3.16 MonoForAndroid用户人机界面--自制计算器

Main.axml

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/widget0"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<EditText
android:id="@+id/mText1"
android:layout_width="47px"
android:layout_height="wrap_content"
android:textSize="18sp"
android:layout_x="26px"
android:layout_y="52px" />
<EditText
android:id="@+id/mText2"
android:layout_width="45px"
android:layout_height="wrap_content"
android:textSize="18sp"
android:layout_x="128px"
android:layout_y="51px" />
<TextView
android:id="@+id/mTextView2"
android:layout_width="30px"
android:layout_height="33px"
android:textSize="25sp"
android:layout_x="92px"
android:layout_y="60px" />
<TextView
android:id="@+id/mTextView3"
android:layout_width="18px"
android:layout_height="wrap_content"
android:text="="
android:textSize="25sp"
android:layout_x="189px"
android:layout_y="63px" />
<TextView
android:id="@+id/mTextView4"
android:layout_width="91px"
android:layout_height="35px"
android:textSize="25sp"
android:layout_x="219px"
android:layout_y="61px" />
<Button
android:id="@+id/mButton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="+"
android:textSize="25sp"
android:layout_x="12px"
android:layout_y="161px" />
<Button
android:id="@+id/mButton3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="-"
android:textSize="25sp"
android:layout_x="85px"
android:layout_y="159px" />
<Button
android:id="@+id/mButton4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="X"
android:textSize="25sp"
android:layout_x="158px"
android:layout_y="161px" />
<Button
android:id="@+id/mButton5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="/"
android:textSize="25sp"
android:layout_x="239px"
android:layout_y="161px" />
</AbsoluteLayout>

MainActivity.cs

using System;

using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;

namespace Ex03_16
{
[Activity(Label = "Ex03_16", MainLauncher = true, Icon = "@drawable/icon")]
public class MainActivity : Activity
{
public Button mButton2;
public Button mButton3;
public Button mButton4;
public Button mButton5;
public EditText mEditText1;
public EditText mEditText2;
public TextView mTextView2;
public TextView mTextView4;

protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);

// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
// Get our button from the layout resource,
// and attach an event to it
//Button button = FindViewById<Button>(Resource.Id.MyButton);
//button.Click += delegate { button.Text = string.Format("{0} clicks!", count++); };
mTextView2 = (TextView)FindViewById(Resource.Id.mTextView2);
mTextView4 = (TextView)FindViewById(Resource.Id.mTextView4);
mButton2 = (Button)FindViewById(Resource.Id.mButton2);
mButton3 = (Button)FindViewById(Resource.Id.mButton3);
mButton4 = (Button)FindViewById(Resource.Id.mButton4);
mButton5 = (Button)FindViewById(Resource.Id.mButton5);
mEditText1 = (EditText)FindViewById(Resource.Id.mText1);
mEditText2 = (EditText)FindViewById(Resource.Id.mText2);

mButton2.Click += mButton2_Click;
mButton3.Click += mButton3_Click;
mButton4.Click += mButton4_Click;
mButton5.Click += mButton5_Click;
}

void mButton5_Click(object sender, EventArgs e)
{
mTextView2.Text = "/";
string strRet = (int.Parse(mEditText1.Text) * int.Parse(mEditText2.Text)).ToString();
mTextView4.Text = strRet;
throw new NotImplementedException();
}

void mButton4_Click(object sender, EventArgs e)
{
mTextView2.Text = "*";
string strRet = (int.Parse(mEditText1.Text) * int.Parse(mEditText2.Text)).ToString();
mTextView4.Text = strRet;
throw new NotImplementedException();
}

void mButton3_Click(object sender, EventArgs e)
{
mTextView2.Text = "-";
string strRet = (int.Parse(mEditText1.Text) - int.Parse(mEditText2.Text)).ToString();
mTextView4.Text = strRet;
throw new NotImplementedException();
}

void mButton2_Click(object sender, EventArgs e)
{
mTextView2.Text = "+";
string strRet = (int.Parse(mEditText1.Text) + int.Parse(mEditText2.Text)).ToString();
mTextView4.Text = strRet;
throw new NotImplementedException();
}
}
}