Latest Added Tutorials
06-05-2019
Android simple GET Request:
import android.os.AsyncTask;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class HttpGetRequestTask extends AsyncTask<String, Integer, String> {
private RequestResponseHandler requestResponseHandler;
public HttpGetRequestTask(RequestResponseHandler requestResponseHandler) {
this.requestResponseHandler=requestResponseHandler;
}
protected String doInBackground(String... urls) {...Continue Reading
27-01-2019
Create a notification on Android:
String name="";
String message="";
int MID=12345;
NotificationManager notificationManager = (NotificationManager) getActivity()
.getSystemService(Context.NOTIFICATION_SERVICE);
if(notificationManager==null)return;
String NOTIFICATION_CHANNEL_ID = "step_counter_channel";
NotificationChannel mChannel;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
int importance = NotificationManager.IMPORTANCE_LOW;
mChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID,
"step_counter_channe...Continue Reading
21-01-2019
MainActivity
public class MainActivity extends AppCompatActivity implements IabBroadcastReceiver.IabBroadcastListener {
private InAppBillingHelper inappbillingHelper;
private static final int IN_APP_BILLING_REQUEST_CODE = 10001;
private static final String SKU_TEST = "android.test.purchased";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initInappBillingHelper();
btnClick.setOnClickListener(new View.OnClickListener() {
@Override
pub...Continue Reading
activity_main.xml file
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+...Continue Reading
Fragment re-created on bottom navigation view item selected Solution
private void changeFragmentForBottomNavigationView(Bundle savedInstanceState, Fragment fragment) {
// Check that the activity is using the layout version with
// the fragment_container FrameLayout
if (findViewById(R.id.fragment_container) != null) {
// However, if we're being restored from a previous state,
// then we don't need to do anything and should return or else
// we could end up with overlapping fragments.
if (savedIns...Continue Reading
21-01-2019
import android.content.Context;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.forex.stockexchange4.R;
import com.forex.stockexchange4.models.CalculateSummaryObject;
import java.util.ArrayList;
import java.util.List;
public class CalculateF...Continue Reading
Php Steps
1. Install Socialite: composer require laravel/socialite
2. Add following codes in config/services.php
'google' => [
'client_id' => env('GOOGLE_CLIENT_ID'), // Your Google Client ID
'client_secret' => env('GOOGLE_CLIENT_SECRET'), // Your Google Client Secret
'redirect' => 'http://www.codesenior.com',
],
And add GOOGLE_CLIENT_ID and GOOGLE_CLIENT_SECRET variables in .env file:
GOOGLE_CLIENT_ID=692373818685-1s057a8mja62g3i7cmj88v2spt3d8b8e.apps.googleusercontent.com
GOOGLE_CLIENT_SECRET=c-4CsKAagTYHVyPKbGVcbAsr...Continue Reading
01-11-2017
Error Message:
Error:Cause: com.android.build.gradle.tasks.factory.AndroidJavaCompile.setDependencyCacheDir(Ljava/io/File;)V
Solution: Change gradle version as follows:
buildscript {
repositories {
// Gradle 4.1 and higher include support for Google's Maven repo using
// the google() method. And you need to include this repo to download
// Android plugin 3.0.0 or higher.
google()
...
}
dependencies {
classpath 'com.android.tools.build:gradle:3.0.0'
}
}
Problem:
Error:Unable to r...Continue Reading
01-11-2017
Android GPSTracker.java
package com.su.prayertimes.util;
import android.Manifest;
import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.I...Continue Reading
19-08-2017
When using onesignal as notification system in Android application, we should insert following codes in ApplicationManifest.xml file:
<meta-data
android:name="com.onesignal.NotificationOpened.DEFAULT"
android:value="DISABLE" />
After adding this meta-data, Android will disable launcher activity to be opened.
Handle notification opened event as follows:
public class App extends Application {
protected boolean active = true;
protected int splashTime = 3000;
@Override
public void onCreate() {
s...Continue Reading
18-02-2017
You can use following codes to upload files with extra parameters in Android app:
public String uploadFile(String uri, String fileName) throws Exception {
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
FileInputStream fileInputStream = context.openFileInput(fileName);
URL url = new URL(uri);
// Open a HTTP connection to the URL
HttpURLConnection conn = (HttpURLConnection) url.openC...Continue Reading
Question:
1. What is the reason for setting MappedBy in bidirectional many-to-many relationships?
2. When one table has significant amount of records, while other has a few, which side is better to put mappedBy
Answer:
It's actually a good question, and it helps to understand the concept of an "owning" entity. If you want to prevent both sides (in a bidirectional relationship) from having join tables, a good idea, then you need to have a mappedBy= element on one side.
Whether or not there is a join table is controlled by the mappedBy="name" el...Continue Reading
In Spring 4, we can use following configuration to adjust concurrent session count:
To use concurrent session support, you’ll need to add the following to web.xml:
<listener>
<listener-class>
org.springframework.security.web.session.HttpSessionEventPublisher
</listener-class>
</listener>
In addition, you will need to add the ConcurrentSessionFilter to your FilterChainProxy. The ConcurrentSessionFilter requires two properties, sessionRegistry, which generally points to an instance of SessionRegistryImpl, and expiredUrl, wh...Continue Reading
You need to provide your own Binding methods and then create the correct subtypes. Spring wouldn't know otherwise which of the subtypes should be instantiated for which element.
Example: Url address can be like this: /proje-basvuru/ilk-uzun-metrajli-film or /proje-basvuru/kisa-film
@ModelAttribute("project")
public Project getProject(final HttpServletRequest request){
return createProject(getProjeBasvuruUrl(request.getRequestURI()));
}
private Project createProject(String projectType) {
if (projectType.equals("ilk-uzun-metrajli-film"))
r...Continue Reading
HsqlDb Connection
1. Download hsqldb.zip file from here
2. Extract zip file
3. Open bin folder in the hsqldb folder
4. Edit runServer.bat file as follows:
cd ..\data
@java -classpath ../lib/hsqldb.jar org.hsqldb.server.Server -database.0 mem:sample -dbname.0 sample
5. Save and run runServer.bat file
6. After running this file you should see the command prompt as follows:
Spring applicationContext-test.xml File
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"...Continue Reading