Android Tutorial

We all know that we can set text on the android.widget.Button. But we can add images to the android.widget.Button also. We can even specify the location of the image relative to the text on the button, such as on top, bottom, left, and right to the text. This article will show you an example of […]

This example will tell you how to set the android.widget.TextView text foreground color and background color in source code. For other android UI components, it is similar to change foreground and background color like this.

This example will tell you how to display Html text in the android.widget.TextView and android.webkit.WebView object. 1. Display Html Data In Android TextView And WebView Example. If you can not watch the above video, you can see it on the youtube URL https://youtu.be/gUisxpEm908. There are three buttons on the screen in this example. When you

This example will tell you how to open a popup alert dialog when the user clicks a floating action button, and after the user inputs the user name in the dialog, it will save the user name in the list view on the main screen. If the user name exists, it will popup a message

This example will show you how to create a popup dialog with user input controls when the user clicks a button in the main activity screen. The popup dialog customizes the android.support.v7.app.AlertDialog class.

The android.widget.Button is a frequently used widget in the android application. You can add as many buttons as you need in a layout view object. But how to listen and respond to the click event when the user clicks the buttons? This example will tell you how.

Pinch zoom ( in or out ) is an often-used gesture in android applications. It is very user-friendly and smooth to display something bigger or smaller to watch. This example will show you how to implement pinch zoom on an image in the android application.

In some cases, you may want to capture custom-defined gestures in your android application. And at the same time, you may also want to detect general gestures ( such as double-tap, long press, scroll, etc) on the special view component. This article will tell you how to combine custom-defined gestures and general gestures together in

Android support drag and drop action since SDK version 11. You can drag any view component from the source container and drop it to another container ( view component ). This example will show you how to implement drag and drop action in android.