在其他进程正在运行时运行进度对话框

Question

I am trying to run a progress dialog while an other process is running, and I can't do it.

the process that I want run is this:

public void Onclick_editar (View view)
{
    float porc;
    String repre;
    try{
        porc = Float.parseFloat(edit_porcentaje.getText().toString());
        repre = edit_representante.getText().toString();
        try
        {
            Hilo hilo;
            hilo = new Hilo(2, "UPDATE eleccion SET porcentaje="+porc+", delegados='"+repre+"' WHERE id="+idd );
            hilo.start();
            while(hilo.isAlive()){}

            hilo = new Hilo(4, idd);
            hilo.start();
            while(hilo.isAlive()){}
            Toast.makeText(this, "¡Actualizada con éxito!", Toast.LENGTH_SHORT).show();

        }
        catch(SQLException e)
        {
            Toast.makeText(this, "Error: Fallo en la base de datos", Toast.LENGTH_SHORT).show();
        }                   
    }catch(Exception e)
    {
        Toast.makeText(this, "Rellena todos los campos", Toast.LENGTH_SHORT).show();
    }
}

this is launching when I click a button. thanks!

EDIT/////////////

well I solved the problem with this code!!

public void button(View v) {

     new waiting().execute();

}

  class waiting extends AsyncTask<String, Void, Boolean> {

      ProgressDialog progressdialog;
      protected void onPostExecute(Boolean result) {
             super.onPostExecute(result);
             progressdialog.dismiss();

         }

      protected void onPreExecute() {
          super.onPreExecute();
          // Shows Progress Bar Dialog and then call doInBackground method
          progressdialog = new ProgressDialog(Tab_adminver_modificar_eleccion.this);
          progressdialog.setTitle("Processing....");
          progressdialog.setMessage("Please Wait.....");
          progressdialog.setCancelable(false);
          progressdialog.show();         
      }
    @Override
    protected Boolean doInBackground(String... params) {
        try {
                                Thread.sleep(5000);

                            } catch (Exception e) {

                            }
        return null;
    }

  }

but I don't use a toast in a method doInBackground (FC)

Answer 1

Do you mean you are waiting for hilo to finish in this line : while(hilo.isAlive()){} ?

Use AsyncTask instead, make use of its onPostExecute

Answer 2

If your purpose is to show a ProgressDialog, then you can use this function for displaying a progress dialog-

public static void showProgressLoader(Context context, int duration)
{
    final ProgressDialog dialog = ProgressDialog.show(context, "", "Loading...");
    dialog.show();

    Handler handler = new Handler();
    handler.postDelayed(new Runnable()
    {
        public void run()
        {
            dialog.dismiss();
        }
    }, duration);
}

In this finction, pass the context and duration in milliseconds for which you want to show, after that duration it will get dissmissed by itself.

Answer 3

you can try like this your process will run in background and progress dialog will be executing as well but when process will complete progress dialog will dismiss..

public class asynTask1 extends AsyncTask<String, Void, Boolean> {

    public asynTask1 (MainActivity activiy) {
        context = activiy;
    }

    @Override
    protected void onPostExecute(Boolean result) {

        super.onPostExecute(result);

        progressdialog.dismiss(); 




    }

    @Override
    protected void onPreExecute() {

        super.onPreExecute();
        progressdialog = new ProgressDialog(Splash.this);
        progressdialog.setTitle("Processing....");
        progressdialog.setMessage("Please Wait.....");
        progressdialog.setCancelable(false);
        progressdialog.show();

    }

    @Override
    protected Boolean doInBackground(String... params) {

    // do process


}

U can call it onclick or also can onCreate .. it better to make separate class for asyntask1 and write new asynTask1(MainActivity.this).execute(); where you want to call it..

i hope it will helps ...

Answer 4

public void launchRingDialog(View view) {

    final ProgressDialog ringProgressDialog = ProgressDialog.show(MainActivity.this, "Please wait ...", "Downloading Image ...", true);

    ringProgressDialog.setCancelable(true);

    new Thread(new Runnable() {

        @Override

        public void run() {

            try {

                **// the MYSql consultation should be here?**

            } catch (Exception e) {



            }

            ringProgressDialog.dismiss();

        }

    }).start();