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無法從MySQL數據庫在ListView中顯示圖像

[英]Can't display image in listview from database mysql

 原文  2014-04-04 12:51:37  4   1    php/ android/ mysql/ json/ listview

問題描述

我將使用php，json從mysql數據庫在listview android中顯示圖像，但無法顯示該圖像。 link_image應該顯示圖像的位置，但是不顯示有效位置。 請幫我。 謝謝 

status.php
<?php
    //  array for JSON response 
    $response = array(); 

    //  include file koneksi.php 
    include_once("connect.php"); 

    $query = mysql_query("SELECT * FROM status order by id_status desc");

if (mysql_num_rows($query) > 0) {
$response["data_status"] = array();

while($baris = mysql_fetch_array ($query))
{
    $id_status=$baris['id_status'];
    $status=$baris['status'];
    $id1=$baris['id_user'];
    $id2=$baris['id_user_tujuan'];
    $tanggal=$baris['tgl'];
    $awalan = substr($id1, 0,2);
    $awalan2 = substr($id2, 0,2);
    switch($awalan)
    {
        case 'ad':
            $name=mysql_query("SELECT * FROM admin where id_user = '$id1'");
//        echo $nama;
            while($baris2 = mysql_fetch_array ($name))
            {
                $nama2= $baris2['nama'];
            }
            break;

        case 'al':
            $name=mysql_query("SELECT * FROM alumni where id_user = '$id1'");
//        echo $nama;
            while($baris2 = mysql_fetch_array ($name))
            {
        $name2= $baris2['name'];
        $link_image=$baris2['foto'];

        $query_foto1 = mysql_query("SELECT foto FROM alumni where foto = '$link_image'");
        $foto1 = mysql_fetch_array ($query_foto1);
        if($foto1 == "belum upload")
                       {
         $image = 'http://localhost/PortalAlumniSD/img/default.png';
          }
        else
        {
         $image = "http://localhost/PortalAlumniSD/photo/".$baris2['foto'];
                    }
            }
            break;

        case 'pd':
            $nama=mysql_query("SELECT * FROM admin where id_user = '$id1'");
//        echo $nama;
            while($baris2 = mysql_fetch_array ($nama))
            {
                $nama2= $baris2['nama'];
            }
            break;

        case 'pl':
            $nama=mysql_query("SELECT * FROM alumni where id_user = '$id1'");
//        echo $nama;
            while($baris2 = mysql_fetch_array ($nama))
            {
                $nama2= $baris2['nama'];
                $link_image=$baris2['foto'];

                $query_foto1 = mysql_query("SELECT foto FROM alumni where foto = '$link_image'");
                    $foto1 = mysql_fetch_array ($query_foto1);
                    if($foto1 == "belum upload")
                       {
                       $image = 'http://localhost/PortalAlumniSMP/img/default.png';
                       }
                    else
                    {
                       $image = "http://localhost/PortalAlumniSMP/photo/".$baris2['foto'];
                    }
            }
            break;

        case 'md':
            $nama=mysql_query("SELECT * FROM admin where id_user = '$id1'");
//        echo $nama;
            while($baris2 = mysql_fetch_array ($nama))
            {
                $nama2= $baris2['nama'];
            }
            break;

        case 'ml':
            $nama=mysql_query("SELECT * FROM alumni where id_user = '$id1'");
//        echo $nama;
            while($baris2 = mysql_fetch_array ($nama))
            {
                //$data_status["nama_alumni"] = stripslashes($baris2["nama"]);
                $nama2= $baris2['nama'];
                //$data_status["nama_alumni"] = $nama2;
                $link_image=$baris2['foto'];

