Android如何更改選項卡上的標籤圖標點擊

Question

Android：

我是新來的android我想更改選項卡上的標籤圖標點擊。我按照可能的指南，指導如何通過selecter XML文件更改標籤的圖標，如

http://developer.android.com/resources/tutorials/views/hello-tabwidget.html http://www.androidhive.info/2011/08/android-tab-layout-tutorial/

，但在我的事業，爲什麼所有這些不工作，它改變選定未選定之和未選定到只選擇第一個選項卡圖標但對於所有其他地方是在我的代碼問題不能正常工作，請幫助我PLZ PLZ PLZ

我的代碼如下

我繪製圖標設置文件與名稱遵循

繪製文件夾

<selector xmlns:android="http://schemas.android.com/apk/res/android"> 

    <!-- When selected, --> 
    <item android:drawable="@drawable/menu_promenera_selected" 
      android:state_selected="true" 
      android:state_pressed="false" /> 

    <!-- When not selected, --> 
    <item android:drawable="@drawable/menu_promenera" 
     /> 

    <!-- When selected, --> 
    <item android:drawable="@drawable/menu_varaframsteg_selected" 
      android:state_selected="true" 
      android:state_pressed="false" /> 
    <!-- When not selected, --> 
    <item android:drawable="@drawable/menu_varaframsteg" 
     /> 

    <!-- When selected, --> 
    <item android:drawable="@drawable/menu_minapromenader_selected" 
      android:state_selected="true" 
      android:state_pressed="false" /> 
    <!-- When not selected,--> 
    <item android:drawable="@drawable/menu_minapromenader" 
     /> 

    <!-- When selected, --> 
    <item android:drawable="@drawable/menu_information_selected" 
      android:state_selected="true" 
      android:state_pressed="false" /> 
    <!-- When not selected, --> 
    <item android:drawable="@drawable/menu_information" 
     /> 

</selector> 

下個

becel_setting.xml和我接頭主機的主機類是遵循

public class BECEL extends TabActivity{ 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 
     try{ 
      setMenuTabs(); 
     }catch(Exception ex){ 
      String message = ex.getMessage(); 
     } 
    } 

    private void setMenuTabs() { 
     Resources res = getResources(); // Resource object to get Drawables 
     TabHost tabHost = getTabHost(); // The activity TabHost 

     TabHost.TabSpec spec; // Resusable TabSpec for each tab 
     Intent intent; // Reusable Intent for each tab 

     /*******************************************/ 

     intent = new Intent(this, BecelFacebookConnection.class); 

     spec = tabHost.newTabSpec("").setIndicator("", 
     res.getDrawable(R.drawable.becel_setting)).setContent(intent); /**** xml file name becel_setting ******/ 
     tabHost.addTab(spec);   



     intent = new Intent(this, OurProgress.class); 
     Drawable mySelector = getResources().getDrawable(R.drawable.menu_varaframsteg); 
     spec = tabHost.newTabSpec("").setIndicator("",mySelector).setContent(intent); 
     tabHost.addTab(spec); 



     intent = new Intent(this, MyWalks.class); 

     spec = tabHost.newTabSpec("").setIndicator("", 
     res.getDrawable(R.drawable.menu_minapromenader)).setContent(intent); 
     tabHost.addTab(spec); 



     intent = new Intent(this, WalkInformations.class); 

     spec = tabHost.newTabSpec("").setIndicator("", 
     res.getDrawable(R.drawable.menu_information)).setContent(intent); 
     tabHost.addTab(spec); 

     tabHost.setCurrentTab(0); 

    } 
} 

請幫我在哪裏，我的代碼是問題

Answer 1

您需要提供每個字段的唯一字符串值爲newTabSpec（「」）。例如TAB1，TAB2，TAB3和TAB4下面的例子：

public class BECEL extends TabActivity{ 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 
     try{ 
      setMenuTabs(); 
     }catch(Exception ex){ 
      String message = ex.getMessage(); 
     } 
    } 

    private void setMenuTabs() { 
     Resources res = getResources(); // Resource object to get Drawables 
     TabHost tabHost = getTabHost(); // The activity TabHost 

     TabHost.TabSpec spec; // Resusable TabSpec for each tab 
     Intent intent; // Reusable Intent for each tab 

     /*******************************************/ 

     intent = new Intent(this, BecelFacebookConnection.class); 

     spec = tabHost.newTabSpec("tab1").setIndicator("tab1", 
     res.getDrawable(R.drawable.becel_setting)).setContent(intent); /**** xml file name becel_setting ******/ 
     tabHost.addTab(spec);   



     intent = new Intent(this, OurProgress.class); 
     Drawable mySelector = getResources().getDrawable(R.drawable.menu_varaframsteg); 
     spec = tabHost.newTabSpec("tab2").setIndicator("tab2",mySelector).setContent(intent); 
     tabHost.addTab(spec); 



     intent = new Intent(this, MyWalks.class); 

     spec = tabHost.newTabSpec("tab3").setIndicator("tab3", 
     res.getDrawable(R.drawable.menu_minapromenader)).setContent(intent); 
     tabHost.addTab(spec); 



     intent = new Intent(this, WalkInformations.class); 

     spec = tabHost.newTabSpec("tab4").setIndicator("tab4", 
     res.getDrawable(R.drawable.menu_information)).setContent(intent); 
     tabHost.addTab(spec); 

     tabHost.setCurrentTab(0); 

    } 
}