Ok Button for Alert Dialog on Android

Question

This is my code for an alert, it shows a message when a button is pressed. How can I make an OK Button to dismiss?

    Button bm1 = (Button) findViewById(R.id.button1);     bm1.setOnClickListener(new View.OnClickListener() {                  @Override         public void onClick(View v) {             // TODO Auto-generated method stub             AlertDialog alert = new AlertDialog.Builder(screen4.this).create();             alert.setTitle("Doctor");             alert.setMessage("message");             alert.setCancelMessage(null);             alert.show();         }     }); }}       

I have put alert.setCancelMessage(null) but it doesn't show any button to dismiss.

Solution:

      Button bm1 = (Button) findViewById(R.id.button1);        bm1.setOnClickListener(new View.OnClickListener() {                  @Override         public void onClick(View v) {             // TODO Auto-generated method stub             Builder alert = new AlertDialog.Builder(screen4.this);             alert.setTitle("Doctor");             alert.setMessage("message");             alert.setPositiveButton("OK", null);             alert.show();         }     }); 

Answer 1

Change your alertdialog to this:

Builder alert = new AlertDialog.Builder(screen4.this); alert.setTitle("Doctor"); alert.setMessage("message"); alert.setPositiveButton("OK",null); alert.show();     

Answer 2

You can create both OK and cancel button for dialog using this,

AlertDialog.Builder builder = new AlertDialog.Builder(                         getApplicationContext());                 builder.setCancelable(true);                 builder.setTitle("Title");                 builder.setInverseBackgroundForced(true);                 builder.setPositiveButton("Yes",                         new DialogInterface.OnClickListener() {                             @Override                             public void onClick(DialogInterface dialog,                                     int which) {                                 dialog.dismiss();                             }                         });                 builder.setNegativeButton("No",                         new DialogInterface.OnClickListener() {                             @Override                             public void onClick(DialogInterface dialog,                                     int which) {                                 dialog.dismiss();                             }                         });                 AlertDialog alert = builder.create();                 alert.show();