TableRow动态添加组件时遇到的问题

public class Main extends Activity {
	ScrollView scroll;
	TableLayout tl1;
	public void onCreate(Bundle savedInstanceState){
		super.onCreate(savedInstanceState);
		this.setContentView(R.layout.main);	
		tl1 = (TableLayout)this.findViewById(R.id.tl1);
		TableRow tr = new TableRow(this);
		tr.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
		TextView tv = new TextView(this);
		tv.setText("tex");
		tv.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
		tr.addView(tv);
		tl1.addView(tr,new TableLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
	}

敲代码时，如果直接敲LayoutParams这个类的话，默认导入的包是android.view.ViewGroup.LayoutParams;

如果导入了这个包，实际上在Activity中是无法正常显示要加入的View组件的

真正要导入的包是android.widget.TableRow.LayoutParams;不过这个包在Eclipse中并没有提示出来，装了ADT15依然没有提示。

From:http://blog.csdn.net/qqii3184/article/details/7193265