In this article, we are going to show the GravityView in android. In this article, we are going to see the gravity effect on an image. As we move our phone we will see different parts of the image. Here we will be using Horizontal ScrollView so we will be moving our phone horizontally. In the below video you can visualize how this is happening
Step by Step Implementation
Step 1: Create a new Project
To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. Note that select Java as the programming language.
Step 2: Add this into build.gradle file
implementation 'co.gofynd.library:gravity-view:1.0'
Step 3: Working with the activity_main.xml file
Navigate to the app > res > layout > activity_main.xml and add the below code to that file. Below is the code for the activity_main.xml file.
XML <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <HorizontalScrollView android:layout_width="match_parent" android:layout_height="wrap_content"> <ImageView android:id="@+id/imageView" android:layout_width="match_parent" android:layout_height="wrap_content" /> </HorizontalScrollView> </RelativeLayout>
Step 4: Working with the MainActivity.java file
Go to the MainActivity.java file and refer to the following code. Below is the code for the MainActivity.java file
if(!gravityView.deviceSupported()){ // show the error / imageView Toast.makeText(GravityViewActivity.this,"Not Supported",Toast.LENGTH_LONG).show(); } else { // if device is supported then we will add the image // in imageview and will show the image using gravity view gravityView.setImage(imageView,R.drawable.image).center(); } Below is the code for the MainActivity.java file.
Java import android.os.Bundle; import android.widget.ImageView; import android.widget.Toast; import androidx.appcompat.app.AppCompatActivity; import co.gofynd.gravityview.GravityView; public class MainActivity extends AppCompatActivity { GravityView gravityView; ImageView imageView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); imageView = findViewById(R.id.imageView); gravityView = GravityView.getInstance(this); if (!gravityView.deviceSupported()) { // show the error Toast.makeText(MainActivity.this, "Not Supported", Toast.LENGTH_LONG).show(); } else { // if device is supported then we will add the image // in imageview and will show the image using gravity view gravityView.setImage(imageView, R.drawable.image).center(); } } @Override protected void onStop() { super.onStop(); gravityView.unRegisterListener(); } @Override protected void onResume() { super.onResume(); gravityView.registerListener(); } } Output: