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Mobile Development Articles
Page 149 of 156
How to use View Stub in android?
Before getting into example, we should know what is view stub in android. It is a zero-sized lazy inflate view. it going to inflate at runtime. Using inflate() method, it going to inflate at runtime and append to window manager or view group. using setVisibility(int). we can show and hide view stub in android.This example demonstrates how to use view stub in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. ...
Read MoreHow to make a countdown timer in Android?
Before getting into an example, we should know what is a countdown timer in android. Count down timer as simple as we see in watches and mobile phones. we can set count down time after completion of time it will stop and get 0 values.There are four methods are available to use countdown timer as shown below -onTick(long millisUntilFinished ) - In this method we have to pass countdown mill seconds after done countdown it will stop Ticking.onFinish() - After finish ticking, if you want to call any methods or callbacks we can do in onFinish().start() - It is used ...
Read MoreHow to share app data with other applications in android?
In android using implicit intent, we can send data with other applications using ACTION_SEND action. We have to call Intent.createChooser() to open default chooser of android mobile to send the data. it may same or different in Android mobiles.This example demonstrates how to share app data with other applications in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, it contains textview, when user clicks on text view ...
Read MoreHow to use RatingBar in android?
Before getting into an example, we should know what is rating bar in android. Rating bar is a subclass of absSeekbar class in android. It is used to show the rating on view Group or window manager.This example demonstrates how to use the rating bar in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have declared Rating bar and set numStars as 5 means ...
Read MoreHow does Constraint Layout works in android?
In simple words, constraint layout is an advanced version of a Relative layout. It is used to reduce the child view hierarchies and improve the performance.Properties of constraint layout as shown below -Wrap Content –It wrap the view size according to data. Any Size – This is very similar to match parent. Fixed Size – This allows standard height and width(fixed sizes). In the above example we have shown the button with all properties, now look into code level as shown below -In the above, we have declare layout margin-top, bottom, start and end. those are the standard distance (Similar ...
Read MoreHow to develop or migrate apps for iPhone 5 screen resolution?
At the release of iPhone 5, it’s resolution and aspect ratio was different (640 x 1136 pixels), hence it was tough to migrate applications from iPhone 4 sizes to the newer iPhone. But later with the release of iOS 8, size classes and abstract screen sizes were also introduced to make it easier. As of now, applications for almost all sizes can be developed with Xcode storyboard editor.Apart from storyboard editor, you can also change the launch image. Let’s see the first method.Change the launch image to Default-568h@2x.png. Change the size to be 1136x640.Go to info.plist and remove the value ...
Read MoreHow to use Swift to run in background to provide current location?
To get background location in swift we need to go through a few stepsGet the permissions from the user, in your info.plist file add Privacy- Location always andwhen in usage Description, Privacy – When in usage description and add their respective description.After that, you need to import the CoreLocation framework which will enable you to use all the location related libraries and methods. Then you need to get permission from the user to use the location. For that, we need to create a CLLocationManager Object and get authorization.var locationManager: CLLocationManager? override func viewDidLoad() { super.viewDidLoad() ...
Read MoreHow to integrate PayU Money in iOS using swift?
payU money is a payment gateway which is more popular in Indian online markets. To Integrate payU money we need to go through a few steps. Be careful with integrating payU and do not skip any of the steps of integration.Sign Up with payU money.Once you sign up, your key & salt, merchant ID will be generated which can be found in the dashboard after you login to your payU money account.After that in the terminal application, use the below code to clone payU money.Drag and drop the PlugNPlay folder to your project.$ git clone --recursive https://github.com/payu-intrepos/PayUMoney-IOS-SDK.gitNote − If you ...
Read MoreHow to implement Android Pull-to-Refresh?
Before getting into example, we should know what is Pull to refresh layout in android . we can call pull to refresh in android as swipe-to-refresh. when you swipe screen from top to bottom it will do some action based on setOnRefreshListener.This example demonstrate about how to implement android pull to refresh.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code we have given swipeRefreshLayout as parent ...
Read MoreHow to get the absolute coordinates of a view in Android?
Before getting into example, we should know what is absolute coordinates. It means absolute position (x, y)of a view on window manager. This example demonstrate about how to get the absolute coordinates of a view.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above xml, we have given one Textview. when user click on textview, it will show the position of the view on Toast.Step 3 − Add the following ...
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