Android

Android button click event listener

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You need to add a button xml in your layout xml file. Below it is <Button android:id=”@+id/sign_in_button” android:layout_width=”456dp” android:layout_height=”72dp” android:layout_centerHorizontal=”true” android:layout_marginTop=”20dp” android:background=”@drawable/sign_in_btn” android:paddingLeft=”32dp” android:paddingRight=”32dp” /> Now you have to add below code […]

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Android / Java

create an Android service

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Today I m going to let you know how to create an Android service through Android app. Lets assume you are developing Android app and you need to start and install a […]

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Android / Java

Consume REST Web Service via Android

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Lets say you have created an activity called LoginActivity.java You need to import Async task to run a web service call. import android.os.AsyncTask; And inside the controller class you need to create […]

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Android

Save/Read data at shared preference in Android

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You will need to save data in shared preference when you are developing android applications. Below example show how to develop that functionality.

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Java

Abstract Class and Abstract methods in Java 01

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Abstract class is also a class which is declared as abstract and this cannot be instantiated like normal java class even though it can be sub classed.

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Java

Default method in interface in java – part 1

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This default method comes to scene when developers need to update existing interface without updating that interface implement classes updating. Default methods must have to have an implementation.  And developer can update […]

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Java

Interfaces in Java – Part 2

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When you define an interface if you make interface public then any class can access it and if you did not use word of public then it will only accessible to classes […]

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