This Android application load an image from a server using HttpURLConnection and show it in image view when you click load image button.
(I have used image located here http://www.codeincloud.tk/play.png)
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Here is the layout file.
<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="@+id/btn_imgload"
android:layout_width="208dp"
android:layout_height="wrap_content"
android:layout_x="57dp"
android:layout_y="322dp"
android:text="Load Image" />
<ImageView
android:id="@+id/imageview"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_x="131dp"
android:layout_y="179dp" />
</AbsoluteLayout>
This is the java code
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class LoadImageActivity extends Activity {
ImageView image_view;
Button btnLoadImg ;
final static String imageLocation="http://www.codeincloud.tk/play.png"; //Use any image location.
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
image_view = (ImageView)findViewById(R.id.imageview);
btnLoadImg = (Button)findViewById(R.id.btn_imgload);
btnLoadImg.setOnClickListener(loadImage);
}
View.OnClickListener loadImage = new View.OnClickListener(){
public void onClick(View view) {
loadImage(imageLocation);
}
};
Bitmap bitmap;
void loadImage(String image_location){
URL imageURL = null;
try {
imageURL = new URL(image_location);
}
catch (MalformedURLException e) {
e.printStackTrace();
}
try {
HttpURLConnection connection= (HttpURLConnection)imageURL.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream inputStream = connection.getInputStream();
bitmap = BitmapFactory.decodeStream(inputStream);//Convert to bitmap
image_view.setImageBitmap(bitmap);
}
catch (IOException e) {
e.printStackTrace();
}
}
}
Add internet permission to Manifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="tutorial.imageload"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".LoadImageActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>

