Reputation: 451

How do I close an Android alertdialog

I am developing a quiz and I need the user to answer all the questions before proceeding. When the user has not answered all the questions I display a simple alertdialog informing him or her. The problem is whatever I do I can't get the alertdialog to close. Why isn't dialog.cancel working?`This is the code:

AlertDialog.Builder ad = new AlertDialog.Builder(this);  
ad.setTitle("Unanswered Questions");  
ad.setMessage("You have not answered all the questions.");   
ad.setPositiveButton("OK", new DialogInterface.OnClickListener() {  
   public void onClick(DialogInterface dialog, int id) {  
     dialog.cancel(); 
}  
});  
ad.show();

Upvotes: 45

Answers (16)

Prashant Malviya

Reputation: 1

AlertDialog.Builder ad = new AlertDialog.Builder(this);  
ad.setTitle("Unanswered Questions");  
ad.setMessage("You have not answered all the questions.");   
ad.setPositiveButton("OK", new DialogInterface.OnClickListener() {  
   public void onClick(DialogInterface dialog, int id) {  
     dialog.cancel(); 
}  
});
ad.create()
ad.show();

You didn't use ad.create() before ad.show();

Upvotes: -1

Dhrumil Shah - dhuma1981

Reputation: 15789

put this line in OnCreate()

Context mcontext = this;

and them use this variable in following code

final AlertDialog.Builder alert = new AlertDialog.Builder(mcontext);
alert.setTitle(title);
alert.setMessage(description);
alert.setPositiveButton("Ok",
    new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            dialog.cancel();
        }
    });
alert.show();

Try this code.. It is running successfully..

Upvotes: 11

AngryCubeDev

Reputation: 175

Just in case anyone was looking for the Kotlin version of this, it is as follows:

alertDialog.setPositiveButton(resources.getString(R.string.split_okay)) { 
    dialog, _ ->
        dialog.dismiss()
}

Upvotes: 2

PowerAktar

Reputation: 2428

The AlertDialog.Builder itself does not contain a dismiss() or cancel() method.

It is a convenience class to help you create a Dialog, which DOES have access to those methods.

Here is an example:

AlertDialog.Builder builder = new AlertDialog.Builder(this); 

AlertDialog alert = builder.create();

alert.show();

You can then call the alert.cancel() method on the alert (not the builder).

Upvotes: 91

nmirkov

Reputation: 59

If you already use positive and negative button (like I do in my project) you can use Neutral Button to close the dialog.

I also noticed that in Android version >5 the dialog is closed by clicking outside of dialog window but in older version this is not happening.

ad.setNeutralButton("CLOSE", new DialogInterface.OnClickListener(){
    @Override
    public void onClick(DialogInterface dialog, int which) {
        // close dialog
    }
});

Upvotes: -2

Peter Thaus

Reputation: 126

I tried the solution of PowerAktar, but the AlertDialog and the Builder always kept seperate parts. So how to get the "true" AlertDialog?

I found my solutions in the show-Dialog: You write

ad.show();

to display the dialog. In the help of show it says "Creates a AlertDialog with the arguments supplied to this builder and Dialog.show()'s the dialog." So the dialog is finally created here. The result of the show()-Command is the AlertDialog itself. So you can use this result:

AlertDialog adTrueDialog;
adTrueDialog = ad.show();

With this adTrueDialog it is possible to cancel() ...

adTrueDialog.cancel()

or to execute a buttons command within the dialog:

Button buttonPositive = adTrueDialog.getButton(Dialog.BUTTON_POSITIVE);
buttonPositive.performClick();

Upvotes: 0

shark1608

Reputation: 719

Replying to an old post but hopefully somebody might find this useful. Do this instead

final AlertDialog builder = new AlertDialog.Builder(getActivity()).create();

You can then go ahead and do,

builder.dismiss();

Upvotes: 5

user5082663

Reputation: 21

Use Dialog instead of AlertDialog

AlertDialog doesn't have dismiss() but AlertDialog has some methods for button like setPositiveButton().

I recommend to use Dialog if you want customized dialog.

Upvotes: 2

connect2krish

Reputation: 159

AlertDialog.Builder ad = new AlertDialog.Builder(this);  
ad.setTitle("Unanswered Questions");  
ad.setMessage("You have not answered all the questions.");   
ad.setPositiveButton("OK", new DialogInterface.OnClickListener() {  
   public void onClick(DialogInterface dialog, int id) {  
     dialog.dismiss(); 
}  
});  
ad.show();

Upvotes: 6

Vishal Bhadani

Reputation: 131

alertDialog.setPositiveButton("SAVE",
                new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        /*Write your code here */
                        dialog.dismiss();
                    }
                });
        alertDialog.setNegativeButton("CANCEL",
                new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();

                    }
                });

Upvotes: 0

The Hungry Androider

Reputation: 2291

AlertDialog.Builder builder = new AlertDialog.Builder(this); 
AlertDialog alert = builder.create(); 
alert.show();

The above code works but make sure you make alert a global variable so you can reach it from within the onClick method.

Upvotes: 2

Geng Jiawen

Reputation: 9154

you can simply restart the activity where your alertdialog appear or another activity depend on your judgement. if you want to restart activity use this finish(); startActivity(getIntent());

Upvotes: 0

user508412

Reputation: 469

try using

dialog.dismiss()

instead of using

dialog.cancel()

Upvotes: 33

Harneet Kaur

Reputation: 4497

final AlertDialog.Builder alert = new AlertDialog.Builder(mcontext);
alert.setTitle(title);
alert.setMessage(description);
alert.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
  @Override                                 
  public void onClick(DialogInterface dialog,int which) {
        cancelDialog(); //Implement method for canceling dialog
         }
   });
alert.show();
void cancelDialog()
{
   //Now you can either use  
   dialog.cancel();
    //or dialog.dismiss();
}

Upvotes: 1

Ben Taliadoros

Reputation: 9361

Use setNegative button, no Positive button required! I promise you'll win x

Upvotes: 11

ekatz

Reputation: 973

I would try putting a

Log.e("SOMETAG", "dialog button was clicked");

before the dialog.dismiss() line in your code to see if it actually reaches that section.

Upvotes: 1

How do I close an Android alertdialog

Answers (16)

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