Devices that run Android's API 29 (Q)+ require a new way of changing the cursor color. Android devices now use one line of code instead of using the 3 lines of code found in the custom renderer class here: https://www.syncfusion.com/kb/11608/how-to-change-the-cursor-color-in-xamarin-forms-text-input-layout?_gl=1*1rqhr1j*_ga*MTkxOTIwNzE5NC4xNjU5MzkwMzk2*_ga_WC4JKKPHH0*MTY3MDA3MjQzMC4xMTIuMS4xNjcwMDcyNzYxLjAuMC4w&_ga=2.97185814.8011882.1669640507-1919207194.1659390396
If you try to run the code above on android devices using API 29 (Q)+ the application will crash when loading the page that uses the custom renderer. This is the new way to change cursor color's for android devices:
public class MyEditorRenderer : EditorRenderer
{
public MyEditorRenderer(Context context) : base(context)
{
}
protected override void OnElementChanged(ElementChangedEventArgs<Editor> e)
{
base.OnElementChanged(e);
if (Build.VERSION.SdkInt >= BuildVersionCodes.Q)
{
Control.SetTextCursorDrawable(Resource.Drawable.my_cursor); //This API Intrduced in android 10
}
else
{
IntPtr IntPtrtextViewClass = JNIEnv.FindClass(typeof(TextView));
IntPtr mCursorDrawableResProperty = JNIEnv.GetFieldID(IntPtrtextViewClass, "mCursorDrawableRes", "I");
JNIEnv.SetField(Control.Handle, mCursorDrawableResProperty, Resource.Drawable.my_cursor);
}
}
}
To my knowledge, Syncfusion's custom controls (ex// SfAutoComplete, SfComboBox, etc.) don't yet support this "SetTextCursorDrawable" method. The iOS version still works perfectly fine for Syncfusion's custom controls but until this "SetTextCursorDrawable" method exists for SfAutoCompleteRenderer and SfComboBoxRenderer, I won't be able to change the cursor colors for Syncfusion's custom controls in my android application.
Thanks,
Bryson
Hi Bryson,
Thanks for contacting Syncfusion support.
Query: I won't be able to change the cursor colors for Syncfusion's custom controls (SfAutoComplete, SfComboBox) in my android application.
SfAutoComplete and SfComboBox support the SetTextCursorDrawable method by using the GetAutoEditText method in the renderer class. We have prepared a sample for your reference, please get the sample from the attachment.
Please let us know if you have any further queries.
Thanks,
Vijayakumar V
