Android Articles

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How to add first element in android ConcurrentLinkedDeque?

karthikeya Boyini
karthikeya Boyini
Updated on 30-Jun-2020 183 Views

Before getting into example, we should know what ConcurrentLinkedDequeis, it is unbounded deque based on linked nodes. Multiple threads can access deque elements with safety.This example demonstrate about How to add first element in android ConcurrentLinkedDequeStep 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 text view to showConcurrentLinkedDequeelements.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import ...

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How to add element based on index in android CopyOnWriteArrayList?

Samual Sam
Samual Sam
Updated on 30-Jun-2020 146 Views

Before getting into example, we should know what CopyOnWriteArrayListis. It is a thread-safe variant of ArrayListand operations add, set, and so on by making a fresh copy of the underlying array.This example demonstrate about How to add element based on index in android CopyOnWriteArrayListStep 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 text view to showCopyOnWriteArrayListelements.Step 3 − Add the following code to src/MainActivity.javapackage ...

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What are intent-filters in Android?

George John
George John
Updated on 30-Jun-2020 5K+ Views

An intent filter is an instance of the IntentFilter class. Intent filters are helpful while using implicit intents, It is not going to handle in java code, we have to set it up in AndroidManifest.xml. Android must know what kind of intent it is launching so intent filters give the information to android about intent and actions.Before launching intent, android going to do action test, category test and data test. This example demonstrate about how to use intent filters in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required ...

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Get current time and date on Android

Ankith Reddy
Ankith Reddy
Updated on 30-Jun-2020 10K+ Views

As per Oracle documentation, SimpleDateFormat is a concrete class for formatting and parsing dates in a locale-sensitive manner. In this example, we have imported simple date format class from java as shown below -import java.text.SimpleDateFormat; import java.util.Date;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 text view, it going to print the current date on the window manager.Step 3 − Add the following code to ...

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How to remove duplications from arraylist for listview in Android?

karthikeya Boyini
karthikeya Boyini
Updated on 29-Jun-2020 228 Views

This example demonstrate about How to remove duplications from arraylist for listview in AndroidStep 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 name as Edit text, when user click on save button it will store the data into arraylist. Click on refresh button to get the changes of listview.Step 3 − Add ...

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How to insert element to linked list for listview in Android?

Samual Sam
Samual Sam
Updated on 29-Jun-2020 425 Views

This example demonstrate about How to insert element to linked list for listview in AndroidStep 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 name as Edit text, when user click on save button it will store the data into array list. Click on refresh button to get the changes of listview.Step ...

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How to insert element to arraylist for listview in Android?

karthikeya Boyini
karthikeya Boyini
Updated on 29-Jun-2020 3K+ Views

This example demonstrate about How to insert element to arraylist for listview in AndroidStep 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 name as Edit text, when user click on save button it will store the data into arraylist. Click on refresh button to get the changes of listview.Step 3 − Add ...

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How to delete all elements from linked list for listview in Android?

Samual Sam
Samual Sam
Updated on 29-Jun-2020 190 Views

This example demonstrate about How to delete all elements from linked list for listview in AndroidStep 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 name as Edit text, when user click on save button it will store the data into arraylist. Click on ...

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How to delete all elements from arraylist for listview in Android?

karthikeya Boyini
karthikeya Boyini
Updated on 29-Jun-2020 2K+ Views

This example demonstrate about How to delete all elements from arraylist for listview in AndroidStep 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 name as Edit text, when user click on save button it will store the data into arraylist. Click on delete ...

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How to use thread.sleep() in android?

Nishtha Thakur
Nishtha Thakur
Updated on 29-Jun-2020 5K+ Views

Before getting into an example, we should know what thread is. A thread is a lightweight sub-process, it going to do background operations without interrupt to ui. This example demonstrate about How to use thread.sleep() 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 edittext and textview. When user enter some text into edittext, it going to wait till 5000ms ...

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