Producing a Dialog that will be dismissed automatically

is it possible to create a Dialog that will be dismissed automatically after so开发者_JAVA百科me time if it doesn't have any user interaction?

You could use a Handler to automatically dismiss it.

In the class members:

private final int CANCEL_DIALOG = 1;
private Handler mHandler;
private Dialog mDialog;

In onCreate():

mHandler = new Handler(new Handler.Callback()
{
    @Override
    public boolean handleMessage(Message msg)
    {
        if(msg.what == CANCEL_DIALOG)
        {
            mDialog.cancel();
        }

        return false;
    }
});

On the button you use to open the dialog (or whatever system you use):

mDialog.show();
mHandler.sendEmptyMessageDelayed(CANCEL_DIALOG, 5000);

Essentially after 5 seconds, the dialog will close after it has opened using this code.

I got it finally by using Handler.

mHandler = new Handler(new Handler.Callback()
{
    @Override
    public boolean handleMessage(Message msg)
    {
        if(msg.what == CANCEL_DIALOG)
        {
            mDialog.cancel();
        }

        return false;
    }
});

mDialog.show();
mHandler.sendEmptyMessageDelayed(CANCEL_DIALOG, 5000);

Inside Dialog I have a ListView. In the scrollListener of that ListView I put:

mHandler.removeMessages(CANCEL_DIALOG);
mHandler.sendEmptyMessageDelayed(CANCEL_DIALOG, 5000);

You can use an activity as dialog box and then finish it after some time(as you want).

dialog.show();
final Timer t = new Timer();
t.schedule(new TimerTask() 
{
    public void run() 
    {
    dialog.dismiss(); // when the task active then close the dialog
    t.cancel(); // also just top the timer thread,otherwise, you may receive a crash report
    }
}, 2000);

You can use CountDownTimer

As simple as that.

 new CountDownTimer(5000, 1000) {

            public void onTick(long millisUntilFinished) {
            }

            public void onFinish() {
                 //Your AlertDialog.cancel
                dialog.cancel();
            }
        }.start();

final Timer t = new Timer();

            t.schedule(new TimerTask() {

                public void run() {

                    dlg.dismiss(); // when the task active then close the 
                                    // dialog(here we are dismissing the dialog)

                    t.cancel(); // also just top the timer thread,
                                // otherwise, you may receive a crash report

                }

            }, 2000);

Here we are creating the Timer object and scheduling the timer for 2 sec.once 2 sec over ,then it automatically calls run(), in run() we will write the logic to dismiss the dislog