動作條中的Android 1.6

Question

我有這個源在我的應用程序：

@Override 
protected void onCreate(Bundle arg0) { 
    super.onCreate(arg0); 

    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) { 
     setTheme(getHoneycombStyle()); 
     ActionBar actionBar = getActionBar(); 
     if (actionBar != null) { 
      actionBar.setCustomView(R.layout.ACTION_BAR); 
     } 
    } 
} 

它工作在蜂窩的Android 2.1，2.2和2.3很好，但是，它並不作品的Android 1.6。雖然我已經檢查了SDK版本，應用程序將返回此異常：

08-31 18:23:33.063: ERROR/AndroidRuntime(3262): Uncaught handler: thread main exiting due to uncaught exception 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262): java.lang.VerifyError: com.eldan.introducing.activity.IBBaseCompActivity 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at java.lang.Class.newInstanceImpl(Native Method) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at java.lang.Class.newInstance(Class.java:1472) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.app.Instrumentation.newActivity(Instrumentation.java:1097) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2316) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.app.ActivityThread.startActivityNow(ActivityThread.java:2242) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.app.LocalActivityManager.moveToState(LocalActivityManager.java:127) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.app.LocalActivityManager.startActivity(LocalActivityManager.java:339) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.widget.TabHost$IntentContentStrategy.getContentView(TabHost.java:631) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.widget.TabHost.setCurrentTab(TabHost.java:317) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.widget.TabHost$2.onTabSelectionChanged(TabHost.java:127) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.widget.TabWidget$TabClickListener.onClick(TabWidget.java:346) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.view.View.performClick(View.java:2344) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.view.View.onTouchEvent(View.java:4133) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.view.View.dispatchTouchEvent(View.java:3672) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:850) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1712) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1202) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.app.Activity.dispatchTouchEvent(Activity.java:1987) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1696) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.view.ViewRoot.handleMessage(ViewRoot.java:1658) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.os.Handler.dispatchMessage(Handler.java:99) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.os.Looper.loop(Looper.java:123) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at android.app.ActivityThread.main(ActivityThread.java:4203) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at java.lang.reflect.Method.invokeNative(Native Method) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at java.lang.reflect.Method.invoke(Method.java:521) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 
08-31 18:23:33.083: ERROR/AndroidRuntime(3262):  at dalvik.system.NativeStart.main(Native Method) 

這聽起來像編譯器檢測到我onCreate方法ActionBar源，和Android 1.6不支持它。但我不太清楚如何解決這個問題。

Answer 1

您無法在加載到舊版Android的VM的代碼中引用新版Android的類或方法。

你有兩個主要選擇：

1. 隔離ActionBar代碼到一個單獨的工具類的，只有當你在蜂窩，由android.os.Build確定使用這個類。 Here is a sample project演示如何使用getActionView()將自定義佈局放入操作欄中，該佈局適用於Honeycomb和更早版本，方法是在Honeycomb上只使用HoneycombHelper類中的getActionView()調用。您可以使用ActionBarSherlock訪問操作欄。它將爲您提供Honeycomb上的本地操作欄以及舊版Android上的工作區。