我开发了一个带有片段和动作栏的应用程序，但只有在我完成后，我才发现它不适用于Android版本＆lt; 3.0！现在，我已经阅读了support.v7和ActionBarCompat，但我在logcat中遇到了这些错误：
01-07 10:52:15.160: E/StrictMode(873): A resource was acquired at attached stack trace but never released. See java.io.Closeable for information on avoiding resource leaks.
01-07 10:52:15.160: E/StrictMode(873): java.lang.Throwable: Explicit termination method 'release' not called
01-07 10:52:15.160: E/StrictMode(873): at dalvik.system.CloseGuard.open(CloseGuard.java:184)
01-07 10:52:15.160: E/StrictMode(873): at android.drm.DrmManagerClient.<init>(DrmManagerClient.java:258)
01-07 10:52:15.160: E/StrictMode(873): at com.google.android.mms.pdu.PduPersister.<init>(PduPersister.java:288)
01-07 10:52:15.160: E/StrictMode(873): at com.google.android.mms.pdu.PduPersister.getPduPersister(PduPersister.java:296)
01-07 10:52:15.160: E/StrictMode(873): at com.android.mms.transaction.TransactionService.onNewIntent(TransactionService.java:224)
01-07 10:52:15.160: E/StrictMode(873): at com.android.mms.transaction.TransactionService$ServiceHandler.handleMessage(TransactionService.java:621)
01-07 10:52:15.160: E/StrictMode(873): at android.os.Handler.dispatchMessage(Handler.java:102)
01-07 10:52:15.160: E/StrictMode(873): at android.os.Looper.loop(Looper.java:136)
01-07 10:52:15.160: E/StrictMode(873): at android.os.HandlerThread.run(HandlerThread.java:61)
我该如何解决？
更新： 这是我的一段代码：
public class MainActivity extends ActionBarActivity implements ActionBar.TabListener {
AppSectionsPagerAdapter mAppSectionsPagerAdapter;
ViewPager mViewPager;
int mCurCheckPosition;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
mAppSectionsPagerAdapter = new AppSectionsPagerAdapter(getSupportFragmentManager());
Log.d("1","ok");
final ActionBar actionBar = getSupportActionBar();
Log.d（ “1”， “OK”）;不在我的logacat