android input cursor control

[yehun]

Bug Description

As shown in the figure, I have two questions:

• The cursor display position of TextEdit in material is incorrect
• How to make this cursor not display in Android

Reproducible Code (if applicable)

import { LineEdit } from "std-widgets.slint";
import { TextField } from "@material";

export component Demo {
    
    VerticalLayout {

        HorizontalLayout {
            height: 48px;
            LineEdit {
                height: parent.height;
                placeholder-text: "std-widgets -> LineEdit";
            }
        }

        HorizontalLayout {
            height: 48px;
            TextField {
                label: "Material -> TextField";
                height: parent.height;
            }
        }
    }
}

Environment Details

• Slint Version: 1.15.0
• Platform/OS: Debian 13
• Programming Language: Rust
• Backend/Renderer: backend-android-activity-06

Product Impact

No response

[ogoffart]

Thanks for reporting the issue.

It appears that the material components use a PopupWindow behind the scene to hold the TextInput.

And that the position of the anchors is relative to the PopupWindow:
The call to map_to_window in

slint/internal/core/items/text.rs

Line 1719 in 72aa989

let origin = self_rc.map_to_window(geometry.origin);

return an absolute position relative to the popup window, but we don't account for that in the android code in

slint/internal/backends/android-activity/javahelper.rs

Line 161 in 72aa989

pub fn set_imm_data(

It can be reproduced with this testcase: (Anchors within the popup are wrongly placed)

import { LineEdit, Button } from "std-widgets.slint";

export component MainWindow inherits Window {
    VerticalLayout {
        padding: 20px;
        alignment: space-between;
        LineEdit {}
        LineEdit {}
        Button {
            text: "Show popup";
            clicked => { popup.show(); }
        }
        LineEdit {}
    }

    popup := PopupWindow {
        x: 30px;
        y: parent.height / 4;
        Rectangle {
            background: lightgray;
            border-width: 1px;
            border-color: black;
        }
        VerticalLayout {
            LineEdit {}
            LineEdit {}

        }
        close-policy: close-on-click-outside;
    }
}