[MOB-8388] Start SDK from Dart only (#223)

* Start SDK from Dart only

* Update Changelog

* Update README

* Update `Instabug.start` unit test

Author: TheBuggedYRN

CHANGELOG.md

@@ -1,3 +1,7 @@
+## master
+
+* Supports starting SDK from Dart only.
+
 ## v10.13.0 (2022-03-31)
 
 * Adds support for uploading debug symbols on Android to be used for crash deobfuscation

README.md

@@ -62,23 +62,26 @@ allprojects {
 ```
 
 
-2. Create a new Java class that extends `FlutterApplication` and add it to your `AndroidManifest.xml`.
+2. **⚠️ For Instabug versions <= v10.11.0 only.**  
+   Initialize the android SDK: 
 
-```xml
-<application
-    android:name=".CustomFlutterApplication"
-    ...
-</application>
-````
+	1. Create a new Java class that extends `FlutterApplication` and add it to your `AndroidManifest.xml`.
 
-3. In your newly created `CustomFlutterApplication` class, override `onCreate()` and add the following code.
+		```xml
+		<application
+			android:name=".CustomFlutterApplication"
+			...
+		</application>
+		````
 
+	1. In your newly created `CustomFlutterApplication` class, override `onCreate()` and add the following code.
 
-```java
-ArrayList<String> invocationEvents = new ArrayList<>();
-invocationEvents.add(InstabugFlutterPlugin.INVOCATION_EVENT_SHAKE);
-new InstabugFlutterPlugin().start(CustomFlutterApplication.this, "APP_TOKEN", invocationEvents);
-```
+
+		```java
+		ArrayList<String> invocationEvents = new ArrayList<>();
+		invocationEvents.add(InstabugFlutterPlugin.INVOCATION_EVENT_SHAKE);
+		new InstabugFlutterPlugin().start(CustomFlutterApplication.this, "APP_TOKEN", invocationEvents);
+		```
 
 ## Crash reporting
 

android/src/main/java/com/instabug/instabugflutter/InstabugFlutterPlugin.java

@@ -1,6 +1,7 @@
 package com.instabug.instabugflutter;
 
 import android.app.Application;
+import android.content.Context;
 import android.graphics.Bitmap;
 import android.net.Uri;
 import android.os.Handler;
@@ -72,26 +73,28 @@ public class InstabugFlutterPlugin implements MethodCallHandler, FlutterPlugin {
     private InstabugCustomTextPlaceHolder placeHolder = new InstabugCustomTextPlaceHolder();
     HashMap<String, ExecutionTrace> traces = new HashMap<String, ExecutionTrace>();
 
+    private static Context context;
     static MethodChannel channel;
 
     /**
      * Plugin registration.
      */
     public static void registerWith(Registrar registrar) {
-        register(registrar.messenger());
+        register(registrar.context().getApplicationContext(), registrar.messenger());
     }
 
     @Override
     public void onAttachedToEngine(@NonNull FlutterPluginBinding binding) {
-        register(binding.getBinaryMessenger());
+        register(binding.getApplicationContext(), binding.getBinaryMessenger());
     }
 
     @Override
     public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
-
+        context = null;
     }
 
-    private static void register(BinaryMessenger messenger){
+    private static void register(Context applicationContext, BinaryMessenger messenger){
+        context = applicationContext;
         channel = new MethodChannel(messenger, "instabug_flutter");
         channel.setMethodCallHandler(new InstabugFlutterPlugin());
     }
@@ -144,21 +147,24 @@ private void setCurrentPlatform() {
     /**
      * starts the SDK
      *
-     * @param application      the application Object
      * @param token            token The token that identifies the app, you can find
      *                         it on your dashboard.
      * @param invocationEvents invocationEvents The events that invoke the SDK's UI.
      */
-    public void start(Application application, String token, ArrayList<String> invocationEvents) {
+    public void startWithToken(String token, ArrayList<String> invocationEvents) {
         setCurrentPlatform();
         InstabugInvocationEvent[] invocationEventsArray = new InstabugInvocationEvent[invocationEvents.size()];
         for (int i = 0; i < invocationEvents.size(); i++) {
             String key = invocationEvents.get(i);
             invocationEventsArray[i] = ArgsRegistry.getDeserializedValue(key, InstabugInvocationEvent.class);
         }
-        new Instabug.Builder(application, token).setInvocationEvents(invocationEventsArray).build();
-        enableScreenShotByMediaProjection();
 
+        final Application application = (Application) context;
+        new Instabug.Builder(application, token)
+                .setInvocationEvents(invocationEventsArray)
+                .build();
+
+        enableScreenShotByMediaProjection();
     }
 
     /**

example/android/app/src/main/AndroidManifest.xml

@@ -13,7 +13,6 @@
          additional functionality it is fine to subclass or reimplement
          FlutterApplication and put your custom class here. -->
     <application
-        android:name=".CustomFlutterApplication"
         android:label="InstabugSample"
         android:icon="@mipmap/ic_launcher">
         <activity

example/android/app/src/main/kotlin/com/example/InstabugSample/CustomFlutterApplication.java

@@ -102,13 +102,10 @@ class Instabug {
   /// the SDK's UI.
   static Future<void> start(
       String token, List<InvocationEvent> invocationEvents) async {
-    if (PlatformManager.instance.isIOS()) {
-      final List<String> invocationEventsStrings =
-          invocationEvents.map((e) => e.toString()).toList(growable: false);
-      final List<dynamic> params = <dynamic>[token, invocationEventsStrings];
-      await _channel.invokeMethod<Object>(
-          'startWithToken:invocationEvents:', params);
-    }
+    final List<String> invocationEventsStrings =
+        invocationEvents.map((e) => e.toString()).toList(growable: false);
+    final List<dynamic> params = <dynamic>[token, invocationEventsStrings];
+    await _channel.invokeMethod<Object>('startWithToken:invocationEvents:', params);
   }
 
   /// Shows the welcome message in a specific mode.

lib/Instabug.dart

@@ -102,9 +102,7 @@ void main() {
     log.clear();
   });
 
-  test('startWithToken:invocationEvents: should be called on iOS', () async {
-    when(mockPlatform.isIOS()).thenAnswer((_) => true);
-
+  test('startWithToken:invocationEvents: should be called', () async {
     await Instabug.start(appToken, invocationEvents);
     final List<dynamic> args = <dynamic>[
       appToken,