Cursor focus set after selecting new currency to enter amount

src/pages/iou/steps/IOUAmountPage.js

@@ -76,14 +76,28 @@ class IOUAmountPage extends React.Component {
         this.updateAmountNumberPad = this.updateAmountNumberPad.bind(this);
         this.updateAmount = this.updateAmount.bind(this);
         this.stripCommaFromAmount = this.stripCommaFromAmount.bind(this);
+        this.focusTextInput = this.focusTextInput.bind(this);
 
         this.state = {
             amount: props.selectedAmount,
         };
     }
 
     componentDidMount() {
-        // Component is not initialized yet due to navigation transitions
+        this.focusTextInput();
+    }
+
+    componentDidUpdate(prevProps) {
+        if (this.props.iou.selectedCurrencyCode !== prevProps.iou.selectedCurrencyCode) {
+            this.focusTextInput();
+        }
+    }
+
+    /**
+     * Focus text input
+     */
+    focusTextInput() {
+        // Component may not initialized due to navigation transitions
         // Wait until interactions are complete before trying to focus
         InteractionManager.runAfterInteractions(() => {
             // Focus text input