ADD: User confirmation for use of all funds.

BlueComponents.js

@@ -790,14 +790,31 @@ export class BlueUseAllFundsButton extends Component {
               paddingBottom: 12,
             }}
           >
-            Total: {loc.formatBalanceWithoutSuffix(this.props.wallet.getBalance(), BitcoinUnit.BTC, true).toString()} {BitcoinUnit.BTC}
+            Total:
           </Text>
-          {this.props.wallet.allowSendMax() && this.props.wallet.getBalance() > 0 && (
+          {this.props.wallet.allowSendMax() ? (
             <BlueButtonLink
-              style={{ marginLeft: 8, paddingRight: 0, paddingLeft: 0, paddingTop: 12, paddingBottom: 12 }}
-              title="Use All"
               onPress={this.props.onUseAllPressed}
+              style={{ marginLeft: 8, paddingRight: 0, paddingLeft: 0, paddingTop: 12, paddingBottom: 12 }}
+              title={`${loc.formatBalanceWithoutSuffix(this.props.wallet.getBalance(), BitcoinUnit.BTC, true).toString()} ${
+                BitcoinUnit.BTC
+              }`}
             />
+          ) : (
+            <Text
+              style={{
+                color: BlueApp.settings.alternativeTextColor,
+                fontSize: 16,
+                marginLeft: 8,
+                marginRight: 0,
+                paddingRight: 0,
+                paddingLeft: 0,
+                paddingTop: 12,
+                paddingBottom: 12,
+              }}
+            >
+              {loc.formatBalanceWithoutSuffix(this.props.wallet.getBalance(), BitcoinUnit.BTC, true).toString()} {BitcoinUnit.BTC}
+            </Text>
           )}
         </View>
         <View style={{ flexDirection: 'row', justifyContent: 'flex-end', alignItems: 'flex-end' }}>

screen/send/details.js

@@ -4,6 +4,7 @@ import {
   ActivityIndicator,
   View,
   TextInput,
+  Alert,
   StatusBar,
   TouchableOpacity,
   KeyboardAvoidingView,
@@ -724,21 +725,48 @@ export default class SendDetails extends Component {
             ios: (
               <BlueUseAllFundsButton
                 onUseAllPressed={() => {
-                  this.setState({ amount: 'MAX' });
+                  ReactNativeHapticFeedback.trigger('notificationWarning');
+                  Alert.alert(
+                    'Use full balance',
+                    `Are you sure you want to use your wallet's full balance for this transaction?`,
+                    [
+                      {
+                        text: loc._.ok,
+                        onPress: async () => {
+                          this.setState({ amount: 'MAX' });
+                        },
+                        style: 'default',
+                      },
+                      { text: loc.send.details.cancel, onPress: () => {}, style: 'cancel' },
+                    ],
+                    { cancelable: false },
+                  );
                   Keyboard.dismiss();
                 }}
                 wallet={this.state.fromWallet}
-                visi
               />
             ),
             android: this.state.isAmountToolbarVisibleForAndroid && (
               <BlueUseAllFundsButton
                 onUseAllPressed={() => {
-                  this.setState({ amount: 'MAX' });
+                  Alert.alert(
+                    'Use all funds',
+                    `Are you sure you want to use your all of your wallet's funds for this transaction?`,
+                    [
+                      {
+                        text: loc._.ok,
+                        onPress: async () => {
+                          this.setState({ amount: 'MAX' });
+                        },
+                        style: 'default',
+                      },
+                      { text: loc.send.details.cancel, onPress: () => {}, style: 'cancel' },
+                    ],
+                    { cancelable: false },
+                  );
                   Keyboard.dismiss();
                 }}
                 wallet={this.state.fromWallet}
-                visi
               />
             ),
           })}