Admin AJAX

//====================

function check_previous_videos() {
 	$output = array("exists" => false);
	// The $_REQUEST contains all the data sent via ajax 
	if ( isset($_REQUEST) ) {
 
		$video_name = $_REQUEST['video_name'];
		$not_in = $_REQUEST['post_id'];
		 $output ['not in'] = $not_in ;
		 $query_array = array(
		 	"post_type" => "post",
		 	"meta_key" => "video",
		 	 "meta_value" => $video_name,
		 	 "post__not_in" => array($not_in));
		$myquery = new WP_Query( $query_array);
		if($myquery->have_posts()){
			 $output ['exists'] = true;
		} 
	}

	echo json_encode($output );
	// Always die in functions echoing ajax content
   die();
}

add_action( 'wp_ajax_check_previous_videos', 'check_previous_videos' );


function check_old_videos($hook) {    
    wp_enqueue_script( 'my_custom_script', get_stylesheet_directory_uri(). '/js/sctipt.js' );
}
add_action( 'admin_enqueue_scripts', 'check_old_videos' );
 
//====================

//====================

function check_previous_videos() {

$output = array("exists" => false);

// The $_REQUEST contains all the data sent via ajax

if ( isset($_REQUEST) ) {

$video_name = $_REQUEST['video_name'];

$not_in = $_REQUEST['post_id'];

$output ['not in'] = $not_in ;

$query_array = array(

"post_type" => "post",

"meta_key" => "video",

"meta_value" => $video_name,

"post__not_in" => array($not_in));

$myquery = new WP_Query( $query_array);

if($myquery->have_posts()){

$output ['exists'] = true;

}

echo json_encode($output );

// Always die in functions echoing ajax content

die();

}

add_action( 'wp_ajax_check_previous_videos', 'check_previous_videos' );

function check_old_videos($hook) {

wp_enqueue_script( 'my_custom_script', get_stylesheet_directory_uri(). '/js/sctipt.js' );

}

add_action( 'admin_enqueue_scripts', 'check_old_videos' );

//====================

sctipt.js

$ = jQuery;
jQuery(document).ready(function($) {

    // Validate New Password fields
    $("#acf-field-video").blur(function() {
        var __that = $(this);
        $("#publish").prop('disabled', true);
        $.ajax({
            url: ajaxurl,
            data: {
                'action': 'check_previous_videos',
                'video_name': $("#acf-field-video").val(),
                'post_id' :$("#post_ID").val()
            },
            success: function(data) {
                // This outputs the result of the ajax request
                console.log(data);
                try {
                    var obj = JSON.parse(data);
                    if (obj.exists) {
                    	// $("#publish").prop('disabled', false);
                        __that.css("border-color", "#ff0000");
                    } else {
                        $("#publish").prop('disabled', false);
                        __that.css("border-color", "#008000");
                    }
                } catch (e) {}
            },
            error: function(errorThrown) {
                console.log(errorThrown);
            }
        });
    });
});

$ = jQuery;

jQuery(document).ready(function($) {

// Validate New Password fields

$("#acf-field-video").blur(function() {

var __that = $(this);

$("#publish").prop('disabled', true);

$.ajax({

url: ajaxurl,

data: {

'action': 'check_previous_videos',

'video_name': $("#acf-field-video").val(),

'post_id' :$("#post_ID").val()

success: function(data) {

// This outputs the result of the ajax request

console.log(data);

try {

var obj = JSON.parse(data);

if (obj.exists) {

// $("#publish").prop('disabled', false);

__that.css("border-color", "#ff0000");

} else {

$("#publish").prop('disabled', false);

__that.css("border-color", "#008000");

}

} catch (e) {}

error: function(errorThrown) {

console.log(errorThrown);

}

});

shubham sharma May 30, 2017 Read More

Clear Cache in Android Application programmatically

If you are looking for delete cache of your own application then simply delete your cache directory and its all done !

public static void deleteCache(Context context) {
    try {
        File dir = context.getCacheDir();
        deleteDir(dir);
    } catch (Exception e) {}
}

public static boolean deleteDir(File dir) {
    if (dir != null && dir.isDirectory()) {
        String[] children = dir.list();
        for (int i = 0; i < children.length; i++) {
            boolean success = deleteDir(new File(dir, children[i]));
            if (!success) {
                return false;
            }
        }
        return dir.delete();
    } else if(dir!= null && dir.isFile()) {
        return dir.delete();
    } else {
        return false;
    }
}

public static void deleteCache(Context context) {

try {

File dir = context.getCacheDir();

deleteDir(dir);

} catch (Exception e) {}

}

public static boolean deleteDir(File dir) {

if (dir != null && dir.isDirectory()) {

String[] children = dir.list();

for (int i = 0; i < children.length; i++) {

boolean success = deleteDir(new File(dir, children[i]));

if (!success) {

return false;

}

return dir.delete();

} else if(dir!= null && dir.isFile()) {

return dir.delete();

} else {

return false;

}

And you may require following permission to add in your manifest file in order to delete cache of other application

