[android] How to show progress dialog in Android?

I want to show ProgressDialog when I click on Login button and it takes time to move to another page. How can I do this?

ProgressDialog is now officially deprecated in Android O. I use DelayedProgressDialog from https://github.com/Q115/DelayedProgressDialog to get the job done.

Usage:

DelayedProgressDialog progressDialog = new DelayedProgressDialog();
progressDialog.show(getSupportFragmentManager(), "tag");

Point one you should remember when it comes to Progress dialog is that you should run it in a separate thread. If you run it in your UI thread you'll see no dialog.

If you are new to Android Threading then you should learn about AsyncTask. Which helps you to implement a painless Threads.

sample code

private class CheckTypesTask extends AsyncTask<Void, Void, Void>{
        ProgressDialog asyncDialog = new ProgressDialog(IncidentFormActivity.this);
        String typeStatus;


        @Override
        protected void onPreExecute() {
            //set message of the dialog
            asyncDialog.setMessage(getString(R.string.loadingtype));
            //show dialog
            asyncDialog.show();
            super.onPreExecute();
        }

        @Override
        protected Void doInBackground(Void... arg0) {

            //don't touch dialog here it'll break the application
            //do some lengthy stuff like calling login webservice

            return null;
        }

        @Override
        protected void onPostExecute(Void result) {
            //hide the dialog
            asyncDialog.dismiss();

            super.onPostExecute(result);
        }

}

Good luck.

ProgressDialog is deprecated since API 26

still you can use this:

public void button_click(View view)
{
    final ProgressDialog progressDialog = ProgressDialog.show(Login.this,"Please Wait","Processing...",true);
}

Simple Way :

ProgressDialog pDialog = new ProgressDialog(MainActivity.this); //Your Activity.this
pDialog.setMessage("Loading...!");
pDialog.setCancelable(false);
pDialog.show();

  final ProgressDialog loadingDialog = ProgressDialog.show(context,
     "Fetching BloodBank List","Please wait...",false,false);  // for  showing the 
    // dialog  where context is the current context, next field is title followed by
    // message to be shown to the user and in the end intermediate field
    loadingDialog.dismiss();// for dismissing the dialog 

for more info Android - What is difference between progressDialog.show() and ProgressDialog.show()?

Declare your progress dialog:

ProgressDialog progressDialog;  

To start the progress dialog:

progressDialog = ProgressDialog.show(this, "","Please Wait...", true);  

To dismiss the Progress Dialog :

 progressDialog.dismiss();

Simple coding in your activity like below:

private ProgressDialog dialog = new ProgressDialog(YourActivity.this);    
dialog.setMessage("please wait...");
dialog.show();
dialog.dismiss();

Step 1:Creata a XML File

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">


    <Button
        android:id="@+id/btnProgress"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="Progress Dialog"/>
</LinearLayout>

Step 2:Create a SampleActivity.java

package com.scancode.acutesoft.telephonymanagerapp;


import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class SampleActivity extends Activity implements View.OnClickListener {
    Button btnProgress;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btnProgress = (Button) findViewById(R.id.btnProgress);
        btnProgress.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {

        final ProgressDialog progressDialog = new ProgressDialog(SampleActivity.this);
        progressDialog.setMessage("Please wait data is Processing");
        progressDialog.show();

//        After 2 Seconds i dismiss progress Dialog

        new Thread(){
            @Override
            public void run() {
                super.run();
                try {
                    Thread.sleep(2000);
                    if (progressDialog.isShowing())
                        progressDialog.dismiss();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }.start();
    }
}

        final ProgressDialog progDailog = ProgressDialog.show(Inishlog.this, contentTitle, "even geduld aub....", true);//please wait....

        final Handler handler = new Handler() {
            @Override
            public void handleMessage(Message msg) {
                Barcode_edit.setText("");
                showAlert("Product detail saved.");


            }

        };

        new Thread() {
            public void run() {
                try {
         } catch (Exception e) {

                }
                handler.sendEmptyMessage(0);
                progDailog.dismiss();
            }
        }.start();

when you call in oncreate()

new LoginAsyncTask ().execute();

Here how to use in flow..

ProgressDialog progressDialog;

  private class LoginAsyncTask extends AsyncTask<Void, Void, Void> {
  @Override
    protected void onPreExecute() {
        progressDialog= new ProgressDialog(MainActivity.this);
        progressDialog.setMessage("Please wait...");
        progressDialog.show();
        super.onPreExecute();
    }

     protected Void doInBackground(Void... args) {
        // Parsse response data
        return null;
     }

     protected void onPostExecute(Void result) {
        if (progressDialog.isShowing())
                        progressDialog.dismiss();
        //move activity
        super.onPostExecute(result);
     }
 }

ProgressDialog dialog = 
   ProgressDialog.show(yourActivity.this, "", "Please Wait...");

This is the good way to use dialog

private class YourAsyncTask extends AsyncTask<Void, Void, Void> {

   ProgressDialog dialog = new ProgressDialog(IncidentFormActivity.this);

   @Override
    protected void onPreExecute() {
        //set message of the dialog
        dialog.setMessage("Loading...");
        //show dialog
        dialog.show();
        super.onPreExecute();
    }

   protected Void doInBackground(Void... args) {
    // do background work here
    return null;
   }

   protected void onPostExecute(Void result) {
     // do UI work here
     if(dialog != null && dialog.isShowing()){
       dialog.dismiss()
     }

  }
}

ProgressDialog pd = new ProgressDialog(yourActivity.this);
pd.show();

To use ProgressDialog use the below code

ProgressDialog progressdialog = new ProgressDialog(getApplicationContext());
progressdialog.setMessage("Please Wait....");

To start the ProgressDialog use

progressdialog.show();

progressdialog.setCancelable(false); is used so that ProgressDialog cannot be cancelled until the work is done.

To stop the ProgressDialog use this code (when your work is finished):

progressdialog.dismiss();`

ProgressDialog pd = new ProgressDialog(yourActivity.this);
pd.setMessage("loading");
pd.show();

And that's all you need.