} //更新列表视图 getListView（）.setAdapter（适配器）； //} // }); } } @凌驾 公共布尔onCreateOptions菜单（菜单）{ //为菜单充气；这会将项目添加到操作栏（如果存在）。 MenuInflater充气机=getMenuInflater（）； getMenuInflater（）.充气（R.menu.menu\u新闻，菜单）； 返回super.onCreateOptions菜单（菜单）； } @凌驾 公共布尔值onOptionsItemSelected（菜单项项）{ //处理操作栏项目单击此处。操作栏将 //自动处理Home/Up按钮上的点击，只要 //在AndroidManifest.xml中指定父活动时。 int id=item.getItemId（）； //noinspection SimplifiableIf语句 if（id==R.id.action\u设置）{ 返回true； } 返回super.onOptionsItemSelected（项目）； }

有人能帮我让ImageView正常工作吗？

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感谢您之前

您似乎正确地获得了图像的名称，但由于这些图像名称不在您的应用程序中（我猜是这样），SimpleAdapter没有与之匹配的资源Id；如果您收到一个像“pretty_car.png”这样的图像名称，并将其传递给SimpleAdapter，这对它没有任何关系，它不知道应该从应用程序内容中加载资源中的哪个图像。您唯一的选择似乎是创建一个自定义适配器，根据其文件名检索图像

Toolbar toolbar;
ImageView image;
// Progress Dialog
private ProgressDialog pDialog;
// Creating JSON Parser object
JSONParser jParser = new JSONParser();

private ListView listView;

ArrayList<HashMap<String, String>> productsList;

// url to get all products list
private static String url_all_products = "http://192.168.1.111/log_inputitem.php";

// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_PRODUCTS = "inputitemlog";
private static final String TAG_LOGO = "Item Logo";
private static final String TAG_NAME = "Name";
private static final String TAG_CODEITEM = "Item Code";
private static final String TAG_UPGRADEITEM = "Item Upgrade";
private static final String TAG_DATEITEM = "Item Date";

// products JSONArray
JSONArray products = null;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_logitem);
    // ListView listView = (ListView) findViewById(android.R.id.list);
    // Hashmap for ListView
    productsList = new ArrayList<HashMap<String, String>>();

    // Loading products in Background Thread
    new LoadAllProducts().execute();

    toolbar = (Toolbar) findViewById(R.id.toolbar);
    image = (ImageView) findViewById(R.id.thumbnail);

    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    //listView = (ListView) findViewById(R.id.lista);
    TypedValue typedValueColorPrimaryDark = new TypedValue();
    ListLogItem.this.getTheme().resolveAttribute(R.attr.colorPrimary, typedValueColorPrimaryDark, true);
    final int colorPrimaryDark = typedValueColorPrimaryDark.data;
    if (Build.VERSION.SDK_INT >= 21) {
        getWindow().setStatusBarColor(colorPrimaryDark);
    }
}

// Get listview
protected ListView getListView(){
    if (listView == null) {
        listView = (ListView) findViewById(R.id.logitem);
    }
    return listView;
}

// Response from Edit Product Activity
@Override
public 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, Void, String> {

    /**
     * Before starting background thread Show Progress Dialog
     * */
    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        pDialog = new ProgressDialog(ListLogItem.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>();
        // getting JSON string from URL
        JSONObject json = jParser.makeHttpRequest(url_all_products, "GET", params);

        // Check your log cat for JSON reponse
        Log.d("All Products: ", 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 logo = c.getString(TAG_LOGO);
                    String name = c.getString(TAG_NAME);
                    String codeitem = c.getString(TAG_CODEITEM);
                    String upgradeitem = c.getString(TAG_UPGRADEITEM);
                    String dateitem = c.getString(TAG_DATEITEM);

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

                    // adding each child node to HashMap key => value
                    map.put(TAG_LOGO, logo);
                    map.put(TAG_NAME, name);
                    map.put(TAG_CODEITEM, codeitem);
                    map.put(TAG_UPGRADEITEM, upgradeitem);
                    map.put(TAG_DATEITEM, dateitem);

                    // adding HashList to ArrayList
                    productsList.add(map);
                }
            } else {
                Toast.makeText(getApplicationContext(), "Doesn't have log item now", Toast.LENGTH_SHORT).show();
            }
        } 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(
                ListLogItem.this, productsList,
                R.layout.list_inputitem, new String[]{
                TAG_LOGO, TAG_NAME, TAG_CODEITEM, TAG_UPGRADEITEM, TAG_DATEITEM},
                new int[]{R.id.thumbnail, R.id.title, R.id.rating, R.id.genre, R.id.releaseYear});
        if (TAG_LOGO == "ig"){
            image.setImageResource(R.drawable.flat);
        }
        // updating listview
        getListView().setAdapter(adapter);
        //}
        // });
    }
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    MenuInflater inflater = getMenuInflater();
    getMenuInflater().inflate(R.menu.menu_news, menu);
    return super.onCreateOptionsMenu(menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}