我在我的应用程序中执行异步类在该特定时间段内（同时在后台运行类进程）我无法从我的应用程序访问任何内容。我触摸它所做的任何工作，并在Async类进程完成后正常运行。 所以，我想要解决方案，如果我想在应用程序中进行更改，那时更新过程将在后台运行，我也可以访问此应用程序。并提出申请的其他要求。所以请任何解决我的问题的人请给我解决这个问题。
我的代码在这里给出
class GetUserDetail extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(wishlist.this);
pDialog.setMessage("Loading details. Please wait...");
pDialog.setIndeterminate(false);
pDialog.show();
}
protected String doInBackground(String... params) {
runOnUiThread(new Runnable() {
public void run() {
try {
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("name", "xyz"));
JSONObject json = jsonpd.makeHttpRequest(url, "POST",
params);
Log.d("Single user Details", json.toString());
// JSONObject mainJson = new
// JSONObject(json.toString());
JSONArray json_contents = json.getJSONArray("Success");
for (int i = 0; i < json_contents.length(); i++) {
JSONObject c = json_contents.getJSONObject(i);
// tv.setVisibility(View.GONE);
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_name, c.getString(TAG_name));
map.put(TAG_image, c.getString(TAG_image));
map.put(TAG_product_id, c.getString(TAG_product_id));
map.put(TAG_des, c.getString(TAG_des));
map.put(TAG_price, c.getString(TAG_price));
arraylist.add(map);
}
} catch (Exception e) {
tv.setVisibility(View.VISIBLE);
}
}
});
return null;
}
protected void onPostExecute(String file_url) {
// Pass the results into ListViewAdapter.java
adapters = new WishListViewAdapter(wishlist.this, arraylist);
// Set the adapter to the ListView
wishlist.setAdapter(adapters);
// Close the progressdialog
pDialog.dismiss();
}
}
现在看到这个适配器类
public class WishListViewAdapter extends BaseAdapter {
String addtocartz="spiurl";
TextView pname, pdes, pprice, pid;
Context context;
LayoutInflater inflater;
ArrayList<HashMap<String, String>> data;
ImageLoader imageLoader;
String PID, PNAME;
DecimalFormat dec = new DecimalFormat("#.##");
JSONParser jsonpd = new JSONParser();
UserSessionManager session;
ProgressDialog pDialog;
HashMap<String, String> resultp = new HashMap<String, String>();
public WishListViewAdapter(Context context,
ArrayList<HashMap<String, String>> arraylist) {
this.context = context;
data = arraylist;
imageLoader = new ImageLoader(context);
}
@Override
public int getCount() {
return data.size();
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
public View getView(final int position, View convertView, ViewGroup parent) {
// Declare Variables
ImageView pimage;
Button addtocart;
dec.setMinimumFractionDigits(2);
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View itemView = inflater.inflate(R.layout.wishlist_row, parent, false);
resultp = data.get(position);
pname = (TextView) itemView.findViewById(R.id.wpname);
pdes = (TextView) itemView.findViewById(R.id.wpdiscription);
pprice = (TextView) itemView.findViewById(R.id.wpprice);
addtocart = (Button) itemView.findViewById(R.id.wAdvance_Search_Button);
pimage = (ImageView) itemView.findViewById(R.id.wpimage);
if (resultp.get(Search.TAG_price) != ("null")) {
pprice.setText("$"
+ dec.format(Double.valueOf(resultp.get(wishlist.TAG_price))));
} else {
pprice.setText("$" + resultp.get(wishlist.TAG_price));
}
pname.setText(resultp.get(wishlist.TAG_name));
pdes.setText(resultp.get(wishlist.TAG_des));
imageLoader.DisplayImage(resultp.get(wishlist.TAG_image), pimage);
addtocart.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
session = new UserSessionManager(context);
if (session.checkLogin())
finish();
else{
resultp = data.get(position);
HashMap<String, String> users = session.getUserDetails();
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("customer_id", users
.get(UserSessionManager.KEY_CUSTOMER_ID)));
params.add(new BasicNameValuePair("product_id", resultp
.get(wishlist.TAG_product_id)));
params.add(new BasicNameValuePair("qty", "1"));
JSONObject json = jsonpd.makeHttpRequest(addtocartz, "POST",
params);
pDialog.dismiss();
Toast.makeText(context, "Product successfully added to cart",
Toast.LENGTH_LONG).show();
}
}
private void finish() {
}
});
return itemView;
}
public void runOnUiThread(Runnable runnable) {
// TODO Auto-generated method stub
}
}
现在当我点击按钮时发生的事情应用程序将停止，就像它悬挂但实际上在那个时候在背景中
HashMap<String, String> users = session.getUserDetails();
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("customer_id", users
.get(UserSessionManager.KEY_CUSTOMER_ID)));
params.add(new BasicNameValuePair("product_id", resultp
.get(wishlist.TAG_product_id)));
params.add(new BasicNameValuePair("qty", "1"));
JSONObject json = jsonpd.makeHttpRequest(addtocartz, "POST",
params);
pDialog.dismiss();
Toast.makeText(context, "Product successfully added to cart",
Toast.LENGTH_LONG).show();
上面的代码正在运行，此过程执行后我可以再次正常访问此应用程序。
希望现在可以清楚我的问题。
答案 0 :(得分：0)
从runOnUiThread
doInBackground
protected String doInBackground(String... params) {
try {
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("name", "xyz"));
JSONObject json = jsonpd.makeHttpRequest(url, "POST",
params);
Log.d("Single user Details", json.toString());
// JSONObject mainJson = new
// JSONObject(json.toString());
JSONArray json_contents = json.getJSONArray("Success");
for (int i = 0; i < json_contents.length(); i++) {
JSONObject c = json_contents.getJSONObject(i);
// tv.setVisibility(View.GONE);
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_name, c.getString(TAG_name));
map.put(TAG_image, c.getString(TAG_image));
map.put(TAG_product_id, c.getString(TAG_product_id));
map.put(TAG_des, c.getString(TAG_des));
map.put(TAG_price, c.getString(TAG_price));
arraylist.add(map);
}
} catch (Exception e) {
tv.setVisibility(View.VISIBLE);
}
return null;
}