chaxiu

Diagram Coroutines: suspend

1. Preface

Coroutines is the most amazing feature in Kotlin.

In this post, I'll briefly introduce Kotlin coroutines, and then explain Coroutines in the form of Diagram + Animation. After reading this post, you may find out that Coroutines is not that difficult.

matteocrippa

Flutter

A quick cheatsheet of useful snippet for Flutter

Widget

A widget is the basic type of controller in Flutter Material. There are two type of basic Widget we can extend our classes: StatefulWidget or StatelessWidget.

Stateful

StatefulWidget are all the widget that interally have a dynamic value that can change during usage. It can receive an input value in the constructor or reference to functions. You need to create two classes like:

chinmaygarde

# Flutter (https://flutter.io) Developement Environment for Linux
# ===============================================================
#
# This environment passes all Linux Flutter Doctor checks and is sufficient
# for building Android applications and running Flutter tests.
#
# To build iOS applications, a Mac development environment is necessary.
#

FROM debian:stretch

FrancescoJo

import android.annotation.TargetApi
import android.os.Build
import android.security.keystore.KeyGenParameterSpec
import android.security.keystore.KeyProperties
import android.util.Base64
import timber.log.Timber
import java.security.GeneralSecurityException
import java.security.KeyStore
import javax.crypto.Cipher
import javax.crypto.KeyGenerator

chethann

package com.test.android.helpers;

import android.os.Build;
import android.webkit.WebResourceResponse;

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.test.android.Application;

import org.apache.commons.collections.CollectionUtils;

yitz-grocerkey

// for any errors that should be handled before being handed off to RxJava. 
// In other words global error logic. 
// An example might be 401 when not logging in

import okhttp3.Interceptor
import okhttp3.Response

class ErrorInterceptor: Interceptor {

    override fun intercept(chain: Interceptor.Chain?): Response {

koesie10

// Dagger 1 example
@Module(
        complete = false,
        library = true
)
public final class ApiModule {
    @Provides
    @Singleton
    Retrofit provideRetrofit(Gson gson, Application app) {
        return new Retrofit.Builder()

gabrielemariotti

You can use this class to realize a simple sectioned RecyclerView.Adapter without changing your code.

The RecyclerView should use a LinearLayoutManager. You can use this code also with the TwoWayView with the ListLayoutManager (https://github.com/lucasr/twoway-view)

This is a porting of the class SimpleSectionedListAdapter provided by Google

Example:

dafi

package com.ternaryop.phototumblrshare.widget;

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.TextView;

public class ClickableTextView extends TextView implements OnTouchListener {

sunnyone

final String command = "HELO\n";
final UUID sppUuid = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");

BluetoothAdapter.getDefaultAdapter();
if (btAdapter == null) {
	sendLogMessage("Bluetooth adapter is not available.");
	return;
}
sendLogMessage("Bluetooth adapter is found.");