Error implementing Support Library Action Bar

Question

I'm trying to implement the new v7 Support Library ActionBar. However, I can't get it to run properly.

Here's the exception

07-25 09:30:01.704: E/AndroidRuntime(9175): FATAL EXCEPTION: main
07-25 09:30:01.704: E/AndroidRuntime(9175): java.lang.NoClassDefFoundError: android.support.v7.appcompat.R$styleable
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:98)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.support.v7.app.ActionBarActivityDelegateICS.onCreate(ActionBarActivityDelegateICS.java:58)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java:98)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at com.cidaut.termoweb.MainActivity.onCreate(MainActivity.java:23)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.app.Activity.performCreate(Activity.java:5133)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.app.ActivityThread.access$600(ActivityThread.java:141)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.os.Handler.dispatchMessage(Handler.java:99)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.os.Looper.loop(Looper.java:137)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at android.app.ActivityThread.main(ActivityThread.java:5103)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at java.lang.reflect.Method.invokeNative(Native Method)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at java.lang.reflect.Method.invoke(Method.java:525)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
07-25 09:30:01.704: E/AndroidRuntime(9175):     at dalvik.system.NativeStart.main(Native Method)

The problem happens at the super.onCreate(bundle) call at onCreate().

Here's all my theming related XML:

styled.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>
    <style name="Theme.Termoweb" parent="@style/Theme.AppCompat.Light.DarkActionBar">
        <item name="actionBarItemBackground">@drawable/selectable_background_termoweb</item>
        <item name="popupMenuStyle">@style/PopupMenu.Termoweb</item>
        <item name="dropDownListViewStyle">@style/DropDownListView.Termoweb</item>
        <item name="actionBarTabStyle">@style/ActionBarTabStyle.Termoweb</item>
        <item name="actionDropDownStyle">@style/DropDownNav.Termoweb</item>
        <item name="actionBarStyle">@style/ActionBar.Solid.Termoweb</item>
        <item name="actionModeBackground">@drawable/cab_background_top_termoweb</item>
        <item name="actionModeSplitBackground">@drawable/cab_background_bottom_termoweb</item>
        <item name="actionModeCloseButtonStyle">@style/ActionButton.CloseMode.Termoweb</item>
        <!-- Light.DarkActionBar specific -->
        <item name="actionBarWidgetTheme">@style/Theme.Termoweb.Widget</item>
    </style>



    <style name="ActionBar.Solid.Termoweb" parent="@style/Widget.AppCompat.Light.ActionBar.Solid.Inverse">
        <item name="background">@drawable/ab_solid_termoweb</item>
        <item name="backgroundStacked">@drawable/ab_stacked_solid_termoweb</item>
        <item name="backgroundSplit">@drawable/ab_bottom_solid_termoweb</item>
        <item name="progressBarStyle">@style/ProgressBar.Termoweb</item>
    </style>


    <style name="ActionBar.Transparent.Termoweb" parent="@style/Widget.AppCompat.ActionBar">
        <item name="background">@drawable/ab_transparent_termoweb</item>
        <item name="progressBarStyle">@style/ProgressBar.Termoweb</item>
    </style>


    <style name="PopupMenu.Termoweb" parent="@style/Widget.AppCompat.ListView.Menu">
        <item name="popupBackground">@drawable/menu_dropdown_panel_termoweb</item>
    </style>


    <style name="DropDownListView.Termoweb" parent="@style/Widget.AppCompat.ListView.DropDown">
        <item name="listSelector">@drawable/selectable_background_termoweb</item>
    </style>


    <style name="ActionBarTabStyle.Termoweb" parent="@style/Widget.AppCompat.ActionBar.TabView">
        <item name="background">@drawable/tab_indicator_ab_termoweb</item>
    </style>


    <style name="DropDownNav.Termoweb" parent="@style/Widget.AppCompat.Spinner">
        <item name="background">@drawable/spinner_background_ab_termoweb</item>
        <item name="popupBackground">@drawable/menu_dropdown_panel_termoweb</item>
        <item name="dropDownSelector">@drawable/selectable_background_termoweb</item>
    </style>


    <style name="ProgressBar.Termoweb" parent="@style/Widget.AppCompat.ProgressBar.Horizontal">
        <item name="progressDrawable">@drawable/progress_horizontal_termoweb</item>
    </style>


    <style name="ActionButton.CloseMode.Termoweb" parent="@style/Widget.AppCompat.ActionButton.CloseMode">
        <item name="background">@drawable/btn_cab_done_termoweb</item>
    </style>


    <!-- this style is only referenced in a Light.DarkActionBar based theme -->
    <style name="Theme.Termoweb.Widget" parent="@style/Theme.AppCompat">
        <item name="popupMenuStyle">@style/PopupMenu.Termoweb</item>
        <item name="dropDownListViewStyle">@style/DropDownListView.Termoweb</item>
    </style>
</resources>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.cidaut.termoweb"
    android:versionCode="1"
    android:versionName="1.0" >
    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/Theme.Termoweb" >
        <activity
            android:name="com.cidaut.termoweb.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>

Solution 1

So, how I solved this problem:

1. Import support library as a project from "sdk/extras/android/support/v7/appcompat".
2. Reference library in your project (for Eclipse, "Properties - Android - Add").
3. Build projects (for Eclipse, "Projects - Build All"). Make sure, you have "android.support.v7.appcompat" in your main project gen folder.
4. If it doesn't worked - clean and rebuild project.

Solution 2

I have done the following and worked for me.

• Delete the jar from the libs folder.
• Import the sdk\extras\android\support\v7\appcompat\ project in your eclipse workspace.
• Ensure that the android-support-v4.jar is the same in your project.
• Add the appcompat as a library to your project.

Ensure that your in yout Manifest.xml your activity has the correct theme

    <activity
        android:name="***.*****.******"
        android:label="@string/app_name"
        android:theme="@style/Theme.AppCompat.Light"
         >

Good Luck ;)

Solution 3

In addition to BoredT's answer I added this line to res/values/styles.xml

<style name="AppTheme" parent="@style/Theme.AppCompat.Light">

Solution 4

Follow steps from Adding libraries with resources -> Eclipse http://developer.android.com/tools/support-library/setup.html :

1. follow all the steps (use copy project in workspace)
2. add android.library.reference.1=../android-support-v7-appcompat to your project.properties
3. use android:theme="@style/Theme.AppCompat" I used it in application tag you can apply to individual activities as well

Rebuild all!

Solution 5

This is how I solve the problem: rebuild the adroid-support-v7-appcompat library project in your eclipse workspace. Then build your own project again.

View more solutions

Comments

[BoredT]

Are you completely sure that you have "android.support.v7.appcompat.R.java" in your gen folder? Without it, it won't work

[Charlie-Blake]

I am completely and absolutely sure I have R.java in v7 gen folder.

[Charlie-Blake]

I had referenced @style/Widget.AppCompat.Spinner which for some reason does not exist. I just removed every reference to that style and everything worked like a charm.

[S-K']

+1 for mentioning that the activity must use the "Theme.AppCompat" theme or a theme that sub classes "Theme.AppCompat"

[Leon]

This resolved my issue. Adding the line to project.properties allowed Eclipse to generate R.java.

[McGafter]

Thanks. "Build ALL"... How can I miss it, yet I have.

[peacepassion]

Yeah, you must have android.support.v7.appcompat package in the gen folder.

[Si8]

I added the library and it shows in the referenced folder but can't find it in the Android tab.