Android Tutorial

Toolbar Toolbar is used in our application as an app bar providing useful information to the user. From API level  11 ActionBar had been used as default app bar. But with newer versions and newer features ActionBar looks and behaves differently on devices depending on the version of the android it is using . So Toolbar is introduced in Android Support library to provide consistent look and behavior to our application for a wide range of devices . Toolbar is supported from API level 7 . In our application we should use   android.support.v7.widget.Toolbar     This is a simple application using  Toolbar.  Screenshots of the application are the following .  Toolbar contains Navigation icon, Title, SubTitle and 5 menu items, on clicking any menu item a Toast will show up with menu item name.                   You can download the full project from the following drive link https://drive....

If  you connect multiple Devices or Emulators to Android Studio and Run Application. Application will only run on the first run device.  It will not ask to select connected device. ie, 1. If you connect one Device or Emulator 2. Run a project on the device or Emulator 3. Connect another Device or start another Emulator 4. Try to run project on new device 5. It will only run on first device  . will not ask to select Connected Device or Emulators 6. Select Deployment Target Dialog box will not show. If this Problem occurs to you while Developing on android Studio .  First thing to do is to Stop Application after running on the first device This can be done by clicking Stop app icon which is left of the AVD manger icon. Or by using Keyboard shortcut CTRL+F2 Now if you Run the project , Select Deployment Target Dialog box will pop up. You can select another Device or emulator from the list If still Select Deployment Target window not showing up an...

The best way to create a database application in android is , using an exteranal database . ie, we can create database  using tools like N avicat  , SQLite Browser  and copy this database into our application .This  method is more flexible and easy than creating a database in our application . This is a simple application using external database file.Application will insert data into database and show data from the database in a customized list view.  Screenshots of this application are MainActivity This is the first activity of this application . When  Register Here button is pressed it will start Registration Activity Editing of the entries can be done with a Long Click on the listView items. you can download the source code of this project from  google drive  https://drive.google.com/folderview?id=0BySLpWhqmbbdY3JHMkZRZFN0bEE&usp=sharing click on the above link ->sign into  your  google account ->a...

This  is a simple application Demonstrating Swipe or onFling() event on ListView. you can download the source code of this project from  google drive   https://drive.google.com/folderview?id=0BySLpWhqmbbdSVB4M0hXb0VxcU0&usp=sharing click on the above link ->sign into  your  google account ->add this to your google drive -> open it in google drive and download it. 1. Following is the MainActivity (DemoSwipe.java) of the application package com.arun.demolistviewswipe; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.view.GestureDetector; import android.view.GestureDetector.SimpleOnGestureListener; import android.view.Menu; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.Toast; public class DemoSwipe extends Activity { ListView lvCountry; Strin...

following is a simple applicaton to create ListView using  Custom adapter.screenshot of the application  is like this . ListView is not used in android Anymore . We use  RecyclerView  and  CardView   in Android RecyclerView Demo is available on the following link http://androidtuts4u.blogspot.in/2017/04/android-recyclerview-example.html RecyclerView with Cardview Example is available on the following link http://androidtuts4u.blogspot.in/2017/09/android-card-view-example.html The ListView below the submit button is populated using Custom Adapter.Data is stored and retrieved using SQLite databsase. you can download the source code of this project from  google drive   https://drive.google.com/folderview?id=0BySLpWhqmbbdUXE5aTNhazludjQ&usp=sharing click on the above link ->sign into  your  google account ->add this to your google drive -> open it in google drive and download it. To create a simple ...

The sharedPreferernce  provides a general framework that allows you to save and retrieve persistent key-value pairs of primitive data types. You can use sharedPreferences   to save any primitive data: booleans, floats, ints, longs, and strings. This data will persist across user sessions (even if your application is killed). to know more about   Refer   sharedPreference you can download the source code of this project from  google drive  https://drive.google.com/folderview?id=0BySLpWhqmbbdRXZxd0ZveHllcG8&usp=sharing click on the above link ->sign into  your  google account ->add this to your google drive -> open it in google drive and download it. Following is the demo application using SharedPrefence. This application is just used to set and get name.Value that you set will be persistent even if you close the application. the value is saved in a xml file. you can view this file in eclipse . open  DDMS go to ...

This is simple application which insert data into Sqlite database --and shows the data  from the database in a ListView ListView is not used in android Anymore . We use RecyclerView and CardView   in Android RecyclerView Demo is available on the following link http://androidtuts4u.blogspot.in/2017/04/android-recyclerview-example.html RecyclerView with CardView Demo is available on the following link http://androidtuts4u.blogspot.in/2017/09/android-card-view-example.html This  is the first Activity of application which shows data from database in listview. Register here buton will start a Registration Activity. Submit button will add data to database and show it in the ListView of MainActivity. Update can be performed by clicking ListView items.     you can download the source code of this project from  google drive   https://drive.google.com/folderview?id=0BySLpWhqmbbdS0dtT1R2TXdBWEE&usp=sharing click on the abov...