Android Listview Bilder per Url

1package de.Tab;
2
3import java.io.File;
4import java.io.FileOutputStream;
5import java.io.InputStream;
6import java.net.URL;
7import java.util.ArrayList;
8import java.util.HashMap;
9import java.util.Map;
10
11import android.app.Activity;
12import android.graphics.drawable.Drawable;
13import android.os.Bundle;
14import android.widget.ListView;
15import android.widget.SimpleAdapter;
16
17public class mamaActivity extends Activity {
18 private ListView lv_main;
19 String [] lv_arr_id;
20 private Map<String, Drawable> map;
21
22 @Override
23 public void onCreate(Bundle savedInstanceState) {
24 super.onCreate(savedInstanceState);
25 setContentView(R.layout.main);
26
27 lv_main = (ListView) findViewById(R.id.countries);
28
29 ArrayList<HashMap<String, String>> listItem = new ArrayList<HashMap<String, String>>();
30 HashMap<String,String> map;
31
32
33
34 map = new HashMap<String, String>();
35 map.put("title", "2nd title");
36 map.put("details", "more details");
37 map.put("cover", String.valueOf(mamaActivity.this.LoadImageFromWebOperations("http://www.google.com/images/srpr/nav_logo37.png")));
38
39
40
41
42
43
44
45
46
47
48
49
50 map = new HashMap<String, String>();
51 map.put("title", "2nd title");
52 map.put("details", "more details");
53 map.put("cover", LoadImageFromWebOperations("http://www.google.com/images/srpr/nav_logo37.png"));
54 listItem.add(map);
55
56 SimpleAdapter mSchedule = new SimpleAdapter (this.getBaseContext(), listItem, R.layout.listbox,
57 new String[] {"cover", "title", "details"}, new int[] {R.id.text1, R.id.text2, R.id.img});
58
59 lv_main.setAdapter(mSchedule);
60 }
61
62
63
64 public static String loadImageFromWebOperations(String url, String path) {
65 try { InputStream is = (InputStream) new URL(url).getContent();
66 System.out.println(path); File f = new File(path);
67 f.createNewFile(); FileOutputStream fos = new FileOutputStream(f);
68 try { byte[] b = new byte[100]; int l = 0;
69 while ((l = is.read(b)) != -1) fos.write(b, 0, l);
70 } catch (Exception e) { } return f.getAbsolutePath();
71 } catch (Exception e) { System.out.println("Exc=" + e);
72 return null; }}
73 }

1package de.Tab;
2
3import java.io.File;
4import java.io.FileOutputStream;
5import java.io.InputStream;
6import java.net.URL;
7import java.util.ArrayList;
8import java.util.HashMap;
9
10import android.app.Activity;
11import android.os.Bundle;
12import android.widget.ListView;
13import android.widget.SimpleAdapter;
14
15public class mamaActivity extends Activity {
16 private ListView lv_main;
17 String [] lv_arr_id;
18
19 @Override
20 public void onCreate(Bundle savedInstanceState) {
21 super.onCreate(savedInstanceState);
22 setContentView(R.layout.main);
23
24 lv_main = (ListView) findViewById(R.id.countries);
25
26 ArrayList<HashMap<String, String>> listItem = new ArrayList<HashMap<String, String>>();
27 HashMap<String,String> map;
28
29
30 map = new HashMap<String, String>();
31 map.put("title", "2nd title");
32 map.put("details", "more details");
33 map.put("cover", "more details");
34 map.put("cover", LoadImageFromWebOperations("http://www.google.com/images/srpr/nav_logo37.png"));
35 listItem.add(map);
36
37 map = new HashMap<String, String>();
38 map.put("title", "2nd title");
39 map.put("details", "more details");
40 map.put("cover", "more details");
41 map.put("cover", LoadImageFromWebOperations("http://www.google.com/images/srpr/nav_logo37.png"));
42 listItem.add(map);
43
44 SimpleAdapter mSchedule = new SimpleAdapter (this.getApplicationContext(), listItem, R.layout.listbox,
45 new String[] {"title", "details", "cover"}, new int[] {R.id.text1, R.id.text2, R.id.img});
46
47 lv_main.setAdapter(mSchedule);
48 }
49
50
51
52 public static String loadImageFromWebOperations(String url, String path) {
53
54 try {
55
56 InputStream is = (InputStream) new URL(url).getContent();
57 System.out.println(path);
58 File f = new File(path);
59 f.createNewFile();
60 FileOutputStream fos = new FileOutputStream(f);
61
62 try {
63
64 byte[] b = new byte[100];
65 int l = 0;
66
67 while ((l = is.read(b)) != -1)
68 fos.write(b, 0, l);
69
70 } catch (Exception e) {
71
72 } return f.getAbsolutePath();
73 } catch (Exception e) {
74 System.out.println("Exc=" + e);
75 return null; }
76 }
77 }

1<?xml version="1.0" encoding="utf-8"?>
2<LinearLayout
3 xmlns:android="http://schemas.android.com/apk/res/android"
4 android:layout_width="wrap_content"
5 android:orientation="horizontal"
6 android:layout_height="wrap_content">
7 <LinearLayout
8 android:layout_width="240dip"
9 android:orientation="vertical"
10 android:layout_height="wrap_content">
11 <TextView android:layout_width="fill_parent"
12 android:layout_height="wrap_content"
13 android:id="@+id/text1"
14 android:textSize="25dip"
15 android:text="This is text1"/>
16 <TextView android:layout_width="fill_parent"
17 android:layout_height="wrap_content"
18 android:id="@+id/text2"
19 android:textSize="10dip"
20 android:text="This is text2"/>
21
22 </LinearLayout>
23 <ImageView android:layout_width="55dip"
24 android:layout_height="fill_parent"
25 android:id="@+id/img"
26
27 />
28</LinearLayout>