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

我想这对你有帮助。这对我很管用

也可以分配不同的动作实现onCancelListener:

alertDialog.setOnCancelListener(new DialogInterface.OnCancelListener(){                   
    @Override
    public void onCancel(DialogInterface dialogInterface) {
        //Your custom logic
    } 
});

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

将对话框可取消设置为false就足够了，并且您可以在警报对话框外触摸或单击后退按钮将使警报对话框消失。所以就用这个吧:

setCancelable(假)

另一个函数不再需要了: dialog.setCanceledOnTouchOutside(假);

如果你正在创建一个临时对话框，并想把这行代码放在那里，下面是一个例子:

new AlertDialog.Builder(this)
                        .setTitle("Trial Version")
                        .setCancelable(false)
                        .setMessage("You are using trial version!")
                        .setIcon(R.drawable.time_left)
                        .setPositiveButton(android.R.string.yes, null).show();

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();