Android Dialog and AlertDialog Example

A Dialog is a small that popup in front of main view, to make a user decision/action or enter additional information. In the example below we will show you how to create AlertDialog and Customise Dialog.

//AlertDialog

        final AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);

        //Set Custom view

        //LayoutInflater inflater = (LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        //View view = inflater.inflate(R.layout.yourView, null);

        //builder.setView(view);

        //Set Message

        alertDialog.setMessage("Would to like to delete this file?");

        

        //Customise Title

        TextView title = new TextView(this);

        title.setText("Alert Dialog");

        title.setBackgroundColor(Color.DKGRAY);

        title.setPadding(10, 10, 10, 10);

        title.setGravity(Gravity.CENTER);

        title.setTextColor(Color.WHITE);

        title.setTextSize(20);

        alertDialog.setCustomTitle(title);

        

        //Dialog Positive and negative buttons

        alertDialog.setPositiveButton(android.R.string.ok,new DialogInterface.OnClickListener() {

               public void onClick(DialogInterface dialog, int id) {

                   // User clicked OK button

               }

           });

        alertDialog.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {

               public void onClick(DialogInterface dialog, int id) {

                   // User cancelled the dialog

               }

           });

    

 

//Dialog

        final Dialog dialog = new Dialog(this);

        dialog.setContentView(R.layout.dialogview);

        TextView titleView = (TextView) dialog.findViewById(android.R.id.title);

        if(titleView != null) {

            titleView.setGravity(Gravity.CENTER);

            titleView.setTextColor(Color.WHITE);

            titleView.setTextSize(24);

            titleView.setTypeface(Typeface.DEFAULT_BOLD);

        }

        Window window = dialog.getWindow();

        window.setLayout(200, 100);

        dialog.setTitle("Choose One");

        dialog.setCancelable(true);