                $query_foto1 = mysql_query("SELECT foto FROM alumni where foto = '$link_image'");
                    $foto1 = mysql_fetch_array ($query_foto1);
                    if($foto1 == "belum upload")
                       {
                       $image = 'http://localhost/PortalAlumniSMA/img/default.png';
                       }
                    else
                    {
                       $image = "http://localhost/PortalAlumniSMA/photo/".$baris2['foto'];
                    }
            }
            break;
    }

    switch($awalan2)
    {
        case 'ad':
            $nama_tujuan=mysql_query("SELECT * FROM admin where id_user = '$id2'");
//        echo $nama;
            while($baris_nama1 = mysql_fetch_array ($nama_tujuan))
            {
                $nama3= $baris_nama1['nama'];
            }
            break;

        case 'al':
            $nama_tujuan=mysql_query("SELECT * FROM alumni where id_user = '$id2'");
//        echo $nama;
            while($baris_nama1 = mysql_fetch_array ($nama_tujuan))
            {
                //$nama3= $baris_nama1['nama'];
                //$data_status["nama_alumni"] = $nama2;                 
                $nama3= $baris_nama1['nama'];
                //$data_status["nama_alumni_tujuan"] = $nama3;
                $link_image=$baris_nama1['foto'];

                $query_foto1 = mysql_query("SELECT foto FROM alumni where foto = '$link_image'");
                    if($foto1 == "belum upload")
                       {
                       $image = 'http://localhost/PortalAlumniSD/img/default.png';
                       }
                    else
                    {
                       $image = "http://localhost/PortalAlumniSD/photo/".$baris2['foto'];
                    }
            }
            break;

        case 'pd':
            $nama_tujuan=mysql_query("SELECT * FROM admin where id_user = '$id2'");
//        echo $nama;
            while($baris_nama1 = mysql_fetch_array ($nama_tujuan))
            {
                $nama3= $baris_nama1['nama'];
            }
            break;

        case 'pl':
            $nama_tujuan=mysql_query("SELECT * FROM alumni where id_user = '$id2'");
//        echo $nama;
            while($baris_nama1 = mysql_fetch_array ($nama_tujuan))
            {           
                $nama3= $baris_nama1['nama'];
                $link_image=$baris_nama1['foto'];

                $query_foto1 = mysql_query("SELECT foto FROM alumni where foto = '$link_image'");
                    $foto1 = mysql_fetch_array ($query_foto1);
                    if($foto1 == "belum upload")
                       {
                       $image = 'http://localhost/PortalAlumniSMP/img/default.png';
                       }
                    else
                    {
                       $image = "http://localhost/PortalAlumniSMP/photo/".$baris2['foto'];
                    }
            }
            break;

        case 'md':
            $nama_tujuan=mysql_query("SELECT * FROM admin where id_user = '$id2'");
//        echo $nama;
            while($baris_nama1 = mysql_fetch_array ($nama_tujuan))
            {
                $nama3= $baris_nama1['nama'];
            }
            break;

        case 'ml':
            $nama_tujuan=mysql_query("SELECT * FROM alumni where id_user = '$id2'");
//        echo $nama;
            while($baris_nama1 = mysql_fetch_array ($nama_tujuan))
            {               
                $nama3= $baris_nama1['nama'];
                $link_image=$baris_nama1['foto'];

                $query_foto1 = mysql_query("SELECT foto FROM alumni where foto = '$link_image'");
                    $foto1 = mysql_fetch_array ($query_foto1);
                    if($foto1 == "belum upload")
                       {
                       $image = 'http://localhost/PortalAlumniSMA/img/default.png';
                       }
                    else
                    {
                       $image = "http://localhost/PortalAlumniSMA/photo/".$baris2['foto'];
                    }
            }
            break;

    }


    $jum=mysql_query("SELECT * FROM komen where id_status='$id_status'");
    $total= mysql_num_rows($jum);

    if($id1==$id2){
            $data_status["nama_alumni"] = $nama2;
            $data_status["link_image"] = $image;


    }else if($id1!=$id2){
            $data_status["nama_alumni"] = $nama2;
            $data_status["nama_alumni_tujuan"] = $nama3;
            $data_status["link_image"] = $image;

    }

        // temp user array $data_status = array();
        $data_status["id_user"] = $baris["id_user"]; 
        $data_status["id_status"] = $baris["id_status"]; 
        $data_status["id_user_tujuan"] = $baris["id_user_tujuan"]; 
        $data_status["status"] = stripslashes($baris["status"]);
        $data_status["date"] = stripslashes($baris["tgl"]); 
        $data_status["jml"] = $total;

