2012-01-14 47 views
1

嗨,大家我創建tabview通過擴展片段活動,它顯示正常,但在我的第一個標籤我有一個列表視圖,當我點擊該視圖我需要移動到另一個視圖但在同一個標​​籤中它是如何完成的,我知道如何通過tabactivity創建tabview,但是我不知道如何使用tabview中的片段活動,因此,如果任何教程鏈接關於tabview與片段活動將非常有幫助。這是代碼如何移動到另一個佈局在同一標籤使用片段

public class FragmeActivity extends FragmentActivity implements TabHost.OnTabChangeListener { 

private TabHost mTabHost; 
private HashMap mapTabInfo = new HashMap(); 
private TabInfo mLastTab = null; 

private class TabInfo { 
    private String tag; 
    private Class clss; 
    private Bundle args; 
    private Fragment fragment; 
    TabInfo(String tag, Class clazz, Bundle args) { 
     this.tag = tag; 
     this.clss = clazz; 
     this.args = args; 
    } 

} 

class TabFactory implements TabContentFactory { 

    private final Context mContext; 

    /** 
    * @param context 
    */ 
    public TabFactory(Context context) { 
     mContext = context; 
    } 

    /** (non-Javadoc) 
    * @see android.widget.TabHost.TabContentFactory#createTabContent(java.lang.String) 
    */ 
    public View createTabContent(String tag) { 
     View v = new View(mContext); 
     v.setMinimumWidth(0); 
     v.setMinimumHeight(0); 
     return v; 
    } 

} 
/** (non-Javadoc) 
* @see android.support.v4.app.FragmentActivity#onCreate(android.os.Bundle) 
*/ 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    // Step 1: Inflate layout 
    setContentView(R.layout.main); 
    // Step 2: Setup TabHost 
    initialiseTabHost(savedInstanceState); 
    if (savedInstanceState != null) { 
     mTabHost.setCurrentTabByTag(savedInstanceState.getString("tab")); //set the tab as per the saved state 
    } 
} 

/** (non-Javadoc) 
* @see android.support.v4.app.FragmentActivity#onSaveInstanceState(android.os.Bundle) 
*/ 
protected void onSaveInstanceState(Bundle outState) { 
    outState.putString("tab", mTabHost.getCurrentTabTag()); //save the tab selected 
    super.onSaveInstanceState(outState); 
} 

/** 
* Step 2: Setup TabHost 
*/ 
private void initialiseTabHost(Bundle args) { 
    mTabHost = (TabHost)findViewById(android.R.id.tabhost); 
    mTabHost.setup(); 
    TabInfo tabInfo = null; 
    FragmeActivity.addTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab1").setIndicator("Tab 1"), (tabInfo = new TabInfo("Tab1", Tab1Fragment.class, args))); 
    this.mapTabInfo.put(tabInfo.tag, tabInfo); 
    FragmeActivity.addTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab2").setIndicator("Tab 2"), (tabInfo = new TabInfo("Tab2", Tab2Fragment.class, args))); 
    this.mapTabInfo.put(tabInfo.tag, tabInfo); 
    FragmeActivity.addTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab3").setIndicator("Tab 3"), (tabInfo = new TabInfo("Tab3", Tab3Fragment.class, args))); 
    this.mapTabInfo.put(tabInfo.tag, tabInfo); 
    // Default to first tab 
    this.onTabChanged("Tab1"); 
    // 
    mTabHost.setOnTabChangedListener(this); 
} 

/** 
* @param activity 
* @param tabHost 
* @param tabSpec 
* @param clss 
* @param args 
*/ 
private static void addTab(FragmeActivity activity, TabHost tabHost, TabHost.TabSpec tabSpec, TabInfo tabInfo) { 
    // Attach a Tab view factory to the spec 
    tabSpec.setContent(activity.new TabFactory(activity)); 
    String tag = tabSpec.getTag(); 

    // Check to see if we already have a fragment for this tab, probably 
    // from a previously saved state. If so, deactivate it, because our 
    // initial state is that a tab isn't shown. 
    tabInfo.fragment = activity.getSupportFragmentManager().findFragmentByTag(tag); 
    if (tabInfo.fragment != null && !tabInfo.fragment.isDetached()) { 
     FragmentTransaction ft = activity.getSupportFragmentManager().beginTransaction(); 
     ft.detach(tabInfo.fragment); 
     ft.commit(); 
     activity.getSupportFragmentManager().executePendingTransactions(); 
    } 

    tabHost.addTab(tabSpec); 
} 

/** (non-Javadoc) 
* @see android.widget.TabHost.OnTabChangeListener#onTabChanged(java.lang.String) 
*/ 
public void onTabChanged(String tag) { 
    TabInfo newTab = (TabInfo) this.mapTabInfo.get(tag); 
    if (mLastTab != newTab) { 
     FragmentTransaction ft = this.getSupportFragmentManager().beginTransaction(); 
     if (mLastTab != null) { 
      if (mLastTab.fragment != null) { 
       ft.detach(mLastTab.fragment); 
      } 
     } 
     if (newTab != null) { 
      if (newTab.fragment == null) { 
       newTab.fragment = Fragment.instantiate(this, 
         newTab.clss.getName(), newTab.args); 
       ft.add(R.id.realtabcontent, newTab.fragment, newTab.tag); 
      } else { 
       ft.attach(newTab.fragment); 
      } 
     } 

     mLastTab = newTab; 
     ft.commit(); 
     this.getSupportFragmentManager().executePendingTransactions(); 
    } 
} 
} 
+0

也許倒不如說你希望看到什麼?也許這裏的人們不會使用你提出的技術(片段)? – Gangnus 2012-01-18 11:43:10

+0

@gangnus我想從一個活動移動到同一個標籤中的另一個活動 – Ghouse 2012-01-18 12:30:17

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