Question

Here is my code:

chartDialog = new Dialog(item_activity.this);
                chartDialog.setContentView(R.layout.customlayout);
                chartDialog.setTitle("Title                      ");
                TextView textItemDetailsDialog = (TextView) chartDialog.findViewById(R.id.textItemDetailsDialog);
                textItemDetailsDialog.setText("Details");
                img = (ImageView) chartDialog.findViewById(R.id.ImageView001);
                img.setImageBitmap(bitmap);
                Button toMap = (Button)findViewById(R.id.button_toMap);
                toMap.setOnClickListener(new View.OnClickListener() {
                    public void onClick(View v) {
                        switchTabSpecial();
                    }
                });
                chartDialog.show();

However, it shows

03-26 23:30:10.822: E/AndroidRuntime(21394): java.lang.NullPointerException

at line:

toMap.setOnClickListener(new View.OnClickListener() {

Can I add a button in Dialog??
Please help…

Answer 1

As the Button is on the Dialog it should be as,

Button toMap = (Button)chartDialog.findViewById(R.id.button_toMap);