android - 我正在寻找用于客户端验证 Android 中登录页面的示例代码？？？能够？

Question

我试过各种代码，但是alert.对话框总是有问题，它没有出现，建议我一个简单的代码

Answer 1

private void alert(context,status,title,message)
{
     Builder alertDialog = new AlertDialog.Builder(context);

        // Setting Dialog Title
        alertDialog.setTitle(title);

        // Setting Dialog Message
        alertDialog.setMessage(message);

        if(status != null)
            // Setting alert dialog icon, success and fail is an image
            alertDialog.setIcon((status) ? R.drawable.success : R.drawable.fail);

        // Setting OK Button
        alertDialog.setPositiveButton("OK", new DialogInterface.OnClickListener()
        {
            public void onClick(DialogInterface dialog, int which)
            {
            }
        });

        // Setting Cancel Button
        alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener()
        {
            public void onClick(DialogInterface dialog, int which)
            {
            }
        });

        // Showing Alert Message
        alertDialog.show();

        }