Google Maps example
With this example we are going to demonstrate how to use Google maps on Android. Note that in order to use Google Maps, the Google APIs have to be present in your SDK. In case they are not already installed, you will have to manually install them. This is accomplished by using the Android SDK and AVD Manager. So, in order to use Google maps, the following steps ...
JSON parsing with Gson
This is an example of JSON parsing on Android with Gson. Google Gson is a Java library that can be used to convert Java Objects into their JSON representation. In order to parse JSON with Gson, follow these steps:Create a class that extends Activity (here called JsonParsingActivity) Create an instance of the Gson class Use the DefaultHttpClient to retrieve ...
Prefernces and PreferenceActivity example
In this example we shall show you how to use Preferences with Android. This functionality is used for storing user’s preferences and using them for example when the application starts. For using the Preferences framework the following steps must be followed:Create a class that extends PreferenceActivity (here called QuickPrefsActivity) Use the addPreferencesFromResource ...
Location Based Services Application
With this example we are going to create a location based services application for Android. Location Based Services are quite popular on mobiles nowadays. To create a location based services application one should perform the following steps:Create an Android Activity (here called LbsGeocodingActivity) Get reference of the LocationManager system service Use ...
Encrypt/Decrypt file/stream with DES
This is an example of how to encrypt or decrypt a file or stream with DES. DES in computing refers to the Data Encryption Standard and is supported by Java. To encrypt or decrypt a file or stream with DES one should perform the following steps:Get an instance of a KeyGenerator with DES as algorithm Generate a key (SecretKey) with the generator Use CipherOutputStream ...
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Android Contacts Example
Build Android application package file (APK) using Eclipse IDE
Android ActionBar Example
Android Intent Example
Android ProgressDialog Example
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Android SQLite Example
Android ExpandableListview Example
Android SharedPreferences Example
Android Thread Example
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