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Android O Released with Top 7 New Features for App Developers
Android was founded by Andy Rubin, Rich Miner, Nic
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An Overview of Android Activity - Video Tutorial
As far as Android platform is concerned, the funda
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How to get IMEI number,serial number and software version of your phone
Hello... Sometimes we need to know the country
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Search location by using place on google map
Here below is the code for searching places by usi
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How to know free space in sdcard android
I have written code to know free space in sdcard
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How to convert image color to Gray Scale using OpenCV?
OpenCV library is useful to convert image background color to another RGB color.
We basically read the image using BufferedImage then we read bytes data from that image and we create a new MAT by applying image height and width and then put th...
How to match template using openCV ?
Template matching with openCV basically works on matrix reading of searched image.
following is the example of Template matching using openCV :
xml file to show resulting image after image search :
<?xml version="1.0" enco...
How to show openCV native camera in Android ?
In previous blog we added openCV android sdk and native libraries in our project so that we can use sdk.
Here we will show camera in our Android app using openCV sdk.
in your activity's xml file add this :
<org.opencv.android.Ja...
How to add openCV sdk and native libs in your project?
OpenCV is an open source project that provides OpenCV android SDK to match one template against other.
These are the following steps to add OpenCv in your project :
1. First of all download Android studio from this link - https://developer....
How to get android device macAddress, IMEI no and uniqueId
To grab MAC address first we have to enable device WIFI, after enabling it we can get the MAC address.
public static String macAddress(final Context context){
WifiManager wifiManager = (WifiManager) context.getSystemService(Context....
How to read notification title, text and package name in android?
If you want to read your incoming notifications title, text and package name in your android application then below few lines of code will be helpful for you. To read incoming notification we have to add a BIND_NOTIFICATION_LISTENER_SERVICE in ou...
How to Insert, Select and Delete all table row data in SQLite database?
In the below example code I have clearly described how to insert,Select and delete all table row from the database. Here, first I have extended SQLiteOpenHelper class After this I have used onCreate method to create a database table. In next step...
Google sign in with google play service 9.0
With Google play services v9 we can easily sign in with google in our apps, now we have GoogleSignInOptions builder that is used to configure Google sign in api.
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions....
How to set arrow on custom seekbar ?
we can set arrow based seekbar using following trick like this : First of all you have to set a image of scale then below that image set a seekbar with progressDrawable transparent and then set arrow image as a thumb.
<?xml version=&q...
Set Custom View to TabLayout android
This blog is about adding custom Layout to TabLayout.
Here we start.
1. Create Project.
2. Open Gradle file of the project.
3. Add design dependencies to the gradle.
compile 'com.android.support:des...
Set help or show case view on screen
Showcase view or Help view is basically used to show some useful content on any screen when user comes first time there.
This is the github library you can use to set showcase in easy way like this :
add library in gradle file :
compil...
How to crop an image in android
Step1: First we have to add jcenter() repository to Project build.gradle
allprojects {
repositories {
jcenter()
}
}
Step2: Now add cropping library in our app build.gradle and synchronize the application.
compi...
Display a list of all installed application in an android device
The PackageManager class is used to get the information of application packages that are currently installed on android device. You can get an instance of PackageManager class using getPackageManager().
Below example will show you ho...
Staggered Grid Layout with RecyclerView android
This blog is about how to create StaggeredGridLayout with Recycler view in Android.
Recyler View is advanced version of ListView/GridView.
Here we start how to Create StaggeredGridLayout with Recyler View.
1. Create Project.
...
Horizontal RecylerView Android
This blog is about how to create Horizontal Recycler view in Android.
Recyler View is advanced version of ListView.
Here we start how to convert Recyler View scrolling to Horizontal scroll.
1. Create Project.
2. Create Activity.
...
How to make Tab layout with using material design support library
In the below example I have created a Tab layout using design support library.
When user clicks on tab, tab color will change, mean it will identify that you have clicked on that particular tab. Here, first I have added materi...
Get Android app version from Play Store link andorid
This blog is about get current version of Android app on Play Store android using Jsoup. There is no official API to get version number but we can get it by reading HTML.
Here we start.
1. Create Project.
2. Open Manifest file and...
Hands-up Notification Android
Hand-Up notification comes up with API level 21.
Hands-up notification is open small floating window on top of the screen only when device is active.
Hand-up notifications are High-priority notifications.Hands-up notification required to set ...
How to make Flip animation image in android?
In the below example code, I have set the animation to an ImagView when you clicks on image, image will rotate 180 degrees from Y axis. Here first, I have added an ImageView within actvity_main.xml layout, after that I have created a flip.x...
ProgressBar in Notification Android
Sometime we need to download large file from server or some progress which takes time. For user experience we show progress bar so that user can check estimate time and progress completion.
This blog is about how to set up Progress bar in No...
Integrate Splunk MINT in an android project
Splunk MINT is used to send crash report of your mobile application.
After integrating Splunk MINT SDK in your application, you can use Splunk MINT Management Console to monitor your mobile apps.
Follow the simple steps to integrate...
Methods to monitor android EditText
If you have to perform certain tasks before, after and during the text changes in android EditText the following methods will help you to monitor your operations. Implementing the Textwatcher interface provides the callback methods listed below, ...
Accessing another apps by listing installed applicatoins in android
This tutorial is for getting the list of installed apps in your android devices. The information we reterive with the currently installed apps in a device using PackageManager class. We will get the instance of this class by calling getPack...
Navigation Activites on Deep Linking andorid
This blog is about Navigation of application activities. When an Activity is opened with Deep Linking then pressing back button close application instead of working in normal backstack flow.
If you are not familiar with Deep Linking then pleas...
Big View Notification Android
This tutorial is about Big View of Notification.
