我想在我的Android应用程序的listview中显示我的php，mysql数据库中的图像和标题...
我现在已经厌倦了为此寻找代码但是ddnt得到正确的代码..我尝试了很多不同的方法但没有获得成功..我也听说过毕加索但不知道如何使用它与php数据库来获取图像在listview中使用毕加索..
我已尝试过以下代码但无法找到结果..
public class GetThisCategoryProductsActivity extends ListActivity {
ImageView image; Bitmap bitmapOrg;
String ctitle;
private ProgressDialog pDialog;
// Creating JSON Parser object
JSONParser jParser = new JSONParser();
ArrayList<HashMap<String, String>> productsList;
// url to get all products list
private static final String url_all_products = "http://xx.xxx.xx/AndroidApp/get_all_products.php";
// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_PRODUCTS = "products";
private static final String TAG_PID = "pid";
private static final String TAG_TITLE = "title";
private static final String TAG_IMAGE = "image";
private static final String TAG_PRICE = "price";
private static final String TAG_CTITLE = "ctitle";
// products JSONArray
JSONArray products = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
image = (ImageView) findViewById(R.id.image);
setContentView(R.layout.activity_get_this_category_products);
Intent i = getIntent();
ctitle = i.getStringExtra(TAG_CTITLE);
// Hashmap for ListView
productsList = new ArrayList<HashMap<String, String>>();
// Loading products in Background Thread
new LoadAllProducts().execute(url_all_products);
// Get listview
ListView lv = getListView();
// on seleting single product
// launching Edit Product Screen
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String pid = ((TextView) view.findViewById(R.id.pid)).getText()
.toString();
// Starting new intent
Intent in = new Intent(getApplicationContext(),
GetThisProductActivity.class);
// sending pid to next activity
in.putExtra(TAG_PID, pid);
// starting new activity and expecting some response back
startActivityForResult(in, 100);
}
});
}
public void post(View view) {
Intent intent = new Intent(this, PostAdActivity.class);
intent.putExtra("ctitle", ctitle);
startActivity(intent);
}
// Response from Edit Product Activity
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// if result code 100
if (resultCode == 100) {
// if result code 100 is received
// means user edited/deleted product
// reload this screen again
Intent intent = getIntent();
finish();
startActivity(intent);
}
}
/**
* Background Async Task to Load all product by making HTTP Request
* */
class LoadAllProducts extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(GetThisCategoryProductsActivity.this);
pDialog.setMessage("Loading. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting All products from url
* */
protected String doInBackground(String... args) {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("ctitle", ctitle));
// getting JSON string from URL
JSONObject json = jParser.makeHttpRequest(url_all_products, "GET", params);
// Check your log cat for JSON reponse
Log.d("All Entries: ", json.toString());
try {
// Checking for SUCCESS TAG
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// products found
// Getting Array of Products
products = json.getJSONArray(TAG_PRODUCTS);
// looping through All Products
for (int i = 0; i < products.length(); i++) {
JSONObject c = products.getJSONObject(i);
// Storing each json item in variable
String pid = c.getString(TAG_PID);
String title = c.getString(TAG_TITLE);
String ctitle = c.getString(TAG_CTITLE);
String price = c.getString(TAG_PRICE);
String str1 = c.getString(TAG_IMAGE);
byte[] ba2 = Base64.decode(str1 ,Base64.DEFAULT);
Bitmap bitmap = BitmapFactory.decodeByteArray(ba2, 0, ba2.length);
Drawable d = new BitmapDrawable(getResources(),bitmap);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_PID, pid);
map.put(TAG_TITLE, title);
map.put(TAG_CTITLE, ctitle);
map.put(TAG_PRICE, price);
map.put(TAG_IMAGE, String.valueOf(d));
// adding HashList to ArrayList
productsList.add(map);
}
} else {
// no products found
// Launch Add New product Activity
Intent i = new Intent(getApplicationContext(),
MainActivity.class);
// Closing all previous activities
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all products
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
GetThisCategoryProductsActivity.this, productsList,
R.layout.list_cat_ad, new String[]{TAG_PID,
TAG_TITLE, TAG_CTITLE, TAG_IMAGE, TAG_PRICE},
new int[]{R.id.pid, R.id.title, R.id.ctitle, R.id.image, R.id.price});
// updating listview
setListAdapter(adapter);
}
});
}
}
}
任何人都可以帮助我