ponnamkarthik

<manifest xmlns:android="http://schemas.android.com/apk/res/android">

    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"/>

    <application
        android:requestLegacyExternalStorage="true"
        android:label="directorylisting"
        android:name="${applicationName}"

ponnamkarthik

import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {

ponnamkarthik

# To convert csr or crt file
openssl x509 -in key.crt -out key.pem

# To convert private key to pem file
openssl rsa -in ./private.key -text > private.key.pem 

ponnamkarthik

import 'dart:math';
import 'package:flutter/material.dart';

void main() {
  runApp(MaterialApp(home: const CircleInsideCircle()));
}

class CircleInsideCircle extends StatefulWidget {
  const CircleInsideCircle({Key? key}) : super(key: key);

ponnamkarthik

# Image / Video Picker — Flutter

Hello All Flutter Developers

All of you know that flutter 1.9 has release and supports many new widgets. To know more what added [release notes here](https://github.com/flutter/flutter/wiki/Release-Notes-Flutter-1.9.1)

Today we are gonna see how to use `image_picker` plugin to get Image & Video file from Gallery & Camera

Here how it the flow will 
1) Add `image_picker` plugin in `pubspec.yaml`

ponnamkarthik

void _openCheckout() {
  var options = {
    'key': 'YOUR_RAZORPAY_API_KEY',
    'amount': 2000,
    'name': 'Example Store',
    'description': 'Payment for your order',
    'prefill': {'contact': '9876543210', 'email': 'customer@example.com'},
  };
  try {
    razorpay.open(options);

ponnamkarthik

// Import Razory Pay Dependencies
import 'package:razorpay_flutter/razorpay_flutter.dart';

// Create a Razorpay instance
Razorpay razorpay = Razorpay();

@override
void initState() {
  super.initState();
  // Attach Listeners for Payment Events

ponnamkarthik

# Definition for a binary tree node.
# class TreeNode:
#     def __init__(self, val=0, left=None, right=None):
#         self.val = val
#         self.left = left
#         self.right = right
class Solution:
    def maxDepth(self, root: Optional[TreeNode]) -> int:
        if not root:
            return 0

ponnamkarthik

# Definition for a binary tree node.
# class TreeNode:
#     def __init__(self, val=0, left=None, right=None):
#         self.val = val
#         self.left = left
#         self.right = right
class Solution:
    def maxDepth(self, root: Optional[TreeNode]) -> int:
        if not root:
            return 0

ponnamkarthik

# Definition for a binary tree node.
# class TreeNode:
#     def __init__(self, val=0, left=None, right=None):
#         self.val = val
#         self.left = left
#         self.right = right
class Solution:
    def isSymmetric(self, root: Optional[TreeNode]) -> bool:
        # Base case for root if it is None then we just simply return true
        if not root: