android.view.ViewGroup.drawChild(ViewGroup.java:3764) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550) at android.view.View.draw(View.java:16977) at android.view.ViewGroup.drawChild_Original(ViewGroup.java:3764) at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:61) at android.view.ViewGroup.drawChild(ViewGroup.java:3764) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550) at android.view.View.draw(View.java:17074) at android.view.View.draw(View.java:16979) at android.view.ViewGroup.drawChild_Original(ViewGroup.java:3764) at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:61) at android.view.ViewGroup.drawChild(ViewGroup.java:3764) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550) at android.view.View.draw(View.java:16977) at android.view.ViewGroup.drawChild_Original(ViewGroup.java:3764) at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:61) at android.view.ViewGroup.drawChild(ViewGroup.java:3764) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550) at android.view.View.draw(View.java:16977) at android.view.ViewGroup.drawChild_Original(ViewGroup.java:3764) at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:61) at android.view.ViewGroup.drawChild(ViewGroup.java:3764) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550) at android.view.View.draw(View.java:16977) at android.view.ViewGroup.drawChild_Original(ViewGroup.java:3764) at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:61) at android.view.ViewGroup.drawChild(ViewGroup.java:3764) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550) at android.view.View.draw(View.java:17074) at com.android.layoutlib.bridge.impl.RenderSessionImpl.renderAndBuildResult(RenderSessionImpl.java:401) at com.android.layoutlib.bridge.impl.RenderSessionImpl.renderAndBuildResult(RenderSessionImpl.java:548) at com.android.layoutlib.bridge.impl.RenderSessionImpl.render(RenderSessionImpl.java:422) at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:434) at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:368) at mono.android.DesignerSession.load(DesignerSession.java:233) ... 4 more

Any idea why this might be happening? This is what my styles.xml file looks like, if that's relevant:

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

  <style name="MainTheme" parent="MainTheme.Base">
  </style>
  <!-- Base theme applied no matter what API -->
  <style name="MainTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar">
    <!--If you are using revision 22.1 please use just windowNoTitle. Without android:-->
    <item name="windowNoTitle">true</item>
    <!--We will be using the toolbar so no need to show ActionBar-->
    <item name="windowActionBar">false</item>
    <!-- Set theme colors from http://www.google.com/design/spec/style/color.html#color-color-palette -->
    <!-- colorPrimary is used for the default action bar background -->
    <item name="colorPrimary">#2196F3</item>
    <!-- colorPrimaryDark is used for the status bar -->
    <item name="colorPrimaryDark">#1976D2</item>
    <!-- colorAccent is used as the default value for colorControlActivated
         which is used to tint widgets -->
    <item name="colorAccent">#FF4081</item>
    <!-- You can also set colorControlNormal, colorControlActivated
         colorControlHighlight and colorSwitchThumbNormal. -->
    <item name="windowActionModeOverlay">true</item>

    <item name="android:datePickerDialogTheme">@style/AppCompatDialogStyle</item>
  </style>

  <style name="AppCompatDialogStyle" parent="Theme.AppCompat.Light.Dialog">
    <item name="colorAccent">#FF4081</item>
  </style>
</resources>

Thanks for all the work you've put into this library! Appreciate all the help. ❤️

[henningms]

Hi @yeskunall,

Did you resolve the issue? :)

[yeskunall]

@henningms, I just ended up initializing the BottomBar programatically instead. I can't comment on whether it works if you use it declaratively in XAML, but if I get a response from the guys, I can debug the issue.