package com.example.demo03linearlayoutdemo; import android.os.Bundle; import android.app.Activity; import android.view.Menu; import android.view.ViewGroup; import android.widget.LinearLayout; import android.widget.TextView; public class MainActivity extends Activity { //编程实现LinearLayout @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // LinearLayout linearLayout = new LinearLayout(this); // //quick key alt+cmd+v // LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT); // // // // layoutParams.setLayoutDirection(LinearLayout.VERTICAL); // // LinearLayout.LayoutParams txtParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); // TextView textView = new TextView(this); // textView.setLayoutParams(txtParams); // textView.setText("wwww.baidu.com"); // textView.setTextSize(20); // // linearLayout.addView(textView,txtParams); // super.addContentView(linearLayout,layoutParams); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }