IssueTracker

Android Studio 2.3 Beta 4
Build #AI-162.3715353, built on February 8, 2017
JRE: 1.8.0_112-release-b06 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o

I've tried with a couple of 9 patch drawables and the behaviour seemed to match the device. Could you please attach the sample layout and the nine patch you were trying in the screenshots?

Thanks

I've done some research.
The problem occurs in a layout as simple as:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    android:name="com.timesolutely.ui.EventEditorPopupFragment"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/wbg7_dis"
    android:gravity="top"
    android:orientation="vertical"
    tools:context="com.my.ui.EventTimeEditorPopupFragment"
    tools:layout_editor_absoluteX="40dp"
    tools:layout_editor_absoluteY="65dp">

    <!--fails: android:background="@drawable/wbg7_dis"-->
    <!--works fine, no 9 patch: android:background="#333"-->
    <!--works fine!  android:background="@android:drawable/editbox_background"-->


    <TextView
        android:id="@+id/title"
        style="@style/txt_24"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="16dp"
        android:layout_marginStart="16dp"
        android:background="#923"
        android:gravity="start"
        android:padding="10dp"
        android:text="@string/relative_time"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:layout_constraintLeft_creator="1"
        tools:layout_constraintTop_creator="1"
        tools:text="@string/relative_time"/>
</android.support.constraint.ConstraintLayout>



Interestingly, when using 9 patch coming from @android:..., it works fine.
The problem is reproducible when the 9 patch is inside "drawable-nodpi" res folder.
I'm attaching a sample 9 patch file, please put it in nodpi.

I just ran into this problem of a ConstraintLayout not rendering, but I am using a drawable shape (in res\drawable).  The shape is a simple rounded rectangle:

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
    <corners android:radius="20dp"/>
    <padding android:left="10dp" android:right="10dp" android:top="10dp" android:bottom="10dp"/>
    <solid android:color="@android:color/background_dark"/>
</shape>


After fiddling with it a little, I was able to get it to render if I removed the <padding /> element.

This is likely to be a problem in the 9patch parting lib. The problem with the drawable background is probably a different one (might happen on device as well?)

The Rendering bug with a 9 patch background in the no-dpi folder is repoducible

The 9 patch background bug is resolved.

I wasn't able to reproduce Brian's bug (#5). If the bug still happens can you please create a new bug with your layout and drawables attached?