        // menampilkan hasil query dalam bentuk array 
        array_push($response["data_status"], $data_status);
        }

        // success 
        $response["success"] = 1;

        // echoing JSON response 
        echo json_encode($response);

    }else {
        // tidak ada data 
        $response["success"] = 0;
        $response["message"] = "Tidak Ada Data";

        // echoing JSON response 
        echo json_encode($response);
    }
?>

顯示json 

{"data_status":[{"nama_alumni":"susa","link_image":"http:\/\/localhost\/PortalAlumniSMP\/photo\/","id_user":"plsusa@mail.com","id_status":"40","id_user_tujuan":"plsusa@mail.com","status":"ko","date":"April 2, 2014, 11:00 pm","jml":0,"nama_alumni_tujuan":"cumin"},{"nama_alumni":"susa","link_image":"http:\/\/localhost\/PortalAlumniSMP\/photo\/","id_user":"plsusa@mail.com","id_status":"36","id_user_tujuan":"plsusa@mail.com","status":"dfdsg","date":"April 2, 2014, 9:19 pm","jml":0,"nama_alumni_tujuan":"cumin"},{"nama_alumni":"cumin","link_image":"http:\/\/localhost\/PortalAlumniSD\/photo\/","id_user":"altest@mail.com","id_status":"35","id_user_tujuan":"alcandramarlina@ymail.com","status":"hhg","date":"April 2, 2014, 2:49 pm","jml":0,"nama_alumni_tujuan":"candra kasih"},{"nama_alumni":"cumin","link_image":"http:\/\/localhost\/PortalAlumniSD\/photo\/","id_user":"altest@mail.com","id_status":"33","id_user_tujuan":"alcandra.ratri@gmail.com","status":"","date":"April 2, 2014, 2:41 pm","jml":1,"nama_alumni_tujuan":"kasih"},{"nama_alumni":"cumin","link_image":"http:\/\/localhost\/PortalAlumniSD\/photo\/","id_user":"altest@mail.com","id_status":"29","id_user_tujuan":"alcandramarlina@ymail.com","status":"ayoo","date":"March 22, 2014, 6:49 am","jml":0,"nama_alumni_tujuan":"candra kasih"},{"nama_alumni":"kasih","link_image":"http:\/\/localhost\/PortalAlumniSD\/photo\/","id_user":"alcandra.ratri@gmail.com","id_status":"13","id_user_tujuan":"alcandra.ratri@gmail.com","status":"retertert","date":"March 5, 2014, 2:06 pm","jml":0,"nama_alumni_tujuan":"candra kasih"}],"success":1}

這是我在android中的應用代碼： 

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import com.portalalumni.LoginActivity.UserLoginTask;

import android.app.Activity;
import android.app.Fragment;
import android.app.ProgressDialog;
import android.app.SearchManager;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.database.Cursor;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

    private ListView mDrawerList;
    private DrawerLayout mDrawer;
    private CustomActionBarDrawerToggle mDrawerToggle;
    private String[] menuItems;
    private ArrayList<NsMenuItemModel> nsMenuItemModel;
    SessionManager session;

    // Progress Dialog
        private ProgressDialog pDialog;

        // Creating JSON Parser object 
        JSONParser jParser = new JSONParser();
        ArrayList<HashMap<String, String>> DataStatus;

        // url  
        private static String url_data_status = "http://10.0.2.2/alumni/status.php";

        // JSON Node names
        public static final String TAG_SUCCESS = "success"; 
        public static final String TAG_DATA_STATUS = "data_status"; 
        public static final String TAG_ID_USER = "id_user";
        public static final String TAG_ID_STATUS = "id_status";
        public static final String TAG_ID_USER_TUJUAN = "id_user_tujuan";
        public static final String TAG_DATE = "date";
        public static final String TAG_NAMA_ALUMNI = "nama_alumni";
        public static final String TAG_NAMA_ALUMNI_TUJUAN = "nama_alumni_tujuan";
        //public static final String TAG_NAMA_ALUMNI_TUJUAN3 = "nama_alumni_tujuan";
        public static final String TAG_STATUS = "status";
        public static final String TAG_TOTAL = "jml";
        public static final String TAG_LINK_IMAGE = "link_image";
        public static final String TAG_LINK_IMAGE1 = "link_image1";

