When you add a new dependency library in the android project, you may find it need a higher android SDK level such as version 27 or higher to compile and run. So you should change the project SDK version to fit the needs in such case.

This article will show you how to copy data to android system clipboard and how to paste android system clipboard data to target text view. 1. Copy Data To System Clipboard Steps. Get system android.content.ClipboardManager object. final android.content.ClipboardManager clipboardManager = (ClipboardManager)getSystemService(CLIPBOARD_SERVICE); Create a android.content.ClipData object and set source data in it ClipData clipData = ClipData.newPlainText(“Source Text”,

When your android application grows, there are a lot of util classes. And sometimes you need to use android application context in those classes to do something like create a Toast message or create a Snackbar popup. And if you pass the application context object as an input parameter to every util class, you will

This example will show you how to make an android floating action button hide and show when the user scrolls a recycler view. android.support.design.widget.FloatingActionButton class is used to implement the floating action button. It is supported by the android material design support library, so before starting, make sure you have added the below dependence library

This example will tell you how to use org.json.JSONObject and com.google.gson.Gson to parse JSON format string read from a URL page.

This example will show you how to use OkHttp3 to send get or post HTTP request to a web server and how to parse and display response text in an Android TextView.

In the previous article we have introduced how to use the android VideoView widget to play, pause, continue, stop and replay video files in android. But when you use VideoView‘s method seekto to make the video play from a particular position, you will find the video playing is inconsistent. Sometimes it starts from the beginning.

This article will give you an example of how to create android contact programmatically and how to insert each android contact field into the contact data table. When clicking the add contact button, it will generate one contact and insert it into android contact tables.

Android storage can be divided into two types, internal storage, and external storage. This article will introduce both internal and external storage and how to use them to save files in your android application.

Android data can be saved in internal storage ( ROM ), external storage(SD card), shared preferences, or SQLite database. This article will introduce how to read and write data in internal storage via a java file.