PopupWindow的使用，PopupWindow使用

PopupWindow的使用，PopupWindow使用

是

   

2種常用PopupWindow的使用

：http://download.csdn.net/detail/qq_29774291/9683258

第一個展示一個下拉的ListView

    /**     * 展示第一個彈窗     */    private ListView mListView;    private String[] itemStrings = {"第一個人啊","第二個人啊","第三個人啊","第四個人啊","第五個人啊","第六個人啊","第七個人啊"};    protected void setOnePoP() {        // TODO Auto-generated method stub        View contentView = View.inflate(this, R.layout.pop_list, null);        if(popup_one == null){            popup_one = new PopupWindow(contentView,btn_one.getWidth(),LayoutParams.WRAP_CONTENT,true);                    }        mListView = (ListView)contentView.findViewById(R.id.lv_pop_listview);        mListView.setAdapter(new MyAdapter(MainActivity.this, itemStrings));        popup_one.setFocusable(true);        popup_one.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));        popup_one.setOutsideTouchable(true);        popup_one.showAsDropDown(btn_one);    }    /**     * ListView的適配器     * @author Administrator     *     */    private class MyAdapter extends BaseAdapter{        private Context mContext;        private String [] item ;                public MyAdapter(Context mContext, String[] item) {            this.mContext = mContext;            this.item = item;        }        @Override        public int getCount() {            // TODO Auto-generated method stub            return item.length;        }        @Override        public Object getItem(int arg0) {            // TODO Auto-generated method stub            return null;        }        @Override        public long getItemId(int arg0) {            // TODO Auto-generated method stub            return 0;        }        @Override        public View getView(int arg0, View arg1, ViewGroup arg2) {            // TODO Auto-generated method stub            ViewHolder holder = null;            if(arg1 == null){                holder = new ViewHolder();                arg1 = View.inflate(mContext, R.layout.item_list, null);                holder.tv_name = (TextView)arg1.findViewById(R.id.item_tv_formname);                arg1.setTag(holder);            }else {                holder = (ViewHolder)arg1.getTag();            }            holder.tv_name.setText(item[arg0] + "");            return arg1;        }            }    static class ViewHolder{        private TextView tv_name;    }

第二個展示在下方展示一個彈窗，並設定螢幕透明度螢幕變暗的效果

代碼如下

    /**     * 在底部展示一個彈窗，並把介面的顏色變暗     */    protected void setTwoPoP() {        View view = View.inflate(MainActivity.this, R.layout.pop_two, null);        if(popup_two == null){            popup_two = new PopupWindow(view,LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT,true);        }        Button btn_dis = (Button)view.findViewById(R.id.btn_dis);        btn_dis.setOnClickListener(new View.OnClickListener() {                        @Override            public void onClick(View arg0) {                // TODO Auto-generated method stub                if(popup_two !=null && popup_two.isShowing()){                    popup_two.dismiss();                    backgroundAlpha(1f);                }            }        });        popup_two.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));        //展示一個動畫        popup_two.setAnimationStyle(R.style.popWindow_anim_style);        popup_two.setFocusable(true);        popup_two.setOutsideTouchable(true);        backgroundAlpha(0.5f);        popup_two.showAtLocation(MainActivity.this.getWindow().getDecorView(), Gravity.BOTTOM, 0, 0);        popup_two.setOnDismissListener(new PopupWindow.OnDismissListener() {                        @Override            public void onDismiss() {                // TODO Auto-generated method stub                backgroundAlpha(1f);            }        });    }    /**     * 設定添加螢幕的背景透明度     * @param bgAlpha     */    public void backgroundAlpha(float bgAlpha)      {          this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);        WindowManager.LayoutParams lp = this.getWindow().getAttributes();          lp.alpha = bgAlpha;        this.getWindow().setAttributes(lp);    }

第三對於第2中效過，用Dialog也可以實現，需要設定Dialog在螢幕的位置

    /**     * 顯示一個彈窗     */    @SuppressWarnings("deprecation")    private void showDialog(){        View view = View.inflate(PhotoActivity.this, R.layout.choose_photo_dialog, null);        final Dialog dialog = new Dialog(this, R.style.Dialog);                dialog.setContentView(view,new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));        Window window = dialog.getWindow();        window.setWindowAnimations(R.style.main_menu_animstyle);        WindowManager.LayoutParams wl = window.getAttributes();        wl.x = 0;        wl.y = getWindowManager().getDefaultDisplay().getHeight();        wl.width = ViewGroup.LayoutParams.MATCH_PARENT;        wl.height = ViewGroup.LayoutParams.WRAP_CONTENT;        dialog.onWindowAttributesChanged(wl);        dialog.setCanceledOnTouchOutside(true);        dialog.show();}

其中在TextView下展示添加一個底線

         

這個效果是使用圖層來實現的

<?xml version="1.0" encoding="utf-8"?><layer-list xmlns:android="http://schemas.android.com/apk/res/android">    <!-- 邊框顏色值 -->    <item>        <shape>            <solid android:color="#3547B1"/>        </shape>    </item>    <!-- 主體背景顏色值 -->    <item android:bottom="2dp">        <shape>            <solid android:color="#ffffff"/>            <padding                android:bottom="10dp"                android:left="10dp"                android:right="10dp"                android:top="10dp"/>        </shape>    </item></layer-list>