android - 扩展ActionBarActivity时应用程序崩溃

当我扩展ActionBarActivity时有一个错误捕获。如果我扩展Activity则没有错误。
在我的其他活动中，它工作得很好。一开始，我以为这是因为我之前的活动把额外的意图。但即使没有它，应用程序也会崩溃。
这是我的代码：

import android.support.v7.app.ActionBarActivity;

import android.os.Bundle;

public class FullscreenActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_fullscreen);
    }
}

编辑：日志结果：

09-21 18:21:39.413: E/AndroidRuntime(26944): FATAL EXCEPTION: main
09-21 18:21:39.413: E/AndroidRuntime(26944): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.testlfm/com.example.testlfm.FullscreenActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2308)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2358)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.app.ActivityThread.access$600(ActivityThread.java:153)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1247)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.os.Handler.dispatchMessage(Handler.java:99)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.os.Looper.loop(Looper.java:137)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.app.ActivityThread.main(ActivityThread.java:5227)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at java.lang.reflect.Method.invokeNative(Native Method)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at java.lang.reflect.Method.invoke(Method.java:511)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at dalvik.system.NativeStart.main(Native Method)
09-21 18:21:39.413: E/AndroidRuntime(26944): Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:102)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.support.v7.app.ActionBarActivityDelegateICS.onCreate(ActionBarActivityDelegateICS.java:58)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java:98)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at com.example.testlfm.FullscreenActivity.onCreate(FullscreenActivity.java:36)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.app.Activity.performCreate(Activity.java:5104)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
09-21 18:21:39.413: E/AndroidRuntime(26944):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2262)
09-21 18:21:39.413: E/AndroidRuntime(26944):    ... 11 more

最佳答案

根据您发布的错误：“您需要将theme.appcompat主题（或子体）用于此活动。”您应该将appcompat库用作库项目，在这种情况下，您将在该项目的res/values下看到可用的主题。