-1
你好，我已經設置了properdata和我的代碼工作，但不知道什麼錯誤的圖像不顯示在gridview它只顯示黑色的黑色圖像。這裏是我的代碼：如何在Android中顯示來自Url的圖像？
String response=sb.toString();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is1 = new InputSource();
is1.setCharacterStream(new StringReader(response));
Document doc = db.parse(is1);
Element root = doc.getDocumentElement();
NodeList nodes = root.getElementsByTagName("Photo");
for (int i = 0; i < nodes.getLength(); i++)
{
Element element = (Element) nodes.item(i);
if(trmap.containsKey(strPhotoId))
{
trmap.clear();
}
if(trmapother.containsKey(strphotoidother))
{
trmapother.clear();
}
NodeList ProfilePhoto = element.getElementsByTagName("ProfilePhoto");
Element line1 = (Element) ProfilePhoto.item(0);
photoimg= getCharacterDataFromElement(line1);
NodeList Count = element.getElementsByTagName("Count");
Element line2 = (Element) Count.item(0);
strCount= getCharacterDataFromElement(line2);
for(int k=0; k<Integer.parseInt(strCount); k++)
{
NodeList PhotoId = element.getElementsByTagName("PhotoId");
Element line4 = (Element) PhotoId.item(k);
strPhotoId= Integer.parseInt(getCharacterDataFromElement(line4));
ar.add(strPhotoId);
NodeList PhotoUrl = element.getElementsByTagName("PhotoUrl");
Element line5 = (Element) PhotoUrl.item(k);
strPhotoUrl= getCharacterDataFromElement(line5);
arrprofile.add(strPhotoUrl);
trmap.put(strPhotoId, strPhotoUrl);
trmap.containsKey(strPhotoId);
//trmap.containsKey(strPhotoUrl);
//trmap.get(strPhotoUrl);
//trmap.clear();
}
NodeList OtherPhoto = element.getElementsByTagName("OtherPhoto");
Element line6 = (Element) OtherPhoto.item(0);
photoother= getCharacterDataFromElement(line6);
NodeList Countother = element.getElementsByTagName("Count");
Element line7 = (Element) Countother.item(1);
strCountother= getCharacterDataFromElement(line7);
NodeList UserPhotoother = element.getElementsByTagName("UserPhoto");
Element line8 = (Element) UserPhotoother.item(1);
String strUserPhoto1= getCharacterDataFromElement(line8);
for(int S=0; S<Integer.parseInt(strCountother); S++)
{
NodeList PhotoIdother = element.getElementsByTagName("PhotoId");
Element line9 = (Element) PhotoIdother.item(S);
strphotoidother= Integer.parseInt(getCharacterDataFromElement(line9));
br.add(strphotoidother);
NodeList PhotoUrlother = element.getElementsByTagName("PhotoUrl");
Element line10 = (Element) PhotoUrlother.item(S);
strPhotoUrlother= getCharacterDataFromElement(line10);
arrother.add(strPhotoUrlother);
trmapother.put(strphotoidother,strPhotoUrlother);
trmapother.containsKey(strphotoidother);
//trmapother.clear();
}
/*NodeList PrivatePhoto = element.getElementsByTagName("PrivatePhoto");
Element line11 = (Element) PrivatePhoto.item(0);
strcountprivate= getCharacterDataFromElement(line11);
NodeList Countprivate = element.getElementsByTagName("Count");
Element line12 = (Element) Countprivate.item(2);
strCountotherprivate= getCharacterDataFromElement(line12);
NodeList UserPhotoprivate = element.getElementsByTagName("UserPhoto");
Element line13 = (Element) UserPhotoprivate.item(2);
String strUserPhotoprivate= getCharacterDataFromElement(line13);
if(trmaprivate.containsKey(strPhotoIdprivate))
{
trmaprivate.clear();
}
for(int M =0; M<Integer.parseInt(strUserPhotoprivate); M++)
{
NodeList PhotoIdprivate = element.getElementsByTagName("PhotoId");
Element line14 = (Element) PhotoIdprivate.item(M);
strPhotoIdprivate= Integer.parseInt(getCharacterDataFromElement(line14));
br.add(strPhotoIdprivate);
NodeList PhotoUrlprivate = element.getElementsByTagName("PhotoUrl");
Element line15 = (Element) PhotoUrlprivate.item(M);
strPhotoUrlprivate= getCharacterDataFromElement(line15);
arrprivate.add(strUserPhotoprivate);
trmaprivate.put(strPhotoIdprivate, strPhotoUrlprivate);
}*/
//StringTokenizer st1 = new StringTokenizer(strCount, ",");
