From e55c0ef1f8148c1e9a7ccabc0b44691349462a8c Mon Sep 17 00:00:00 2001
From: Dmitry Novotochinov <dmitry.novot@gmail.com>
Date: Thu, 2 May 2019 22:25:25 +0300
Subject: [PATCH] update docs

---
 README.md     |  7 +++++--
 docs/usage.md | 31 ++++++++++++++++++++-----------
 2 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index c5aa401..c3d8165 100644
--- a/README.md
+++ b/README.md
@@ -18,8 +18,8 @@ Android is the only platform supported by now.
 
 #### Android
 
-1. Open up `android/app/src/main/java/[...]/MainActivity.java`
-  - Add `import com.reactlibrary.RNStatusKeycardPackage;` to the imports at the top of the file
+1. Open up `android/app/src/main/java/[...]/MainApplication.java`
+  - Add `import im.status.ethereum.keycard.RNStatusKeycardPackage;` to the imports at the top of the file
   - Add `new RNStatusKeycardPackage()` to the list returned by the `getPackages()` method
 2. Append the following lines to `android/settings.gradle`:
   	```
@@ -30,6 +30,9 @@ Android is the only platform supported by now.
   	```
       compile project(':react-native-status-keycard')
   	```
+4. Add `<uses-permission android:name="android.permission.NFC"/>` to `android/app/src/main/AndroidManifest.xml` to enable NFC permission.
+
+5. Make sure `minSdkVersion` is 18 in `android/build.gradle`.
 
 ## Usage
 
diff --git a/docs/usage.md b/docs/usage.md
index 60bdf06..6767350 100644
--- a/docs/usage.md
+++ b/docs/usage.md
@@ -3,28 +3,28 @@
 You need to import Keycard object to interact with the card:
 
 ```javascript
-import { RNStatusKeycard as Keycard} from "react-native-status-keycard";
+import Keycard from "react-native-status-keycard";
 ```
 
 ### Listen to keycard connect/disconnect events
 
 ```javascript
-import DeviceEventEmitter from "react-native";
+import { DeviceEventEmitter } from 'react-native';
 
 // Listen to connect/disconnect events
-DeviceEventEmitter.addListener("keyCardOnConnected", () => console.log("keycard connected"));
-DeviceEventEmitter.addListener("keyCardOnDisconnected", () => console.log("keycard disconnected"));
+componentDidMount () {
+  DeviceEventEmitter.addListener("keyCardOnConnected", () => console.log("keycard connected"));
+  DeviceEventEmitter.addListener("keyCardOnDisconnected", () => console.log("keycard disconnected"));
+}
 ```
 
 ### Errors
 
-As library uses Promises for method calls, use `.catch` to get the error object.
+Library uses Promises for method calls, use `.catch` to get the error object.
 
 Example:
 ```javascript
-Keycard.getApplicationInfo().
-then(info => console.log(info)).
-catch(error => console.log(error))
+Keycard.init("123456").then(info => console.log(info)).catch(error => console.log(error))
 ```
 
 Error object example:
@@ -47,7 +47,13 @@ Keycard.openNfcSettings();
 
 ### Get keycard information
 ```javascript
-Keycard.getApplicationInfo().then(info => console.log(info));
+// If keycard was not paired before, use empty string as pairing
+Keycard.getApplicationInfo("").then(info => console.log(info));
+
+// If keycard is paired, use pairing key
+const pairing = "AFFdkP01GywuaJRQkGDq+OyPHBE9nECEDDCfXhpfaxlo";
+Keycard.getApplicationInfo(pairing).then(info => console.log(info));
+
 ```
 
 Returns object like this:
@@ -77,9 +83,12 @@ Keycard.init(pin).then(secrets => console.log(secrets));
 ```
 
 ### Pair 
-Pairs keycard to device:
+Pairs keycard to device.
+
+Use password you get after keycard initialization (using `init`):
+
 ```javascript
-const password = "/xzPt+rEWVN3sMc5"
+const password = "/xzPt+rEWVN3sMc5";
 Keycard.pair(password).then(pairing => console.log(pairing));
 ```