以前專案中也做過類似的東西，今天想到就寫一篇關於這樣的東西了，外面這一類的實現也很多，都可以借鑑，但是，謝了也就寫了，嗯！！
專案結構：

執行效果

完成了佈局的圓角，彈出彈出的動畫以及一系列監聽事件

主Activity

public class MainActivity extends Activity implements OnClickListener{
    Button showPopupWindow;
    TextView mServerLogin;
    TextView mSmsLogin;
    TextView mSmsCancel;
    View root;
    private
 
 PopupWindow popupWindow;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        showPopupWindow=(Button)findViewById(R.id.showPopupWindow);
        showPopupWindow.setOnClickListener(this
 
);
     // 父視窗view
        root = findViewById(R.id.root);
        //初始化
        initPopupWindow();

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected
 
(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.showPopupWindow:
                popupWindow.showAtLocation(root, Gravity.BOTTOM, 0, 0);
            break;
            case R.id.mServerLogin:
                Toast.makeText(MainActivity.this, "登入", Toast.LENGTH_SHORT).show();
                break;
            case R.id.mSmsLogin:
                Toast.makeText(MainActivity.this, "註冊", Toast.LENGTH_SHORT).show();
                break;
            case R.id.mSmsCancel:
                if (popupWindow.isShowing())
                    popupWindow.dismiss();
                break;
        default:
            break;
        }
    }

    public void initPopupWindow(){
        View view=getLayoutInflater().inflate(R.layout.dialog, null);
        mServerLogin = (TextView) view.findViewById(R.id.mServerLogin);
        mSmsLogin = (TextView) view.findViewById(R.id.mSmsLogin);
        mSmsCancel= (TextView) view.findViewById(R.id.mSmsCancel);
        mServerLogin.setOnClickListener(this);
        mSmsLogin.setOnClickListener(this);
        mSmsCancel.setOnClickListener(this);
        // 全屏顯示，將內容設定在底部
        popupWindow = new PopupWindow(view,ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.MATCH_PARENT);
        popupWindow.setOutsideTouchable(false);
        popupWindow.setFocusable(true);
        popupWindow.setBackgroundDrawable(new BitmapDrawable());
        popupWindow.setAnimationStyle(R.style.pop_animation);
    }
}

主佈局檔案

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.wjj.popupwindowdemo.MainActivity" 
    android:id="@+id/root"
    android:background="#DEB887">

    <Button
        android:id="@+id/showPopupWindow"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="showPopupWindow" 
        android:background="#40E0D0"/>
</LinearLayout>

彈出內容的佈局：

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

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:orientation="vertical" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"
            android:orientation="vertical" 
            android:background="@drawable/shape">

            <TextView
                android:id="@+id/mServerLogin"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center_horizontal"
                android:paddingBottom="8dp"
                android:paddingTop="8dp"
                android:text="登陸"
                android:textColor="#3995e1"
                android:textSize="16sp" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="0.5dp"
                android:background="#999999" >
            </LinearLayout>

            <TextView
                android:id="@+id/mSmsLogin"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center_horizontal"
                android:paddingBottom="8dp"
                android:paddingTop="8dp"
                android:text="註冊"
                android:textColor="#3995e1"
                android:textSize="16sp" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="0.5dp"
                android:background="#999999" >
            </LinearLayout>

            <TextView
                android:id="@+id/mSmsCancel"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center_horizontal"
                android:paddingBottom="8dp"
                android:paddingTop="8dp"
                android:text="取消"
                android:textColor="#3995e1"
                android:textSize="16sp" />
        </LinearLayout>
    </LinearLayout>

</RelativeLayout>

圓角的shape:xml

  <shape xmlns:android="http://schemas.android.com/apk/res/android"
      android:shape="rectangle" >
      <!-- 填充的顏色 -->
      <solid android:color="@color/white" />
      <!-- 設定矩形的四個角為弧形 -->
      <!-- android:radius 弧形的半徑 -->
      <corners android:radius="7dip" />
 </shape>

動畫效果（顯示出來）

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:shareInterpolator="false">
    <translate
        android:fromYDelta="100%p"
        android:toYDelta="0" 
        android:duration="300"
        />
    <alpha
        android:fromAlpha="0.7"
        android:toAlpha="1.0" 
        android:duration="120"
        />  
</set>

動畫效果（消失）

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:shareInterpolator="false">
    <translate
        android:fromYDelta="0"
        android:toYDelta="100%p" 
        android:duration="1300"
        />
    <alpha
        android:fromAlpha="1.0"
        android:toAlpha="0.5" 
        android:duration="800"
        />  
</set>

具體功能就看原始碼吧
原始碼地址：http://yunpan.cn/cdvQ9D772PnLd 訪問密碼 2112
今天寫的有點累。。。。。唉。。。蛋疼。。。
順便補充下，天津的消防員辛苦了。。唉。。。