Big View notification introduced in Android 4.1.
Big View Notification has advantage to set functionality from Notification like you Alarm application
and you can Dismiss/Snooze alarm ...
How to use Chronometer in Android?
Below example code will helps you to create Chronometer. For this firstly, In activity_main.xml layout I have added buttons and Chronometer layout. Now See MainActivity, here I have used start(), stop(), SystemClock.elapsedRealtime()), setFormat(...
Clean cache of all applications below API 23 Android
This blog is for cleaning cache of all application using Reflection on below API leve 23 i.e Marshmallow.
1. Create Project.
2. Create package in root folder with name android.content.pm.
3. Create aidl file int this package with name IP...
Get Cache Size of Apps Android
This tutorial is about getting internal cache size for all applications. There is no such API is available in android because of Security reasons.
So we will get cache size of all apps with Reflection.
Here we start:-
...
How to get data from assets file in android?
In the below example I have described how to get data from assets folder. Firstly I have created txt.json file in assets folder. In txt.json file I have added JSON data. Now See In MainActivity code I have created loadJSONFromAsset() method, in t...
Getting RAM Details Android.
This Blog is about RAM detail that Total Ram size your Android Device and used Ram size in your Android Device.
From API level 16 Android gives properties to get Ram information.
In this tutorial I will explain to get RAM size for...
How to test listview click event using TDD in android ?
We know that test driven development is basically for functional testing , in this blog we will test listview using instrumentation method runOnMainSync() that executes a call on application main ui thread.
here is the layout file :
<L...
How to integrate google analytics in Android Application
Are you interested in tracking your Android app activities? If yes, Google Analytics provides a service for which real time tracking of Activities, fragments, events, exceptions and crash reports can be done easily.
Steps to integrate Google A...
How to Use Deep Linking in Android?
In the below example code I have enabled deep linking. Let's consider, you have shared your app in social network like, Gmail, Facebook, Whatsapp etc. When users click on the link you shared then your app will open, if it's installed in h...
List and Detail of all installed application Android
There is multiple ways to get installed application information like PackageInfo and ApplicationInfo.
In this tutorial I will show both way to get All installed applications.
Step 1:- get Package Manager In...
How to expand and collapse header/toolbar in android
1. Coordinator Layout: Coordinator layout is the super set of frame layout. Expanding and contracting of header/toolbar to gain more view for the main content. As per the property of frame layout it can have multiple child views but the additiona...
Pedometer
PEDOMETER
Hello All ,
As health concerns are growing up here comes a basic idea how to create a pedometer app, This blog will guide to create a pedometer and manipulate its setting to get the accuracy of foot steps, you...
TDD to test android activity
Test driven development is basically a procedure to achieve actual functionality or goal. This is also called in short TDD. This process contains following steps that are :
Write test cases
Run ...
Perform different operations using package name in android
1) If your requirement is to get app icon from package name then below few lines of code will be helpful for you.
try
{
Drawable app_icon = getPackageManager().getApplicationIcon("PACKAGE_NAME");
my_imageView.setBackgrou...
Convert bytes to human readable form Android Java
Convert bytes data to human readable form.
1. I initialized the byte with random number;
long bytes = 123456;
2. Initialize String[] of data types.
String[] types = {"kb", "Mb", "GB", "TB", "PB", "EB"};
3. initial...
Water Reflection to Image Android
This blog is about how to create water reflection image.
1. Create android Project.
2. Activity layout file is look like :-
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/...
FlexBox layout in android
In the below example I have describes "how to use FlexBox layout". FlexboxLayout extends the ViewGroup like relative layout and linear layout. You can add different attributes to the flexlayout like flexDirection, flexWrap, justif...
How to get the debug or Signed SHA1 fingerprint for Android Application in Ubuntu
SHA-1 fingerprint is used for creating a digital certificate, either debug certificate and released certificate. Debug certificate is when application is in testing phase and released when ready to be in a live mode. Fingerprint is a hexadecimal ...
How to generate keyhash for Android App(Facebook integration)
If you need to integrate Facebook SDK in your android app you have to generate keyhash, to configure Facebook API console. Add this method to your utility class and call this method from onCreate() of any Activity. For digital data integrity and ...
How to get all accoutns registered in device ?
Sometimes it is required to get all the accounts registered in device like facebook , gmail, linkedin account as well as whatsapp account.
Account Manager provides list of all centralized account of device.
First of all we can have the inst...
Scan document like CS Scanner using OpenCV and NDK
In my last blog I have written about how to use Jhansi Karee's Android Scanning library.
This blog is about how you can use/modify library code according to your requirement.
I am assuming that you are already familiar...
How to auto-restart app after Crash/Force close in Android
In this tutorial, we will learn about how to handle exceptions manually in android using UncaughtExceptionHandler and how to restart app after exceptions. Some of the cases App gets crashed or situations like force close. Thread.setDefaultUncaugh...
Clear Application Cache Programatically.
Clear Cache Programatically
Hello All,
This is a simple tutorial to clear cache of your application, Sometimes there is need in our application to store some of the files on device cache and we don have the choice to move them to SD c...
Bar code scanner using Zxing library
There are too many libraries available to read qr code like Zbar and zxing library. Here we are showing how to use Zxing lib to scan qr code :
First of all add dependency in app gradle file :
compile 'me.dm7.barcodescanner:zxing:...
How to read or sync only newly added smses ?
Basically we sync all the smses everytime when user do login in our app but this is time consuming task to do all the time so it would be better and effective if we sync only new smses after last sync.
so basically for the first time we have...
How to read or sync only newly added contact ?
Basically we sync all the contact everytime when user do login in our app but this is time consuming task to do all the time so it would be better and effective if we sync only new contact after last sync.
so basically for the first time we ha...
