如何在对话框创建时设置模糊背景 [英] How to set Blur background when dialog create

问题描述

如何在对话框创建时设置模糊背景？

How to set Blur background when dialog create?

我发现只有 DialogFragment 和 AlertDialog 但我想在活动中设置 Dialog

I found DialogFragment only and AlertDialog but I want to set in Dialogin activity

如何创建它或者图书馆推荐什么？

How to create it or What's library recommend?

final Dialog dialog = new Dialog(this);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        Window window = dialog.getWindow();
        window.setBackgroundDrawableResource(android.R.color.transparent);
        window.setLayout(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
        dialog.setContentView(R.layout.register_policy_dialog);

推荐答案

试试这个

dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND); 

或尝试此操作您可以将自定义主题应用于对话框

Dialog customDialog= new Dialog(MainActivity.this,R.style.mytheme); 
Window window = customDialog.getWindow();
window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.WRAP_CONTENT);
window.setGravity(Gravity.CENTER);

现在创建这样的主题

<style name="mytheme" parent="android:style/Theme.Translucent">
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:backgroundDimEnabled">true</item>
    <item name="android:background">@android:color/transparent</item>        
</style>

并检查此 AlertDialog，带有模糊背景的中心

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