Im currently working on an application using Xamarin
android. I cannot get the device to vibrate
though.
Vibrator vibrator = (Vibrator)Activity.GetSystemService(Context.VibratorService);
vibrator.Vibrate(100);
It builds but crashes when I press the button that is linked to the code.
这就解决了AndroidManifest.xml的问题
<uses-permission android:name="android.permission.VIBRATE"/>
The Vibrate permission is required and must be configured in the Android project. This can be added in the following ways:
Open the AssemblyInfo.cs file under the Properties folder and add:
C#
[assembly: UsesPermission(Android.Manifest.Permission.Vibrate)]
OR
Update Android Manifest :
Open the AndroidManifest.xml file under the Properties folder and add the following inside of the manifest node.
XML
<uses-permission android:name="android.permission.VIBRATE" />
Or right click on the Android project and open the project's properties. Under Android Manifest find the Required permissions: area and check the VIBRATE permission. This will automatically update the AndroidManifest.xml file.
Add a reference to Xamarin.Essentials in your class:
using Xamarin.Essentials;
The Vibration functionality can be requested for a set amount of time or the default of 500 milliseconds.
try
{
// Use default vibration length
Vibration.Vibrate();
// Or use specified time
var duration = TimeSpan.FromSeconds(1);
Vibration.Vibrate(duration);
}
catch (FeatureNotSupportedException ex)
{
// Feature not supported on device
}
catch (Exception ex)
{
// Other error has occurred.
}
Cancellation of device vibration can be requested with the Cancel method:
try
{
Vibration.Cancel();
}
catch (FeatureNotSupportedException ex)
{
// Feature not supported on device
}
catch (Exception ex)
{
// Other error has occurred.
}
ref - https://docs.microsoft.com/en-us/xamarin/essentials/vibrate?tabs=android
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