我需要在选项卡上有一个mapview.
attached example显示了使用意图时如何执行此操作.
现在,我想更改mapview的缩放级别.
尽管我正在使用意图(或者完全存在),但我该怎么做？
不同的解决方案)？

活动代码：

public class TabMapsExample extends TabActivity {    
    TabHost mTabHost;        
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);  
        Context ctx = this.getApplicationContext();         
        //tab 1
        mTabHost = getTabHost();
        TabSpec tabSpec1 = mTabHost.newTabSpec("tab_test1");
        tabSpec1.setIndicator("Map1");
        Intent i1 = new Intent(ctx,MapTabView.class);
        tabSpec1.setContent(i1);
        mTabHost.addTab(tabSpec1);          
        //tab2
        mTabHost = getTabHost();
        TabSpec tabSpec2 = mTabHost.newTabSpec("tab_test1");
        tabSpec2.setIndicator("Map2");
        Intent i2 = new Intent(ctx,MapTabView.class);
        tabSpec2.setContent(i2);
        mTabHost.addTab(tabSpec2);          
        //tab 3
        mTabHost = getTabHost();
        TabSpec tabSpec3 = mTabHost.newTabSpec("tab_test1");
        tabSpec3.setIndicator("Map");
        Intent i3 = new Intent(ctx,MapTabView.class);
        tabSpec3.setContent(i3);
        mTabHost.addTab(tabSpec3);    
    }
}

布局代码：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/maptablayout" android:orientation="vertical"
    android:layout_width="fill_parent" android:layout_height="fill_parent">
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_height="fill_parent" android:layout_width="fill_parent"
        android:background="#000000" android:orientation="vertical">
        <TextView xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="fill_parent" android:layout_height="50px"
            android:id="@+id/textview" />
        <com.google.android.maps.MapView
            android:id="@+id/mapview" android:layout_width="fill_parent"
            android:layout_height="fill_parent" android:clickable="true"
            android:apiKey="" />
    </LinearLayout>
</RelativeLayout>

谢谢