Initial commit

This is not completed functionality.

src/Backhandler.tsx

@@ -0,0 +1,39 @@
+import { Component, ReactNode, createElement } from "react";
+import { TextStyle, ViewStyle, BackHandler, View } from "react-native";
+
+import { Style } from "@mendix/pluggable-widgets-tools";
+
+import { BackhandlerProps } from "../typings/BackhandlerProps";
+
+export interface CustomStyle extends Style {
+    container: ViewStyle;
+    label: TextStyle;
+}
+
+export class Backhandler extends Component<BackhandlerProps<CustomStyle>> {
+    constructor(props: BackhandlerProps<CustomStyle>){
+        super(props)
+        this.handleBackButtonClick = this.handleBackButtonClick.bind(this);
+    }
+
+    render(): ReactNode {
+        return (
+        <View></View>
+        )
+    }
+
+    componentWillMount() {
+        if (this.props.disableBack) {
+            BackHandler.addEventListener('hardwareBackPress', this.handleBackButtonClick);
+        }  
+    }
+    
+    componentWillUnmount() {
+        BackHandler.removeEventListener('hardwareBackPress', this.handleBackButtonClick);
+    }
+    
+    handleBackButtonClick() {
+        return true;
+    }
+}
+