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여기에서 모든 해결책을 시도했지만 도움이되지 않았습니다. 이미지는 텍스트 만 목록보기에 표시되지 않습니다. 나는이 코드이미지가 ImageView에 표시되지 않습니다.
public class Restaurants extends Activity {
ListView listView;
private StockAdaptor stockAdaptor;
String jsonResult = null;
ImageView image;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.restaurants);
listView = (ListView) findViewById(android.R.id.list);
image = (ImageView) findViewById(R.id.image);
new JsonReadTask().execute("http://link/GetRestaurants.php");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
return true; //No options
}
public void onStart() {
super.onStart();
stockAdaptor = new StockAdaptor(this); //Create a new StockAdaptor
}
public static String strFromStream(InputStream in) throws IOException { //Simple function, getting a String from an InputStream
StringBuilder out = new StringBuilder();
BufferedReader breader = new BufferedReader(new InputStreamReader(in));
String cline;
String newLine = System.getProperty("line.separator");
while ((cline = breader.readLine()) != null) {
out.append(cline);
out.append(newLine);
}
return out.toString();
}
private class StockAdaptor extends BaseAdapter { //The stocks list adaptor
class ViewHolder {
TextView name;
TextView menu;
ImageView image;
}
private LayoutInflater layoutInflater;
private RestaurantInformation[] stocks = null; //Array of stocks
private ListView stocksListView = null;
public StockAdaptor(Context context) {
super();
layoutInflater = LayoutInflater.from(context);
}
public void setStockList(RestaurantInformation[] stocksinfo) {
this.stocks = stocksinfo;
}
@Override
public int getCount() {
return stocks.length;
}
@Override
public Object getItem(int position) {
return stocks[position];
}
public RestaurantInformation[] getAll() { //Return the array of stocks
return stocks;
}
@Override
public long getItemId(int position) {
return 0;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder; //New holder
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.restaurant_information, null);
holder = new ViewHolder();
// Creates the new viewHolder define above, storing references to the children
holder.name = (TextView) convertView.findViewById(R.id.name);
holder.menu = (TextView) convertView.findViewById(R.id.menu);
holder.image = (ImageView) convertView.findViewById(R.id.image);
if (holder.image != null) {
if (holder.image.getDrawable() == null) {
new ImageDownloaderTask(holder.image, null)
.execute(stocks[position].image); //Download the image using the image
}
}
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.name.setText(stocks[position].name);
holder.menu.setText(stocks[position].menu);
return convertView;
}
}
private class JsonReadTask extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... params) {
if (URLUtil.isValidUrl(params[0])) {
final AndroidHttpClient client = AndroidHttpClient.newInstance("Android");
final HttpGet getRequest = new HttpGet(params[0]);
try {
HttpResponse response = client.execute(getRequest);
final HttpEntity httpentity = response.getEntity();
if (httpentity != null){
InputStream inputStream = null;
try {
inputStream = httpentity.getContent();
jsonResult = strFromStream(inputStream);
Log.i("", jsonResult);
return jsonResult;
} catch (IllegalArgumentException e) {
//
} finally {
httpentity.consumeContent();
}
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
client.close();
}
}
return null;
}
@Override
protected void onPostExecute(String result) {
ListDrwaer();
}
}// end async task
// build hash set for list view
public void ListDrwaer() {
//Log.d("data from server", "data: " + jsonResult.toString());
try {
if (jsonResult!=null) {
JSONObject jsonResponse = new JSONObject(jsonResult);
JSONArray jsonMainNode = jsonResponse.optJSONArray("Restaurants");
Vector<RestaurantInformation> vstocks = new Vector<RestaurantInformation>();
if(jsonMainNode == null)
{
Log.e("If is null", "jsonMainNode is null");
return;
}
for (int i = 0; i < jsonMainNode.length(); i++) {
JSONObject jsonChildNode = jsonMainNode.getJSONObject(i);
RestaurantInformation stock = new RestaurantInformation();
stock.image = jsonChildNode.getString("image");
stock.name = jsonChildNode.optString("name");
stock.menu = jsonChildNode.optString("menu");
//stock.imgPath = jsonChildNode.getString("imgPath");
Log.e("err", stock.image + " " + stock.name + " " + stock.menu);
vstocks.add(stock);
}
RestaurantInformation[] stocks = new RestaurantInformation[jsonMainNode.length()];
int stockscount = jsonMainNode.length();
for (int n = 0; n < stockscount; n++)
{
stocks[n] = vstocks.get(n);
}
stockAdaptor.setStockList(stocks);
listView.setAdapter(stockAdaptor);
} else {
Toast.makeText(getApplicationContext(), "Error; jsonResult null",
Toast.LENGTH_SHORT).show();
}
} catch (JSONException e) {
Toast.makeText(getApplicationContext(), "Error" + e.toString(),
Toast.LENGTH_SHORT).show();
}
}
private class ImageDownloaderTask extends AsyncTask<String, Void, Bitmap> {
private final WeakReference<ImageView> imageViewReference;
public ImageDownloaderTask(ImageView imageView, View view) {
imageViewReference = new WeakReference<ImageView>(imageView);
}
@Override
// Actual download method, run in the task thread
protected Bitmap doInBackground(String... params) {
// params comes from the execute() call: params[0] is the url.
