PopMenu.java 文件源码

private void init() {
    LinearLayout view = new LinearLayout(context);
    view.setOrientation(LinearLayout.VERTICAL);
    view.setGravity(Gravity.CENTER_HORIZONTAL);
    view.setBackgroundColor(Color.rgb(224, 224, 224));
    view.setPadding(1, 1, 1, 1);
    listView = new ListView(context);
    adapter = new PopAdapter();
    listView.setAdapter(adapter);
    listView.setCacheColorHint(0x00000000);
    listView.setDivider(new ColorDrawable(0xe0e0e0));
    listView.setDividerHeight(1);
    if (this.config != null && this.config.getBackground_resId() != 0) {
        listView.setBackgroundResource(this.config.getBackground_resId());
    } else {
        listView.setBackgroundColor(Color.rgb(224, 224, 224));
    }
    LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
            ViewGroup.LayoutParams.MATCH_PARENT,
            ViewGroup.LayoutParams.MATCH_PARENT);
    LinearLayout.LayoutParams layoutParams1 = new LinearLayout.LayoutParams(
            ViewGroup.LayoutParams.WRAP_CONTENT,
            ViewGroup.LayoutParams.WRAP_CONTENT);
    view.addView(listView, layoutParams);
    if (this.config != null && this.config.getWidth() > 0) {
        popupWindow = new PopupWindow(view, this.config.getWidth(),
                LayoutParams.WRAP_CONTENT);
    } else {
        // 为了自适应长度添加
        TextView text = new TextView(context);
        text.setHeight(0);
        text.setText("图片的空" + getMostItemText());
        text.setTextSize(16);
        text.setPadding(5, 5, 5, 5);
        view.addView(text, layoutParams1);
        popupWindow = new PopupWindow(view, LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT);
    }
    if (dismissListener != null) {
        popupWindow.setOnDismissListener(dismissListener);
    }
    // 这个是为了点击“返回Back”也能使其消失，并且并不会影响你的背景（很神奇的）
    popupWindow.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
    // 使其聚集
    popupWindow.setFocusable(true);
    // 设置允许在外点击消失
    popupWindow.setOutsideTouchable(true);
    // 刷新状态
    popupWindow.update();
    popupWindow.setTouchInterceptor(new OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_OUTSIDE) {
                popupWindow.dismiss();
                return true;
            }
            return false;
        }

    });
    listView.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                long arg3) {
            // 获取该行的数据
            PopMenuItem popMenuItem = (PopMenuItem) listView.getAdapter()
                    .getItem(arg2);
            if (popMenuItem.listener != null) {
                popMenuItem.listener.onItemClick();
                dismiss();
            }
        }

    });
}