android DialogFragment从底部弹出

主要代码就是Dialog的style，而且windowAnimationStyle可以设置两次。

@Override public void onActivityCreated(Bundle savedInstanceState) {
		Window window = getDialog().getWindow();
		window.getDecorView().setPadding(0, 0, 0, 0);

		WindowManager.LayoutParams attributes = window.getAttributes();
		attributes.width = WindowManager.LayoutParams.MATCH_PARENT;
		attributes.height = WindowManager.LayoutParams.WRAP_CONTENT;
		attributes.dimAmount = 0.8f;
		attributes.gravity = Gravity.BOTTOM;
		window.setAttributes(attributes);
		super.onActivityCreated(savedInstanceState);
}

@NonNull @Override public Dialog onCreateDialog(Bundle savedInstanceState) {
		Dialog dialog = new Dialog(getActivity(), R.style.Dialog_Fullscreen_Bottom);
		dialog.setCanceledOnTouchOutside(true);
		return dialog;
}

<!--dialog从底部弹出-->
    <style name="Dialog_Fullscreen.Bottom">
        <item name="android:windowSoftInputMode">adjustResize</item>
        <item name="android:windowAnimationStyle">@style/bottomDialogStyle</item>
    </style>

    <style name="Dialog_Fullscreen">
        <item name="android:windowFullscreen">true</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:backgroundDimEnabled">true</item>
        <!-- 背景是否变灰 -->
        <item name="android:windowAnimationStyle">@style/centerDialogStyle</item>
        <!-- 背景动画-->
        <item name="android:windowFrame">@android:color/transparent</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:indeterminateOnly">true</item>
        <item name="android:windowIsFloating">true</item>
    </style>

<style name="centerDialogStyle">
        <item name="android:windowEnterAnimation">@android:anim/fade_in</item>
        <item name="android:windowExitAnimation">@android:anim/fade_out</item>
    </style>

    <style name="bottomDialogStyle">
        <item name="android:windowEnterAnimation">@anim/anim_bottom_dialog_in</item>
        <item name="android:windowExitAnimation">@anim/anim_bottom_dialog_out</item>
    </style>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:interpolator="@android:anim/accelerate_interpolator"
    >
    <translate
        android:duration="250"
        android:fillAfter="true"
        android:fromXDelta="0"
        android:fromYDelta="100%"
        android:toXDelta="0"
        android:toYDelta="0">

    </translate>
    <alpha
        android:duration="200"
        android:fromAlpha="0.0"
        android:toAlpha="1.0"/>
</set>

anim_bottom_dialog_in.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/accelerate_interpolator">
    <translate
        android:duration="250"
        android:fillAfter="true"
        android:fromXDelta="0"
        android:fromYDelta="0"
        android:toXDelta="0"
        android:toYDelta="100%">

    </translate>
    <alpha
        android:duration="200"
        android:fromAlpha="1.0"
        android:toAlpha="0.0" />
</set>

anim_bottom_dialog_out.xml