martin-cotta

import UIKit

final class Singleton {
    static let sharedInstance = Singleton()
    private init() { }

    var value = ""
}

class ViewController: UIViewController {

martin-cotta

class AppContext {
  
  let device : UIDevice
  
  // Delay object creation
  lazy var dataService: DataService = DataService()
  
  // Property is depended on other parts of a class, that aren’t available yet
  lazy var isTablet: Bool = { [unowned self] in
    self.device.userInterfaceIdiom == .Pad

martin-cotta

public class Activity extends AppCompatActivity {  
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    RecyclerView recyclerView = getRecyclerView();
    List<Item> items = getItems(); 
    recyclerView.setAdapter(new DataAdapter(items));
  }
  
  static class Adapter extends DataBoundAdapter<Item, ItemBinding> {

martin-cotta

// on a portrait only app, when a video player is launched from a WebView
// and the user turn the phone into landscape and then closes the player,
// the navigation bar slips under the status bar

@property (nonatomic, strong) id observer;

- (instancetype)init {

  @weakify(self);
  

martin-cotta

__weak __typeof__(self) weakSelf = self;
dispatch_group_async(_operationsGroup, _operationsQueue, ^{
  __typeof__(self) strongSelf = weakSelf;
  [strongSelf doSomething];
  [strongSelf doSomethingElse];
});

martin-cotta

rm -rf /Applications/Android\ Studio.app
rm -rf ~/AndroidStudioProjects

rm -rf ~/Library/Preferences/AndroidStudio*
rm -rf ~/Library/Application\ Support/AndroidStudio*
rm -rf ~/Library/Logs/AndroidStudio*
rm -rf ~/Library/Caches/AndroidStudio*
rm -rf ~/Library/Android*
rm ~/Library/Preferences/com.google.android.studio.plist

martin-cotta

cd repo
git remote rename origin bitbucket
git remote add origin https://github.com/user/repo.git
git push -u origin master
git remote rm bitbucket

martin-cotta

git config --global core.editor "'c:/program files/sublime text 3/subl.exe' -w"

martin-cotta

# Required files:
# domain.crt and godaddy.p7b: provided by Godaddy when exporting
# private.key: self-generated file that was needed to create CSR (Certificate signing request)

$ openssl pkcs12 -export -in domain.crt -inkey private.key -certfile godaddy.p7b -out domain.pfx

# or if you need intermediate .cer instead of .p7b
$ openssl pkcs7 -print_certs -in godaddy.p7b -out godaddy.crt
$ openssl pkcs12 -export -in domain.crt -inkey private.key -certfile godaddy.cer -out domain.pfx

martin-cotta

import Foundation
import React

@objc(MyModule)
class MyModule: RCTEventEmitter {
        
  @objc func loadProducts(_ orderId: NSNumber, resolve: RCTPromiseResolveBlock, reject: RCTPromiseRejectBlock) {
    let products = // load products somehow ...
    if products {
      resolve(products);