Help me fix this error please

Caused by: android.content.res.Resources$NotFoundException: File res/drawable-tvdpi-v4/ms9_spot_shadow_z1.xml from drawable resource ID #0x7f0200e0 at android.content.res.Resources.loadDrawable(Resources.java:1953) at android.content.res.Resources.getDrawable(Resources.java:660) at com.h6ah4i.android.materialshadowninepatch.MaterialShadowContainerView.getNinePatchDrawableFromResource(MaterialShadowContainerView.java:311) at com.h6ah4i.android.materialshadowninepatch.MaterialShadowContainerView.updateShadowLevelCompat(MaterialShadowContainerView.java:346) at com.h6ah4i.android.materialshadowninepatch.MaterialShadowContainerView.updateShadowLevel(MaterialShadowContainerView.java:401) at com.h6ah4i.android.materialshadowninepatch.MaterialShadowContainerView.<init>(MaterialShadowCon

I have a vertical linear layout with a couple other vertical linear layouts hosted inside of it. I'm trying to use this code to create a little bit of space between each inner item as well as add a shadow to them, but no matter what I try I can't get shadows to appear when I create an object dynamically

My code is as follows

container.removeAllViews();

for (LinearLayout aLayout : itemsToAdd) {

    MaterialShadowContainerView msv = new MaterialShadowContainerView(getApplicationContext());
    msv.setShadowElevation(dp(6));
    msv.setShadowTranslationZ(dp(2));
    msv.setForceUseCompatShadow(true);

    ViewGroup.MarginLayoutParams p = new ViewGroup.MarginLayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    p.setMargins(dp(6), dp(6), dp(6), dp(45));

    msv.setLayoutParams(p);
    msv.addView(aLayout);
    container.addView(msv);

}

where container is a larger vertical linear layout that all of my smaller items are added to, and aLayout is each individual LinearLayout of an ArrayList collection. Right now I'm assuming there is something I've done wrong with the margins as no matter what I do I can't get them to show up at all. All I ever seem to get is one continuous block of white without a single shadow as shown below

Is there something wrong with the way I'm doing this, or is there an actual bug with this library?

I thank you for the awesome library that save me a lot of time, I used the lib in a recyclerview but the right shadow aren't working while the top, left, bottom working great. I hope you give me a tip to fix this problem as you see this comment.

Hello

I tried to add library repo

In gradle build I added:

repositories {
    mavenCentral()
    maven {
        url "https://jitpack.io"
    }
}

android {
    . . . 
    dependencies {
        . . . . 
        compile 'com.h6ah4i.android.materialshadowninepatch:materialshadowninepatch:0.6.2'
    }
}

After gradle update got following error:

Error:A problem occurred configuring project ':Android'.
> Artifact 'materialshadowninepatch.jar (com.h6ah4i.android.materialshadowninepatch:materialshadowninepatch:0.6.2)' not found.
  Searched in the following locations:
      https://jitpack.io/com/h6ah4i/android/materialshadowninepatch/materialshadowninepatch/0.6.2/materialshadowninepatch-0.6.2.jar

Also tried versions 0.6.1, 0.6.0 but I've experienced same issue

Is this by design?

I have something like this:

<MaterialShadowContainerView>
   <LinearLayout>
    <View android:background="#ff0000">
    <View android:background="#00ff00">
  </LinearLayout>
</MaterialShadowContainerView>

The shadow does not seem to draw if the LinearLayout does not have a background. If I set one, it works, but also means there's unnecessary overdraw.

Thanks for the very useful library, by the way!

I add below line to dependencies and sync. It show's error.

compile 'com.h6ah4i.android.materialshadowninepatch:materialshadowninepatch:1.0.0'

error : Information:Gradle tasks [:app:generateDebugSources, :app:generateDebugAndroidTestSources, :app:mockableAndroidJar] /Users/mehdi08/.gradle/caches/transforms-1/files-1.1/appcompat-v7-27.0.2.aar/a5e461f3cfccca112f65fb535223bc71/res/values/values.xml Error:(252, 5) error: resource android:attr/fontVariationSettings not found. Error:(252, 5) error: resource android:attr/ttcIndex not found. /Users/mehdi08/08_Corp./Tapesh/Tapesh-Android/app/build/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml Error:(524) resource android:attr/fontVariationSettings not found. Error:(524) resource android:attr/ttcIndex not found. Error:failed linking references. Error:java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details Error:java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details Error:com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details Error:Execution failed for task ':app:processDebugResources'.

Failed to execute aapt Information:BUILD FAILED in 4s Information:9 errors Information:0 warnings Information:See complete output in console

From what I'm reading I think the answer is no, but I want to be sure. I have a SlidingPaneLayout where the left pane has multiple colors in it, but the shadow uses the background color of the parent view and it looks terrible.

I've been playing around with the values in my app, and also looked at your source code, but I can't quite figure out what the difference is. I'm assuming shadowElevation is how "high" the shadow should be, e.g., what the elevation is of the material it's cast upon? While shadowTranslationZ is how "high" the item in the container is? I'm not sure – shadowElevation is not used in your sample! Likewise for how much margin is required - you put 16dp for everything in the examples, but how can we calculate the minimum margin required for each shadow size?

Thank you so much for this library, I hope a short guide in the README would as helpful to others!