Android TabHost用法详解

最近研究了一下Contacts源码，仿照上面自己写了一个TabHostTest程序，现整理如下：

main.xml布局文件：

[html]
<?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="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TabWidget android:id="@android:id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
        />

        <FrameLayout android:id="@android:id/tabcontent"
            android:layout_width="match_parent"
            android:layout_height="0dip"
            android:layout_weight="1"
        />
    </LinearLayout>
</TabHost>

inner.xml文件：

[html]
<?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="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
s
        <FrameLayout android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="0dip"
            android:layout_weight="1"
        />

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

    </LinearLayout>
</TabHost>
Main.java （主Activity类）：

[java]
package com.android.test;

import android.app.Activity;
import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.provider.CallLog.Calls;
import android.provider.Contacts.Intents.UI;
import android.view.Window;
import android.widget.TabHost;

public class Main extends TabActivity implements TabHost.OnTabChangeListener {
    private static final int TAB_INDEX_DIALER = 0;
    private static final int TAB_INDEX_CALL_LOG = 1;
    private static final int TAB_INDEX_CONTACTS = 2;
    private static final int TAB_INDEX_FAVORITES = 3;

    private TabHost mTabHost;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        final Intent intent = getIntent();

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        setContentView(R.layout.main);

        mTabHost = getTabHost();
        mTabHost.setOnTabChangedListener(this);

        // Setup the tabs
        setupDialerTab();
        setupCallLogTab();
        setupContactsTab();
        setupFavoritesTab();

        setCurrentTab(intent);
    }

    public void onTabChanged(String tabId) {
         Activity activity = getLocalActivityManager().getActivity(tabId);
            if (activity != null) {
                activity.onWindowFocusChanged(true);
            }
    }
     private void setupCallLogTab() {
            // Force the class since overriding tab entries doesn't work
            Intent intent = new Intent("com.android.phone.action.RECENT_CALLS");

            intent.setClass(this, Inner.class);
            mTabHost.addTab(mTabHost.newTabSpec("call_log")
                    .setIndicator("通话记录",
                            getResources().getDrawable(R.drawable.ic_tab_unselected_recent))
                    .setContent(intent));
        }
&

补充：移动开发 , Android ,