        // daftar_rs JSONArray 
        JSONArray data_status = null;
        ListView list;
        String id_user,email,success;
        ListStatus adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        session = new SessionManager(getApplicationContext());
        Toast.makeText(getApplicationContext(),
                "User Login Status: " + session.isLoggedIn(), Toast.LENGTH_LONG)
                .show();

        session.checkLogin();

        //Hashmap from login
        HashMap<String, String> user = session.getUserDetails();

        email = user.get(SessionManager.KEY_EMAIL);
        id_user = user.get(SessionManager.KEY_IDUSER);

        // Hashmap for ListView
        DataStatus = new ArrayList<HashMap<String,String>>();

        // Loading daftar rumah sakit in Background Thread
        new LoadStatusActivity().execute();

        // Get listview
        list = (ListView) findViewById(R.id.list);
        list.setAdapter(new ListStatus(this, DataStatus));

        // React to user clicks on item
        list.setOnItemClickListener(new AdapterView.OnItemClickListener() {

            public void onItemClick(AdapterView<?> parentAdapter, View view, int position,
                    long id) {

                HashMap<String, String> selectedItem = DataStatus.get(position);
                   //To-DO get you data from the ItemDetails Getter
                  // selectedItem.get()
                  // the  send the data using intent when opening another activity 
                  Intent intent = new Intent(MainActivity.this, CommentActivity.class);
                  intent.putExtra("id_status",selectedItem.get(TAG_ID_STATUS)); 
                  startActivity(intent);


            }
           });

        // enable ActionBar app icon to behave as action to toggle nav drawer
        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);

        mDrawer = (DrawerLayout) findViewById(R.id.drawer_layout);

        // set a custom shadow that overlays the main content when the drawer
        // opens
        mDrawer.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);

        _initMenu();
        mDrawerToggle = new CustomActionBarDrawerToggle(this, mDrawer);
        mDrawer.setDrawerListener(mDrawerToggle);

    }

    private void _initMenu() {
        NsMenuAdapter mAdapter = new NsMenuAdapter(this);

        // Add first block

        menuItems = getResources().getStringArray(
                R.array.menu);
        String[] menuItemsIcon = getResources().getStringArray(
                R.array.menu_items_icon);

        nsMenuItemModel = new ArrayList<NsMenuItemModel>();

        // adding nav drawer items to array
        nsMenuItemModel.add(new NsMenuItemModel(menuItems[0], menuItemsIcon.length));
        nsMenuItemModel.add(new NsMenuItemModel(menuItems[1], menuItemsIcon.length));
        nsMenuItemModel.add(new NsMenuItemModel(menuItems[2], menuItemsIcon.length));
        nsMenuItemModel.add(new NsMenuItemModel(menuItems[2], menuItemsIcon.length));

        int res = 0;
        for (String item : menuItems) {

            int id_title = getResources().getIdentifier(item, "string",
                    this.getPackageName());
            int id_icon = getResources().getIdentifier(menuItemsIcon[res],
                    "drawable", this.getPackageName());

            NsMenuItemModel mItem = new NsMenuItemModel(id_title, id_icon);
            //if (res==1) mItem.counter=12; //it is just an example...
            //if (res==3) mItem.counter=3; //it is just an example...
            mAdapter.addItem(mItem);
            res++;
        }

        mDrawerList = (ListView) findViewById(R.id.drawer);
        if (mDrawerList != null)
            mDrawerList.setAdapter(mAdapter);

        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        // Sync the toggle state after onRestoreInstanceState has occurred.
        mDrawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        mDrawerToggle.onConfigurationChanged(newConfig);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.main, menu);
        return super.onCreateOptionsMenu(menu);
    }

