Question

我在操作栏上有一个菜单来更改密码。以下是它的代码。我想放置这段代码，以便我可以通过单击该菜单在我的应用程序中的任何位置调用相同的代码。有什么办法吗？ --- ChangingPassword.java ---

public void showDialog(final Context ctx, final String user_id, final String storedPass)
{

    LayoutInflater layoutInflater = LayoutInflater.from(ctx);
    View promptView = layoutInflater.inflate(R.layout.change_password, null);

    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(ctx);

    // set prompts.xml to be the layout file of the alertdialog builder
    alertDialogBuilder.setView(promptView);

    final EditText old_password = (EditText) promptView.findViewById(R.id.old_password);
    final EditText new_password = (EditText) promptView.findViewById(R.id.new_password);
    final EditText c_new_password = (EditText) promptView.findViewById(R.id.c_new_password);

    final int error_count;
    /*old_password.setTypeface(font);
    new_password.setTypeface(font);
    c_new_password.setTypeface(font);
    */
    final String old_pwd = old_password.getText().toString();
    final String new_pwd = new_password.getText().toString();
    final String c_new_pwd = c_new_password.getText().toString();
    // setup a dialog window
    alertDialogBuilder
            .setTitle("Change Login Password")
            .setNeutralButton("OK", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {

                           if(old_pwd.equalsIgnoreCase("") || (old_pwd.equalsIgnoreCase(storedPass)))
                            {
                                old_password.setError(Html.fromHtml("<font color='red'>Enter a valid password</font>"));
                                old_password.requestFocus();
                            }

                            else if( new_pwd.equalsIgnoreCase(""))
                            {
                                new_password.setError(Html.fromHtml("<font color='red'>Enter a valid password</font>"));
                                new_password.requestFocus();
                            }

                            else if( c_new_pwd.equalsIgnoreCase(""))
                            {
                                c_new_password.setError(Html.fromHtml("<font color='red'>Enter a valid password</font>"));
                                c_new_password.requestFocus();
                            }

                            else if(!new_pwd.equals(c_new_pwd))
                            {
                                c_new_password.setError(Html.fromHtml("<font color='red'>Password & Confirm Passwords do not match</font>"));
                                c_new_password.requestFocus();
                            }

                            else
                            {
                                try {

                                    UserTask task = new UserTask();
                                    String result = task.execute(new String[] {"changePassword",user_id,new_pwd}).get();
                                    System.out.print(result);
                                }

                                catch (Exception e)
                                {
                                    Toast.makeText(ctx, ""+e.toString(), Toast.LENGTH_LONG).show();
                                }
                            }
                        }
                    })
            .setNegativeButton("Cancel",
                    new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                            dialog.cancel();
                        }
                    });

            // create an alert dialog
            AlertDialog alertD = alertDialogBuilder.create();
            alertD.show();
            //return alertD;

}

---致电活动--- new ChangePassword（）。showDialog（TeacherMain.this，user_id，password）; return true;

Answer 1

public class MyDialog{
    public void showDialog(Context ctx)
    {
        /* Create dialog here and do whatever you are doing right now in your method*/
        dialog.show();
    }
}

并从您的活动类中调用，如下所示

new MyDialog().showDialog(ActivityName.this);

对于您的检查部分，您必须删除嵌套的if语句

if(old_pwd.equalsIgnoreCase("")){
        //print: Enter old password                                 
}else if( new_pwd.equalsIgnoreCase("")){
       //print: Enter new password 
}else if( c_new_pwd.equalsIgnoreCase("")){
      //print: Enter c_new_pwd 
}else if(! new_pwd.equals(c_new_pwd)){
      //print password doesnot match     
}else

{
            try {

                UserTask task = new UserTask();
                String result = task.execute(new String[] {"changePass",user_id}).get();
                 System.out.print(result);
            }catch (Exception e){
                  Toast.makeText(TeacherMain.this, ""+e.toString(),Toast.LENGTH_LONG).show();
            }


}

而不是创建新的AlertDialog使用 alertDialogBuilder.show（）;

Android在整个应用程序中调用相同的警报对话框

1 个答案: