package com.jinyan.TestImage;

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class TestImage extends Activity {
/** Called when the activity is first created. */

private static final String tag = "TestImage.............";

String imageUrl = "https://www.cppentry.com/upload_files/article/54/1_bz7tj__.png";
Bitmap bmImg;
ImageView imView;

Button button1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
imView = (ImageView) findViewById(R.id.imview);
imView.setImageBitmap(returnBitMap(imageUrl));

Bitmap bitmap = returnBitMap(imageUrl);

imView.setImageDrawable(resizeImage(bitmap, 600, 600));
}

public Bitmap returnBitMap(String url) {
URL myFileUrl = null;
Bitmap bitmap = null;
try {
myFileUrl = new URL(url);
} catch (MalformedURLException e) {
e.printStackTrace();
}
try {
HttpURLConnection conn = (HttpURLConnection) myFileUrl
.openConnection();
conn.setDoInput(true);
conn.connect();
InputStream is = conn.getInputStream();
bitmap = BitmapFactory.decodeStream(is);
is.close();
} catch (IOException e) {
e.printStackTrace();
}
Log.v(tag,bitmap.toString());

return bitmap;
}

public static Drawable resizeImage(Bitmap bitmap, int w, int h) {

// load the origial Bitmap
Bitmap BitmapOrg = bitmap;

int width = BitmapOrg.getWidth();
int height = BitmapOrg.getHeight();
int newWidth = w;
int newHeight = h;

Log.v(tag,String.valueOf(width));
Log.v(tag,String.valueOf(height));

Log.v(tag,String.valueOf(newWidth));
Log.v(tag,String.valueOf(newHeight));

// calculate the scale
float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;

// create a matrix for the manipulation
Matrix matrix = new Matrix();
// resize the Bitmap
matrix.postScale(scaleWidth, scaleHeight);
// if you want to rotate the Bitmap
// matrix.postRotate(45);

// recreate the new Bitmap
Bitmap resizedBitmap = Bitmap.createBitmap(BitmapOrg, 0, 0, width,
height, matrix, true);

// make a Drawable from Bitmap to allow to set the Bitmap
// to the ImageView, ImageButton or what ever
return new BitmapDrawable(resizedBitmap);