Android TabHost 動態修改表徵圖或者動態改變標題

abHost mTabHost;  /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.main);    //取得TabHost對象  mTabHost = getTabHost();      /* 為TabHost添加標籤 */  //建立一個newTabSpec(newTabSpec)  //設定其標籤和表徵圖(setIndicator)  //設定內容(setContent)     mTabHost.addTab(mTabHost.newTabSpec("tab_1")       .setIndicator("TAB 1",getResources().getDrawable(R.drawable.img1))       .setContent(R.id.textview1));     mTabHost.addTab(mTabHost.newTabSpec("tab_2")       .setIndicator("TAB 2",getResources().getDrawable(R.drawable.img2))       .setContent(R.id.textview2));     mTabHost.addTab(mTabHost.newTabSpec("tab_3")       .setIndicator("TAB 3",getResources().getDrawable(R.drawable.img3))       .setContent(R.id.textview3));         //設定TabHost的背景顏色     mTabHost.setBackgroundColor(Color.argb(150, 22, 70, 150));     //設定TabHost的背景圖片資源     mTabHost.setBackgroundResource(R.drawable.bg0);         //設定當前顯示哪一個標籤     mTabHost.setCurrentTab(0);         //標籤切換事件處理，setOnTabChangedListener     mTabHost.setOnTabChangedListener(new OnTabChangeListener()     {            @Override            public void onTabChanged(String tabId)            {            }                 }); }}轉入核心問題吧。1.將TabHost的標題的表徵圖改變吧。首先我們應該擷取到布局View，再擷取對應的控制項，表徵圖應該是ImageView，文本應該是TextView。代碼如下：View mView = mTabHost.getTabWidget().getChildAt(0);//0是代表第一個TabImageView imageView = (ImageView)mView.findViewById(Android.R.id.icon);//擷取控制項imageViewimageView .setImageDrawable(getResources().getDrawable(R.drawable.img3)); //改變我們需要的表徵圖imageView = (ImageView)mTabHost.getTabWidget().getChildAt(1).findViewById(Android.R.id.icon);imageView .setImageDrawable(getResources().getDrawable(R.drawable.img2));imageView  = (ImageView)mTabHost.getTabWidget().getChildAt(2).findViewById(Android.R.id.icon);imageView .setImageDrawable(getResources().getDrawable(R.drawable.img1));2.將TabHost的標題改變吧。TextView textview = (TextView)mTabHost.getTabWidget().getChildAt(0).findViewById(Android.R.id.title);textview.setTextSize(1);textview = (TextView)mTabHost.getTabWidget().getChildAt(1).findViewById(Android.R.id.title);textview.setTextSize(2);textview = (TextView)mTabHost.getTabWidget().getChildAt(2).findViewById(Android.R.id.title);textview.setTextSize(3);其實擷取了View，我們還可以再此基礎上可以設定標題的顏色啊，字型啊，字型大小等等哦。