Updated onBarCodeRead in App.js to properly format and set a scanned …

…transaction.

Added a condition to SendTransaction's componentDidMount to check for a pre-set/requested transaction amount.

src/components/App.js

@@ -1547,8 +1547,14 @@ export default class App extends Component {
 					await this.restartElectrum({coin});
 				}
 
-				//Pass the transaction data forward for use.
-				this.props.updateTransaction(qrCodeData.data);
+				//Pass the transaction data forward for use in the SendTransaction component.
+				let { address, amount } = qrCodeData.data;
+				//Ensure the amount is correctly formatted in sats
+				if (amount % 1 !== 0) amount = bitcoinUnits(Number(qrCodeData.data.amount), "BTC").to("satoshi").value();
+				//Set amount to 0 if the requested amount is greater than the current balance.
+				if (amount > this.getCryptoBalance()) amount = 0;
+				this.props.updateTransaction({ address, amount });
+
 				//Trigger the onSendPress animation to expose the transaction view.
 				this.onSendPress();
 			});

src/components/SendTransaction.js

@@ -105,6 +105,17 @@ class SendTransaction extends Component {
 			//Set Maximum Fee (recommendedFee * 4) to prevent any user accidents.
 			//Set Recommended Fee as Starting Fee
 			this.calculateFees();
+
+			try {
+				//If a transaction amount is already specified check that the user has enough funds and update the local amount accordingly.
+				if (this.props.transaction.amount) {
+					if (this.hasEnoughFunds()) {
+						this.updateAmount(this.props.transaction.amount);
+					} else {
+						alert(`It appears that\nyou do not have enough funds\nto cover the requested transaction.`);
+					}
+				}
+			} catch (e) {}
 		};
 
 		if (Platform.OS === "ios") {