android笔记二（水平布局与垂直布局）

在strings.xml文件中

<resources>

    <string name="app_name">ButtonTest</string>
    <string name="hello_world">Hello world!</string>
    <string name="menu_settings">Settings</string>
    <string name="title_activity_main">MainActivity</string>
 <string name="addbtn1">添加水平按钮</string>
 <string name="addbtn2">添加垂直按钮</string>
</resources>

在activity_main.xml文件中

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <Button
        android:text="@string/addbtn1"
        android:id="@+id/Button01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
    <Button
        android:text="@string/addbtn2"
        android:id="@+id/Button02"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
 <LinearLayout
     android:id="@+id/LinearLayout01"
     android:orientation="horizontal"
     android:layout_width="wrap_content"
        android:layout_height="wrap_content">
 </LinearLayout>
 <LinearLayout
     android:id="@+id/LinearLayout02"
     android:orientation="vertical"
     android:layout_width="wrap_content"
        android:layout_height="wrap_content">
 </LinearLayout>
</LinearLayout>

在MainActivity.java中

package com.example.buttontest;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.LinearLayout;

public class MainActivity extends Activity {
 Button addhorizontal_Button;
 Button addvertical_Button;
 LinearLayout horizontal_11;
 LinearLayout vertical_11;
 int count_horizontal;
 int count_vertical;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        addhorizontal_Button=(Button)findViewById(R.id.Button01);
        addhorizontal_Button.setOnClickListener(
         new OnClickListener()
         {
          public void onClick(View v)
          {
           Button tempButton=new Button(MainActivity.this);
           String result="添加水平按钮"+(++count_horizontal);
           tempButton.setText(result);
           horizontal_11=(LinearLayout)findViewById(R.id.LinearLayout01);
           horizontal_11.addView(tempButton);
          }
         }
        );
        addvertical_Button=(Button)findViewById(R.id.Button02);
        addvertical_Button.setOnClickListener(
         new OnClickListener()
         {
          public void onClick(View v)
          {
           Button tempButton=new Button(MainActivity.this);
           String result="添加垂直控件"+(++count_vertical);
           tempButton.setText(result);
           vertical_11=(LinearLayout)findViewById(R.id.LinearLayout02);
           vertical_11.addView(tempButton);
          }
         }
        );
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
}