Android Custom Widget Inflate Exception

Question

XML

  <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res/com.org.BatteryManager"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical"
      >
    <com.org.BatteryManager.BatteryView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:textColor="#ffffffff"
    />
    </LinearLayout>

Logcat

02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): 02-17 18:49:49.392: WARN/AppWidgetHostView(124): updateAppWidget couldn't find any view, using error view android.view.InflateException: Binary XML file line #9: Error inflating class com.org.BatteryManager.BatteryView at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:576) at android.view.LayoutInflater.rInflate(LayoutInflater.java:618) at android.view.LayoutInflater.inflate(LayoutInflater.java:407) at android.view.LayoutInflater.inflate(LayoutInflater.java:320) at android.widget.RemoteViews.apply(RemoteViews.java:930) at android.appwidget.AppWidgetHostView.updateAppWidget(AppWidgetHostView.java:219) at android.appwidget.AppWidgetHost.updateAppWidgetView(AppWidgetHost.java:250) at android.appwidget.AppWidgetHost$UpdateHandler.handleMessage(AppWidgetHost.java:73) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:123) at android.app.ActivityThread.main(ActivityThread.java:4627) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:521) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.ClassNotFoundException: com.org.BatteryManager.BatteryView in loader dalvik.system.PathClassLoader[.] at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243) at java.lang.ClassLoader.loadClass(ClassLoader.java:573) at java.lang.ClassLoader.loadClass(ClassLoader.java:532) at android.view.LayoutInflater.createView(LayoutInflater.java:466) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:565) ... 15 more

Try removing the @RemoteViews tag if you have one, that worked for me. Was racking my brains to figure this out. — DeliveryNinja, Mar 20 '11 at 15:36

score 6 · Answer 1 · edited May 23 '17 at 12:04

6

I had the same confusing problem. To fix it your custom view should provide a constructor with two arguments: Context and AttributeSet as adviced here.

edited May 23 '17 at 12:04

Community

1
1

answered Sep 04 '11 at 13:44

brighteyed

146
3
6

Totally nailed it! Thanks! :-D – Brad Oct 21 '11 at 15:19
1

Also caused by http://stackoverflow.com/questions/2098318/error-referencing-an-inner-class-view-in-layout-main-xml – nmr May 30 '14 at 18:43

score 0 · Answer 2 · answered May 16 '11 at 01:55

What is com.org.BatteryManager.BatteryView?

If you want to use a custom view then it is possible. The way to do it is create a custom view class in Java that extends some base view component class.

For example, I use custom Gallery components in lots of my applications. The gallery class will only move one frame left or right on a swipe which is different from the default behavior.

The way that I made my custom gallery is to extends the basic Gallery class --

package com.testing.whatever;

public class CustomGallery extends Gallery {
    //CODE OVERRIDES HERE
}

Then in my XML code, the code looked similar to what you already have --

<com.testing.whatever.CustomGallery android:layout_width="fill_parent" android:layout_height="fill_parent" />

I suspect you're getting your error because you haven't coded com.org.BatteryManager.BatteryView or it's in the wrong place in your java files.

This does not work for an app widget. App widgets cannot use custom classes. — CommonsWare, Nov 12 '12 at 17:35

Android Custom Widget Inflate Exception

2 Answers2

Linked