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 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>

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

<?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>

<?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>