Android上的密码提示 [英] password prompt on android

问题描述

我正在尝试输入密码提示，当用户输入错误的密码时，它将显示一个对话框，要求取消"或重试"，当用户单击重试"时，它将再次显示密码提示.

I am trying to make a password prompt, when user entered a wrong password, it will show a dialog asking to "cancel" or "retry" and when the user clicks on "retry", it will display the password prompt again.

下面是说明我的意思的图像

Below are images to illustrate what I meant

这就是我的做法

 /** RETRIEVE VIEW FROM DIALOGPROMPT.XML AND SET VIEW AS AN ALERTDIALOG BUILDER **/
                LayoutInflater li = LayoutInflater.from(context);
                View promptsView = li.inflate(R.layout.searchprompt, null);
                AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(context);
                alertDialogBuilder.setView(promptsView);

                final EditText userInput = (EditText) promptsView
                        .findViewById(R.id.user_input);


                // set dialog message
                alertDialogBuilder
                    .setCancelable(false)
                    .setNegativeButton("Go",
                      new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,int id) {
                            /** DO THE METHOD HERE WHEN PROCEED IS CLICKED*/
                            String user_text = (userInput.getText()).toString();

                            /** CHECK FOR USER'S INPUT **/
                            if (user_text.equals("oeg"))
                            {
                                Log.d(user_text, "HELLO THIS IS THE MESSAGE CAUGHT :)");
                                Search_Tips(user_text); 

                            }
                            else{
                                Log.d(user_text,"string is empty");
                                String message = "The password you have entered is incorrect." + " \n" + "Please try again";
                                AlertDialog.Builder builder = new AlertDialog.Builder(context);
                                builder.setTitle("Error");
                                builder.setMessage(message);
                                builder.setPositiveButton("Cancel", null);
                                builder.setNegativeButton("Retry", null);
                                builder.create().show();

                            }
                            }
                      })
                    .setPositiveButton("Cancel",
                      new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,int id) {
                        dialog.cancel();
                        }
                      });

                // create alert dialog
                AlertDialog alertDialog = alertDialogBuilder.create();

                // show it
                alertDialog.show();

            }
        });

有人知道怎么做吗?

推荐答案

我已经解决了自己的问题.我为警报对话框制作了一个方法，然后当我单击重试"时，我将再次调用该方法. :)

I have solved my own problem. I made a method for my alert dialog and then when I click on "retry", i will call the method again. :)

public void showDialog()
{

    LayoutInflater li = LayoutInflater.from(context);
    View promptsView = li.inflate(R.layout.searchprompt, null);
    final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(context);
    alertDialogBuilder.setView(promptsView);

    final EditText userInput = (EditText) promptsView
            .findViewById(R.id.user_input);


    // set dialog message
    alertDialogBuilder
        .setCancelable(false)
        .setNegativeButton("Go",
          new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog,int id) {
                /** DO THE METHOD HERE WHEN PROCEED IS CLICKED*/
                String user_text = (userInput.getText()).toString();

                /** CHECK FOR USER'S INPUT **/
                if (user_text.equals("oeg"))
                {
                    Log.d(user_text, "HELLO THIS IS THE MESSAGE CAUGHT :)");
                    Search_Tips(user_text); 

                }
                else{
                    Log.d(user_text,"string is empty");
                    String message = "The password you have entered is incorrect." + " \n \n" + "Please try again!";
                    AlertDialog.Builder builder = new AlertDialog.Builder(context);
                    builder.setTitle("Error");
                    builder.setMessage(message);
                    builder.setPositiveButton("Cancel", null);
                    builder.setNegativeButton("Retry", new DialogInterface.OnClickListener() {
                        @Override
                       public void onClick(DialogInterface dialog, int id) {
                            showDialog();
                       }
                   });
                    builder.create().show();

                }
                }
          })
        .setPositiveButton("Cancel",
          new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog,int id) {
            dialog.dismiss();
            }

          }

        );

    // create alert dialog
    AlertDialog alertDialog = alertDialogBuilder.create();

    // show it
    alertDialog.show();

}

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