hilfritz

//from https://gist.github.com/jk2K/67502e1744e081dcfef5

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.support.annotation.NonNull;
import android.util.AttributeSet;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.ScaleGestureDetector;

hilfritz

 public static final ArrayList<DateTime> getAllDateTimeInMonth(int month, int year, String timezoneID){
        Log.d(TAG, "getAllDateTimeInMonth: month:"+month);

        DateTimeZone dateTimeZone = DateTimeZone.forID(timezoneID);
        DateTime dateTime = new DateTime(year, month, 1,0, 0, dateTimeZone);

        Log.d(TAG, "getAllDateTimeInMonth: month:"+month+" year:"+year);


        ArrayList<DateTime> daysInMonthLabels = new ArrayList<DateTime>();

hilfritz

use rxPermissions
https://stackoverflow.com/questions/32854169/does-checking-the-never-ask-again-box-when-asking-for-a-runtime-permission-disab


final String[] objects = new String[]{Manifest.permission.READ_PHONE_STATE, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION};



        findViewById(R.id.enableCamera).setOnClickListener(
                view -> rxPermissions

hilfritz

//MODEL CLASS

interface Model{
        void init(Gson gson);
        public Single<List<ImgAlbum>> getPhotos();
    }
    
 /**
 * @author Hilfritz Camallere on 6/11/18
 */

hilfritz

    property?.let { 
        //if 'property' is not null
        fancyPrint(it) //'it' refers to 'property'
    } ?: run {
        //'else' clause - property is null
        showError() 
    }

hilfritz

//----------------------------------SHORTCUTS----------------------
AUTORESIZE LABEL ACCORDING TO TEXT
 - SELECT LABEL + press CMD + '='

STRING CONCAT
        //let passwordInput = "HI THERE"
        //let usernameInput = "HELLO THERE
        let passwordInput:String = passwordField.text ?? ""
        let usernameInput:String = userNameField.text ?? ""
        let age = 19

hilfritz

//see https://stackoverflow.com/questions/37067271/android-graphics-drawing-same-size-circles
        float devicePixelsWidth = fragment.getResources().getDisplayMetrics().widthPixels;
        float deviceActualDpi = fragment.getResources().getDisplayMetrics().xdpi ;
        float deviceActualInchWidth = devicePixelsWidth / deviceActualDpi ;
        float deviceActualCMWidth = deviceActualInchWidth * 2.54f ;
        float PixelsForActual3CM = devicePixelsWidth / deviceActualCMWidth * 3;
        float radius = (float) (devicePixelsWidth / deviceActualCMWidth * 0.05);

hilfritz

import android.view.View;

/**
 * inspired and credits
 * @see http://stackoverflow.com/questions/16534369/avoid-button-multiple-rapid-clicks
 * A Debounced OnClickListener
 * Rejects clicks that are too close together in time.
 * This class is safe to use as an OnClickListener for multiple views, and will debounce each one separately.
 * This class allows a single click and prevents multiple clicks on
 * the same button in rapid succession. Setting unclickable is not enough

hilfritz

DialogFragmentClass{
    @Override
    public void onStart() {
        super.onStart();
        int width = (int)(getResources().getDisplayMetrics().widthPixels*0.95);
        int height = (int)(getResources().getDisplayMetrics().heightPixels*0.30);
        getDialog().getWindow().setLayout(width, ViewGroup.LayoutParams.WRAP_CONTENT);
        //THIS WILL MAKE WIDTH 90% OF SCREEN 
        //HEIGHT WILL BE WRAP_CONTENT
        //getDialog().getWindow().setLayout(width, height);

hilfritz

//source: https://github.com/ReactiveX/RxJava/issues/3505

####Emit each item 5 seconds after the previous item:
List<Integer> list = new ArrayList<>(Arrays.asList(1, 2, 3, 4, 5, 6));
Observable
  .interval(5, TimeUnit.SECONDS)
  .map(i -> list.get(i.intValue()))
  .take(list.size())
  .toBlocking()
  .subscribe(System.out::println)