[TNS 3.0] Android: Formatted string does not work if defined in XML

[PeterStaev]

I have the following defined in XML that was working with 2.5:

<Button class="btn">   
    <Button.formattedText>
        <FormattedString>
            <FormattedString.spans>
                <Span text=" Login"></Span>
            </FormattedString.spans>
        </FormattedString>
    </Button.formattedText>
</Button>  

This throws the following error:

An uncaught Exception occurred on "main" thread.
java.lang.NullPointerException: Attempt to invoke virtual method 'int android.graphics.Typeface.getStyle()' on a null object reference
at org.nativescript.widgets.CustomTypefaceSpan.applyCustomTypeFace(CustomTypefaceSpan.java:35)
at org.nativescript.widgets.CustomTypefaceSpan.updateDrawState(CustomTypefaceSpan.java:23)
at android.text.TextLine.handleRun(TextLine.java:932)
at android.text.TextLine.measureRun(TextLine.java:417)
at android.text.TextLine.measure(TextLine.java:296)
at android.text.TextLine.metrics(TextLine.java:270)
at android.text.BoringLayout.isBoring(BoringLayout.java:311)
at android.widget.TextView.makeSingleLayout(TextView.java:6715)
at android.widget.TextView.makeNewLayout(TextView.java:6610)
at android.widget.TextView.onMeasure(TextView.java:6961)
at android.view.View.measure(View.java:18788)
at org.nativescript.widgets.CommonLayoutParams.measureChild(CommonLayoutParams.java:262)
at org.nativescript.widgets.StackLayout.onMeasure(StackLayout.java:83)
at android.view.View.measure(View.java:18788)
at org.nativescript.widgets.CommonLayoutParams.measureChild(CommonLayoutParams.java:262)
at org.nativescript.widgets.StackLayout.onMeasure(StackLayout.java:83)
at android.view.View.measure(View.java:18788)
at org.nativescript.widgets.CommonLayoutParams.measureChild(CommonLayoutParams.java:262)
at org.nativescript.widgets.MeasureHelper.measureChildFixedColumnsAndRows(GridLayout.java:1059)
at org.nativescript.widgets.MeasureHelper.measure(GridLayout.java:869)
at org.nativescript.widgets.GridLayout.onMeasure(GridLayout.java:279)
at android.view.View.measure(View.java:18788)
at org.nativescript.widgets.CommonLayoutParams.measureChild(CommonLayoutParams.java:262)
at org.nativescript.widgets.ContentLayout.onMeasure(ContentLayout.java:32)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2643)
at android.view.View.measure(View.java:18788)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2100)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1216)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1452)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6013)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:606)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Also tried the short format - directly having FormattedString inside the button and then directly Span inside it. Also the same problem happens with Label. Before testing I have uninstalled the app from device and nuked node_modules and platforms.

EDIT
Seems related to the btn class from the nativescript theme. If that is removed the exception does not happen.

[tsonevn]

Hi @PeterStaev,
Thank you for reporting this issue.
I tested the above-given code snippet in a newly created project, however, everything seems to work as expected, while setting FormattedString via XML.
For your convenience, I am attaching sample project, where you could make the needed changes, which will allow us to reproduce the problem.
Archive.zip

It would also help if you could provide some info, is this issue appears on a newly created project or on the old one.

[PeterStaev]

@tsonevn , after further testing, seems related to the btn class. As soon as you add this to your sample you should receive the above error. I have adjusted the original post.

[vakrilov]

I managed to reproduce the exception once I've added class="btn".

[SvetoslavTsenov]

The fix is available in 'next' version of tns-core-modules.

[dtopuzov]

Fix will be released in 3.0.1 later this week.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.