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Mobile Development Articles
Page 151 of 156
How to create scrollable TextView on iOS App?
To create a scrollable TextView in iOS we can do it in two ways, one by creating it using the storyboard and other by creating another textView programmatically.A text view is scrollable by default if it has text more than the height of textView and the scrollable property is disabled.1.Using storyboardGo to storyboard and from the object library drag a textView to your view.Now in the text view if the text is more than it’s height than it will be scrollable by default, otherwise it will not be scrollable.Give height constraint along with remaining required constraint.Make sure that scrolling enabled ...
Read MoreHow to create multiple styles inside a TextView on iOS App?
To create multiple styles inside a textview we need to use attributed string. The text view in ios has a property attributedText which can be used to style the text inside a text view. We’ll see this with help of an example.First, we’ll create an attributelet attributeOne : [NSAttributedString.Key : Any] = [NSAttributedString.Key(rawValue: NSAttributedString.Key.font.rawValue) : UIFont.systemFont(ofSize: 16.0), NSAttributedString.Key(rawValue: NSAttributedString.Key.foregroundColor.rawValue) : UIColor.blue]Then we’ll create an attributed string with the attribute we createdlet string = NSAttributedString(string: "Text for first Attribute", attributes: attributeOne)Similarly, we’ll create another string with different attribute. Then we’ll initialize the text of textView with the attributed string.Now the whole ...
Read MoreHow to detect swipe vertically on a ScrollView using Swift?
To detect swipe in scrollView we will need to make use of some tricks as scroll view does not natively give the directions of scroll made on it. We’ll see this with help of an example.Create an empty project, add scroll view to the view as per your requirement.Give them constraint as required in the application.From the object library, drag and drop a swipe gesture recognizer right above the Scroll View.Select the gesture recognizer, go to its attribute inspector and from there, select the swipe option and set the value as “up”.When you do this, now your gesture recognizer can ...
Read MoreHow to add a Submit button after the end of the tableview using Swift?
To add a submit button at the end of a table view, we can make use of table view footers. Let’s see this with help of an example where we’ll add a footer view to our table, and inside the table, we will add code for adding button at the bottom of the table view.Create a new project first, then inside the view controller add the following code which will initialize the table, add a section and a few rows to the table.func initTableView() { let tableView = UITableView() tableView.frame = self.view.frame tableView.dataSource = self tableView.delegate ...
Read MoreHow to Dynamically Add Views into View in Android?
This example demonstrates How to Dynamically Add Views into 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 code, we have taken an empty layout. In this layout, we will have dynamic text view.package com.example.andy.myapplication; import android.graphics.Bitmap; import android.graphics.Matrix; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.view.LayoutInflater; import android.view.View; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; public class MainActivity extends AppCompatActivity { int view = R.layout.activity_main; ...
Read MoreHow do I make a dotted/dashed line in Android?
This example demonstrates how do I make a dotted/dashed line 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 text view with image view. Image view contains a dotted background. So create dotted.xml in drawable as shown below - Step 3 - Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import ...
Read MoreHow to change position of Toast in Android?
Before getting into an example, we should know what is toast in android. Toast is subclass for java.lang.Object and used to show a short message for a short period of time after that is going to disappear.This example demonstrates how to change the position of Toast 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 taken a text view. when the user clicks on text ...
Read MoreHow to get battery level and state in Android?
This example demonstrates how to get battery level and state 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 taken a text view. it contains battery percentage.Step 3 - Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.os.BatteryManager; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; public class MainActivity extends AppCompatActivity { int view = R.layout.activity_main; TextView text; @RequiresApi(api = ...
Read MoreHow to make back button twice to close an activity in Android?
Sometimes we click back button unintentionally, When you click on a back button it will close your application or will go back to another activity. To avoid this problem, This example demonstrates how to make back button twice to close an activity.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. Step 3 - Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.app.ActivityManager; import android.content.Context; import android.content.Intent; import android.os.Build; import android.os.Bundle; import android.os.VibrationEffect; ...
Read MoreHow to remove shadow below action bar in Android?
By default, android provides shadow for action bar. This example demonstrates How to remove shadow below the action bar.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. Step 3 - Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; public class MainActivity extends AppCompatActivity { int view = R.layout.activity_main; TextView text; @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN) @Override protected void onCreate(Bundle savedInstanceState) ...
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