Android 列表对话框 setItems

    private button button;
    private final charsequence[] items = { "北京", "上海", "广州" };

    @override
    protected void oncreate(bundle savedinstancestate) {
        super.oncreate(savedinstancestate);
        setcontentview(r.layout.activity_main);

        button = (button) findviewbyid(r.id.button);

        button.setonclicklistener(new view.onclicklistener() {

            @override
            public void onclick(view v) {
                // todo auto-generated method stub

                alertdialog.builder builder = new alertdialog.builder(mainactivity.this);
                builder.settitle("请选择以下城市");
                // builder.setmessage("请选择以下城市"); // 使用setmessage会覆盖setitems内容

                builder.setitems(items, new onclicklistener() {

                    @override
                    public void onclick(dialoginterface dialog, int which) {
                        // todo auto-generated method stub
                        charsequence sequence = items[which];
                        toast.maketext(mainactivity.this, "select " + sequence, 1).show();
                    }
                });

                alertdialog dialog = builder.create();
                dialog.show();
            }
        });
    }