TableLayout phototbl = (TableLayout)findViewById(R.id.imhttbl);
LinearLayout workline = new LinearLayout(this);
workline.setBackgroundResource(R.drawable.filterbarbackground);
LinearLayout workline4 = new LinearLayout(this);
TextView textView1 =new TextView(this);
textView1.setPadding(5,5,0,0);
textView1.setText("Photo Of You");
textView1.setTextColor(Color.BLACK);
workline4.addView(textView1);
workline.addView(workline4);
phototbl.addView(workline);
LinearLayout lin = new LinearLayout(this);
lin.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,250));
GridView gridView11 = new GridView(this);
gridView11.setBackgroundColor(Color.WHITE);
gridView11.setVerticalSpacing(10);
gridView11.setHorizontalSpacing(10);
gridView11.setNumColumns(4);
gridView11.setStretchMode(GridView.STRETCH_COLUMN_WIDTH);
gridView11.setAdapter(new ImageAdapter(this));
gridView11.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.FILL_PARENT));
gridView11.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView parent, View v, int position, long id)
{
strPhotoId=position;
if(trmap.containsKey(position))
{
strPhotoId=position;
Intent intent = new Intent(Photopart.this,ImageSwit.class);
startActivity(intent);
}
}
});
//scr.addView(gridView11);
lin.addView(gridView11);
phototbl.addView(lin);
LinearLayout phototxt = new LinearLayout(this);
phototxt.setBackgroundColor(Color.WHITE);
TextView textViewtxt =new TextView(this);
textViewtxt.setPadding(5,5,0,0);
textViewtxt.setText("Photo with only you in them, in which you can be easily identified and your face is clear visible");
phototxt.addView(textViewtxt);
phototbl.addView(phototxt);
LinearLayout photoll = new LinearLayout(this);
photoll.setBackgroundResource(R.drawable.filterbarbackground);
LinearLayout photooth = new LinearLayout(this);
TextView textView2 =new TextView(this);
textView2.setPadding(5,5,0,0);
textView2.setText("Other Photo");
textView2.setTextColor(Color.BLACK);
photooth.addView(textView2);
photoll.addView(photooth);
phototbl.addView(photoll);
LinearLayout linothr = new LinearLayout(this);
ScrollView scd = new ScrollView(this);
GridView gridView22 = new GridView(this);
gridView22.setStretchMode(GridView.STRETCH_COLUMN_WIDTH);
gridView22.setVerticalSpacing(10);
gridView22.setHorizontalSpacing(10);
gridView22.setNumColumns(4);
gridView22.setBackgroundColor(Color.WHITE);
gridView22.setAdapter(new ImageAdapter1(this));
gridView22.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,200));
gridView22.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id)
{
strphotoidother=position;
if(trmapother.containsKey(position))
{
strphotoidother=position;
startActivity(new Intent(Photopart.this,ImageSwit.class));
}
}
});
//scd.addView(gridView22);
linothr.addView(gridView22);
phototbl.addView(linothr);
LinearLayout phototxt1 = new LinearLayout(this);
phototxt1.setBackgroundColor(Color.WHITE);
TextView textViewtxt1 =new TextView(this);
textViewtxt1.setPadding(5,5,0,0);
textViewtxt1.setText("All other photos of you and your friends party pics,travels pics etc...");
phototxt1.addView(textViewtxt1);
phototbl.addView(phototxt1);
LinearLayout photollprovate = new LinearLayout(this);
photollprovate.setBackgroundResource(R.drawable.filterbarbackground);
LinearLayout photoothprivate = new LinearLayout(this);
TextView textView3 =new TextView(this);
textView3.setPadding(5,5,0,0);
textView3.setText("Private Photo");
textView3.setTextColor(Color.BLACK);
photoothprivate.addView(textView3);
photollprovate.addView(photoothprivate);
phototbl.addView(photollprovate);
LinearLayout linothrprivate = new LinearLayout(this);
ScrollView scg = new ScrollView(this);
GridView gridView33 = new GridView(this);
gridView33.setStretchMode(GridView.STRETCH_COLUMN_WIDTH);
gridView33.setVerticalSpacing(10);
