自定義Dialog去除背景陰影

添加stytles樣式文件：

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="MyDialog" parent="@android:Theme.Dialog">
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowFrame">@null</item>
        <item name="android:windowTitleStyle">@null</item>
        <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
        <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
        <item name="android:backgroundDimEnabled">false</item>
        <item name="android:background">#00ffffff</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowBackground">@drawable/bg_dialog</item>
    </style>
</resources>

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