如何在Android的弹出窗口中实现垂直滚动？

Question

I've tried with a piece of code but it is not displaying vertical scroll bar. my code is pasted below:

     public void init() {
        popupButton = (Button) findViewById(R.id.textview1);
        popupText = new TextView(this);
        insidePopupButton = new Button(this);
        layoutOfPopup = new LinearLayout(this);
        LinearLayout lt=new LinearLayout(this);
        view=new ScrollView(this);
        insidePopupButton.setText("OK");
        popupText.setText("This is Popup Window.press OK to dismiss   it.");
        popupText.setBackgroundColor(Color.WHITE);
        popupText.setPadding(0, 0, 0, 20);
        layoutOfPopup.setOrientation(1);
        lt.addView(popupText);
        layoutOfPopup.addView(insidePopupButton,350,35);

        layoutOfPopup.setBackgroundColor(Color.BLACK);
        view.addView(lt);
        layoutOfPopup.addView(view);

Thank you in advance..:)

Answer 1

ScrollView cannot be combine with popupWindow in android, no matter what. Sad but true.

Answer 2

You need to add your views in this way:

LinearLayout linearLayout = new LinearLayout(this);

// add all your views to linearLayout(or RelativeLayout)
linearLayout.addView(popupText);
linearLayout.addView(insidePopupButton); 

// add linearLayout to ScrollView instance
view.addView(linearLayout);

// add ScrollView instance to main layout
layoutOfPopup.addView(view);

ScrollView is a single element container.