闲话不多说，直接上代码：
FloatingViewApp.java：
package com.cn.lhq;
import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
public class FloatingViewApp extends ListActivity {
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);setContentView(R.layout.main);
String[] mStrings = new String[] { "Item 1", "Item 2", "Item 3","Item 4", "Item 5", "Item 6", "Item 7", "Item 8", "Item 9","Item 10", "Item 11", "Item 12" };
this.setListAdapter(new ArrayAdapter(this,android.R.layout.simple_list_item_1, mStrings));
}
}
main.xml：
<?xml version="1.0" encoding="UTF-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
<TextView
android:id="@android:id/empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="123"/>
</LinearLayout>
<Button
android:id="@+id/floating_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="悬浮按钮"
android:padding="5dip"
android:layout_margin="5dip"
android:layout_gravity="right|bottom" />
</FrameLayout>
