How to read a folder structure in the assets folder in Android?

    AssetManager mngr_spinner = getAssets();
 try {
           int img_count = 0;
           folder_array = mngr_spinner.list(parent_folder_name);
    labels_array = new String[folder_array.length];
           for (int i = 0; i < folder_array.length; i++) 
        {
    // System.out.println("Folder " + folder_array[i]);
    if ((folder_array[i].endsWith(".png") || folder_array[i].endsWith(".jpg"))) 
         {
           img_count++;
         }
        }
      } catch (IOException e1) 
                  {
     e1.printStackTrace();
    }

Note : The folder will not be read if it has no contents in it.

Samsung Galaxy S4

Display
5inch Full HD Super AMOLED (1920 x 1080) display, 441 ppi


AP
1.9 GHz Quad-Core Processor / 1.6 GHz Octa-Core Processor
The seletion of AP will be differed by markets
Network
2.5G (GSM/ GPRS/ EDGE): 850 / 900 / 1800 / 1900 MHz
3G (HSPA+ 42Mbps): 850 / 900 / 1900 / 2100 MHz
4G (LTE Cat 3 100/50Mbps) : up to 6 different band sets (Dependent on market)
OS
Android 4.2.2 (Jelly bean)

Memory
16 / 32 / 64GB memory + microSD slot (up to 64GB), 2GB RAM
Camera
Main(Rear): 13 Mega pixel Auto Focus camera with Flash & Zero Shutter Lag, BIS
Sub (Front): 2 Mega pixel camera, Full HD recording @30fps with Zero Shutter Lag, BIS

Camera Features
Dual Shot , Drama Shot, Sound & Shot, 360 Photo, Animated Photo, Eraser, Night, Best Photo, Best Face, Beauty Face, HDR (High Dynamic Range), Panorama, Sports


Video
Codec: MPEG4, H.264, H.263, DivX, DivX3.11, VC-1, VP8, WMV7/8, Sorenson Spark, HEVC
Recording & Playback: Full HD (1080p)
Audio
Codec: MP3, AMR-NB/WB, AAC/AAC+/eAAC+, WMA, OGG,
FLAC, AC-3, apt-X
Additional Features
Group Play: Share Music, Share Picture, Share Document,
Play Games
Story Album, S Translator, Optical Reader
Samsung Smart Scroll, Samsung Smart Pause, Air Gesture,
Air View
Samsung Hub, ChatON (Voice/Video Call, Share screen,
3-way calling) Samsung WatchON
S Travel (Trip Advisor), S Voice™ Drive, S Health
Samsung Adapt Display, Samsung Adapt Sound, Auto adjust touch sensitivity (Glove friendly)
Safety Assistance, Samsung Link, Screen Mirroring
Samsung KNOX (B2B only)
Google Mobile Services
Google Search, Google Maps, Gmail, Google Latitude Google Play Store, Google Plus, YouTube, Google Talk, Google Places, Google Navigation, Google Downloads, Voice Search
Sensor
Accelerometer, RGB light, Geomagnetic, Proximity, Gyro,
Barometer
Temperature & Humidity, Gesture
Dimension
136.6 x 69.8 x 7.9 mm, 130g

Connectivity
WiFi 802.11 a/b/g/n/ac (HT80)
GPS / GLONASS
NFC, Bluetooth® 4.0 (LE)
IR LED (Remote Control), MHL 2.0
Battery
2,600mAh

Facebook CEO - Mark Zuckerberg on top CEO List

The Facebook chief earned a 99 percent approval rating from his social network employees, topping Glassdoor's annual list of the 50 highest rated CEOs.

Glassdoor surveyed hundreds of thousands of employees across various industries, and based on their feedback over the past 12 months, ranked the most impressive bosses, one of which happens to be hoodie-wearing billionaire Zuck.

Read the complete story here

http://www.pcmag.com/article2/0,2817,2416651,00.asp

Samsung to Launch First Tizen-Powered Phone

In an interview with The Wall Street Journal, Samsung mobile chief J.K. Shin said Samsung plans to release a Tizen-powered phone in the third quarter, raising questions about whether it is planning to move away from Google’s Android in the future.

Read more from here
http://blogs.wsj.com/digits/2013/03/14/samsung-to-launch-first-tizen-powered-phone-in-3q/

How to load a spinner with values from SQlite Database in android?

Here is a simple example showing how to load a database values in a spinner in android.

OK we will start.
This is the layout for the spinner row.
spinner_row.xml

activity_main.xml

Read the complete post here...

http://www.coderzheaven.com/2012/11/18/load-spinner-values-sqlite-database-android/

How to crop an Image in Android?

This is a sample program that launches the camera and crop the captured image.

Check this link to another crop image example.

This is the layout xml.
<strong>activity_main.xml</strong>

[xml]
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_margin="3dp"
        android:text="@string/intro"
        android:textStyle="bold" />

    <Button
        android:id="@+id/capture_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/capture" />

    <ImageView
        android:id="@+id/picture"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:contentDescription="@string/picture" />

</LinearLayout>
[/xml]

Now this is the Main Java File that implements the crop functionality.

Read More from here...

http://www.coderzheaven.com/2012/12/15/crop-image-android/

Select an Image from gallery in ANDROID and show it in an ImageView.

Hi all
In this tutorial I will show you how to get an image from your phone gallery and show it in an imageview.
Here we use intents to open up the image gallery and get the image URI.
Here I am setting the image type as “image” to get only the images.
And on onActivityResult if the result is OK, then get the data using getData() function and converting the imageURI to the stringPath.

Read more from here
http://www.coderzheaven.com/2012/04/20/select-an-image-from-gallery-in-android-and-show-it-in-an-imageview/

Customizing a spinner in android.

Hello everyone.........

 You all knew that a spinner or combobox is an inbuilt widget in android. And Like any other widgets spinners are also customizable. Here is a simple example to customize a spinner. First we will look at the java code. The getView method is called for each row in the spinner. So with the help of an Layout Inflater you can inflate any layout for each row. At extreme you can have each layout for each row. Check these older posts about spinner.

 1. How to get a selected Item from a spinner in ANDROID?
 2. How to set an item selected in Spinner in ANDROID?
 3. How to create a custom ListView in android?

Check out these of ListViews

 1. Simplest Lazy Loading ListView Example in Android with data populated from a MySQL database using php.
 2. How to add checkboxes and radio buttons to ListView in android? OR How to set single choice items in a ListView in android?

 Read complete code from here http://www.coderzheaven.com/2011/07/18/customizing-a-spinner-in-android/

ActionBar with Search Option and other options in Android.

This is the example showing how to start with ActionBar in android.

1. <a href="http://www.coderzheaven.com/2012/01/28/android-removes-the-need-of-menu-button-from-devices-with-actionbar/" title="ActionBar" target="_blank">Android removes the need of Menu button from devices with ActionBar.</a>

2. <a href="http://www.coderzheaven.com/2012/08/23/start-actionbar-android/" title="ActionBar" target="_blank">How to start with ActionBar in Android?</a>

3. <a href="http://www.coderzheaven.com/2012/09/28/dynamically-adding-removing-toggling-removing-actionbar-tabs-android-part-2/" title="ActionBar" target="_blank">Dynamically Adding, Removing, Toggling and Removing all ActionBar Tabs in Android – Part 2?</a>

 

Read complete post from here..

http://www.coderzheaven.com/2012/10/20/actionbar-search-option-options-android/

How to initialize an ArrayList in Android?

ArrayList<String> images_arr =
new ArrayList<String>(){
private static final long serialVersionUID = -1773393753338094625L;
{
add("string1");
add("string2");
add("string3");
add("string4");
}
};