版本2.2（級別8）上的Android支持庫ActionBar NullPointerException-與preferences.xml沖突

Question

我正在使用v7支持庫在Android 2.x上顯示ActionBar。

當我將應用程序部署到我的IDE（Intellij IDEA）中的設備時，該應用程序運行良好。

當我使用maven構建和打包要部署到Play商店的應用程序時，發現在設備上安裝並運行打包的應用程序時出現以下異常，導致應用程序崩潰。 （它在v8模擬器上也失敗）。 在android v4.3的兩種情況下都可以正常工作。

知道為什么用Maven編譯時會崩潰嗎？

01-07 15:05:22.671      937-937/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.triopsis.as.mobile.android/com.triopsis.as.mobile.android.activity.MainMenuActivity}: android.view.InflateException: Binary XML file line #25: Error inflating class android.support.v7.internal.widget.ActionBarView
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
        at android.app.ActivityThread.access$2300(ActivityThread.java:125)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
        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: android.view.InflateException: Binary XML file line #25: Error inflating class android.support.v7.internal.widget.ActionBarView
        at android.view.LayoutInflater.createView(LayoutInflater.java:513)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:565)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:621)
        at android.view.LayoutInflater.parseInclude(LayoutInflater.java:677)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:614)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
        at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
        at android.app.Activity.setContentView(Activity.java:1647)
        at android.support.v7.app.ActionBarActivity.superSetContentView(ActionBarActivity.java:216)
        at android.support.v7.app.ActionBarActivityDelegateBase.ensureSubDecor(ActionBarActivityDelegateBase.java:180)
        at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:134)
        at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:76)
        at com.triopsis.as.mobile.android.activity.MainMenuActivity.onCreate(MainMenuActivity.java:43)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
        at android.app.ActivityThread.access$2300(ActivityThread.java:125)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
        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.reflect.InvocationTargetException
        at android.support.v7.internal.widget.ActionBarView.<init>(ActionBarView.java:218)
        at java.lang.reflect.Constructor.constructNative(Native Method)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
        at android.view.LayoutInflater.createView(LayoutInflater.java:500)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:565)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:621)
        at android.view.LayoutInflater.parseInclude(LayoutInflater.java:677)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:614)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
        at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
        at android.app.Activity.setContentView(Activity.java:1647)
        at android.support.v7.app.ActionBarActivity.superSetContentView(ActionBarActivity.java:216)
        at android.support.v7.app.ActionBarActivityDelegateBase.ensureSubDecor(ActionBarActivityDelegateBase.java:180)
        at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:134)
        at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:76)
        at com.triopsis.as.mobile.android.activity.MainMenuActivity.onCreate(MainMenuActivity.java:43)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
        at android.app.ActivityThread.access$2300(ActivityThread.java:125)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
        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$MethodAndArgsCaller.run(ZygoteInit.java:868)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
        at dalvik.system.NativeStart.main(Native Method)
 Caused by: java.lang.NullPointerException
        at android.support.v7.internal.widget.ActionBarView$HomeView.onFinishInflate(ActionBarView.java:1301)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
        at android.support.v7.internal.widget.ActionBarView.<init>(ActionBarView.java:218)
        at java.lang.reflect.Constructor.constructNative(Native Method)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
        at android.view.LayoutInflater.createView(LayoutInflater.java:500)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:565)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:621)
        at android.view.LayoutInflater.parseInclude(LayoutInflater.java:677)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:614)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
        at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
        at android.app.Activity.setContentView(Activity.java:1647)
        at android.support.v7.app.ActionBarActivity.superSetContentView(ActionBarActivity.java:216)
        at android.support.v7.app.ActionBarActivityDelegateBase.ensureSubDecor(ActionBarActivityDelegateBase.java:180)
        at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:134)
        at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:76)
        at com.triopsis.as.mobile.android.activity.MainMenuActivity.onCreate(MainMenuActivity.java:43)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
        at android.app.ActivityThread.access$2300(ActivityThread.java:125)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
        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)

我在Maven中具有以下依賴關系：

<dependencies>
    <dependency>
        <groupId>android</groupId>
        <artifactId>android</artifactId>
        <version>4.0_r3</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>android.support</groupId>
        <artifactId>compatibility-v7-appcompat</artifactId>
        <version>19.0.1</version>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>android.support</groupId>
        <artifactId>compatibility-v7-appcompat</artifactId>
        <version>19.0.1</version>
        <type>apklib</type>
    </dependency>
    <dependency>
        <groupId>android.support</groupId>
        <artifactId>compatibility-v13</artifactId>
        <version>19.0.1</version>
        <type>jar</type>
    </dependency>
</dependencies>

並配置了以下maven-android-plugin：

<build>
    <plugins>
        <plugin>
            <groupId>com.jayway.maven.plugins.android.generation2</groupId>
            <artifactId>android-maven-plugin</artifactId>
            <version>3.8.2</version>
            <configuration>
                <sdk>
                    <platform>14</platform>
                </sdk>
            </configuration>
            <extensions>true</extensions>
        </plugin>
    </plugins>
</build>

UPDATE

花費了一段時間，但是我發現當我使用帶有PreferenceScreen設置的res / xml / preferences.xml文件時，會導致此崩潰。 如果刪除此文件，則不會崩潰。 有人知道為什么會導致此問題嗎？

Answer 1

您絕對需要android-maven-plugin版本3.8.2嗎？ 好像是馬車。

將android-maven-plugin從3.8.0到3.8.2后，我們的項目中出現了類似的問題。

退回到版本3.8.0解決了該問題。

症狀：
我們的結論是，問題出在apklib的鏈接中，所有引用的資源（布局，可繪制對象...）似乎都沒有對齊。 例如，顯示的是布局或可繪制對象，而不是其他。 訪問布局中缺少的引用/ ID時，應用程序崩潰（該引用不存在，因為加載了錯誤的布局）。

請參閱問題http://code.google.com/p/maven-android-plugin/issues/detail?id=441