Add openSetting to Linking module

Libraries/Linking/Linking.js

@@ -71,6 +71,15 @@ class Linking extends NativeEventEmitter {
     return LinkingManager.canOpenURL(url);
   }
 
+  /**
+   * Open app settings.
+   *
+   * See https://facebook.github.io/react-native/docs/linking.html#opensettings
+   */
+  openSettings(): Promise<any> {
+    return LinkingManager.openSettings();
+  }
+
   /**
    * If the app launch was triggered by an app link,
    * it will give the link url, otherwise it will give `null`

Libraries/LinkingIOS/RCTLinkingManager.m

@@ -153,4 +153,26 @@ - (void)handleOpenURLNotification:(NSNotification *)notification
   resolve(RCTNullIfNil(initialURL.absoluteString));
 }
 
+RCT_EXPORT_METHOD(openSettings:(RCTPromiseResolveBlock)resolve
+                  reject:(__unused RCTPromiseRejectBlock)reject)
+{
+  NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
+  if (@available(iOS 10.0, *)) {
+    [RCTSharedApplication() openURL:url options:@{} completionHandler:^(BOOL success) {
+      if (success) {
+        resolve(nil);
+      } else {
+        reject(RCTErrorUnspecified, @"Unable to open app settings", nil);
+      }
+    }];
+  } else {
+   BOOL opened = [RCTSharedApplication() openURL:url];
+   if (opened) {
+     resolve(nil);
+   } else {
+     reject(RCTErrorUnspecified, @"Unable to open app settings", nil);
+   }
+  }
+}
+
 @end

ReactAndroid/src/main/java/com/facebook/react/modules/intent/IntentModule.java

@@ -12,6 +12,7 @@
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.net.Uri;
+import android.provider.Settings;
 
 import com.facebook.react.bridge.JSApplicationIllegalArgumentException;
 import com.facebook.react.bridge.Promise;
@@ -140,9 +141,36 @@ public void canOpenURL(String url, Promise promise) {
     }
   }
 
+  /**
+   * Starts an external activity to open app's settings into Android Settings
+   *
+   * @param promise a promise which is resolved when the Settings is opened
+   */
+  @ReactMethod
+  public void openSettings(Promise promise) {
+    try {
+      Intent intent = new Intent();
+      Activity currentActivity = getCurrentActivity();
+      String selfPackageName = getReactApplicationContext().getPackageName();
+
+      intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
+      intent.addCategory(Intent.CATEGORY_DEFAULT);
+      intent.setData(Uri.parse("package:" + selfPackageName));
+      intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+      intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
+      intent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
+      currentActivity.startActivity(intent);
+
+      promise.resolve(true);
+    } catch (Exception e) {
+      promise.reject(new JSApplicationIllegalArgumentException(
+          "Could not open the Settings: " + e.getMessage()));
+    }
+  }
+
   /**
    * Allows to send intents on Android
-   * 
+   *
    * For example, you can open the Notification Category screen for a specific application
    * passing action = 'android.settings.CHANNEL_NOTIFICATION_SETTINGS'
    * and extras = [
@@ -202,4 +230,4 @@ public void sendIntent(String action, @Nullable ReadableArray extras, Promise pr
 
     getReactApplicationContext().startActivity(intent);
   }
-}
+}