java如何在创建对话框时设置模糊背景

Question

创建对话框时如何设置模糊背景

我只找到了DialogFragment和AlertDialog，但我想在活动中设置Dialog

如何创建它或图书馆推荐什么

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

Answer 1

试试这个

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

或者尝试一下，您可以像这样对对话框应用自定义主题

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);

现在创建如下主题

<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>

并检查这个AlertDialog with Blur background in possition center