Temidtech

String assetName = call.argument("asset");
String assetLookupKey = registrar.lookupKeyForAsset(assetName);
AssetFileDescriptor fd = registrar.context().getAssets().openFd(assetLookupKey);
player = new VideoPlayer(eventChannel, handle, fd, result);

Temidtech

void main() {
  List todo = ['Drink', 'Chat', new Task('Code Flutter', Priority.high), 'Profit'];
  runApp(
    new MaterialApp(home: new MyTodoList(todo)),
  );
}
class MyTodoList extends StatefulWidget {
  final List<Widget> items;
  MyTodoList(this.items);
}

Temidtech

Widget build(BuildContext context) {
  List<Widget> remaining = widget.items.sublist(_done);
  return new Scaffold(
    body: (remaining.length <= 3)
        ? new Column(children: remaining)
        : new Text('${remaining.length} items left to do'),
    floatingActionButton: new FloatingActionButton(onPressed: _doOneThing),
  );
}

Temidtech

type 'List<dynamic>' is not a subtype of type 'List<Widget>' where
  List is from dart:core
  Object is from dart:core
  List is from dart:core
  Widget is from package:flutter/src/widgets/framework.dart

main (file:///Users/temidjoy/tmp/todo/lib/main2.dart:4:37)

Temidtech

//This code snippet tests network connectivity for Wi-Fi and mobile.
//It determines whether these network interfaces are available 
//(that is, whether network connectivity is possible) and/or 
//connected (that is, whether network connectivity exists and
//if it is possible to establish sockets and pass data):

private static final String DEBUG_TAG = "NetworkStatusExample";
...
ConnectivityManager connMgr = (ConnectivityManager)
        getSystemService(Context.CONNECTIVITY_SERVICE);

Temidtech

// SetUp the Library 
android {
  compileSdkVersion 26
  ...
}

dependencies {
  ...
  implementation 'com.android.support:palette-v7:27.1.1'
}

Temidtech

var output: String
output = null   // Compilation error

==================================

val name: String? = null    // Nullable type
println(name.length())      // Compilation error


val nonNullableString = nullableString ?: "" //returns empty string if variable is null

Temidtech

import kotlinx.android.synthetic.main.content_main.*

class LoginActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        // No need to call findViewById(R.id.textView) as TextView
        userName.text = "temidayo"

Temidtech

//Declare a Person Class
data class Person(val name: String) {
    var age: Int = 0
}

val person1 = Person("John")
val person2 = Person("John")

person1.age = 10

Temidtech

//jAVA code to set Onclick event to a button
button.setOnClickListener(new View.OnClickListener(){
    @Override
    public void onClick(View v){
        doSomething();
    }
});

//Kotlin gets it done in 1 line..
button.setOnClickListener { doSomething() }