Android ResourceNotFoundException in preview custom View

Question

I've got a custom view, let's call it CustomView. In the initialization, I call the following method

textPaint.setTypeface(ResourcesCompat.getFont(getContext(),R.font.pretty_font));

In the app, this view works perfectly and the font is displayed as it should but the problem is that the preview of the view wont load in the editor with the following details:

android.content.res.Resources$NotFoundException: Font resource ID

0x7f090000 could not be retrieved.

at androidx.core.content.res.ResourcesCompat.loadFont(ResourcesCompat.java:365) at androidx.core.content.res.ResourcesCompat.getFont(ResourcesCompat.java:230) at com.mycompany.myapp.view.views.CustomView.init(CustomView.java:490) at com.mycompany.myapp.view.views.CustomView.initAttrs(CustomView.java:484) at com.mycompany.myapp.view.views.CustomView.(CustomView.java:116) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.jetbrains.android.uipreview.ViewLoader.createNewInstance(ViewLoader.java:403) at org.jetbrains.android.uipreview.ViewLoader.loadClass(ViewLoader.java:186) at org.jetbrains.android.uipreview.ViewLoader.loadView(ViewLoader.java:144) at com.android.tools.idea.rendering.LayoutlibCallbackImpl.loadView(LayoutlibCallbackImpl.java:309) at android.view.BridgeInflater.loadCustomView(BridgeInflater.java:418) at android.view.BridgeInflater.loadCustomView(BridgeInflater.java:429) at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:333) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730) at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:863) at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72) at android.view.LayoutInflater.rInflate(LayoutInflater.java:837) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824) at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:866) at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72) at android.view.LayoutInflater.rInflate(LayoutInflater.java:837) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824) at android.view.LayoutInflater.inflate(LayoutInflater.java:515) at android.view.LayoutInflater.inflate(LayoutInflater.java:394) at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:323) at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:394) at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:200) at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:572) at com.android.tools.idea.rendering.RenderTask.lambda$inflate$5(RenderTask.java:698) at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)

Why won't this resource be loaded in the editor but it has no problem running in the app? FYI, MinSdk = 21 and TargetSdk = 28

Answer 1

Don't call setTypeface in design mode. Use:

if (!isInEditMode()) {
textPaint.setTypeface(ResourcesCompat.getFont(getContext(),R.font.pretty_font))
}