    /* Called whenever we call invalidateOptionsMenu() */
    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
        // If the nav drawer is open, hide action items related to the content view
        boolean drawerOpen = mDrawer.isDrawerOpen(mDrawerList);
        menu.findItem(R.id.action_search).setVisible(!drawerOpen);
        menu.findItem(R.id.action_new_status).setVisible(!drawerOpen);
        return super.onPrepareOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        /*
         * The action bar home/up should open or close the drawer.
         * ActionBarDrawerToggle will take care of this.
         */
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }

                // Handle action bar actions click
                switch (item.getItemId()) {
                case R.id.action_search:
                    search();
                    return true;
                case R.id.action_new_status:
                    newstatus();
                    return true;
                default:
                    return super.onOptionsItemSelected(item);
                }
    }

    private void newstatus() {
        // TODO Auto-generated method stub
            Intent i = null;
            i = new Intent(MainActivity.this, NewStatusActivity.class);
            startActivity(i);
    }

    private void search() {
        // TODO Auto-generated method stub
            Intent i = null;
            i = new Intent(MainActivity.this, SearchAlumniActivity.class);
            startActivity(i);
    }

    private void profile() {
        // TODO Auto-generated method stub
            Intent i = null;
            i = new Intent(MainActivity.this, ProfileActivity.class);
            startActivity(i);
    }

    private void home() {
        // TODO Auto-generated method stub
            Intent i = null;
            i = new Intent(MainActivity.this, MainActivity.class);
            startActivity(i);
    }

    private void inbox() {
        // TODO Auto-generated method stub
            Intent i = null;
            i = new Intent(MainActivity.this, InboxActivity.class);
            startActivity(i);
    }

    private void logout() {
        // TODO Auto-generated method stub
        session.logoutUser();
        finish();
    }

    private class CustomActionBarDrawerToggle extends ActionBarDrawerToggle {

        public CustomActionBarDrawerToggle(Activity mActivity,DrawerLayout mDrawerLayout){
            super(
                mActivity,
                mDrawerLayout, 
                R.drawable.ic_drawer,
                R.string.menu_open, 
                R.string.menu_close);
        }

        @Override
        public void onDrawerClosed(View view) {
            getActionBar().setTitle(getString(R.string.menu_close));
            invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
        }

        @Override
        public void onDrawerOpened(View drawerView) {
            getActionBar().setTitle(getString(R.string.menu_open));
            invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
        }
    }

    private class DrawerItemClickListener implements ListView.OnItemClickListener {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {
            // Highlight the selected item, update the title, and close the drawer
            // update selected item and title, then close the drawer
            mDrawerList.setItemChecked(position, true);
            switch (position) {
            case 0:
                profile();
                break;
            case 1:
                home();
                break;
            case 2:
                inbox();
                break;
            case 3:
                logout();
                break;
            default:
                break;
            }
            mDrawer.closeDrawer(mDrawerList);

        }

    }

    public static void unbindDrawables(View view) {
        if (view != null) {
            if (view.getBackground() != null) {
                view.getBackground().setCallback(null);
            }
            if (view instanceof ViewGroup) {
                for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
                    unbindDrawables(((ViewGroup) view).getChildAt(i));
                }
                try {
                    ((ViewGroup) view).removeAllViews();
                } catch (UnsupportedOperationException e) {
                    // No problem, nothing to do here
                }
            }
        }
    }

    /***    Updating parsed JSON data into ListView *   */ 
    public void SetListViewAdapter(ArrayList<HashMap<String, String>> status) {
        adapter = new ListStatus(this, status); 
        list.setAdapter(adapter);
    }

    @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 record 
        //  reload this screen again 

        Intent intent = getIntent(); 
        finish(); 
        startActivity(intent);
        }
    }

    /***    Background Async Task to Load all record data by making HTTP Request *  */ 
    class LoadStatusActivity extends AsyncTask<String, String, String> {
    /***    Before starting background thread Show Progress Dialog *    */ 
    @Override
    protected void onPreExecute() { 
        super.onPreExecute();
        pDialog = new ProgressDialog(MainActivity.this); 
        pDialog.setMessage("Loading..."); 
        pDialog.setIndeterminate(false); 
        pDialog.setCancelable(false);
        pDialog.show();
    }

