How to build splash screen in windows forms applic

问题:

I need to show splash screen on my application start for few seconds. Does anybody know how to implement this?

Will be much appreciate for the help.

回答1:

First, create your splash screen as a borderless, immovable form with your image on it, set to initially display at the center of the screen, colored the way you want. All of this can be set from within the designer; specifically, you want to:

• Set the form\'s ControlBox, MaximizeBox, MinimizeBox and ShowIcon properties to \"False\"
• Set the StartPosition property to \"CenterScreen\"
• Set the FormBorderStyle property to \"None\"
• Set the form\'s MinimumSize and MaximumSize to be the same as its initial Size.

Then, you need to decide where to show it and where to dismiss it. These two tasks need to occur on opposite sides of the main startup logic of your program. This could be in your application\'s main() routine, or possibly in your main application form\'s Load handler; wherever you\'re creating large expensive objects, reading settings from the hard drive, and generally taking a long time to do stuff behind the scenes before the main application screen displays.

Then, all you have to do is create an instance of your form, Show() it, and keep a reference to it while you do your startup initialization. Once your main form has loaded, Close() it.

If your splash screen will have an animated image on it, the window will need to be \"double-buffered\" as well, and you will need to be absolutely sure that all initialization logic happens outside the GUI thread (meaning you cannot have your main loading logic in the mainform\'s Load handler; you\'ll have to create a BackgroundWorker or some other threaded routine.

回答2:

Here are some guideline steps...

1. Create a borderless form (this will be your splash screen)
2. On application start, start a timer (with a few seconds interval)
3. Show your Splash Form
4. On Timer.Tick event, stop timer and close Splash form - then show your main application form

Give this a go and if you get stuck then come back and ask more specific questions relating to your problems

回答3:

simple and easy solution to create splash screen

1. open new form use name \"SPLASH\"
2. change background image whatever you want
3. select progress bar
4. select timer

now set timer tick in timer:

private void timer1_Tick(object sender, EventArgs e)
{
    progressBar1.Increment(1);
    if (progressBar1.Value == 100) timer1.Stop();        
}

add new form use name \"FORM-1\"and use following command in FORM 1.

note: Splash form works before opening your form1

1. add this library

   using System.Threading;
   

2. create function

   public void splash()
   {     
       Application.Run(new splash());
   }
   

3. use following command in initialization like below.

   public partial class login : Form
   {     
       public login()
       {
           Thread t = new Thread(new ThreadStart(splash));
           t.Start();
           Thread.Sleep(15625);
   
           InitializeComponent();
   
           enter code here
   
           t.Abort();
       }
   }
   

http://solutions.musanitech.com/c-create-splash-screen/

回答4:

create splash

private void timer1_Tick(object sender, EventArgs e)
{
    counter++;
    progressBar1.Value = counter *5;
    // label2.Text = (5*counter).ToString();
    if (counter ==20)
    {
        timer1.Stop();
        this.Close();
    }
}
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.BackColor = System.Drawing.SystemColors.GradientInactiveCaption;
this.ClientSize = new System.Drawing.Size(397, 283);
this.ControlBox = false;
this.Controls.Add(this.label2);
this.Controls.Add(this.progressBar1);
this.Controls.Add(this.label1);
this.ForeColor = System.Drawing.SystemColors.ControlLightLight;
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
this.Name = \"Splash\";
this.ShowIcon = false;
this.ShowInTaskbar = false;
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.ResumeLayout(false);
this.PerformLayout();

Then in your application

sp = new Splash();
sp.ShowDialog();

回答5:

The other answers here cover this well, but it is worth knowing that there is built in functionality for splash screens in Visual Studio: If you open the project properties for the windows form app and look at the Application tab, there is a \"Splash screen:\" option at the bottom. You simply pick which form in your app you want to display as the splash screen and it will take care of showing it when the app starts and hiding it once your main form is displayed.

You still need to set up your form as described above (with the correct borders, positioning, sizing etc.)

回答6:

There is A Pretty Good Splash Screen over on CodeProject.

It comes with

• Fade In
• Progress Bar
• Status Label
• Fade Out
• Double Click to dismiss

The author has recently gone through and updated the code. It is really quite a piece of work, and is a collaboration between many different developers with good ideas.

