package com.example.testframelayout;import android.app.Activity;import android.graphics.Color;import android.os.Bundle;import android.view.Menu;import android.view.ViewGroup;import android.widget.TextView;public class MainActivity extends Activity {	private LinearLayout root;	@Override	public void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		root = new LinearLayout(this);		simpleAddView();		setContentView(root);	}	private void simpleAddView() {// 简单的用代码添加布局		LinearLayout linlayout = new LinearLayout(this);		LinearLayout.LayoutParams linLayoutParams = new LinearLayout.LayoutParams(				ViewGroup.LayoutParams.MATCH_PARENT,				ViewGroup.LayoutParams.WRAP_CONTENT);		linlayout.setBackgroundColor(Color.BLUE);		TextView textView = new TextView(this);		textView.setText("测试");		linlayout.addView(textView);		root.addView(linlayout, linLayoutParams);	}	@Override	public boolean onCreateOptionsMenu(Menu menu) {		getMenuInflater().inflate(R.menu.activity_main, menu);		return true;	}}