与布局Xamari创建闪屏 [英] Create SplashScreen with layout Xamari

问题描述

我试着去创造Xamari Studio中的启动画面。

Im trying to create a splashscreen in Xamari Studio.

我做了以下内容：

• 创建了布局，在splashimage。


• 创建的主题（styles.xml），所以标题栏被隐藏。


• 创建了设置内容查看，然后一个活动让线程睡眠。

出于某种原因，没有工作，我希望你能帮助我在这里：

For some reason it did not work and I hoped you could help me out here:

SplashScreen.cs（闪屏活动）

SplashScreen.cs (SplashScreen activity)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;

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

namespace EvoApp
{
    [Activity (MainLauncher = true, NoHistory = true, Theme = "@style/Theme.Splash")]           
    public class SplashScreen : Activity
    {
        protected override void OnCreate (Bundle bundle)
        {
            base.OnCreate (bundle);

            this.SetContentView (Resource.Layout.Splash);

            ImageView image = FindViewById<ImageView> (Resource.Id.evolticLogo);
            image.SetImageResource (Resource.Drawable.Splash);

            Thread.Sleep (2000);
            StartActivity (typeof(MainActivity));
        }
    }
}

styles.xml

styles.xml

<?xml version="1.0" encoding="UTF-8" ?>
<resources>
  <style name="Theme.Splash" parent="android:Theme">
    <item name="android:windowNoTitle">true</item>
  </style>
</resources>

所以，这样的结果是一个空白SplashActivity ....

So the result of this is a blank SplashActivity....

在此先感谢！

推荐答案

屏幕是空白的，因为通过调用 Thread.sleep代码然后 StartActivity 在 OnCreateView ，你先暂停UI线程（这将导致没有显示），然后由立即退出活动使用 StartActivity 。

The screen is blank because by calling Thread.Sleep then StartActivity in OnCreateView, you are first pausing the UI thread (which will cause nothing to display) and are then exiting the activity immediately by using StartActivity.

要解决这个问题，移 Thread.sleep代码（）和 StartActivity（）进入后台线程：

To fix this, shift Thread.Sleep() and StartActivity() into a background thread:

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

    this.SetContentView (Resource.Layout.Splash);

    ImageView image = FindViewById<ImageView> (Resource.Id.evolticLogo);
    image.SetImageResource (Resource.Drawable.Splash);

    System.Threading.Tasks.Task.Run( () => {
        Thread.Sleep (2000);
        StartActivity (typeof(MainActivity));
    });
}

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