gridView33.setHorizontalSpacing(10);
gridView33.setNumColumns(4);
gridView33.setBackgroundColor(Color.WHITE);
//gridView33.setAdapter(new ImageAdapter2(this));
gridView33.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,200));
gridView33.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id)
{
}
});
//scg.addView(gridView33);
linothrprivate.addView(gridView33);
phototbl.addView(linothrprivate);
LinearLayout phototxt2 = new LinearLayout(this);
phototxt2.setBackgroundColor(Color.WHITE);
TextView textViewtxt2 =new TextView(this);
textViewtxt2.setPadding(5,5,0,0);
textViewtxt2.setText("Private photo will be only available to users that has allowed access by your self.");
phototxt2.addView(textViewtxt2);
phototbl.addView(phototxt2);
}
}
catch (IOException e)
{
e.printStackTrace();
}
catch (ParserConfigurationException e)
{
e.printStackTrace();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
public static String getCharacterDataFromElement(Element e)
{
Node child = e.getFirstChild();
if (child instanceof CharacterData) {
CharacterData cd = (CharacterData) child;
return cd.getData();
}
return "?";
}
/*public class ImageAdapter1 extends BaseAdapter
{
private Context context;
public ImageAdapter1(Context c)
{
context = c;
}
//---returns the number of images---
public int getCount() {
return imageIDs.length;
}
//---returns the ID of an item---
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
//---returns an ImageView view---
public View getView(int position, View convertView, ViewGroup parent)
{
ImageView imageView;
if (convertView == null) {
imageView = new ImageView(context);
imageView.setLayoutParams(new GridView.LayoutParams(85, 85));
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
imageView.setPadding(5, 5, 5, 5);
} else {
imageView = (ImageView) convertView;
}
imageView.setImageResource(imageIDs[position]);
return imageView;
}
} */
public class ImageAdapter extends BaseAdapter
{
int mGalleryItemBackground;
private Context context;
public ImageAdapter(Context c)
{
context = c;
TypedArray a = obtainStyledAttributes(R.styleable.gellery);
mGalleryItemBackground = a.getResourceId(R.styleable.gellery_android_galleryItemBackground, 0);
a.recycle();
}
//---returns the number of images---
public int getCount()
{
return trmap.size();
}
//---returns the ID of an item---
public Object getItem(int position)
{
return trmap.get(position);
}
public long getItemId(int position)
{
return position;
}
//---returns an ImageView view---
public View getView(int position, View convertView, ViewGroup parent)
{
if (convertView == null)
{
iv = new ImageView(context);
iv.setScaleType(ImageView.ScaleType.FIT_XY);
iv.setLayoutParams(new GridView.LayoutParams(85,85));
iv.setPadding(2,2,2,2);
iv.setBackgroundResource(mGalleryItemBackground);
}
else
{
iv = (ImageView)convertView;
}
//iv.setImageResource(imageIDs[position]);
if(trmap.containsKey(position))
{
try
{
URL FileUrl= new URL(trmap.get(position));
URL myUrl = new URL(trmap.get(strPhotoUrl));
String dt = myUrl.toString();
HttpURLConnection conn= (HttpURLConnection)myUrl .openConnection();
// conn.setDoInput(true);
//conn.connect();
HttpGet httpRequest = null;
try
{
httpRequest = new HttpGet(FileUrl.toURI());
}
catch (URISyntaxException e)
{
e.printStackTrace();
}
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response = (HttpResponse) httpclient.execute(httpRequest);
HttpEntity entity = response.getEntity();
BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(entity);
InputStream instream = bufHttpEntity.getContent();
bmImg = BitmapFactory.decodeStream(instream);
//InputStream is = conn.getInputStream();
//bmImg = BitmapFactory.decodeStream(is);
}
catch(Exception e)
{
}
}
iv.setImageBitmap(bmImg);
return iv;
請將代碼縮小到相關部分。 – CSchulz 2011-06-15 15:02:00