seekbar.setOnSeekBarChangeListener(this);

}

@Override

public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) {

Log.d("tag","changed:" +String.valueOf(arg0.getProgress()));

}

@Override

public void onStartTrackingTouch(SeekBar seekBar) {

Log.d("tag","start:" +String.valueOf(seekBar.getProgress()));

}

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

Log.d("tag","stop:" +String.valueOf(seekBar.getProgress()));

}

}

TabHost

< xml version="1.0" encoding="utf-8" >

android:layout_width="fill_parent"

android:layout_height="fill_parent" >

android:id="@+id/tab1"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical" >

android:id="@+id/buttonId"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="切换到tab2" />

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:src="@drawable/p2"

android:scaleType="fitCenter"

android:layout_marginTop="20dp"

/>

/////////////// TabHostActivity///////////

package cn.class3g.activity;

import android.app.TabActivity;

import android.content.Intent;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TabHost;

public class TabHostActivity extends TabActivity {

TabHost tabHost = null;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

tabHost = this.getTabHost();

LayoutInflater inflater = LayoutInflater.from(this);

inflater.inflate(R.layout.tabhost, tabHost.getTabContentView(), true);

// tabHost.addTab(tabHost.newTabSpec("tab2").setIndicator(""));

tabHost.addTab(tabHost.newTabSpec("tab1").setIndicator("切换标签")

.setContent(R.id.tab1));

tabHost.addTab(tabHost.newTabSpec("tab2").setIndicator("标签2")

.setContent(new Intent(this, ProgressBarActivity.class)));

findViews();

}

private void findViews() {

Button btn = (Button) this.findViewById(R.id.buttonId);

btn.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// tabHost.setCurrentTab(1);

tabHost.setCurrentTabByTag("tab2");

}

});

}

}