java.lang.indexOutOfBoundsException在ActionBar.tabsListener

Question

我使用tabsListener我動作條選項卡設置選項卡。在我的電話中，一切都「很好」，但是在我的平板電腦中，它引發了一個異常。

09-15 15:46:27.588: W/System.err(31772): java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1 
09-15 15:46:27.799: W/System.err(31772): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251) 
09-15 15:46:27.799: W/System.err(31772): at java.util.ArrayList.get(ArrayList.java:304) 
09-15 15:46:27.799: W/System.err(31772): at com.android.internal.app.ActionBarImpl.getTabAt(ActionBarImpl.java:1168) 
09-15 15:46:27.799: W/System.err(31772): at com.actionbarsherlock.internal.app.ActionBarWrapper.getTabAt(ActionBarWrapper.java:423) 
09-15 15:46:27.799: W/System.err(31772): at de.arvidg.onlineradio.StartActivity.onPageSelected(StartActivity.java:1270) 
09-15 15:46:27.799: W/System.err(31772): at android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:445) 
09-15 15:46:27.799: W/System.err(31772): at android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:405) 
09-15 15:46:27.799: W/System.err(31772): at android.support.v4.view.ViewPager.setCurrentItem(ViewPager.java:386) 
09-15 15:46:27.799: W/System.err(31772): at de.arvidg.onlineradio.TabsListener.onTabSelected(TabsListener.java:27) 
09-15 15:46:27.799: W/System.err(31772): at com.actionbarsherlock.internal.app.ActionBarWrapper$TabWrapper.onTabSelected(ActionBarWrapper.java:344) 
09-15 15:46:27.799: W/System.err(31772): at com.android.internal.app.ActionBarImpl.selectTab(ActionBarImpl.java:570) 
09-15 15:46:27.799: W/System.err(31772): at com.android.internal.app.ActionBarImpl.addTab(ActionBarImpl.java:499) 
09-15 15:46:27.799: W/System.err(31772): at com.android.internal.app.ActionBarImpl.addTab(ActionBarImpl.java:485) 
09-15 15:46:27.799: W/System.err(31772): at com.actionbarsherlock.internal.app.ActionBarWrapper.addTab(ActionBarWrapper.java:377) 
09-15 15:46:27.799: W/System.err(31772): at de.arvidg.onlineradio.StartActivity.tabletUI(StartActivity.java:403) 
09-15 15:46:27.799: W/System.err(31772): at de.arvidg.onlineradio.StartActivity.onCreate(StartActivity.java:310) 
09-15 15:46:27.799: W/System.err(31772): at android.app.Activity.performCreate(Activity.java:5008) 
09-15 15:46:27.799: W/System.err(31772): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 
09-15 15:46:27.799: W/System.err(31772): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2136) 
09-15 15:46:27.799: W/System.err(31772): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2207) 
09-15 15:46:27.799: W/System.err(31772): at android.app.ActivityThread.access$600(ActivityThread.java:139) 
09-15 15:46:27.799: W/System.err(31772): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1205) 
09-15 15:46:27.799: W/System.err(31772): at android.os.Handler.dispatchMessage(Handler.java:99) 
09-15 15:46:27.799: W/System.err(31772): at android.os.Looper.loop(Looper.java:137) 
09-15 15:46:27.799: W/System.err(31772): at android.app.ActivityThread.main(ActivityThread.java:4899) 
09-15 15:46:27.799: W/System.err(31772): at java.lang.reflect.Method.invokeNative(Native Method) 
09-15 15:46:27.799: W/System.err(31772): at java.lang.reflect.Method.invoke(Method.java:511) 
09-15 15:46:27.799: W/System.err(31772): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 
09-15 15:46:27.799: W/System.err(31772): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:558) 
09-15 15:46:27.799: W/System.err(31772): at dalvik.system.NativeStart.main(Native Method) 

其拋出異常的方法：

@Override 
public void onTabSelected(Tab tab, FragmentTransaction ft) { 
    Log.d("TAG", "onTabSelected tag = " + mTag); 
    try { mPager.setCurrentItem(Integer.parseInt(mTag)); } 
    catch(Exception e) { Log.e("TAG", "mPager.setCurrentItem Exception " + e); e.printStackTrace(); Log.d("TabListener", "Error onTabSelected = " + e); } 
} 

什麼想法？需要更多的代碼，只是問。

Answer 1

您的碎片大小爲1，但您傳遞索引1.這意味着有兩個Fragments，一個在索引0處，另一個在索引1處。集合從0開始計數，所以您應該這樣做：

@Override 
public void onTabSelected(Tab tab, FragmentTransaction ft) { 
    Log.d("TAG", "onTabSelected tag = " + mTag); 
    try { mPager.setCurrentItem(Integer.parseInt(mTag) - 1); } ///CHANGED IT TO -1 
    catch(Exception e) { Log.e("TAG", "mPager.setCurrentItem Exception " + e); 
     e.printStackTrace(); Log.d("TabListener", "Error onTabSelected = " + e); } 
}