我试图开发一种显示警告用户，不会让去任何地方弹出消息框（甚至不许走在主屏幕/菜单）。

I am trying to develop popup message box which shows warning to user and won't allow to go anywhere (even not allowed to go at home screen/menu).

我试图把按钮就可以了，直到我preSS该按钮，写用户名和密码，使用户不能去任何地方。

I'm trying to put button on it until I press on that button and write username and password, so that user can't go any where.

我应该中断或直接拨打到另一个活动？因为我想在1日的活动在完成任务后，要做到这一点上面的事，我想上面做旁边ativity流行的事情。

Should I interrupt or simply call to another activity? As I want to do this above thing after completing task on 1st activity, And I want do above pop thing on next ativity.

推荐答案

有关创建弹出像创建一个方法：

Create a method for creating that popup like :

public void showAlert() {

        /* Layout that is shown inside the alert */
        LayoutInflater factory = LayoutInflater.from(mContext);

        //create a layout that is shown inside ur popup and give its name over here
        final View calibrateView = factory.inflate(your layout, null);

        EditText username = (EditText)calibrateView.findViewById(R.id.username);
        EditText password = (EditText)calibrateView.findViewById(R.id.password);

        /* Creating the popup */
        AlertDialog.Builder alert = new AlertDialog.Builder(mContext);
        alert.setView(calibrateView);
        alert.setTitle(your title);
        alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {   

            public void onClick(DialogInterface dialog, int whichButton) {

                //check whether username and password is present over here.
                //if present give ur intent code for moving to the next activity
                //if absent, then create an alert showing the error msg
            }
         });

        alert.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {            
            /* called when AlertDialog "Cancel" button is pressed.  */
            public void onClick(DialogInterface dialog, int whichButton) {
            }
        });

        alert.create();
        alert.show();
    }