具有透明背景的Android对话框

Question

具有透明背景的Android对话框如何从Android对话框中删除黑色背景。图中显示了问题所在。final Dialog dialog = new Dialog(Screen1.this);dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);dialog.setContentView(R.layout.themechanger); 

Answer 1

添加以下代码

 dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));

编辑

dialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);

Answer 2

<style name="NewDialog">
    <item name="android:windowFrame">@null</item>
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:windowContentOverlay">@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">@android:color/transparent</item></style>

在java中使用

Dialog dialog = new Dialog(this, R.style.NewDialog);

希望能帮你！