Android Drag And Drop Example
Android support drag and drop action since sdk version 11. You can drag any view component from source container and drop it to another container ( view component ). This […]
Jerry Zhao
How To Detect Swipe Gesture Direction In Android
This example will tell you how to check and display swipe gesture direction in android application. It also shows how to know user single tap or double tap the android […]
How To Detect Common Android Gestures
We all know that you can use gestures in android app. And there are a lot of common gestures such as tap down, tap up, scroll, double tap, swipe from […]
Android Single And Multiple Touch Event Example
Android provide single and multiple touch support. If you want to response to the touch event, you must create an instance of android.view.View.OnTouchListener and override it’s onTouch(View view, MotionEvent motionEvent) method. Then […]
Android Event Handling Tutorial
Android use event queue to manage events generated by system or device user. When an event occurred ( for example user click a button will trigger on click event ), […]
Android Gridlayout Example Programmatically
android.widget.GridLayout is a layout manager used to arrange child views in grid. You can specify how much columns and rows the grid have use it’s rowCount or columnCount property. You […]
Use Java Code To Create Android UI Example
Create and manage android UI component in java source code can be used in below scenario. When you want to add or remove UI components dynamically by different condition at […]
Android Architecture Components Introduction
Android app runs in android OS, and android OS provide a lot of functions to your app to use. So master android architecture can give you a clear overview of […]
Difference Between Basic Activity And Empty Activity In Android Studio
When you create android project in android studio, there are a lot of activity templates you can choose which provided by android studio. For android beginners, basic activity and empty […]
How To Fix Qemu-System-X86_64.Exe Has Stopped Working Error When Starting AVD
When i start an android virtual device ( avd ) in my new machine ( which i just bought these days.), i meet an error message like below. Qemu-System-X86_64.Exe Has […]