如圖，點選操作，出現,效果是螢幕先變暗，然後底部從先往上彈出，點選螢幕其他地方，popupWindow消失，螢幕恢復原樣。好，直接看程式碼，以前專案中做過的，沒有拆分出來，新手第一次，見諒！
操作按鈕的點選事件：

setRightButtonOnClickListener(0, 0, new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                backgroundAlpha(0.5f);
                showPopwindow();
            }
        });
 

改變螢幕透明度的方法：

 public void backgroundAlpha(float bgAlpha)  
    {  
        WindowManager.LayoutParams lp = getWindow().getAttributes();  
                lp.alpha = bgAlpha; //0.0-1.0  
                getWindow().setAttributes(lp);  
    }

自定義的popupWindow:

@SuppressLint("InflateParams")
    protected void showPopwindow() {
        LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT
 
_INFLATER_SERVICE); 
        View view = inflater.inflate(R.layout.caozuo_popupwindow, null);
        LinearLayout ll = (LinearLayout) view.findViewById(R.id.popWindow);
        ll.setFocusableInTouchMode(true);
        ll.setOnKeyListener(new OnKeyListener() {

            @Override
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (keyCode == KeyEvent.KEYCODE
 
_MENU || keyCode == KeyEvent.KEYCODE_BACK) {
                    if (!menuFlg) {
                        popWindow.dismiss();
                    }
                    menuFlg = false;

                }
                return false;
            }
        });
        first = (TextView) view.findViewById(R.id.first);
        TextView second = (TextView) view.findViewById(R.id.second);
        TextView third = (TextView) view.findViewById(R.id.third);
        TextView four = (TextView) view.findViewById(R.id.four);
        if("1".equals(MyApplication.getInstance().isConcerned)){
            first.setTextColor(MyApplication.getAppContext().getResources().getColor(R.color.red));
            first.setText("取消特別關注");
        }else{
            first.setTextColor(MyApplication.getAppContext().getResources().getColor(R.color.black));
            first.setText("特別關注");
        }

        popWindow = new PopupWindow(view, WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.WRAP_CONTENT);
        popWindow.setFocusable(true);

        ColorDrawable dw = new ColorDrawable(0xb0808080);
        popWindow.setBackgroundDrawable(dw);

        popWindow.setAnimationStyle(R.style.caozuo_popuwindow);
        popWindow.showAtLocation(CustomerDetailActivity.this.findViewById(R.id.img_back), Gravity.BOTTOM, 0, 0);

        first.setOnClickListener(new OnClickListener() {

            @SuppressLint("ShowToast")
            @Override
            public void onClick(View v) {

                String firstr = first.getText().toString();
                if("特別關注".equals(firstr)){
                    initGuanZhuFirst();// 增加關注的方法
                    popWindow.dismiss();

                }if("取消特別關注".equals(firstr)){
                    initQuXiaoFirst();// 取消關注的方法0
                    popWindow.dismiss();

                }

//              window.dismiss();

            }
        });
        second.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_CALL,Uri.parse("tel:"+MyApplication.getInstance().phone_ex));  //撥打電話
                startActivity(intent);
            }
        });
        third.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.parse("smsto:"+MyApplication.getInstance().phone_ex)); //傳送簡訊           
//              intent.putExtra("sms_body", message);            
                startActivity(intent); 

            }
        });
        four.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                popWindow.dismiss();
            }
        });
        popWindow.setOnDismissListener(new OnDismissListener() {

            @Override
            public void onDismiss() {

                backgroundAlpha(1f);
            }
        });
    }

注意一點，popupWindow消失，螢幕透明度要恢復。其中自定義popupWindow,只需要載入自己想要的佈局檔案，以及動畫效果就可以了。
自定義的佈局檔案：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/popWindow"
    android:orientation="vertical" >

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="182dp"
        android:layout_gravity="bottom"
        android:layout_marginBottom="20dp" >

        <TextView
            android:id="@+id/four"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:layout_marginBottom="10dp"
            android:layout_alignParentBottom="true"
            android:layout_marginLeft="20dp"
            android:layout_marginRight="20dp"
            android:background="@drawable/login_edit"
            android:gravity="center"
            android:text="取消"
             android:textColor="@color/font_black"
            />

        <TextView
            android:id="@+id/third"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:layout_above="@+id/four"
            android:layout_marginLeft="20dp"
            android:layout_marginRight="20dp"
            android:layout_marginBottom="18dp"
            android:background="@drawable/login_edit"
            android:gravity="center"
            android:text="傳送簡訊"
            android:textColor="@color/font_black"
             />

        <TextView
            android:id="@+id/second"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:layout_above="@+id/third"
            android:layout_marginLeft="20dp"
            android:layout_marginRight="20dp"
            android:background="@drawable/login_edit"
            android:gravity="center"
            android:text="撥打電話"
             android:textColor="@color/font_black"
            />

        <TextView
            android:id="@+id/first"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:layout_above="@+id/second"
            android:layout_marginLeft="20dp"
            android:layout_marginRight="20dp"
            android:background="@drawable/login_edit"
            android:gravity="center"
            android:text="特別關注"
            android:textColor="@color/font_black"
            />

    </RelativeLayout>

</LinearLayout>

之後就是簡單的消失及出現的動畫：寫在values–>styles.xml中，

<style name="caozuo_popuwindow">  
        <item name="android:windowEnterAnimation">@anim/zlpopshow_anim</item>  
        <item name="android:windowExitAnimation">@anim/zlpophidden_anim</item>  
</style>

之後就是簡單的anim動畫，

隱藏的：

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
    android:duration="200"
    android:fromYDelta="100%p"
    android:toYDelta="0" />

  <alpha
    android:duration="500"
    android:fromAlpha="0.0"
    android:toAlpha="1.0" />
</set>

顯現的：

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
    android:duration="200"
    android:fromYDelta="100%p"
    android:toYDelta="0" />

  <alpha
    android:duration="500"
    android:fromAlpha="0.0"
    android:toAlpha="1.0" />
</set>

可加我Q598787663,一起探討進步，部落格也會常更新，大家及時關注。