警报对话框标题和消息未显示 [英] Alert dialogue title and message are not shown

问题描述

我创建了警报对话框，但此处未显示标题和消息，这是我的警报对话框代码

i created alert dialogue but title and message are not shown here is my code for alert dialogue

holder.add.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            AlertDialog.Builder builder;
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                builder = new AlertDialog.Builder(context, android.R.style.Theme_Material_Dialog_Alert);
            } else {
                builder = new AlertDialog.Builder(context);
            }
            builder.setTitle("Alert");
            builder.setMessage("Are you sure")
                    .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {

                        }
                    })
                    .setNegativeButton("No", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                            // User cancelled the dialog
                        }
                    });
            AlertDialog dialog = builder.create();
            dialog.show();
        }
    });

这是它的屏幕截图

推荐答案

尝试使用 ActivityName.this .而不是 context .

这篇关于警报对话框标题和消息未显示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！