How to open the application automatically after boot? (Android 10)

[oguzhan51511]

I am able to display toast message in BootReceiver. I cannot start the application. I managed to autostart on a device with android api 25, but the target device is Android api 29. Any ideas on this?

How can I start the application automatically when Android boot complate?

BootReceiver.cs

using Android.App;
using Android.Content;
using Android.Widget;

namespace MaRadio.Platforms.Android
{
[BroadcastReceiver(Label = "BootReceiver", DirectBootAware = true, Enabled = true, Exported = true)]
[IntentFilter(new[] { Intent.ActionBootCompleted }, Priority = (int)IntentFilterPriority.HighPriority)]

public class BootReceiver : BroadcastReceiver
{
    public override void OnReceive(Context context, Intent intent)
    {
        Toast.MakeText(context, " Service Running ", ToastLength.Long)?.Show();
        var launch_intent = Platform.CurrentActivity?.PackageManager?.GetLaunchIntentForPackage(Platform.CurrentActivity.PackageName);
        if (launch_intent != null)
        {
            launch_intent.AddFlags(ActivityFlags.ReorderToFront);
            launch_intent.AddFlags(ActivityFlags.NewTask);
            launch_intent.AddFlags(ActivityFlags.ResetTaskIfNeeded);
            Platform.CurrentActivity?.StartActivity(launch_intent);
        }
    }
}

}

AndroidManifest.xml

android.permission.RECEIVE_BOOT_COMPLETED
android.permission.SYSTEM_ALERT_WINDOW
android.permission.ACCESS_NETWORK_STATE
android.permission.INTERNET

[mgungorchamp]

Did you find the solution?

[mgungorchamp]

Another Question: I am not sure it's related to this: My app perfectly starts at boot, thank you again, using Amazon Fire TV HDMI Stick, but after a while, the screen goes blank, like energy saver mode, how can I make it on all the time programmatically, since Fire TV does not have any option to prevent that.

[mgungorchamp]

I think I found it:
<uses-permission android:name="android.permission.FLAG_KEEP_SCREEN_ON"/>

[oguzhan51511]

Using the KeepScreenOn Property: In MAUI, you can prevent the screen from turning off by using the KeepScreenOn property on a view derived from the Page or ContentView class. For example, you can set the KeepScreenOn property for a ContentPage as follows:

``using Microsoft.Maui.Controls;

public class MyContentPage : ContentPage
{
public MyContentPage()
{
// Set the KeepScreenOn property to true to prevent the screen from turning off
KeepScreenOn = true;
}
}
``

By doing this, when MyContentPage is used, the screen will stay on.

Platform-Specific Customizations: If you need more control and customization, you can make platform-specific customizations. For example, in Android, you can make customizations in the MainActivity.cs file, as shown in the following example:

``using Microsoft.Maui;
using Microsoft.Maui.Controls.PlatformConfiguration.AndroidSpecific;
using Microsoft.Maui.Controls.PlatformConfiguration;
using Application = Microsoft.Maui.Controls.Application;

namespace MyMauiApp
{
public class MainActivity : MauiAppCompatActivity
{
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);

        // Platform-specific customization to prevent the screen from turning off
        this.On<Android>().UseWindowSoftInputModeAdjust(WindowSoftInputModeAdjust.Resize);
        this.On<Android>().KeepScreenOn();

        // Other necessary code...
    }
}

}
``

In this example, we're using the KeepScreenOn() method in the OnCreate method of the MainActivity class to prevent the screen from turning off.

These methods are two common approaches to preventing the screen from turning off in a MAUI application using C# and .NET MAUI. Depending on your requirements, you can choose the method that best suits your application

[mgungorchamp]

Thank you again,
I needed to use DeviceDisplay.Current.KeepScreenOn = true; otherwise it did not recognize KeepScreenOn parameter. I hope I am doing the right thing.

[mgungorchamp]

Another Question: When I update the app or reinstall, I do not want it to wipe out /delete the files under the FileSystem.Current.AppDataDirectory is it related to these settings?

[HuaFangYun]

Can you provide a demo program? Thank you!

[mgungorchamp]

https://github.com/mgungorchamp/InfoBoard

[HuaFangYun]

thanks