PopupWindow从底部划入划出

1.动画animation_in.xml:

<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>

2.动画animation_out.xml:

<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="500"
android:fromYDelta="0"
android:toYDelta="50%p" />
<alpha
android:duration="200"
android:fromAlpha="1.0"
android:toAlpha="0.0" />
</set>

3.style中设置动画：

<style name="take_photo_anim" parent="android:Animation">
<item name="android:windowEnterAnimation">@anim/pop_enter_anim</item>
<item name="android:windowExitAnimation">@anim/pop_exit_anim</item>
</style>

4.主Activity中：

initPopuWindow();

private void initPopuWindow() {
LayoutInflater layoutInflater = LayoutInflater.from(StudentAttributeSettingActivity.this);
popupWindow = layoutInflater.inflate(R.layout.spinner_item, null);//spinner_item为PopupWindow中需要加载的布局
pop = new PopupWindow(popupWindow, ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT, false);
// 需要设置一下此参数，点击外边可消失
pop.setBackgroundDrawable(new BitmapDrawable());

// 设置点击窗口外边窗口消失
pop.setOutsideTouchable(true);
// 设置此参数获得焦点，否则无法点击
pop.setFocusable(true);
pop.setAnimationStyle(R.style.take_photo_anim);//style中的动画风格

}

在需要调用popupWindow的地方添加：

pop.showAtLocation(findViewById(R.id.ll_setting_student), Gravity.RIGHT | Gravity.BOTTOM, 0, 0);

即可，需要注意的是popupWindow中的布局高度应该自适应获得获得此空间的高度，根据此高度设置动画平移的距离。