Tag Archives: Quot Quot

How to crop an Image in Android?

This is a sample program that launches the camera and crop the captured image. Check this link to another crop image example. http://www.coderzheaven.com/2011/03/15/crop-an-image-in-android/ This is the layout xml. activity_main.xml Now this is the Main Java File that implements the crop functionality. Here we are using the “com.android.camera.action.CROP” Intent to crop the Image passing the captured Image URI to… Read More »

How to call a function using a String in Android and also pass parameters along with it.

Hi all … Today’s post is all about calling functions using Simple Strings. Here we will do two things. 1. Call a function without parameters. 2. Call a function with parameters. This is the class which contains the functions that we are going to call using “simple Strings”. Now this is the main activity that calls these functions.… Read More »

How to load a spinner with values from SQlite Database in android?

Here is a simple example showing how to load a database values in a spinner in android. OK we will start. This is the layout for the spinner row. spinner_row.xml This is the layout for the interface. activity_main.xml Now this is the MainActivity.java file that uses the spinner and the database. Join the Forum discussion on this post… Read More »

Simplest Lazy Loading ListView Example in Android with data populated from a MySQL database using php.

Hello all… You may have seen many implementations of Lazy Loading ListView. Today I will show you my method to create Lazy Loading ListViews. I dont know whether it can be any more simple than this. In this I am using AsyncTask to download each image. So we will start. Here we have 6 classes. 1. MainPage –… Read More »

How to add a new contact programmatically in android?

We all know how to add a new contact to our android devices without programming right. OK that’s a normal man’s use. But what from a programmer’s view. This is the sample java code that helps you to add contact programatically. After running this programs please switch to contacts application on your device to see the result. Please… Read More »

How to add checkboxes and radio buttons to ListView in android? OR How to set single choice items in a ListView in android?

To create a list of multiple-choice items (checkboxes) or single-choice items (radio buttons) inside the dialog, use the setMultiChoiceItems() and setSingleChoiceItems() methods, respectively. If you create one of these selectable lists in the onCreateDialog() callback method, Android manages the state of the list for you. As long as the Activity is active, the dialog remembers the items that… Read More »

How to download a file from a remote site in android? – Another simple example – Method -3

Hello all ……. I have shown many examples on how to download and upload files in android through this site. These are other methods for downloadign a file in android. 1. How to Download an image in ANDROID programatically? 2. How to download a file to your android device from a remote server with a custom progressbar showing… Read More »

Switch Images in ANDROID.

Hi all …….. Ofter we have trouble with loading continous images in ANDROID from our application directory. The reason is that all resources have a unique resource ID which we need to get to load these resources. The following example shows how to get these unique identifier from the “path” of the resource. For example Here I have… Read More »

How to use Calendar in Android?

Hello all……. In today’s post I will show you how to use Calendar in android. Actually it is really easy to use calendar in android. For that android provides a calendar widget. We use calendar class to show the Calendar widget. Here is the java source code for this example. This is the main.xml for the layout for… Read More »

A Simple Layout with two listViews.

Here is a simple example to show two listviews horizintally in android. here is the java code that sets up the list. Here is the main.xml file. Here is the layout for each row in the list . Here is the complete source code for this example.

CustomAlert without any custom Layout in android.

We can create a dialog with custom alert dialog with our xml in android. But for making simple alerts we can make custom alerts through code itself. Here is a simple function for this. Here I am having a Listview and an edittext with two buttons in the alertBox. Please leave your valuable comments on this post.

Changing the style or theme of default alertDialog in Android.

Hello everyone, Here is a simple example showing how to change the theme of default AlertDialog in android. Check this post before for understanding how to use styles. http://www.coderzheaven.com/2012/04/17/inherit-styles-extend-styles-android/ To start first create a fresh project named AlertTest. In the AlertTestDemo.java file copy this code Now create a file named “styles.xml” inside the res/values folder and copy this… Read More »

How to encrypt a string in Android Using Base64?

Please check the LogCat for output. Join the Forum discussion on this post

Single Selection ListView in android

Hello all….. In today’s post I will show you how to create a single selection list in android. Here is the main.xml Now this line in the java file creates the single choice. setListAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_single_choice, android.R.id.text1, names)); Now this is the full java code

Customizing a spinner in android.

Hello everyone……… You all knew that a spinner or combobox is an inbuilt widget in android. And Like any other widgets spinners are also customizable. Here is a simple example to customize a spinner. First we will look at the java code. The getView method is called for each row in the spinner. So with the help of… Read More »

Customizing a spinner in android.

Hello everyone……… You all knew that a spinner or combobox is an inbuilt widget in android. And Like any other widgets spinners are also customizable. Here is a simple example to customize a spinner. First we will look at the java code. The getView method is called for each row in the spinner. So with the help of… Read More »

Customizing a spinner in android.

Hello everyone……… You all knew that a spinner or combobox is an inbuilt widget in android. And Like any other widgets spinners are also customizable. Here is a simple example to customize a spinner. First we will look at the java code. The getView method is called for each row in the spinner. So with the help of… Read More »

Customizing a spinner in android.

Hello everyone……… You all knew that a spinner or combobox is an inbuilt widget in android. And Like any other widgets spinners are also customizable. Here is a simple example to customize a spinner. First we will look at the java code. The getView method is called for each row in the spinner. So with the help of… Read More »

Customizing a spinner in android.

Hello everyone……… You all knew that a spinner or combobox is an inbuilt widget in android. And Like any other widgets spinners are also customizable. Here is a simple example to customize a spinner. First we will look at the java code. The getView method is called for each row in the spinner. So with the help of… Read More »

Sort elements in a String Array – C Sharp / C#

Hi, In order to sort the elements in a string array in C Sharp/C#, we use the sort() method. Given below is a simple example using sort() method to sort the elements in a string array. It will print out, Sorted string Array: urStringArray[0] = apple urStringArray[1] = coderz urStringArray[2] = heaven123 urStringArray[3] = heaven777 urStringArray[4] = xylo… Read More »

How to use SeekBar in ANDROID?

Here is a simple example to show how to use seek Bar in android. Create a new project and place this code in it. The main.xml file The strings.xml file. Here is another example to show How to get the current progress on your SeekBar in android? Please leave your valuable cmments

Complex JSON String parsing in ANDROID

Hello all….. In the previous post I have shown you how to parse a Simple JSON String in ANDROID. In today’s tutorial I will show you how to parse a complex JSON String. Take a look at the example Here the JSON String used is Now let’s dothe operation……….. Please check the Logcat for the output. Please leave… Read More »

Parsing JSON Object in ANDROID.

JSON are alternative to XML and easy to understand than XML. As other languages Java also supports JSON parsing. Here is a simple example of JSON parsing in ANDROID. This is the JSON String that I am going to parse. And this JSON is same as this xml. Here is the code for this parsing. Please check the… Read More »