標籤使用操作欄

Question

我很新的動作吧，我想通過使用SDK分鐘14和目標SDK進行簡單的應用程序使用操作欄標籤和片段16

這是片段類

public class Tab1fragment extends Fragment{ 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
     Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 

    return inflater.inflate(R.layout.fragmenttab, container,false); 

    } 
} 

這是tablistener類

public class tabslistener implements ActionBar.TabListener{ 

    Fragment _fragment; 
    boolean check=true; 

    public tabslistener(Fragment _fragment) 
    { 
     this._fragment=_fragment; 
    } 

    @Override 
    public void onTabSelected(Tab tab, FragmentTransaction ft) { 
     // TODO Auto-generated method stub 

     if(check) 
     { 
      ft.add(R.id.Fragment1, _fragment,null); 
      check=false; 
     } 
     else 
     { 
      ft.attach(_fragment); 
     } 

    } 

    @Override 
    public void onTabUnselected(Tab tab, FragmentTransaction ft) { 
     // TODO Auto-generated method stub 
     ft.detach(_fragment); 
    } 

    @Override 
    public void onTabReselected(Tab tab, FragmentTransaction ft) { 
     // TODO Auto-generated method stub 

    } 

} 

這是我的主類

public class NextActivity extends Activity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 
     ActionBar actionbar=getActionBar(); 
     actionbar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); 
     Fragment fragment=Fragment.instantiate(this, Tab1fragment.class.getName()); 
     tabslistener tablistener=new tabslistener(fragment); 
     ActionBar.Tab tab1=actionbar.newTab().setTabListener(tablistener); 
     actionbar.addTab(tab1); 

    } 

這也是我在logcat的

01-19 01:40:40.078: E/AndroidRuntime(725): FATAL EXCEPTION: main 
01-19 01:40:40.078: E/AndroidRuntime(725): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.tabs/com.example.tabs.NextActivity}: java.lang.IllegalArgumentException: No view found for id 0x7f070001 for fragment Tab1fragment{416511c8 #0 id=0x7f070001} 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.ActivityThread.access$600(ActivityThread.java:123) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.os.Handler.dispatchMessage(Handler.java:99) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.os.Looper.loop(Looper.java:137) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.ActivityThread.main(ActivityThread.java:4424) 
01-19 01:40:40.078: E/AndroidRuntime(725): at java.lang.reflect.Method.invokeNative(Native Method) 
01-19 01:40:40.078: E/AndroidRuntime(725): at java.lang.reflect.Method.invoke(Method.java:511) 
01-19 01:40:40.078: E/AndroidRuntime(725): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
01-19 01:40:40.078: E/AndroidRuntime(725): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
01-19 01:40:40.078: E/AndroidRuntime(725): at dalvik.system.NativeStart.main(Native Method) 
01-19 01:40:40.078: E/AndroidRuntime(725): Caused by: java.lang.IllegalArgumentException: No view found for id 0x7f070001 for fragment Tab1fragment{416511c8 #0 id=0x7f070001} 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:822) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1032) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.BackStackRecord.run(BackStackRecord.java:622) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1382) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.Activity.performStart(Activity.java:4474) 
01-19 01:40:40.078: E/AndroidRuntime(725): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1929) 

Answer 1

得到了錯誤這是我在logcat的

的誤差得到了錯誤的出現是因爲你嘗試做一個交易將一個片段（Tab1fragment）添加到無法找到的視圖（編號爲R.id.Fragment1的視圖）。我不知道你發佈的是完整的代碼，但看起來編號爲R.id.Fragment1的視圖位於Tab1fragment的佈局文件R.layout.fragmenttab中。如果是這種情況，不要這樣做，而應該爲已經在Activity中的佈局提供一個ID。例如，你可以使NextActivity的內容是一個簡單的FrameLayout和使用，作爲標籤的內容容器：

@Override 
    protected void onCreate(Bundle savedInstanceState) { 
     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 
     FrameLayout fl = new FrameLayout(this); 
    fl.setId(1000); 
    setContentView(fl); 
    //... 

，並使用1000 ID爲片段添加交易：

@Override 
    public void onTabSelected(Tab tab, FragmentTransaction ft) { 
     // TODO Auto-generated method stub 

     if (check) { 
      ft.add(1000, _fragment, null); 
      check = false; 
     } else { 
      ft.attach(_fragment); 
     } 

    }