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How to download image from url in Android

This example demonstrates how do I download image from url in android.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2 − Add the following code to res/layout/activity_main.xml.

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

   android:layout_width="match_parent"

   android:layout_height="match_parent" >

   <ImageView

      android:id="@+id/image"

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"

      android:layout_centerHorizontal="true"

      android:layout_centerVertical="true">

   </ImageView>

   <Button

      android:id="@+id/button"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content"

      android:layout_below="@+id/image"

      android:layout_centerHorizontal="true"

      android:layout_centerVertical="true"

      android:text="@string/button" />

</RelativeLayout>

Step 3 − Add the following code to src/MainActivity.java

public class MainActivity extends AppCompatActivity {

   String url = "https://images.pexels.com/photos/1226302/pexels-photo1226302.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500";

   ImageView image;

   Button button;

   ProgressDialog mProgressDialog;

   @Override

   public void onCreate(Bundle savedInstanceState) {

      super.onCreate(savedInstanceState);

      setContentView(R.layout.activity_main);

      image = (ImageView) findViewById(R.id.image);

      button = findViewById(R.id.button);

      button.setOnClickListener(new View.OnClickListener() {

         @Override

         public void onClick(View v) {

            new DownloadImage().execute(url);

         }

      });

   }

   private class DownloadImage extends AsyncTask {

      @Override

      protected void onPreExecute() {

         super.onPreExecute();

         mProgressDialog = new ProgressDialog(MainActivity.this);

         mProgressDialog.setTitle("Download Image Tutorial");

         mProgressDialog.setMessage("Loading...");

         mProgressDialog.setIndeterminate(false);

         mProgressDialog.show();

      }

      @Override

      protected Bitmap doInBackground(String... URL) {

         String imageURL = URL[0];

         Bitmap bitmap = null;

         try {

            // Download Image from URL

            InputStream input = new java.net.URL(imageURL).openStream();

            // Decode Bitmap

            bitmap = BitmapFactory.decodeStream(input);

         } catch (Exception e) {

            e.printStackTrace();

         }

         return bitmap;

      }

      @Override

      protected void onPostExecute(Bitmap result) {

         // Set the bitmap into ImageView

         image.setImageBitmap(result);

         // Close progressdialog

         mProgressDialog.dismiss();

      }

   }

}

Step 4 − Open resources -> string.xml and add the following code −

<resources>

   <string name="app_name">Sample</string>

   <string name="menu_settings">Settings</string>

   <string name="button">Download Image</string>

</resources>

Step 5 − Add the following code to androidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.sample">

   <uses-permission android:name="android.permission.INTERNET" ></uses-permission>

   <application

      android:allowBackup="true"

      android:icon="@mipmap/ic_launcher"

      android:label="@string/app_name"

      android:roundIcon="@mipmap/ic_launcher_round"

      android:supportsRtl="true"

      android:theme="@style/AppTheme">

      <activity android:name=".MainActivity">

         <intent-filter>

            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />

         </intent-filter>

      </activity>

   </application>

</manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run  icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen

That's the articleHow to download image from url in Android

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