<uses-permission android:name="android.permission.CLEAR_APP_CACHE"/>

1	<uses-permission android:name="android.permission.CLEAR_APP_CACHE"/>

shubham sharma May 25, 2017 Read More

Service Thread IntentService AsyncTask

Android Thread Constructs(Part 4): Comparisons In this series of posts we have seen the following thread constructs: 1. Basic threads and communication between them [see article] 2. Understanding the Main thread or the UI thread [see article] 3. IntentService [see article] 4. AsyncTask [see article] NOTE: These are Android specific constructs. Android also includes the […]

shubham sharma May 19, 2017 Read More

Play music in android

Do it without service http://www.rbgrn.net/content/307-light-racer-20-days-61-64-completion If you are so serious about doing it with services using media player

Intent svc=new Intent(this, BackgroundSoundService.class);
startService(svc);

1 2	Intent svc=new Intent(this, BackgroundSoundService.class); startService(svc);

public class BackgroundSoundService extends Service {
    private static final String TAG = null;
    MediaPlayer player;
    public IBinder onBind(Intent arg0) {

        return null;
    }
    @Override
    public void onCreate() {
        super.onCreate();
        player = MediaPlayer.create(this, R.raw.idil);
        player.setLooping(true); // Set looping
        player.setVolume(100,100);

    }
    public int onStartCommand(Intent intent, int flags, int startId) {
        player.start();
        return 1;
    }

    public void onStart(Intent intent, int startId) {
        // TO DO
    }
    public IBinder onUnBind(Intent arg0) {
        // TO DO Auto-generated method
        return null;
    }

    public void onStop() {

    }
    public void onPause() {

    }
    @Override
    public void onDestroy() {
        player.stop();
        player.release();
    }

    @Override
    public void onLowMemory() {

    }
}

public class BackgroundSoundService extends Service {

private static final String TAG = null;

MediaPlayer player;

public IBinder onBind(Intent arg0) {

return null;

}

@Override

public void onCreate() {

super.onCreate();

player = MediaPlayer.create(this, R.raw.idil);

player.setLooping(true); // Set looping

player.setVolume(100,100);

}

public int onStartCommand(Intent intent, int flags, int startId) {

player.start();

return 1;

}

public void onStart(Intent intent, int startId) {

// TO DO

}

public IBinder onUnBind(Intent arg0) {

// TO DO Auto-generated method

return null;

}

public void onStop() {

}

public void onPause() {

}

@Override

public void onDestroy() {

player.stop();

player.release();

}

@Override

public void onLowMemory() {

}

Please call this service in Manifest

<service android:enabled="true" android:name=".BackgroundSoundService " />

1	<service android:enabled="true" android:name=".BackgroundSoundService " />

shubham sharma May 15, 2017 Read More

How To Backup Saved Passwords In Google Chrome Browser

Google Chrome browser allows you import bookmarks, browsing history, and other settings from Internet Explorer or Firefox browser in a jiffy. But the only problem is it doesn’t have an option to export or backup stored passwords. Sure, there is a free extension called LastPass, but even it doesn’t help much either to have an […]

shubham sharma April 22, 2017 Read More

Android view lifecycle

What is View? View class represents the basic building block for user interface components. A View occupies a rectangular area on the screen and is responsible for drawing and event handling. View is the base class for widgets, which are used to create interactive UI components (buttons, text fields, etc.). The ViewGroup subclass is the […]

shubham sharma April 19, 2017 Read More

Android Issues

getWidth() and getHeight return zero after onMeasure() (specific devices) Use getMeasuredWidth/Height() here. getWidth/Height() aren’t valid until after a layout.

shubham sharma April 19, 2017 Read More

prevent direct access

ErrorDocument 401 http://touringcompanions.com/home
ErrorDocument 403 http://touringcompanions.com/home
ErrorDocument 500 http://touringcompanions.com/home

Options -Indexes

ErrorDocument 401 http://touringcompanions.com/home

ErrorDocument 403 http://touringcompanions.com/home

ErrorDocument 500 http://touringcompanions.com/home

Options -Indexes

shubham sharma April 1, 2017 Read More

REGEX Tips

(?i) starts case-insensitive mode (?-i) turns off case-insensitive mode

shubham sharma March 30, 2017 Read More

How to setup server to serve fonts (Allow any file in from one server to another server “Access-Control-Allow-Origin”)

back to help index In order to display fonts right, browser must receive font files with correct http headers. If server does not set required headers, some browsers can report errors in console or completely fail to display fonts. Probably, your server is already configured, and you don’t need to change anything. If not, you […]

shubham sharma March 27, 2017 Read More

New Dev Point

Some problems explained

Admin AJAX

Clear Cache in Android Application programmatically

Service Thread IntentService AsyncTask

Play music in android

How To Backup Saved Passwords In Google Chrome Browser

Android view lifecycle

Android Issues

prevent direct access

REGEX Tips

How to setup server to serve fonts (Allow any file in from one server to another server “Access-Control-Allow-Origin”)