react native on andriod shows white page

I am trying to run react native application and building and running an Andriod application from my mac to a real android device.

The problem is it shows white page only.

This is what I am doing.

react-native init AwesomeProject react-native run-android --port 1234 

Every time I reload the app, I can see API calls being received in the console.

 DELTA  [android, dev] ../../index.js ░░░░░░░░░░░░░░░░ 0.0% (0/1)::ffff: - - [05/Mar/2019:19:17:13 +0000] "GET / HTTP/1.1" 200 72 "-" "okhttp/3.12.1"  DELTA  [android, dev] ../../index.js ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓ 100.0% (1/1), done. 

However, Nothing gets displayed on my android phone but a white page.

Clone the Andriod version from Samsung to Lenovo?

I bought this Lenovo K10a40, and I bought just problems. This will be a number 2 phone if I can get it work in a reliable state.

I have been looking a little around and if I could downgrade it to clone of the Android 4.2.2 on an old simple Samsung GT-S7580 it would really work as an upgrade. If that is impossible any change to the better would be OK to test. Else the phone is just garbage, I cant trust it.

I am totally green on this, and do not even know how to root a phone. Among the problems with the Lenovo, I got MMS problems, Bluetooth problems, and I miss the native android sip client.

As you understand I need a detailed description of every steps I have to do.

Thank you dsk

Show a piece of a Google Spreadsheet document on Andriod main screen

I have a Google Spreadsheets document that is frequently updated and there are some cells in it that show a kind of short summary. Let it be a 2×2 block of cells that contains two headers and two values. I want to see those cells on the main screen of my Android 6 device as a widget to be able to check those values at a glance without actually opening the Spreadsheets app.

Is there any relatively simple way to get this result? A page of code on Google Apps Script and/or some tricky use of IFTTT maybe?

Free Travel APP for Andriod

"Near Me" is the award winning App, it is your guide to discovering the best places Near you to Play, Eat and Stay that are perfect for you, at home or while traveling.


• Automatically finds your current location and plots it on a map.
• Translate App in your local Language
• You can easily find nearby clubs, hospitals, hotels, café, bars, banks, etc or any place you desire to look for
• Each location is attached with full details including address, images, rating, phone number,…

Free Travel APP for Andriod

Best free browser tester? (javascript issues with ipad, and andriod)

What is the best free browser tester? I have firefox and chrome. I am running into the issue where the page works fine on windows, but not in ipad, or certain versions of android. Its driving me nuts because it works fine in all chrome/firefox versions on windows and linux but not in ipad or certain versions of android. Any suggestions would greatly be appreciated.

the web page has javascript too.