Android和tabactivity

Question

我有下面的例子：

当我点击Tab2时，在安卓屏幕开始和Tabs行之间的活动并不适合。为什么？我可以做些什么来试着适应屏幕？

Main.java

public class Tabs_androidActivity extends ActivityGroup {
    public TabHost mTabHost;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    TabHost tabHost=(TabHost)findViewById(R.id.tabHost);
    tabHost.setup(this.getLocalActivityManager());


    TabSpec spec1=tabHost.newTabSpec("Tab 1");
    spec1.setContent(R.id.tab1);
    spec1.setIndicator("Tab 1");

    TabSpec spec2=tabHost.newTabSpec("Tab 2");
    spec2.setIndicator("Tab 2");
    spec2.setContent(new Intent(this, Tab2.class));



    TabSpec spec3=tabHost.newTabSpec("Tab 3");
    spec3.setIndicator("Tab 3");
    spec3.setContent(R.id.tab3);



    tabHost.addTab(spec1);
    tabHost.addTab(spec2);
    tabHost.addTab(spec3);

    tabHost.setCurrentTab(0);

    }

}

Tab2.java
public class Tab2 extends  Activity {

    /** Called when the activity is first created. */ 

    TextView call;
@Override 

 public void onCreate(Bundle savedInstanceState) { 

    super.onCreate(savedInstanceState); 

    setContentView(R.layout.logs);
  ///....


}
}

和main.xml

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/tabHost"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical"
         >

        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true" />

        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_alignParentTop="true" >

            <LinearLayout
                android:id="@+id/tab1"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical" >


            </LinearLayout>

            <LinearLayout
                android:id="@+id/tab2"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical" >


            </LinearLayout>

            <LinearLayout
                android:id="@+id/tab3"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical" >


            </LinearLayout>


        </FrameLayout>
    </RelativeLayout>

</TabHost>

logs.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/RelativeLayout01"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <TextView
        android:id="@+id/call"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true" >
    </TextView>

</RelativeLayout>

Answer 1

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">

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical"
         >

        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" 
            android:layout_marginTop="60dp"/>
       <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:padding="5dp"/>
    </RelativeLayout>

</TabHost>

您的选项卡活动：

public class TabActivity extends android.app.TabActivity{
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.tab_layout);
//  Resources res=getResources();
    TabHost tabHost=getTabHost();
    TabHost.TabSpec spec;
    Intent intent;

    intent=new Intent().setClass(this, Tab1Activity.class);
    spec=tabHost.newTabSpec("tab1").setIndicator(yourimageID).setContent(intent);
    tabHost.addTab(spec);

    intent=new Intent().setClass(this, Tab2Activity.class);
    spec=tabHost.newTabSpec("tab2").setIndicator(yourimageID).setContent(intent);
    tabHost.addTab(spec);

    intent=new Intent().setClass(this, Tab3Activity.class);
    spec=tabHost.newTabSpec("tab3").setIndicator(yourimageID).setContent(intent);
    tabHost.addTab(spec);

    tabHost.setCurrentTab(0);
    }
}