update readme

Author: biodunalfet

README.md

@@ -28,7 +28,7 @@ The minimum supported SDK version is 15
 **Step 2.** Add the dependency
 
     dependencies {
-	     compile 'com.github.Flutterwave:rave-android:1.0.28'
+	     implementation 'com.github.Flutterwave:rave-android:1.0.31'
 	}
 
 **Step 3.** Add the required permission
@@ -55,7 +55,7 @@ Set the public key, private key and other required parameters. The `RavePayManag
                         .setlName(lName)
                         .setNarration(narration)
                         .setPublicKey(publicKey)
-                        .setSecretKey(secretKey)
+                        .setEncryptionKey(encryptionKey)
                         .setTxRef(txRef)
                         .acceptAccountPayments(boolean)
                         .acceptCardPayments(boolean)
@@ -65,8 +65,8 @@ Set the public key, private key and other required parameters. The `RavePayManag
                         .allowSaveCardFeature(boolean)
                         .setMeta(List<Meta>)
                         .withTheme(styleId)
+                        .isPreAuth(boolean)
                         .setSubAccounts(List<SubAccount>)
-                        .setIsPreAuth(boolean)
                         .initialize();
 
 | function        | parameter           | type | required  |
@@ -78,25 +78,21 @@ Set the public key, private key and other required parameters. The `RavePayManag
 | setlName(lName) | This is the last name of the card holder or the customer | `String` | Required
 | setEmail(email) | This is the email address of the customer | `String` | Required
 | setNarration(narration) | This is a custom description added by the merchant | `String` | Not Required
-| setPublicKey(publicKey) | Merchant's public key | `String` | Required
-| setSecretKey(secretKey) | Merchant's secret key | `String` | Required
+| setPublicKey(publicKey) | Merchant's public key. | `String` | Required
+| setEncryptionKey(encryptionKey) | Merchant's encryption key | `String` | Required
 | setTxRef(txRef) | This is the unique reference, unique to the particular transaction being carried out. It is generated by the merchant for every transaction | `String` | Required
 | acceptAccountPayments(boolean) | Set to `true` if you want to accept payments via cards, else set to `false`. | `boolean` | Not Required
 | acceptCardPayments(boolean) | Set to `true` if you want to accept payments via bank accounts, else set to `false` | `boolean` | Not Required |
 | acceptMpesaPayments(boolean) | Set to `true` if you want to accept Mpesa payments, else set to `false` . For this option to work, you should set your country to `KE` and your currency to `KES` | `boolean` | Not Required |
 | acceptGHMobileMoneyPayments(boolean) | Set to `true` if you want to accept Ghana mobile money payments, else set to `false` . For this option to work, you should set your country to `GH` and your currency to `GHS`| `boolean` | Not Required |
 | onStagingEnv(boolean) | Set to `true` if you want your transactions to run in the staging environment otherwise set to `false`. Defaults to false  | `boolean` | Not Required
-| allowSaveCardFeature(boolean) | Set to `true` if you want your users to be able to save their cards for later reuse otherwise set to `false` | `boolean` | Required
 | setMeta(`List<Meta>`) | Pass in any other custom data you wish to pass. It takes in a `List` of `Meta` objects | List<Meta> | Not Required
-|setSubAccounts(`List<SubAccount>`) | Pass in a `List` of `SubAccount`,if you want to split transaction fee with other people. Subaccounts are your vendors' accounts that you want to settle per transaction. To initialize a `SubAccout` class, do `SubAccount(String subAccountId,String transactionSplitRatio)` or `SubAccount(String subAccountId,String transactionSplitRatio,String transactionChargeType, String transactionCharge)` to also charge the subaccount a fee. [Learn more about split payments and subaccounts](https://developer.flutterwave.com/docs/split-payment).| `List<SubAccount>`| Not Required
+| setSubAccounts(`List<SubAccount>`) | Pass in a `List` of `SubAccount`,if you want to split transaction fee with other people. Subaccounts are your vendors' accounts that you want to settle per transaction. To initialize a `SubAccout` class, do `SubAccount(String subAccountId,String transactionSplitRatio)` or `SubAccount(String subAccountId,String transactionSplitRatio,String transactionChargeType, String transactionCharge)` to also charge the subaccount a fee. [Learn more about split payments and subaccounts](https://developer.flutterwave.com/docs/split-payment).| `List<SubAccount>`| Not Required
 | setIsPreAuth(boolean) | Set to `true` to preauthorise the transaction amount. [Learn more about preauthourization](https://developer.flutterwave.com/v2.0/reference#introduction-1). | `int` | Not Required
-| withTheme(styleId) | Sets the theme of the UI. | `boolean` | Not Required
+| withTheme(styleId) | Sets the theme of the UI. | `int` | Not Required
 | setPaymentPlan(payment_plan) | If you want to do recurrent payment, this is the payment plan ID to use for the recurring payment, you can see how to create payment plans [here](https://flutterwavedevelopers.readme.io/v2.0/reference#create-payment-plan) and [here](https://flutterwavedevelopers.readme.io/docs/recurring-billing). This is only available for card payments | `String` | Not Required
 | initialize() | Launch the Rave Payment UI  |  N/A | Required
 
-> **SECURITY ALERT**
-> You should never store your **SECRET KEY** on the user's device
-
 ###  2. Handle the response
 In the calling activity, override the `onActivityResult` method to receive the payment response as shown below
 
@@ -139,7 +135,6 @@ You can apply a new look by changing the color of certain parts of the UI to hig
 To configure Proguard, add the following lines to your proguard configuration file. These will keep files related to this sdk
 ```
 keepclasseswithmembers public class com.flutterwave.raveandroid.** { *; }
-
 dontwarn com.flutterwave.raveandroid.card.CardFragment
 ```