Image´s im App vom Server/Internet laden??

1package de.echooff.android.helloworld;
2
3import android.app.Activity;
4import android.graphics.Bitmap;
5import android.os.Bundle;
6import android.widget.ImageView;
7
8public class MainActivity extends Activity {
9 @Override
10 public void onCreate(Bundle savedInstanceState) {
11 super.onCreate(savedInstanceState);
12 setContentView(R.layout.main);
13 ImageView myImageView = (ImageView) findViewById(R.id.myImageView);
14 ImageDownloader imageDownloader = new ImageDownloader();
15 Bitmap bitmap = imageDownloader.downloadImage("http://echooff.de/Logdog82-Android-Forum-Avatar.png");
16 myImageView.setImageBitmap(bitmap);
17 }
18}

1package de.echooff.android.helloworld;
2
3import java.io.IOException;
4import java.io.InputStream;
5import java.net.MalformedURLException;
6import java.net.URL;
7
8import android.graphics.Bitmap;
9import android.graphics.BitmapFactory;
10
11public class ImageDownloader {
12 public Bitmap downloadImage(String downloadUrl) {
13 InputStream inputStream = null;
14 try {
15 URL url = new URL(downloadUrl);
16 inputStream = url.openStream();
17 return BitmapFactory.decodeStream(inputStream);
18 } catch (MalformedURLException e) {
19 e.printStackTrace();
20 } catch (IOException e) {
21 e.printStackTrace();
22 } finally {
23 if (inputStream != null) {
24 try {
25 inputStream.close();
26 } catch (IOException e) {
27 e.printStackTrace();
28 }
29 }
30 }
31 return null;
32 }
33}

1package com.exercise.AndroidWebImage;
2
3import java.io.IOException;
4import java.io.InputStream;
5import java.net.HttpURLConnection;
6import java.net.URL;
7import java.net.URLConnection;
8
9import android.app.Activity;
10import android.graphics.Bitmap;
11import android.graphics.BitmapFactory;
12import android.os.Bundle;
13import android.widget.ImageView;
14
15public class AndroidWebImage extends Activity {
16
17String image_URL=
18 "http://4.bp.blogspot.com/_C5a2qH8Y_jk/StYXDpZ9-WI/AAAAAAAAAJQ/sCgPx6jfWPU/S1600-R/android.png";
19
20 /** Called when the activity is first created. */
21 @Override
22 public void onCreate(Bundle savedInstanceState) {
23 super.onCreate(savedInstanceState);
24 setContentView(R.layout.main);
25
26 ImageView bmImage = (ImageView)findViewById(R.id.image);
27 BitmapFactory.Options bmOptions;
28 bmOptions = new BitmapFactory.Options();
29 bmOptions.inSampleSize = 1;
30 Bitmap bm = LoadImage(image_URL, bmOptions);
31 bmImage.setImageBitmap(bm);
32 }
33
34 private Bitmap LoadImage(String URL, BitmapFactory.Options options)
35 {
36 Bitmap bitmap = null;
37 InputStream in = null;
38 try {
39 in = OpenHttpConnection(URL);
40 bitmap = BitmapFactory.decodeStream(in, null, options);
41 in.close();
42 } catch (IOException e1) {
43 }
44 return bitmap;
45 }
46
47private InputStream OpenHttpConnection(String strURL) throws IOException{
48 InputStream inputStream = null;
49 URL url = new URL(strURL);
50 URLConnection conn = url.openConnection();
51
52 try{
53 HttpURLConnection httpConn = (HttpURLConnection)conn;
54 httpConn.setRequestMethod("GET");
55 httpConn.connect();
56
57 if (httpConn.getResponseCode() == HttpURLConnection.HTTP_OK) {
58 inputStream = httpConn.getInputStream();
59 }
60 }
61 catch (Exception ex)
62 {
63 }
64 return inputStream;
65}
66
67}

1public class laodSomeStuff extends AsyncTask<String, Integer, String> {
2
3 @Override
4 protected String doInBackground(String... params) {
5
6 ImageView myImageView = (ImageView) findViewById(R.id.imageView1);
7 ImageDownloader imageDownloader = new ImageDownloader();
8 Bitmap bitmap = imageDownloader.downloadImage("http://echooff.de/Logdog82-Android-Forum-Avatar.png");
9 myImageView.setImageBitmap(bitmap);
10
11 return null;
12 }
13 }