自定義上下文對話框

如下是一種方法，還有一種方法：http://www.cnblogs.com/and_he/archive/2011/09/16/2178716.html

public class MyContextDialog extends Dialog {

    public MyContextDialog(Context context) {
        super(context);
    }

    public MyContextDialog(Context context, int theme) {
        super(context, theme);
    }

    public static class Builder {
        private Context context;
        private String title;
        private String[] contextItem;private View contentView;

        private AdapterView.OnItemClickListener itemListener;

        public Builder(Context context) {
            this.context = context;
        }

        public Builder setTitle(int title) {
            this.title = (String) context.getText(title);
            return this;
        }

        public Builder setTitle(String title) {
            this.title = title;
            return this;
        }

        public Builder setItems(String[] contextItem,
                AdapterView.OnItemClickListener listener) {
            this.contextItem = contextItem;
            this.itemListener = listener;
            return this;
        }

        public Builder setContentView(View v) {
            this.contentView = v;
            return this;
        }

        public MyContextDialog create() {
            LayoutInflater inflater = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            final MyContextDialog dialog = new MyContextDialog(context,
                    R.style.MyDialogs);
            View layout = inflater.inflate(R.layout.dialog_context, null);
            dialog.addContentView(layout, new LayoutParams(
                    LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
            ((TextView) layout.findViewById(R.id.dialog_tv_title))
                    .setText(title);
            ListView lv = (ListView) layout
                    .findViewById(R.id.dialog_context_list);
            ArrayAdapter<String> adapter = new ArrayAdapter<String>(context,
                    R.layout.dialog_listitem, contextItem);
            lv.setAdapter(adapter);

            lv.setOnItemClickListener(new OnItemClickListener() {

                @Override
                public void onItemClick(AdapterView<?> parent, View view,
                        int position, long ids) {
                    itemListener.onItemClick(parent, view, position, ids);
                    dialog.dismiss();
                }
            });

            dialog.setContentView(layout);
            return dialog;
        }
    }
}