[crashlytics] Add first version of crashlytics functionality

android/build.gradle

@@ -2,9 +2,13 @@ buildscript {
   ext.firebaseVersion = '11.4.2'
   repositories {
     jcenter()
+    maven {
+      url 'https://maven.fabric.io/public'
+    }
   }
   dependencies {
     classpath 'com.android.tools.build:gradle:2.3.3'
+    classpath 'io.fabric.tools:gradle:1.24.4'
   }
 }
 
@@ -91,4 +95,7 @@ dependencies {
   compile "com.google.firebase:firebase-ads:$firebaseVersion"
   compile "com.google.firebase:firebase-firestore:$firebaseVersion"
   compile "com.google.firebase:firebase-invites:$firebaseVersion"
+  compile('com.crashlytics.sdk.android:crashlytics:2.7.1@aar') {
+    transitive = true
+  }
 }

android/src/main/java/io/invertase/firebase/fabric/crashlytics/RNFirebaseCrashlytics.java

@@ -0,0 +1,65 @@
+package io.invertase.firebase.fabric.crashlytics;
+
+import android.util.Log;
+
+import com.facebook.react.bridge.ReactMethod;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContextBaseJavaModule;
+
+import com.crashlytics.android.Crashlytics;
+
+
+public class RNFirebaseCrashlytics extends ReactContextBaseJavaModule {
+
+  private static final String TAG = "RNFirebaseCrashlytics";
+
+  public RNFirebaseCrashlytics(ReactApplicationContext reactContext) {
+    super(reactContext);
+    Log.d(TAG, "New instance");
+  }
+
+  @Override
+  public String getName() {
+    return TAG;
+  }
+
+  @ReactMethod
+  public void crash() {
+    Crashlytics.getInstance().crash();
+  }
+
+  @ReactMethod
+  public void log(final String message) {
+    Crashlytics.log(message);
+  }
+
+  @ReactMethod
+  public void recordError(final int code, final String domain) {
+    Crashlytics.logException(new Exception(code + ": " + domain));
+  }
+
+  @ReactMethod
+  public void setBoolValue(final String key, final boolean boolValue) {
+    Crashlytics.setBool(key, boolValue);
+  }
+
+  @ReactMethod
+  public void setFloatValue(final String key, final float floatValue) {
+    Crashlytics.setFloat(key, floatValue);
+  }
+
+  @ReactMethod
+  public void setIntValue(final String key, final int intValue) {
+    Crashlytics.setInt(key, intValue);
+  }
+
+  @ReactMethod
+  public void setStringValue(final String key, final String stringValue) {
+    Crashlytics.setString(key, stringValue);
+  }
+
+  @ReactMethod
+  public void setUserIdentifier(String userId) {
+    Crashlytics.setUserIdentifier(userId);
+  }
+}

android/src/main/java/io/invertase/firebase/fabric/crashlytics/RNFirebaseCrashlyticsPackage.java

@@ -0,0 +1,39 @@
+package io.invertase.firebase.fabric.crashlytics;
+
+import com.facebook.react.ReactPackage;
+import com.facebook.react.bridge.JavaScriptModule;
+import com.facebook.react.bridge.NativeModule;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.uimanager.UIManagerModule;
+import com.facebook.react.uimanager.ViewManager;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+@SuppressWarnings("unused")
+public class RNFirebaseCrashlyticsPackage implements ReactPackage {
+  public RNFirebaseCrashlyticsPackage() {
+  }
+
+  /**
+   * @param reactContext react application context that can be used to create modules
+   * @return list of native modules to register with the newly created catalyst instance
+   */
+  @Override
+  public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
+    List<NativeModule> modules = new ArrayList<>();
+    modules.add(new RNFirebaseCrashlytics(reactContext));
+
+    return modules;
+  }
+
+  /**
+   * @param reactContext
+   * @return a list of view managers that should be registered with {@link UIManagerModule}
+   */
+  @Override
+  public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
+    return Collections.emptyList();
+  }
+}