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ad view(inmobi): corona SDK

Friday, May 10th, 2013 at 8:34 am

Creating adview using inmobi in corona is so simple. First register your app in inmobi. Then you will get an appID.

–==================================================================================================
local adNetwork = “inmobi”
local appID = enter your appId here as a stirng (eg:”430bbd07443248c5f69cdebac5433876″)
local ads = require “ads”
ads.init( adNetwork, appID, adListener )

local sysModel = system.getInfo(“model”)
local sysEnv = system.getInfo(“environment”)

local showAd = function( adType )
local adX, adY = 0, 0
ads.show( adType, { x=adX, y=adY, interval=60, testMode=true } ) – standard interval for “inneractive” is 60 seconds
end

if sysEnv ~= “simulator” then
showAd( “banner” )
end
–==================================================================================================

How to detect the direction of an object with physics: Corona SDK

Wednesday, April 24th, 2013 at 11:55 am

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local xVelocity, yVelocity
xVelocity, yVelocity = physicsObject:getLinearVelocity()
if xVelocity &gt; 0 then
print( "Object goes right" )
end
if xVelocity &lt; 0 then
print( "Object goes left" )
end
if yVelocity &gt; 0 then
print( "Object goes down" )
end
if yVelocity &lt; 0 then
print( "Object goes up" )
end

local xVelocity, yVelocity

xVelocity, yVelocity = physicsObject:getLinearVelocity()

if xVelocity > 0 then

print( "Object goes right" )

end

if xVelocity < 0 then

print( "Object goes left" )

end

if yVelocity > 0 then

print( "Object goes down" )

end

if yVelocity < 0 then

print( "Object goes up" )

end

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How to renames a file or directory : corona SDK

Wednesday, March 20th, 2013 at 11:08 am

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The following lines of code will help you to renames a file or directory in a corona SDK project:

local destDir = system.DocumentsDirectory  -- where the file is stored
local results, reason = os.rename( system.pathForFile( "fileName.txt", destDir  ),
system.pathForFile( "apple.txt", destDir  ) )

if results then
print( "file is renamed" )
else
print( "file is not renamed", reason )
end

local destDir = system.DocumentsDirectory -- where the file is stored

local results, reason = os.rename( system.pathForFile( "fileName.txt", destDir ),

system.pathForFile( "apple.txt", destDir ) )

if results then

print( "file is renamed" )

else

print( "file is not renamed", reason )

end

– if there is no such file, you will get the following the message in the console.

file not renamed    fileName.txt: No such file or directory

1	file not renamed fileName.txt: No such file or directory

How to check if the string does not contain any alphabetic characters : PHP

Wednesday, March 20th, 2013 at 10:58 am

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The following lines of code will do :

 $myString="abC123";
   if( preg_match('([a-zA-Z])', $myString) ) 
   { 
      echo('The string contains letters.');
   }
   else 
   {
      echo('The string contains no letters.');
   }

$myString="abC123";

if( preg_match('([a-zA-Z])', $myString) )

{

echo('The string contains letters.');

}

else

{

echo('The string contains no letters.');

}

How to change/disable the highlight color of a table cell : Xcode

Wednesday, March 20th, 2013 at 9:51 am

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You can change/disable the highlight color of a table cell using the following codes…

[cell setSelectionStyle:UITableViewCellSelectionStyleBlue];  // set highlighting color = Blue
[cell setSelectionStyle:UITableViewCellSelectionStyleGray];  // set highlighting color = Gray
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];  // Disable highlighting

[cell setSelectionStyle:UITableViewCellSelectionStyleBlue]; // set highlighting color = Blue

[cell setSelectionStyle:UITableViewCellSelectionStyleGray]; // set highlighting color = Gray

[cell setSelectionStyle:UITableViewCellSelectionStyleNone]; // Disable highlighting

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How to check if an image exists in app bundle or not : XCode

Tuesday, March 19th, 2013 at 5:50 am

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You can use the following lines of code to check whether an image is in the app bundle or not in Xcode :

-(void)CheckForImageInBundle
{
NSString *exists = [[NSBundle mainBundle]pathForResource:@"Image" ofType:@"png"];  //This stores the path of the resource with the name "Image" and of type "png" to the string. Nothing will be stored if there is no such file.
if(exists == nil){
NSLog(@"Doesn't exist");
}
else{
NSLog(@"Exists!");
}
}

-(void)CheckForImageInBundle

{

NSString *exists = [[NSBundle mainBundle]pathForResource:@"Image" ofType:@"png"]; //This stores the path of the resource with the name "Image" and of type "png" to the string. Nothing will be stored if there is no such file.

if(exists == nil){

NSLog(@"Doesn't exist");

}

else{

NSLog(@"Exists!");

}

Incoming search terms:

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How to draw a line using Quartz 2D : XCode

Monday, March 18th, 2013 at 12:06 pm

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You can use this to draw lines, shapes, graphs etc. from within your Xcode app. First of all, import QuartzCore.framework to the project.

