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   源码介绍

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package com.example.datastorage;


import android.os.Bundle;
import android.app.Activity;
import android.app.TabActivity;
import android.content.Intent;
import android.view.Menu;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;

public class MainActivity extends TabActivity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TabHost tabHost = (TabHost) findViewById(android.R.id.tabhost);

		/** tid# is firstTabSpec Id. Its used to access outside. */
		TabSpec tabAddMsg = tabHost.newTabSpec("tid1");
		TabSpec tabDisMsg = tabHost.newTabSpec("tid2");
		TabSpec tabAddMsgSQL = tabHost.newTabSpec("tid3");
		TabSpec tabDisMsgSQL = tabHost.newTabSpec("tid4");
		
		tabAddMsg.setIndicator(getResources().getString(R.string.tab_add),
				getResources().getDrawable(R.drawable.ic_tab_dir)).setContent(
				new Intent(this, AddMsg.class));
		tabDisMsg.setIndicator(getResources().getString(R.string.tab_dis),
				getResources().getDrawable(R.drawable.ic_tab_pic)).setContent(
				new Intent(this, DisMsg.class));
		
		tabAddMsgSQL.setIndicator(getResources().getString(R.string.tab_add),
				getResources().getDrawable(R.drawable.ic_tab_dir)).setContent(
				new Intent(this, AddMsgSQL.class));
		tabDisMsgSQL.setIndicator(getResources().getString(R.string.tab_dis),
				getResources().getDrawable(R.drawable.ic_tab_pic)).setContent(
				new Intent(this, DisMsgSQL.class));
		
		tabHost.addTab(tabAddMsg);
		tabHost.addTab(tabDisMsg);
		tabHost.addTab(tabAddMsgSQL);
		tabHost.addTab(tabDisMsgSQL);
    }

  
}