    /***    getting All record data from url *  */ 

    protected String doInBackground(String... args) {

    // Building Parameters 
        List<NameValuePair> params = new ArrayList<NameValuePair>();

    // getting JSON string from URL 
        JSONObject json = jParser.makeHttpRequest(url_data_status, "GET", params);

    // Check your log cat for JSON reponse 
        Log.d("Status: ", json.toString());

    try {
    // Checking for SUCCESS TAG
    int success = json.getInt(TAG_SUCCESS);

    if (success == 1) {
        //  Ada record Data (SUCCESS = 1) 
        //  Getting Array of data_alumni 
        data_status = json.getJSONArray(TAG_DATA_STATUS);

    // looping through All data_alumni
    for (int i = 0; i < data_status.length(); i++) { 
        JSONObject c = data_status.getJSONObject(i);

        //  Storing each json item in variable 
        String id_user = c.getString(TAG_ID_USER);
        String id_status = c.getString(TAG_ID_STATUS);
        String id_user_tujuan = c.getString(TAG_ID_USER);
        String date = c.getString(TAG_DATE);
        String jml = c.getString(TAG_TOTAL);
        String nama_alumni = c.getString(TAG_NAMA_ALUMNI);
        String nama_alumni_tujuan = c.getString(TAG_NAMA_ALUMNI_TUJUAN);
        //String nama_alumni_tujuan3 = c.getString(TAG_NAMA_ALUMNI_TUJUAN3);
        String status = c.getString(TAG_STATUS);
        String link_image = c.getString(TAG_LINK_IMAGE); 
        String link_image1 = c.getString(TAG_LINK_IMAGE1); 


        //  creating new HashMap 
        HashMap<String, String> map = new HashMap<String,String>();

        //  adding each child node to HashMap key => value 
        map.put(TAG_ID_USER, id_user);
        map.put(TAG_ID_STATUS, id_status);
        map.put(TAG_ID_USER_TUJUAN, id_user_tujuan); 
        map.put(TAG_DATE, date);
        map.put(TAG_TOTAL, jml);
        map.put(TAG_NAMA_ALUMNI, nama_alumni);
        map.put(TAG_NAMA_ALUMNI_TUJUAN, nama_alumni_tujuan);
        //map.put(TAG_NAMA_ALUMNI_TUJUAN3, nama_alumni_tujuan3);
        map.put(TAG_STATUS, status);
        map.put(TAG_LINK_IMAGE, link_image);
        map.put(TAG_LINK_IMAGE1, link_image1);

        //  adding HashList to ArrayList 
        DataStatus.add(map);

    }
    } else {
        //  Tidak Ada Record Data (SUCCESS = 0) 
        super.onCancelled();
    }
    } 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 record data alumni
        pDialog.dismiss();

        // updating UI from Background Thread 
        runOnUiThread(new Runnable() {

        public void run() {
            // updating listview 
            SetListViewAdapter(DataStatus);

        }
        });
    }
    }

    /**@Override
    public void onBackPressed() {
        android.os.Process.killProcess(android.os.Process.myPid());
        System.exit(1);
    } **/

}

1 個解決方案

解決方案1
 0  2014-04-04 13:03:18

根據json，這是您圖片的URL： http://localhost/PortalAlumniSMP/photo/ 。 它指的是localhost，因此它可能會在您的PC上運行（假設它也是您的Web服務器）。 不過，它無法在Android設備上運行。

Localhost是指當前設備-即，當您通過桌面瀏覽器打開它時，它將在PC上查找圖像（並且確實存在）。 通過智能手機打開它時，它只會在gsm上查找圖像，而不是在PC上查找。 因此它找不到它。

您需要將Web應用程序發布到某個地方-將其托管在您自己的Web服務器上，或者使用某些托管提供程序/雲服務。 然后通過域名而不是“ localhost”來引用圖像。

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