ProgressDailog in asynctask from another Activity - android-fragments

Question

I Have two Activity. The MainActivity is calling the another Activity which extends AsyncTask. In AsyncTask i had display ProgressDailog onPreExecute(), but ProgressDailog is not been display. The reason may be AyncTask execute for less time but the response but response takes time and therefore ProgressDialog should be displayed.
The Following code is provide.
Aysnc class
public class NewConnections extends AsyncTask<Void,Void,String>{
Context context;
String[] name,value;
String Geturl,para;
ProgressDialog progressDialog;
NewConnections(Context context,String[] name,String[] value,String Url){
this.context = context;
this.name = name;
this.value = value;
Geturl = Url;
}
#Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog = new ProgressDialog(context);
progressDialog.setMessage("Please Wait");
progressDialog.show();
}
#Override
protected String doInBackground(Void... voids) {
try
{
para = DCBUtil.jsonCovertion(name,value);
URL url = new URL(Geturl);
String responseStr = XXX.callJsonHttp(url,para);
System.out.println("Response of Home Open FD :: "+responseStr);
return responseStr;
}catch(Exception e)
{
return "Error";
}
}
#Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
progressDialog.dismiss();
}
}
MainClass
public class FirstPage extends AppCompatActivity {
Button existUser,newUser;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_first_page);
existUser = (Button)findViewById(R.id.existUser);
newUser = (Button)findViewById(R.id.newUser);
newUser.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String[] value = {"asdasd"};
String[] name = {"dprm"};
try {
NewConnections v= new NewConnections(FirstPage.this,name,value,"url is provided");
v.execute().get();
} catch (Exception e) {
e.printStackTrace();
}
}
});

Answer 1

try this :
public class NewConnections extends AsyncTask<Void,Void,String>{
Context context;
String[] name,value;
String Geturl,para;
public static ProgressDialog progressDialog;
NewConnections(Context context,String[] name,String[] value,String Url){
this.context = context;
this.name = name;
this.value = value;
Geturl = Url;
}
#Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog = new ProgressDialog(context);
progressDialog.setCancelable(false);
progressDialog.setMessage("Please Wait");
progressDialog.show();
}
#Override
protected String doInBackground(Void... voids) {
try
{
para = DCBUtil.jsonCovertion(name,value);
URL url = new URL(Geturl);
String responseStr = XXX.callJsonHttp(url,para);
System.out.println("Response of Home Open FD :: "+responseStr);
return responseStr;
}catch(Exception e)
{
return "Error";
}
}
#Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
if(progressDialog!=null)
progressDialog.dismiss();
}
}
and when you exit from activity then write below code in onDestry() method of that Activity
#Override
protected void onDestroy() {
if(NewConnections.progressDialog!=null)
NewConnections.progressDialog.dismiss();
super.onDestroy();
}

Answer 2

Try this:: I hope this helps you.
Dialog dialog;
#Override
protected void onPreExecute() {
super.onPreExecute();
showProgressBar();
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
try{
hideProgressBar();
}catch (Exception e){
e.printStackTrace();
}
}
public void showProgressBar() {
dialog = new Dialog(mContext, android.R.style.Theme_Translucent);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS,
WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
}
dialog.setCancelable(false);
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View viewChild = inflater.inflate(R.layout.loader, null);
dialog.setContentView(viewChild);
Runtime.getRuntime().gc();
System.gc();
try {
dialog.show();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
/**
* Hide progress dialog
*/
public void hideProgressBar() {
if (dialog != null && dialog.isShowing()) {
dialog.dismiss();
}
}
loader.xml::
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent"
android:gravity="center">
<ProgressBar
android:id="#+id/loading_spinner"
android:layout_width="48dp"
android:layout_height="48dp"
android:indeterminateTintMode="src_atop"
android:indeterminateTint="#color/colorAccent"
android:layout_gravity="center" />
</RelativeLayout>