Create a UIView subclass file, name it ‘drawClass’.

In drawClass.m :

There will be a ‘- (void)drawRect:(CGRect)rect’ function in the .m file. Override it using the following :

- (void)drawRect:(CGRect)rect
{
// Drawing code
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetLineWidth(context, 2.0);
CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();
CGFloat components[] = {1.0, 0.0, 1.0, 1.0};
CGColorRef color = CGColorCreate(colorspace, components);
CGContextSetStrokeColorWithColor(context, color);
CGContextMoveToPoint(context, 10, 300);
CGContextAddLineToPoint(context, 20, 100);
CGContextStrokePath(context);
CGColorSpaceRelease(colorspace);
CGColorRelease(color);
}

- (void)drawRect:(CGRect)rect

{

// Drawing code

CGContextRef context = UIGraphicsGetCurrentContext();

CGContextSetLineWidth(context, 2.0);

CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();

CGFloat components[] = {1.0, 0.0, 1.0, 1.0};

CGColorRef color = CGColorCreate(colorspace, components);

CGContextSetStrokeColorWithColor(context, color);

CGContextMoveToPoint(context, 10, 300);

CGContextAddLineToPoint(context, 20, 100);

CGContextStrokePath(context);

CGColorSpaceRelease(colorspace);

CGColorRelease(color);

}

In viewController.m

# import "drawClass"

1	# import "drawClass"

Inside viewDidLoad method, create an object of drawClass and call it.

drawClass *drawLine = [[drawClass alloc] initWithFrame:CGRectMake(0,0, 320, 480) ];
[drawLine setBackgroundColor:[UIColor clearColor]];
[self.view addSubview:drawLine];

drawClass *drawLine = [[drawClass alloc] initWithFrame:CGRectMake(0,0, 320, 480) ];

[drawLine setBackgroundColor:[UIColor clearColor]];

[self.view addSubview:drawLine];

Build and run. This will draw a line on your viewController page.

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How to put one div in front of a other : HTML

Monday, March 11th, 2013 at 9:19 am

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<code>If you want to display the content of one div over another, you can use the following code :


&lt;html&gt;
    &lt;body&gt;
      &lt;style&gt;

       #div_1
       {
         position:absolute;
         left:0px;
         top:0px;
         z-index:-1;
       }
     &lt;/style&gt;

    &lt;div id='div_1'&gt;
       &lt;img src="https://www.google.co.in/images/srpr/logo3w.png" &gt; 
    &lt;/div&gt;

    &lt;div style="color:#0000FF"  id='div_2'&gt;
       &lt;p&gt;This is some text.&lt;/p&gt; 
    &lt;/div&gt;

    &lt;/body&gt;
  &lt;/html&gt;</code>

<code>If you want to display the content of one div over another, you can use the following code :

<html>

<body>

<style>

#div_1

{

position:absolute;

left:0px;

top:0px;

z-index:-1;

}

</style>

</div>

</div>

</body>

</html></code>

How to zoom in and zoom back to normal state : corona SDK

Monday, March 11th, 2013 at 9:16 am

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For this, just do as follows.

1: Create a scaleFactor:

local scale_factor = 0.2;

2: When you want to zoom out, do :

Your_object:scale(scale_factor,scale_factor)

3: When you want to zoom in, do :

Your_object:scale(1/scale_factor,1/scale_factor)

How to selects one of three possible rendering modes for the physics engine: corona SDK

Tuesday, March 5th, 2013 at 11:08 am

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There are types of rendering modes in corona SDK physics engine. The rendering modes are very much useful for the developers. Here I’ll show you how to choose any of these 3 rendering modes.

Code:
physics.setDrawMode( "debug" ) -- It will show collision engine outlines only. physics.setDrawMode( "hybrid" ) -- It overlays collision outlines on normal Corona objects. physics.setDrawMode( "normal" ) -- It is the default Corona renderer, with no collision outlines.
(Note: You can change the mode at any time, if you want)

as simple as that…

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ad view(inmobi): corona SDK

How to detect the direction of an object with physics: Corona SDK

Incoming search terms:

How to renames a file or directory : corona SDK

How to check if the string does not contain any alphabetic characters : PHP

How to change/disable the highlight color of a table cell : Xcode

Incoming search terms:

How to check if an image exists in app bundle or not : XCode

Incoming search terms:

How to draw a line using Quartz 2D : XCode

Incoming search terms:

How to put one div in front of a other : HTML

How to zoom in and zoom back to normal state : corona SDK

How to selects one of three possible rendering modes for the physics engine: corona SDK

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