回答7:

First you should create a form with or without Border (border-less is preferred for these things)

public class SplashForm : Form
{
    Form _Parent;
    BackgroundWorker worker;
    public SplashForm(Form parent)
    {
         InitializeComponent();
         BackgroundWorker worker = new BackgroundWorker();
         this.worker.DoWork += new System.ComponentModel.DoWorkEventHandler(this.worker _DoWork);
         backgroundWorker1.RunWorkerAsync();
         _Parent = parent;
    }
    private void worker _DoWork(object sender, DoWorkEventArgs e)
    {
         Thread.sleep(500);
         this.hide();
         _Parent.show();
    }     
}

At Main you should use that

   static class Program
        {
            [STAThread]
            static void Main()
            {
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                Application.Run(new SplashForm());
            }
        }

回答8:

I wanted a splash screen that would display until the main program form was ready to be displayed, so timers etc were no use to me. I also wanted to keep it as simple as possible. My application starts with (abbreviated):

static void Main()
{
    Splash frmSplash = new Splash();
    frmSplash.Show();
    Application.Run(new ReportExplorer(frmSplash));
}

Then, ReportExplorer has the following:

public ReportExplorer(Splash frmSplash)
{
    this.frmSplash = frmSplash;
    InitializeComponent();
}

Finally, after all the initialisation is complete:

if (frmSplash != null) 
{
     frmSplash.Close();
     frmSplash = null;
}

Maybe I\'m missing something, but this seems a lot easier than mucking about with threads and timers.

回答9:

Maybe a bit late to answer but i would like to share my way. I found an easy way with threads in the main program for a winform application.

Lets say you have your form \"splashscreen\" with an animation, and your \"main\" which has all your application code.

 [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Thread mythread;
        mythread = new Thread(new ThreadStart(ThreadLoop));
        mythread.Start();
        Application.Run(new MainForm(mythread));           
    }

    public static void ThreadLoop()
    {
        Application.Run(new SplashScreenForm());           
    }

In your main form in the constructor:

 public MainForm(Thread splashscreenthread)
    {
        InitializeComponent();

        //add your constructor code

        splashscreenthread.Abort();            
    }

This way the splashscreen will last just the time for your main form to load.

Your splashcreen form should have his own way to animate/display information. In my project my splashscreen start a new thread, and every x milliseconds it changes his main picture to another which is a slightly different gear, giving the illusion of a rotation.

example of my splashscreen:

int status = 0;
private bool IsRunning = false;
    public Form1()
    {
        InitializeComponent();
        StartAnimation();
    }

    public void StartAnimation()
    {
        backgroundWorker1.WorkerReportsProgress = false;
        backgroundWorker1.WorkerSupportsCancellation = true;
        IsRunning = true;
        backgroundWorker1.RunWorkerAsync();
    }


    public void StopAnimation()
    {
        backgroundWorker1.CancelAsync();
    }

    delegate void UpdatingThreadAnimation();
    public void UpdateAnimationFromThread()
    {

        try
        {
            if (label1.InvokeRequired == false)
            {
                UpdateAnimation();
            }
            else
            {
                UpdatingThreadAnimation d = new UpdatingThreadAnimation(UpdateAnimationFromThread);
                this.Invoke(d, new object[] { });
            }
        }
        catch(Exception e)
        {

        }
    }

 private void UpdateAnimation()
    {
    if(status ==0) 
    {
    // mypicture.image = image1
     }else if(status ==1)
     {
    // mypicture.image = image2
     }
    //doing as much as needed

      status++;
        if(status>1) //change here if you have more image, the idea is to set a cycle of images
        {
            status = 0;
        }
        this.Refresh();
    }

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
    {
        BackgroundWorker worker = sender as BackgroundWorker;
        while (IsRunning == true)
        {
            System.Threading.Thread.Sleep(100);
            UpdateAnimationFromThread();
        }
    }

Hope this will help some people. Sorry if i have made some mistakes. English is not my first language.

回答10:

Try this code

public partial class ssplashscreen : Form
    {
        public ssplashscreen()
        {                
            InitializeComponent();    
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            progressBar1.Increment(1);
            if (progressBar1.Value == 100)
            {
                timer1.Stop();
                this.Hide();
                Form frm = new login();
                frm.Show();
            }
        }
    }

回答11:

Try This:

namespace SplashScreen
{
    public partial class frmSplashScreen : Form
    {
        public frmSplashScreen()
        {
            InitializeComponent();
        }

        public int LeftTime { get; set; }

        private void frmSplashScreen_Load(object sender, EventArgs e)
        {
            LeftTime = 20;
            timer1.Start();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (LeftTime > 0)
            {
                LeftTime--;
            }
            else
            {
                timer1.Stop();
                new frmHomeScreen().Show();
                this.Hide();
            }
        }
    }
}