安卓精美底部导航栏的实现TabHost

<?xml version="1.0" encoding="UTF-8"?>

package com.andyidea.tabdemo;

import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Window;
import android.widget.CompoundButton;
import android.widget.RadioButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.TabHost;

public class MainTabActivity extends TabActivity implements OnCheckedChangeListener{

private TabHost mTabHost;
private Intent mAIntent;
private Intent mBIntent;
private Intent mCIntent;
private Intent mDIntent;
private Intent mEIntent;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.maintabs);

this.mAIntent = new Intent(this,AActivity.class);
this.mBIntent = new Intent(this,BActivity.class);
this.mCIntent = new Intent(this,CActivity.class);
this.mDIntent = new Intent(this,DActivity.class);
this.mEIntent = new Intent(this,EActivity.class);

((RadioButton) findViewById(R.id.radio_button0))
.setOnCheckedChangeListener(this);
((RadioButton) findViewById(R.id.radio_button1))
.setOnCheckedChangeListener(this);
((RadioButton) findViewById(R.id.radio_button2))
.setOnCheckedChangeListener(this);
((RadioButton) findViewById(R.id.radio_button3))
.setOnCheckedChangeListener(this);
((RadioButton) findViewById(R.id.radio_button4))
.setOnCheckedChangeListener(this);

setupIntent();
}

@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
switch (buttonView.getId()) {
case R.id.radio_button0:
this.mTabHost.setCurrentTabByTag("A_TAB");
break;
case R.id.radio_button1:
this.mTabHost.setCurrentTabByTag("B_TAB");
break;
case R.id.radio_button2:
this.mTabHost.setCurrentTabByTag("C_TAB");
break;
case R.id.radio_button3:
this.mTabHost.setCurrentTabByTag("D_TAB");
break;
case R.id.radio_button4:
this.mTabHost.setCurrentTabByTag("MORE_TAB");
break;
}
}

}

private void setupIntent() {
this.mTabHost = getTabHost();
TabHost localTabHost = this.mTabHost;

localTabHost.addTab(buildTabSpec("A_TAB", R.string.main_home,
R.drawable.icon_1_n, this.mAIntent));

localTabHost.addTab(buildTabSpec("B_TAB", R.string.main_news,
R.drawable.icon_2_n, this.mBIntent));

localTabHost.addTab(buildTabSpec("C_TAB",
R.string.main_manage_date, R.drawable.icon_3_n,
this.mCIntent));

localTabHost.addTab(buildTabSpec("D_TAB", R.string.main_friends,
R.drawable.icon_4_n, this.mDIntent));

localTabHost.addTab(buildTabSpec("MORE_TAB", R.string.more,
R.drawable.icon_5_n, this.mEIntent));

}

private TabHost.TabSpec buildTabSpec(String tag, int resLabel, int resIcon,
final Intent content) {
return this.mTabHost.newTabSpec(tag).setIndicator(getString(resLabel),
getResources().getDrawable(resIcon)).setContent(content);
}
}