Android--取得布局中指定控件的宽高

import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.Button;public class GetWH extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        View view = getLayoutInflater().inflate(R.layout.main, null);        Button button = (Button) view.findViewById(R.id.button2);        int width = button.getLayoutParams().width;        int height = button.getLayoutParams().height;        Log.i("System.out", width + "-----" +  height);    }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/linearlayout"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="horizontal" >    <Button        android:id="@+id/button2"        android:layout_width="80px"        android:layout_height="80dp"        android:text="Button" /></LinearLayout>

从结果中大家可以看出些什么呢？