弹出框 ----有动画效果----在控件下方弹出

<?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">

<RelativeLayout
android:layout_width="70dp"
android:layout_height="130dp"
android:background="@drawable/yjb_ms_bottom_circular_red_background_for_view">

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="1dp"
android:layout_marginLeft="1dp"
android:layout_marginRight="1dp"
android:background="@drawable/yjb_ms_bottom_circular_white_background_for_view"
android:orientation="vertical">

<ImageView
android:layout_width="match_parent"
android:layout_height="10dp"
android:background="#efefef"
android:scaleType="fitXY"
android:src="@drawable/yjb_ms_top_drawable" />

<TextView
android:id="@+id/tv_create_resume"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:drawableBottom="@drawable/yjb_ms_divider_for_horizontal"
android:gravity="center"
android:text="关闭"
android:textColor="#000000"
android:textSize="16dp" />

<TextView
android:id="@+id/tv_paste_resume"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:drawableBottom="@drawable/yjb_ms_divider_for_horizontal"
android:gravity="center"
android:text="关闭"
android:textColor="#000000"
android:textSize="16dp" />

<!--<TextView-->
<!--android:id="@+id/tv_guide_into_resume"-->
<!--android:layout_width="match_parent"-->
<!--android:layout_height="0dp"-->
<!--android:layout_weight="1"-->
<!--android:gravity="center"-->
<!--android:text="导入"-->
<!--android:textColor="#000000"-->
<!--android:textSize="16dp" />-->

</LinearLayout>
</RelativeLayout>
</LinearLayout>

private void getData() {
button= (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
showUserOperationMenu();
}
});

//获取屏幕显示密度
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
mDensity = metrics.density;
}

/**
* 显示用户操作弹窗
*/
private void showUserOperationMenu() {

//加载弹窗的布局XML文件
View pwView = LayoutInflater.from(this).inflate(R.layout.yjb_ms_pw_menu_for_user_want_to_do, null);
//初始化弹窗中的控件
TextView tvCreatingResume = (TextView) pwView.findViewById(R.id.tv_create_resume);
TextView tvPasteResume = (TextView) pwView.findViewById(R.id.tv_paste_resume);
//        TextView tvGuideIntoResume = (TextView) pwView.findViewById(R.id.tv_guide_into_resume);
// 创建弹窗，popupwindow中的listview能响应事件需将touchable和focusable均设为true才行！！！
final PopupWindow pwForUserOperationMenu = new PopupWindow(pwView, ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT, true);

//为各控件设置点击监听

tvCreatingResume.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//      关闭弹框
pwForUserOperationMenu.dismiss();
}
});

tvPasteResume.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//      关闭弹框
pwForUserOperationMenu.dismiss();
}
});

// 点击外部后，窗口消失
pwForUserOperationMenu.setBackgroundDrawable(new BitmapDrawable(getResources(), BitmapFactory.decodeFile(null)));// 必不可少！！！
pwForUserOperationMenu.setOutsideTouchable(true);

//给弹窗设置动画
pwForUserOperationMenu.setAnimationStyle(R.style.scale_y_animation_for_popupwindow);

// 显示弹窗    屏幕密度乘以负数 往左偏移 反之向右
pwForUserOperationMenu.showAsDropDown(button, (int) (10 * mDensity), 0);
}