return downloadBitmap(params[0]);
}
@Override
// Once the image is downloaded, associates it to the imageView
protected void onPostExecute(Bitmap bitmap) {
if (isCancelled()) {
bitmap = null;
}
if (imageViewReference != null) {
ImageView imageView = imageViewReference.get();
if (imageView != null) {
if (bitmap != null) {
imageView.setImageBitmap(bitmap);
} else {
//
}
}
}
}
Bitmap downloadBitmap(String url) {
if(URLUtil.isValidUrl(url)){
final AndroidHttpClient client = AndroidHttpClient.newInstance("Android");
final HttpGet getRequest = new HttpGet(url);
try {
HttpResponse response = client.execute(getRequest);
final int statusCode = response.getStatusLine().getStatusCode();
if (statusCode != HttpStatus.SC_OK) {
Log.w("ImageDownloader", "Error " + statusCode
+ " while retrieving bitmap from " + url);
return null;
}
final HttpEntity entity = response.getEntity();
if (entity != null) {
InputStream inputStream = null;
try {
inputStream = entity.getContent();
try {
byte[] buffer = new byte[8192];
int bytesRead;
ByteArrayOutputStream output = new ByteArrayOutputStream();
while ((bytesRead = inputStream.read(buffer)) != -1) {
output.write(buffer, 0, bytesRead);
}
return BitmapFactory.decodeByteArray(output.toByteArray(), 0, output.toByteArray().length);
} catch (IllegalArgumentException e) {
e.printStackTrace();
return null;
}
} finally {
if (inputStream != null) {
inputStream.close();
}
entity.consumeContent();
}
}
} catch (Exception e) {
getRequest.abort();
Log.w("ImageDownloader", "Error while retrieving bitmap from " + url);
} finally {
if (client != null) {
client.close();
}
}
return null;
}
return null;
}
}
}
내가 그렇게 자바 + 안드로이드에 경험이 정말 문제가 될 수있는 아무 생각이 아니에요이다 LogCat
11-04 14:46:29.319: I/(1225): {"Restaurants":[{"id":"1","name":"Restaurant- 1","menu":"Restaurant-1","image":"rest1.jpg"},{"id":"2","name":"Restaurant-2","menu":"Restaurant-2","image":"rest2.jpg"},{"id":"3","name":"Restaurant-3","menu":"Restaurant-3","image":"rest3.jpg"},{"id":"4","name":"Restaurant-4","menu":"Restaurant-4","image":"rest4.jpg"}]}
11-04 14:46:29.329: E/err(1225): rest1.jpg Restaurant-1 Restaurant-1
11-04 14:46:29.329: E/err(1225): rest2.jpg Restaurant-2 Restaurant-2
11-04 14:46:29.329: E/err(1225): rest3.jpg Restaurant-3 Restaurant-3
11-04 14:46:29.329: E/err(1225): rest4.jpg Restaurant-4 Restaurant-4
만이되었다. 이는 restaurants.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".Activity" >
<ImageView
android:id="@+id/image"
android:layout_width="70dp"
android:layout_height="70dp" />
<ListView
android:id="@id/android:list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignLeft="@+id/image"
android:layout_alignParentTop="true" >
</ListView>
</RelativeLayout>
UPDATE 목표는이 같은입니다. 가능하다면 나는 텍스트와 서브 텍스트를 가지고 그 옆 왼쪽에있는 이미지를로드 할 및
UPDATE restaurant_information.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:minHeight="50dp"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="@+id/image"
android:layout_width="70dp"
android:layout_height="70dp" />
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:lineSpacingExtra="3dp"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:text="" />
<TextView
android:id="@+id/menu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:text="" />
</LinearLayout>
당신이 당신의 R.layout.restaurant_information 레이아웃을 게시하시기 바랍니다 수 :
이 사용 해보세요? – JML질문에 추가되었지만 여전히 listview'restaurant.xml'에 onclick을 넣지 않았기 때문에 작동하지 않습니다 – Goro