Signing Identities and Certificates in iOS

Introduction:
When we start off as an iOS Developer, we all face a common obstacle ,that is generating the certificates and using it in our apps because Apple does not allow us to debug or run our app without Certificate. So we need an Apple Developer Certificates to develop ,debug and run.

Description:
In order to know the types and procedure to use it, first we need to have an understanding of code signing and why it is needed. So lets start with it.

Code signing our app is necessary because due to this only users trust that our app has been created by a source known to Apple. All iOS apps must be code signed and provisioned to launch on a device or to be distributed for testing, or to be submitted to the store. Continue reading

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Using PhoneGap notification API to display customized alert

Introduction: In each and every mobile application we need to display customize message to user and the message should be well formatted and well designed. As we know PhoneGap application is based on JavaScript , we normally use JavaScript to display the message. But PhoneGap provides the mechanism to display well formatted message using Notification API.

 Description: As PhoneGap supports JavaScript we can use the JavaScript to show the alert but that alert will not look good in mobile devices.The alert will display with the page name as alert header. Continue reading

Detecting current postion of mobile devices using PhoneGap Geolocation API

Introduction: Geolocation is the property by which we can detect the current position of the device using latitude and longitude. We can get the location by invoking GPS(Global Positioning System) and the location obtain from network signals such as IP address, WiFi and mobile networks. PhoneGap provides the geolocation API which can be used to detect the device position by invoking the GPS. So with out using any native plugin, we can get the device geolocation simply using JavaScript.

Description: PhoneGap Geolocation API is basically based upon the W3C Geolocation API and it follows the same specification that W3C Geolocation does to detect the device latitude and longitude. So after integrating the Geolocation API, when we run the application in device it will ask for the user permission in iOS devices as per the privacy guidelines. If we cancel the permission then the app will not be able to obtain the geolocation.

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Creating PhoneGap Android application using version 3.0.

Introduction: Previously PhoneGap was providing total package as a single version which contains all the necessary files for each platform. We are downloading the zip as a version and integrating the required files inside our Android application. It was working same till version 2.9 but from version 3.0 onwards the scenario is little different.

Description: From 3.0 onwards PhoneGap is not providing the zip file to download and integrate the same with our application. Now it is giving the install option, so we can directly install the PhoneGap into our system and use the same to create the application. Here we will focus on creating the Android application using version 3.0.

To install the PhoneGap we need some dependencies which will help PhoneGap to work properly. Continue reading

Hiding status bar while displaying splash screen in PhoneGap iOS application

Introduction: Most of the iOS application starts with the splash screen with the spinner which makes the sense that application is loading it’s required files and resources. But if you focus on the screen, you will find that while showing the splash screen, some part of the splash screen is hidden by the status bar.

Description: If we want to hide the status bar while showing the splash screen, it is very easy and we can view the splash screen completely by ignoring the staus bar above it.

Here is the the simple technique bellow.

1. Open Xcode and click on the project in Project Navigator.

2. In the target panel select the project and it will open the project details.

3. Choose the general tab form the list and we can find the Development Info panel in the list. And in Development Info there will be an option for Status Bar Style.

4. Then we need to tick the check box for “Hide during application launch”. Continue reading

Xcode 4.5 error – Timed out waiting for app to launch

Sometime we usually face the problems for launching the app directly from latest Xcode.
During the time of debugging we often encounter ‘Time Out ‘error. To fix the issue many people tried it in various ways. As an IOS developer I have also faced the same issue while launching app form Xcode box. Xcode shows me that message as “Could not launch “appname”. Timed out for the app to launch”.

I just figured out what exactly the problem with latest Xcode devises, and followed the following method to overcome it ……

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