Create migration guide.

docs/README-1.0.md

@@ -37,6 +37,10 @@ To enable `video recording` feature you have to add the following code to the `A
 
 ![5j2jduk](https://cloud.githubusercontent.com/assets/2302315/22190752/6bc6ccd0-e0da-11e6-8e2f-6f22a3567a57.gif)
 
+## Migrating from RCTCamera to RNCamera
+
+See this [doc](https://github.com/react-native-community/react-native-camera/blob/master/docs/migration.md).
+
 ## Getting started
 
 ### Requirements
@@ -142,7 +146,12 @@ Google Symbol Utilities: https://www.gstatic.com/cpdc/dbffca986f6337f8-GoogleSym
 4. Insert the following lines inside the dependencies block in `android/app/build.gradle`:
 
 	```gradle
-    compile project(':react-native-camera')
+        compile (project(':react-native-camera')) {
+        exclude group: "com.google.android.gms"
+    }
+        compile ("com.google.android.gms:play-services-vision:10.2.0") {
+        force = true;
+    }
 	```
 5. Declare the permissions in your Android Manifest (required for `video recording` feature)
 
@@ -161,6 +170,8 @@ allprojects {
 }
 ```
 
+Follow the Q & A section if you are having compilation issues.
+
 ## Usage
 
 ### RNCamera

docs/migration.md

@@ -0,0 +1,124 @@
+# Migrating from RCTCamera to RNCamera
+
+## Compiling
+
+Please follow the [RNCamera doc](https://github.com/react-native-community/react-native-camera/blob/master/docs/RNCamera.md) instalation guide to install the face detection frameworks on both platforms.
+
+
+### Android
+
+On `android/app/build.gradle`, change the line: `compile (project(':react-native-camera'))` to:
+  ```gradle
+        compile (project(':react-native-camera')) {
+        exclude group: "com.google.android.gms"
+    }
+        compile ("com.google.android.gms:play-services-vision:10.2.0") {
+        force = true;
+    }
+  ```
+
+Add jitpack to android/build.gradle
+```gradle
+allprojects {
+    repositories {
+        maven { url "https://jitpack.io" }
+    }
+}```
+
+## Usage differences
+
+### imports
+
+Instead of importing `Camera`, now, you should import `{ RNCamera }` from `react-native-camera`.
+
+### No `captureMode` prop
+
+On RCTCamera, you would set the camera `captureMode` to `still` or `video` and you could only record or take a picture depending on the `captureMode` of your `Camera`.
+
+On RNCamera you do not need to specify `captureMode`. The RNCameara, in any state, can record or take a picture calling the appropriate method.
+
+### `capture` to `takePictureAsync` or `recordAsync`
+
+Let's say you have a component with a RCTCamera taking a photo:
+```
+import Camera from 'react-native-camera';
+class TakePicture extends Component {
+takePicture = async () => {
+    try {
+      const data = await this.camera.capture();
+      console.log('Path to image: ' + data.path);
+    } catch (err) {
+      // console.log('err: ', err);
+    }
+  };
+render() {
+    return (
+      <View style={styles.container}>
+        <Camera
+          ref={cam => {
+            this.camera = cam;
+          }}
+          style={styles.preview}
+          aspect={Camera.constants.Aspect.fill}
+          captureAudio={false}
+        >
+          <View style={styles.captureContainer}>
+            <TouchableOpacity style={styles.capture} onPress={this.takePicture}>
+              <Icon style={styles.iconCamera}>camera</Icon>
+              <Text>Take Photo</Text>
+            </TouchableOpacity>
+          </View>
+        </Camera>
+
+        <View style={styles.space} />
+      </View>
+    );
+  }
+}
+```
+
+You should change this to:
+```
+import { RNCamera } from 'react-native-camera';
+class TakePicture extends Component {
+takePicture = async () => {
+    try {
+      const data = await this.camera.takePictureAsync();
+      console.log('Path to image: ' + data.uri);
+    } catch (err) {
+      // console.log('err: ', err);
+    }
+  };
+render() {
+    return (
+      <View style={styles.container}>
+        <RNCamera
+          ref={cam => {
+            this.camera = cam;
+          }}
+          style={styles.preview}
+        >
+          <View style={styles.captureContainer}>
+            <TouchableOpacity style={styles.capture} onPress={this.takePicture}>
+              <Icon style={styles.iconCamera}>camera</Icon>
+              <Text>Take Photo</Text>
+            </TouchableOpacity>
+          </View>
+        </RNCamera>
+
+        <View style={styles.space} />
+      </View>
+    );
+  }
+}
+```
+
+The same logic applies to change `capture` to `recordAsync`.
+
+### `flashMode` and `torchMode`
+
+In RCTCamera, there was `flashMode` and `torchMode` prop. In RNCamera, these are combined into the `flashMode` prop.
+
+### Other differences
+
+Take a look into the [RCTCamera doc](https://github.com/react-native-community/react-native-camera/blob/master/docs/RCTCamera.md) and the [RNCamera doc](https://github.com/react-native-community/react-native-camera/blob/master/docs/RNCamera.md) to see more differences.