使用Tab的步骤:
1、在布局文件中使用FrameLayout列出Tab组件及Tab中的内容组件。
2、Activity要继承TabActivity。
3、调用TabActivity的getTabHost()方法获得TabHost对象。
4、通过TabHost创建Tab选项。
/Chapter04_UI_Tab01/src/com/amaker/test/MainActivity.java
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package com.amaker.test;
import android.app.TabActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Window;
import android.view.WindowManager;
import android.widget.TabHost;
import android.widget.Toast;
import android.widget.TabHost.OnTabChangeListener;
public class MainActivity extends TabActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/* requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);*/
TabHost th = getTabHost();
LayoutInflater.from(this).inflate(R.layout.main, th.getTabContentView(), true);
th.addTab(th.newTabSpec("all").setIndicator("所有通话记录").setContent(R.id.TextView01));
th.addTab(th.newTabSpec("ok").setIndicator("已接来电").setContent(R.id.TextView02));
th.addTab(th.newTabSpec("cancel").setIndicator("未接来电").setContent(R.id.TextView03));
th.setOnTabChangedListener(
new OnTabChangeListener() {
@Override
public void onTabChanged(String tabId) {
Toast.makeText(MainActivity.this, tabId, Toast.LENGTH_LONG).show();
}
}
);
}
}
/Chapter04_UI_Tab01/res/layout/main.xml
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<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/FrameLayout01"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="所有通话记录"></TextView>
<TextView
android:id="@+id/TextView02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="已接来电"></TextView>
<TextView
android:id="@+id/TextView03"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="未接来电"></TextView>
</FrameLayout>
通过实现一个接口TabHost.TabContentFactory的createTabContent方法来制定Tab的内容
/Chapter04_UI_Tab02/src/com/amaker/test/MainActivity.java
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package com.amaker.test;
import java.util.ArrayList;
import java.util.List;
import android.app.TabActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TabHost;
public class MainActivity extends TabActivity implements
TabHost.TabContentFactory {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
TabHost th = getTabHost();
th.addTab(th.newTabSpec("all").setIndicator("所有通话记录").setContent(this));
th.addTab(th.newTabSpec("ok").setIndicator("已接来电").setContent(this));
th
.addTab(th.newTabSpec("cancel").setIndicator("未接来电")
.setContent(this));
}
public View createTabContent(String tag) {
ListView lv = new ListView(this);
List<String> list = new ArrayList<String>();
list.add(tag);
if(tag.equals("all")){
list.add("tom");
list.add("kite");
list.add("rose");
}else if(tag.equals("ok")){
list.add("tom");
list.add("kite");
}else{
list.add("rose");
}
ArrayAdapter adapter = new ArrayAdapter(this,
android.R.layout.simple_list_item_checked, list);
lv.setAdapter(adapter);
return lv;
}
}
/Chapter04_UI_Tab02/res/layout/main.xml
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
</LinearLayout>