Question

在显示时,我想使背景更加暗淡。就像海 Dolphin·布罗泽一样。

www.un.org/spanish/ecosoc 在PopupWindow之前

“Look

After the PopupWindow

“Andre

背景情况比过去更黑暗。因此,我们如何能够做到这一点?

Answer 1

在您的Xml档案中,添加了像这样的东西,有血缘和高等同。

<RelativeLayout
        android:id="@+id/bac_dim_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#C0000000"
        android:visibility="gone" >
</RelativeLayout>

您的活动

//setting background dim when showing popup
back_dim_layout = (RelativeLayout) findViewById(R.id.bac_dim_layout);

最后,当你向你们展示流行之窗时,当你离开流行之窗时,就会发现。

back_dim_layout.setVisibility(View.Visible);
back_dim_layout.setVisibility(View.GONE);

Answer 2

如果说不错......你可以创造一份附有清单的活动......,并将主题作为辩证列入其中。

 <activity android:theme="@android:style/Theme.Dialog" />

这将使背景更加暗淡。

Answer 3

try this code if your popup is an activity then it will help definetly. make a mystyle.xml file in values folder of your project and make these changes.

<resources> 
   <style name="customStyle" parent="@android:style/Theme.Dialog">
     <item name="android:windowBackground">@android:color/transparent</item>
   </style>
</resources>

do this change in menifest.xml

<activity android:name="yourActivity" android:theme="@style/customStyle"></activity>

Answer 4

fun setBackgroundAlpha(activity: Activity, bgAlpha: Float) {
    val lp: WindowManager.LayoutParams = activity.getWindow().getAttributes()
    lp.alpha = bgAlpha
    activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND)
    activity.getWindow().setAttributes(lp)
}

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