【发布时间】:2016-06-29 14:57:56
【问题描述】:
我将 Visual Studio 2015 与 Xamarin 一起使用。 我将我的项目命名为“Phoneword” 我在 Xamarin 的网站上看到了此代码,例如教程/示例。
TranslateButton 和 CallButton 成员的错误相同。
MainActivity.cs
using System;
using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
namespace Phoneword
{
[Activity(Label = "Phoneword", MainLauncher = true)]
public class MainActivity : Activity
{
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
// Our code will go here
// Get our UI controls from the loaded layout:
EditText phoneNumberText = (EditText)FindViewById(Resource.Id.PhoneNumberText);
Button translateButton = FindViewById<Button>(Resource.Id.TranslateButton);
Button callButton = FindViewById<Button>(Resource.Id.CallButton);
// Disable the "Call" button
callButton.Enabled = false;
// Add code to translate number
string translatedNumber = string.Empty;
translateButton.Click += (object sender, EventArgs e) =>
{
// Translate user's alphanumeric phone number to numeric
translatedNumber = Core.PhonewordTranslator.ToNumber(phoneNumberText.Text);
if (String.IsNullOrWhiteSpace(translatedNumber))
{
callButton.Text = "Call";
callButton.Enabled = false;
}
else
{
callButton.Text = "Call " + translatedNumber;
callButton.Enabled = true;
}
};
callButton.Click += (object sender, EventArgs e) =>
{
// On "Call" button click, try to dial phone number.
var callDialog = new AlertDialog.Builder(this);
callDialog.SetMessage("Call " + translatedNumber + "?");
callDialog.SetNeutralButton("Call", delegate {
// Create intent to dial phone
var callIntent = new Intent(Intent.ActionCall);
callIntent.SetData(Android.Net.Uri.Parse("tel:" + translatedNumber));
StartActivity(callIntent);
});
callDialog.SetNegativeButton("Cancel", delegate { });
// Show the alert dialog to the user and wait for response.
callDialog.Show();
};
}
}
}
资源/布局/Main.axml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:text="Enter a Phoneword"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/textView1" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/PhoneNumberText"
android:text="1-855-XAMARIN" />
<Button
android:text="Translate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/TranslateButton" />
<Button
android:text="Call"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/CallButton" />
</LinearLayout>
我是 Android 开发的初学者,如果您需要其他信息,我会尝试添加更多详细信息。 请帮助我
【问题讨论】:
-
你的 axml 文件是否有正确的构建操作stackoverflow.com/questions/23955548/…
-
是的,axml 文件具有正确的构建操作。
标签: c# android visual-studio xamarin xamarin.android