Android 弹出对话框Dialog充满屏幕宽度

        final View view = LayoutInflater.from(context).inflate(layoutId, null);

        final Dialog dialog = new Dialog(context, R.style.style_dialog);
        dialog.setContentView(view);
        dialog.show();

        Window window = dialog.getWindow();
        window.setGravity(Gravity.BOTTOM);
        window.setWindowAnimations(R.style.dialog_animation);
        window.getDecorView().setPadding(0, 0, 0, 0);

        WindowManager.LayoutParams lp = window.getAttributes();
        lp.width = WindowManager.LayoutParams.MATCH_PARENT;
        lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
        window.setAttributes(lp);

style_dialog:

<style name="style_dialog" parent="android:style/Theme.Dialog">
    <item name="android:windowBackground">@color/white</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:scrollHorizontally">true</item>
    </style>

dialog_animation:

    <style name="dialog_animation">
        <item name="android:windowEnterAnimation">@anim/enter</item>
     <item name="android:windowExitAnimation">@anim/exit</item>
    </style>

enter:

<?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"
        />

</set>

exit:

<?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="600"
        />

</set>