alert.setCancelable(false);
        alert.setCanceledOnTouchOutside(false);

我想这对你有帮助。这对我很管用

builder.setCancelable(假);

Mensaje(视图v){

    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle("¿Quieres ir a el Menú principal?");
    builder.setMessage("Al presionar SI iras a el menú y saldras de la materia.");
    builder.setPositiveButton("SI", null);
    builder.setNegativeButton("NO", null);
    builder.setCancelable(false);
    builder.show();
}

Dialog dialog = new Dialog(context)
dialog.setCanceledOnTouchOutside(true); 
//use this to dismiss the dialog on outside click of dialog

dialog.setCanceledOnTouchOutside(false);
//use this for not to dismiss the dialog on outside click of dialog.

观看这个链接了解更多关于对话的细节。

dialog.setCancelable(false);
//used to prevent the dismiss of dialog on backpress of that activity

dialog.setCancelable(true);
//used to dismiss the dialog on onbackpressed of that activity

对于API > 11使用setFinishOnTouchOutside(false)，不要担心，因为它是android的默认行为，活动主题对话框不会在API < 11的外部触摸中完成:)!!

为了防止对话框在返回键按下时被取消，使用这个

dialog.setCancelable(false);

为了防止对话框在外部触摸时消失，使用这个

 dialog.setCanceledOnTouchOutside(false);

在jetpack组合中，使用遣散onclickoutside = false属性来防止关闭。

    AlertDialog(
        title = {
            Text("Title")
        },
        text = {
            Text(text = name)
        },
        onDismissRequest = onDismiss,
        confirmButton = {
            TextButton(onClick = onDismiss ) {
                Text("Yes")
            }
        },
        dismissButton = {
            TextButton(onClick = onDismiss ) {
                Text("Cancel")
            }
        },
        properties = DialogProperties(
            dismissOnClickOutside = false
        )
    )

}