DEV Community: Sandeep kamboj

CSS "SAD MAN"

Sandeep kamboj — Sat, 18 Aug 2018 05:32:09 +0000

Receive Data without $_GET,$_POST AND $_REQUEST

Sandeep kamboj — Fri, 10 Aug 2018 06:27:40 +0000

In php there is also method or functionality which can be used to receive data without GET,POST and REQUEST.

Which is

$input_date_from_client = file_get_contents('php://input');

Dancing String

Sandeep kamboj — Fri, 27 Jul 2018 08:41:44 +0000

Dancing String

CSS Loading Effect

Sandeep kamboj — Thu, 26 Jul 2018 01:40:35 +0000

Css provides good opportunity to create loading effect. There is no need to include external gif loader.

HTML :

<div class="spinner">
  <div class="double-bounce1"></div>
  <div class="double-bounce2"></div>
</div>

CSS :

.spinner {
  width: 40px;
  height: 40px;

  position: relative;
  margin: 100px auto;
}

.double-bounce1, .double-bounce2 {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #333;
  opacity: 0.6;
  position: absolute;
  top: 0;
  left: 0;

  -webkit-animation: sk-bounce 2.0s infinite ease-in-out;
  animation: sk-bounce 2.0s infinite ease-in-out;
}

.double-bounce2 {
  -webkit-animation-delay: -1.0s;
  animation-delay: -1.0s;
}

@-webkit-keyframes sk-bounce {
  0%, 100% { -webkit-transform: scale(0.0) }
  50% { -webkit-transform: scale(1.0) }
}

@keyframes sk-bounce {
  0%, 100% { 
    transform: scale(0.0);
    -webkit-transform: scale(0.0);
  } 50% { 
    transform: scale(1.0);
    -webkit-transform: scale(1.0);
  }
}

Few other types of CSS Loader

http://tobiasahlin.com/spinkit/

https://loading.io/css/

How to read SD card in android

Sandeep kamboj — Fri, 20 Jul 2018 06:55:05 +0000

In android Environment.getExternalStorageDirectory() is used to read the external storage of android device. But it reads Internal Memory of device not SD card.

So there is other method to read the SD card in android device.


String sdcard_path = System.getenv("SECONDARY_STORAGE");

It returns the path of sd card. To check whether SD card in inserted in device or not following code is used to do that.

    public boolean isCard()
    {

        return new File(System.getenv("SECONDARY_STORAGE")).exists();

    }

Parse JSON string without JSON.parse and eval()

Sandeep kamboj — Sat, 14 Jul 2018 07:20:18 +0000


    var jsonStr="{name:'abc',age:20}";
    var jsonObject = (new Function( "return " + jsonStr ) )() ;
    console.log(jsonObject);

Find Greatest Number Using Ternary Operator

Sandeep kamboj — Thu, 12 Jul 2018 09:45:22 +0000



var a=62;
var b=200;
var c=8;
var largestnumber = (a>b&&a>c?a:(b>a&&b>c?b:c));
alert(largestnumber);

Execute Javascript String using setTimeout

Sandeep kamboj — Wed, 11 Jul 2018 11:35:25 +0000


window.sum=0;

window.ExecuteJavascriptString = function()
{

    var data = "var a=3;"+
       "var b=4;"+
       "sum=a+b;"+
       "ShowResult()";
    setTimeout(data, 1);
}
ExecuteJavascriptString();  


window.ShowResult = function(){
    console.log(sum);
    alert(sum);
}

Convert ArrayList() To Stirng[] Array in Android

Sandeep kamboj — Wed, 11 Jul 2018 04:38:47 +0000

ArrayList list=new ArrayList<>();
list.add("A");
list.add("B");
list.add("C");
list.add("D");

String[] stringArr=TextUtils.join(",",list).split(",");