<?xml version=”1.0″ encoding=”utf-8″?>
<LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android”
android:layout_width=”fill_parent”
android:layout_height=”fill_parent”
android:gravity=”center”
android:orientation=”vertical” >

<TextView
android:id=”@+id/textview”
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:layout_marginBottom=”@dimen/padding_xlarge” />

<SeekBar
android:id=”@+id/seekbar”
android:layout_width=”match_parent”
android:layout_height=”wrap_content”
android:progress=”50″ />

</LinearLayout>

final TextView tv = (TextView) findViewById(R.id.textview);
final SeekBar sb = (SeekBar) findViewById(R.id.seekbar);
tv.setText(String.valueOf(sb.getProgress()));
sb.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

@Override
public void onStopTrackingTouch(SeekBar seekBar) {
tv.setText(“拖曳結束”);
}

@Override
public void onStartTrackingTouch(SeekBar seekBar) {
tv.setText(“拖曳開始”);
}

@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
tv.setText(String.valueOf(progress));
}
});