Tag Archives: LayoutParams

Bluetooth Demo in Android – Listing paired Devies, Find other Online BT devices, Connect to a BT Device, Communicate between connected BT Devices ( Chat ).

In this Demo we will see Check compatibility of the device. Turn On/Off Bluetooth, Making it discoverable List Paired Devies. Check for Online Bluetooth Devices. Connect with a Device. Communicate between Connected Bluetooth Devices. Disconnect from Device. You can download the complete Android Studio Source code at the end of the post. Before We start with the coding,… Read More »

How to create a List with Alphabet Overlay in Android

Hello everyone… Today’s post is about simply loading the ListView with some alphabetically sorted data BUT with the first alphabet overlay over them when you scroll. It’s same as the overlay you see when a user scrolls through the contacts application. SO Let’s start with the code. At first I will create a class that holds the array… Read More »

Multiple Selection GridView in Android

This is a simple post that helps you to do multiple selection in a ListView. Check out previous posts for 3D animation in a Listview. At first we will see the XML layout file. This layout contains a gridview since we are dealing with it only. grid_1.xml Now the MainActivity that does all the work for the multiple… Read More »

How to override hardware Home button in android? OR How to listen to home button click in android?

Hello everyone… In this post I will show you how to listen to hardware button in an android smartphone. This post especially shows how to listen to the home button in android. But my advice is never override the home button in your app. Home button is to move the currently running process to background. But you can… Read More »

How to place layouts one over another in android using addContentView()?

Hello all… In today’s tutorial I will show you how to add different layouts one over another in android through java code. For this we use the function addContentView() which is a variation on setContentView(View, android.view.ViewGroup.LayoutParams) to add an additional content view to the screen. Here I will create an xml with a textView and a Edittext and… Read More »

How to create a custom layout for your camera in Android?

Hello everyone, Today’s example shows how to create a custom layout for your camera preview, that is if you want a custom layout while your camera is opening. This example helps you to achieve this. First create a fresh project and name it CameraCustomLayout and copy this code to CameraCustomLayout.java file. After that create an xml file named… Read More »

Using Gestures in ANDROID,A Simple example.

This is a really simple example illustrating gestures in ANDROID. You Know that everything you do with your hand inside the phone is a gesture like SingleTap, doubleTap etc. Here is a quick illustration of this. For this the activity must implement OnGestureListener. The GestureDetector detects the gestures. Let’s look at the example. The layout file main.xml for… Read More »