对我来说有用的是创建DialogFragment并将其设置为不可取消:

dialog.setCancelable(false);

这是对你所有问题的完美回答....希望你喜欢用Android编程

new AlertDialog.Builder(this)
            .setTitle("Akshat Rastogi Is Great")
            .setCancelable(false)
            .setMessage("I am the best Android Programmer")
            .setPositiveButton("I agree", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.dismiss();

                }
            })
            .create().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

你实际上有一个活动(即使它看起来像一个对话框)，因此你应该调用setFinishOnTouchOutside(false)从你的活动，如果你想保持它打开时，后台活动被单击。

编辑:这只适用于android API级别11或更高

以下是我的解决方案:

AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Select The Difficulty Level");
builder.setCancelable(false);

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();
}