ngima

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

---

General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

ngima

Create Windows bootable drive on macOS

1. Download Windows ISO (Windows 7 or latest) from Official Windows store
2. Once download finished, double click on ISO image. Mac will mount this ISO images in Volumes.
3. Skip to step 5 if you like command line options. Open 'Disk Utility' application, select your USB device under 'external' category. Look for field Device and copy that value (ex. disk4)
4. Right click on your device and select Erase then use following information to fill popup window

Name => WINDOWS10
Format => MS-DOS (FAT)
Scheme => GUID Partition Map

ngima

Hexadecimal color code for transparency

How to set transparency with hex value ?

In Android Native Development

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

ngima

//radapter
class $adapter$ : androidx.recyclerview.widget.RecyclerView.Adapter<$adapter$.ViewHolder>() {

    var data: MutableList<$model$> = mutableListOf()
        set(value) {
            field = value
            notifyDataSetChanged()
        }

    override fun onCreateViewHolder(parent: android.view.ViewGroup, viewType: Int): ViewHolder =

ngima

import android.util.Log;

public class Logger {
  public static void d(String tag, String message) {
    if (BuildConfig.DEBUG) Log.d(tag, message);
  }

  public static void e(String tag, String message) {
    if (BuildConfig.DEBUG) Log.d(tag, message);
  }

ngima

@Override
    protected void onActivityResult(final int requestCode, int resultCode, final Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        switch (requestCode) {
                                case REQUEST_TAKE_PICTURE:
                                    try {
                                        Uri uri = getImageUri(Profile.this, ((Bitmap) data.getExtras().get("data")));
                                        if (uri != null) {
                                            InputStream iStream = getContentResolver().openInputStream(uri);
                                            byte[] inputData = getBytes(iStream);

ngima

    private fun displayLocationSettingsRequest(context: Context) {
        var googleApiClient = GoogleApiClient.Builder(context)
                .addApi(LocationServices.API).build();
        googleApiClient.connect();

        var locationRequest = LocationRequest.create();
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        locationRequest.setInterval(30 * 1000);
        locationRequest.setFastestInterval(5 * 1000);

ngima

public class HeaderInterceptor
        implements Interceptor {
    @Override
    public Response intercept(Chain chain)
            throws IOException {
        Request request = chain.request();
        request = request.newBuilder()
                .addHeader("appid", "hello")
                .addHeader("deviceplatform", "android")
                .removeHeader("User-Agent")

ngima

package com.yipl.myapplication;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;

ngima

import java.io.Serializable;

public class Singleton implements Serializable {
    
    private static volatile Singleton sInstance;
    
    private Singleton() {
        if (sInstance != null) {
            throw new RuntimeException("Use getInstace() method to instantiate.")
        }