Build A Professional Application

Welcome to our new tutorial on Android Studio . On this tutorial we are going to build an application with all features and every thing integrated like splash screen , notification system , in-build update checker , custom off-line notification , etc ...

• Set up android studio in your windows and linux computers

Watch the video and follow me :

• Build a new Android Studio Project .
• I am using the package name as com.techmobs.app here you can change it to any other name that you like , but be care full while copy pasting the codes don't make the package name on each files wrong be sure that you use the same package name every where .
• Choose the Navigation Drawer Activity .
• After gradle build up we can move on to the AndroidManifest.xml file
• Open AndroidManifest.xml file and select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Now move on to the MainActivity.java file .
• Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Open Projects .
  
  
  
  
• Download the volley.jar file , copy and paste it in the libs folder .
• Left click on the volley.jar file and select Add as Library option and click ok . Now the gradle will build and after that you need to go back to Android .
• Create a new java class with name UpdateDialog .
• Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Create another java class with name UpdateService .
• Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Now we need to add an assets folder , left click on the app , then select new , then select folder , then select Assets Folder and click Finish .
  
• Now create a file in the assets , left click then select new then File .
• Name the file update.html , paste the following codes in the file .
• We  need to add a new activity , again at app left click and select new then select Activity then Empty Activity .
• Name the activity as splash , then the layout name automatically becomes activity_splash .
  
• Now we will get to files splash.java and activity_splash.xml .
• Open splash.java file . Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Open res , layout , activity_splash.xml . Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Now the activity_main.xml file . Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Open app_bar_main.xml file . Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Open content_main.xml file . Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Open nav_header_main.xml file . Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Open the res , menu folder , activity_main_drawer.xml file . Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
•  Open main.xml file . Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Now open the folder res , values , colors.xml file . Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Open styles.xml file . Select the entire codes and replace it with the code bellow . Don't make package name error , be careful .
• Now go through the java parts again to change the links , name , email , etc 
• First of all the MainActivity.java file , open it and replace the website urls with your website url . Watch video for more clarification .
• Like that the splash.java file replace the facebook , google+ , twitter links .
• Now the UpdateService.java "https://vishnutechmobs.github.io/update-link.html" this is the link link which is checked when the application opens . The content in line

boolean resp = response.contains("1.0"); is compared that here is 1.0 . 

My link is a github page i prefer you to use github for this and when the contents in the link and the line are same no update will appear but if the any one value changes then the update dialog box comes .

The update dialog box is file:///android_asset/update.html which is the update.html file that we created in the Assets folder . You can edit it and keep your name instead of my name .

Now UpdateDialog.java , If update box appears then we go to this link if we click Download "https://vishnutechmobs.github.io/update.html" , change it with a link that can be updated link a blog post etc ... Download my 2 test applications and check them then you will understand .

If you guys don't want update checker just don't add the UpdateDialog.java and UpdateService.java file and remove this line from MainAvtivity.java .

 

Intent intent =newIntent(MainActivity.this,UpdateService.class)
startService(intent);

• Now watch the video and clarify if more doubts are there .
• Build your apk and then you will get your application .

• Set up android studio in your windows and linux computers