Xamarin Forms - Disable auto-lock when the app is open

Xamarin Forms - Disable auto-lock when the app is open

In Xamarin.Forms, you can control the screen lock behavior programmatically by using platform-specific code. Below are the steps to disable auto-lock when the app is open:

For Android:

  1. Create a custom renderer for the MainActivity in your Android project.

    using Android.App; using Android.OS; using Android.Views; [assembly: Xamarin.Forms.ExportRenderer(typeof(App), typeof(YourAppName.Droid.MainActivity))] namespace YourAppName.Droid { [Activity(Label = "Your App Name", Icon = "@mipmap/icon", Theme = "@style/MainTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)] public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity { protected override void OnCreate(Bundle savedInstanceState) { base.OnCreate(savedInstanceState); global::Xamarin.Forms.Forms.Init(this, savedInstanceState); LoadApplication(new App()); // Disable screen lock Window.AddFlags(WindowManagerFlags.KeepScreenOn); } } }

  2. Add the Window.AddFlags(WindowManagerFlags.KeepScreenOn); line inside the OnCreate method of your MainActivity class. This line tells the Android system to keep the screen on while your app is active.

For iOS:

  1. Create a custom renderer for the AppDelegate in your iOS project.

    using Foundation; using UIKit; [assembly: Xamarin.Forms.ExportRenderer(typeof(App), typeof(YourAppName.iOS.AppDelegate))] namespace YourAppName.iOS { [Register("AppDelegate")] public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate { public override bool FinishedLaunching(UIApplication app, NSDictionary options) { global::Xamarin.Forms.Forms.Init(); LoadApplication(new App()); // Disable screen lock UIApplication.SharedApplication.IdleTimerDisabled = true; return base.FinishedLaunching(app, options); } } }

  2. Add the UIApplication.SharedApplication.IdleTimerDisabled = true; line inside the FinishedLaunching method of your AppDelegate class. This line tells the iOS system to disable the auto-lock feature while your app is active.

With these platform-specific implementations, the screen lock will be disabled when your Xamarin.Forms app is open on both Android and iOS devices.

Examples

  1. "Xamarin Forms disable screen lock"

    • This query seeks information on how to prevent the screen from locking automatically when an app is open in Xamarin Forms.
    // In App.xaml.cs protected override void OnStart() { DeviceDisplay.KeepScreenOn = true; }

    This code snippet utilizes DeviceDisplay.KeepScreenOn to prevent the screen from locking when the app is in the foreground.

  2. "Xamarin Forms prevent device from locking"

    • Users might be interested in preventing the device from locking automatically while their Xamarin Forms app is active.
    // In App.xaml.cs protected override void OnStart() { DeviceDisplay.KeepScreenOn = true; }

    By setting DeviceDisplay.KeepScreenOn to true in the OnStart method, the device's screen will remain on while the app is active.

  3. "Xamarin Forms disable screen timeout"

    • This query is about disabling the screen timeout or auto-lock feature while using a Xamarin Forms app.
    // In App.xaml.cs protected override void OnStart() { DeviceDisplay.KeepScreenOn = true; }

    Setting DeviceDisplay.KeepScreenOn to true in the OnStart method ensures that the screen remains active while the app is in use.

  4. "Xamarin Forms prevent screen lock"

    • Users may want to prevent the screen from locking automatically while using their Xamarin Forms app.
    // In App.xaml.cs protected override void OnStart() { DeviceDisplay.KeepScreenOn = true; }

    This code snippet ensures that the screen remains active by setting DeviceDisplay.KeepScreenOn to true when the app starts.

  5. "Xamarin Forms keep screen on"

    • This query is about keeping the screen on or preventing it from locking automatically while using a Xamarin Forms app.
    // In App.xaml.cs protected override void OnStart() { DeviceDisplay.KeepScreenOn = true; }

    By setting DeviceDisplay.KeepScreenOn to true in the OnStart method, the screen will remain active while the app is in use.

  6. "Xamarin Forms disable device auto-lock"

    • Users might seek methods to disable the automatic screen locking feature on their device while using a Xamarin Forms app.
    // In App.xaml.cs protected override void OnStart() { DeviceDisplay.KeepScreenOn = true; }

    Setting DeviceDisplay.KeepScreenOn to true in the OnStart method ensures that the screen remains active while the app is in use.

  7. "Xamarin Forms prevent app from locking screen"

    • This query is specifically about preventing the screen from locking while a Xamarin Forms app is active.
    // In App.xaml.cs protected override void OnStart() { DeviceDisplay.KeepScreenOn = true; }

    By setting DeviceDisplay.KeepScreenOn to true in the OnStart method, the screen will stay active while the app is in use.

  8. "Xamarin Forms keep device awake"

    • Users may want to keep their device awake or prevent it from locking automatically while using a Xamarin Forms app.
    // In App.xaml.cs protected override void OnStart() { DeviceDisplay.KeepScreenOn = true; }

    This code snippet ensures that the screen remains active by setting DeviceDisplay.KeepScreenOn to true when the app starts.

  9. "Xamarin Forms disable auto-lock feature"

    • This query seeks ways to disable the auto-lock or screen locking feature while using a Xamarin Forms app.
    // In App.xaml.cs protected override void OnStart() { DeviceDisplay.KeepScreenOn = true; }

    By setting DeviceDisplay.KeepScreenOn to true in the OnStart method, the screen will not lock automatically while the app is active.

  10. "Xamarin Forms prevent screen from turning off"

    • Users might be interested in preventing the screen from turning off or locking automatically while using a Xamarin Forms app.
    // In App.xaml.cs protected override void OnStart() { DeviceDisplay.KeepScreenOn = true; }

    This code snippet ensures that the screen remains active by setting DeviceDisplay.KeepScreenOn to true when the app starts.

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