Android 显示QML组合框内容时出错

我正在制作一个QML应用程序。我正在使用此代码填充QML组合框

DelegateChoice {
    roleValue: "AUTOCOMPLETADO"
    ComboBox {
        Layout.row: index
        Layout.column: 1
        Layout.fillWidth: true
        Layout.fillHeight: true
        //textRole: datoValor
        model: ListModel {
            Component.onCompleted: {
                    for ( var k=0; k<5; ++k )
                        this.append({ text: "valor " + k } );
                    }
            }
        }
        editable: true
        //placeholderText: nombreCampo
        onCurrentIndexChanged: {
            r2.model.get( index ).datoValor = this.text;
        }

    }
}

---

如何修复它？

什么是

r2

？请提供。r2是来自代理选择器的模型

W IInputConnectionWrapper: beginBatchEdit on inactive InputConnection
W IInputConnectionWrapper: getTextBeforeCursor on inactive InputConnection
W IInputConnectionWrapper: getTextAfterCursor on inactive InputConnection
W IInputConnectionWrapper: getSelectedText on inactive InputConnection
W IInputConnectionWrapper: endBatchEdit on inactive InputConnection
W IInputConnectionWrapper: beginBatchEdit on inactive InputConnection
W IInputConnectionWrapper: getTextBeforeCursor on inactive InputConnection
W IInputConnectionWrapper: getTextAfterCursor on inactive InputConnection
W IInputConnectionWrapper: getSelectedText on inactive InputConnection
W IInputConnectionWrapper: endBatchEdit on inactive InputConnection