TabWidget負責處理與User進行互動的Tab，TabContent是根據所選的Tab來顯示相對應的內容。
實作方法如下：
main.xml
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="@+id/next_button"
android:layout_toRightOf="@+id/up_button"
android:fillViewport="true"
android:scrollbars="none" >
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</HorizontalScrollView>
</RelativeLayout>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="@+id/textview01"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/textview02"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/textview03"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/textview04"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/textview05"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</FrameLayout>
</LinearLayout>
</TabHost>
Tab.java
public class Tab extends TabActivity
{
TabHost tabhost;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
//.xml有使用TabHost時才要寫
setContentView(R.layout.main);
//.xml沒有使用TabHost時才要寫
//LayoutInflater.from(Tab.this).inflate(R.layout.main, tabhost.getTabContentView(), true);
tabhost = getTabHost();
tabhost.addTab(tabhost.newTabSpec("tab1").setIndicator("Tab1", getResources().getDrawable(android.R.drawable.ic_btn_speak_now)).setContent(R.id.textview01));
tabhost.addTab(tabhost.newTabSpec("tab2").setIndicator("Tab2").setContent(R.id.textview02));
tabhost.addTab(tabhost.newTabSpec("tab3").setIndicator("Tab3").setContent(R.id.textview03));
tabhost.addTab(tabhost.newTabSpec("tab4").setIndicator("Tab4").setContent(R.id.textview04));
tabhost.addTab(tabhost.newTabSpec("tab5").setIndicator("Tab5").setContent(R.id.textview05));
TabWidget tabWidget = tabhost.getTabWidget();
//取得Tab的數量
int count = tabWidget.getChildCount();
//取得手機的螢幕尺寸
DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
int screenWidth = displayMetrics.widthPixels;
int screenheight = displayMetrics.heightPixels;
if (count >= 3)
{
for (int i = 0; i < count; i++)
{
tabWidget.getChildTabViewAt(i).setMinimumWidth((screenWidth) / 3);
}
}
//設置TabHost點選後的監聽器
tabhost.setOnClickListener(new TabHostOnClickListener());
//設置TabHost的Tab切換後的監聽器
tabhost.setOnTabChangedListener(new TabHostOnTabChangedListener());
}
class TabHostOnClickListener implements OnClickListener
{
@Override
public void onClick(View v)
{
Toast.makeText(Tab.this, "OnClick~", Toast.LENGTH_SHORT).show();
}
}
class TabHostOnTabChangedListener implements OnTabChangeListener
{
@Override
public void onTabChanged(String tab)
{
//必須要與當初設置Tab的Space名稱相同
if(tab.equals("tab1"))
{
Toast.makeText(Tab.this, "Tab1~", Toast.LENGTH_SHORT).show();
}
if(tab.equals("tab2"))
{
Toast.makeText(Tab.this, "Tab2~", Toast.LENGTH_SHORT).show();
}
if(tab.equals("tab3"))
{
Toast.makeText(Tab.this, "Tab3~", Toast.LENGTH_SHORT).show();
}
if(tab.equals("tab4"))
{
Toast.makeText(Tab.this, "Tab4~", Toast.LENGTH_SHORT).show();
}
if(tab.equals("tab5"))
{
Toast.makeText(Tab.this, "Tab5~", Toast.LENGTH_SHORT).show();
}
}
}
}
執行結果如下：
