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:id="@+id/Liear_addbtn"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:text="@string/add"
android:textColor="@color/red"
android:id="@+id/Button01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"></Button>
<Button
android:text="@string/btn2"
android:textSize="20dip"
android:gravity="bottom"
android:textColor="@color/black"
android:id="@+id/Button02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"></Button>
<Button
android:text="@string/btn3"
android:textColor="@color/black"
android:id="@+id/Button03"
android:layout_width="fill_parent"
android:layout_height="wrap_content"></Button>
<Button
android:text="@string/btn4"
android:textColor="@color/black"
android:id="@+id/Button04"
android:layout_width="150dip"
android:layout_height="80dip"></Button>
<Button
android:text="@string/btn5"
android:shadowColor="#ff000000"
android:shadowDx="2"
android:shadowDy="2"
android:shadowRadius="1"
android:textColor="@color/black"
android:id="@+id/Button05"
android:layout_width="wrap_content"
android:layout_height="wrap_content"></Button>
</LinearLayout>
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="add">点击添加新按钮</string>
<string name="btn2">按钮2</string>
<string name="btn3">按钮3</string>
<string name="btn4">按钮4</string>
<string name="btn5">按钮5</string>
</resources>
在colors.xml文件中
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="red">#FF0000</color>
<color name="blue">#0000FF</color>
<color name="green">#00FF00</color>
<color name="white">#FFFFFF</color>
<color name="black">#000000</color>
</resources>
在MainActivity.java文件中
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;
import android.widget.Toast;
public class MainActivity extends Activity {
Button add_Button;
LinearLayout linear_addbtn;
int count;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
add_Button=(Button)findViewById(R.id.Button01);
add_Button.setOnClickListener(
new OnClickListener()
{
public void onClick(View v){
linear_addbtn=(LinearLayout)findViewById(R.id.Liear_addbtn);
String info="新添加的按钮";
Button tempbutton=new Button(MainActivity.this);
tempbutton.setText(info+(++count));
linear_addbtn.addView(tempbutton);
Toast.makeText(MainActivity.this, "成功添加按钮"+count, Toast.LENGTH_SHORT).show();
}
}
);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
