Java 如何使ProgressDialog背景覆盖整个屏幕？

我正在使用以下代码添加进度对话框：

progress\u dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center"
    android:orientation="vertical"
    android:windowIsFloating="false"
    android:background="@android:color/white">

    <ProgressBar
        android:id="@+id/progressBar1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:layout_centerInParent="true" />
</RelativeLayout>

这将显示进度对话框，如下所示：

我希望进度对话框覆盖整个屏幕，如下所示：

---

如何使用

ProgressDialog

？

设置宽度和高度以匹配progressbar中的父项

<ProgressBar
    android:id="@+id/progressBar1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_centerHorizontal="true"
    android:layout_centerVertical="true"
    android:layout_centerInParent="true" />

试试这个：

首先，您必须在样式文件中创建主题，如下所示：

  <style name="CustomDialogTheme" parent="Theme.AppCompat.Light.DialogWhenLarge">
            <item name="android:windowIsFloating">false</item>
            <item name = "android:windowBackground" >@android:color/white</item >
        </style>

最后，这是自定义布局：

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <ProgressBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center" />
</FrameLayout>

---

这很好，但我建议您在将来需要时将其用于不同的类，只要调用类名并实现即可

public class ShowDialogClass {

    public static ProgressDialog showDialog(Context context) {
   
        final Dialog dialog = new Dialog(context, R.style.CustomDialogTheme);//apply style here
        View view = LayoutInflater.from(context).inflate(R.layout.progress, null);// inflate the custom view
        WindowManager.LayoutParams params = dialog.getWindow().getAttributes();
        params.width = WindowManager.LayoutParams.MATCH_PARENT; // set as full width
        params.height = WindowManager.LayoutParams.MATCH_PARENT;// set as full height
        dialog.setContentView(view); //add the custom view
        dialog.getWindow().setGravity(Gravity.CENTER); // set center gravity
        return dialog;
    }

}

您可以如何使用它，例如：

Dialog dialog= ShowDialogClass.showDialog(this)
dialog.show()
dialog.dismiss()

public class ShowDialogClass {

    public static ProgressDialog showDialog(Context context) {
   
        final Dialog dialog = new Dialog(context, R.style.CustomDialogTheme);//apply style here
        View view = LayoutInflater.from(context).inflate(R.layout.progress, null);// inflate the custom view
        WindowManager.LayoutParams params = dialog.getWindow().getAttributes();
        params.width = WindowManager.LayoutParams.MATCH_PARENT; // set as full width
        params.height = WindowManager.LayoutParams.MATCH_PARENT;// set as full height
        dialog.setContentView(view); //add the custom view
        dialog.getWindow().setGravity(Gravity.CENTER); // set center gravity
        return dialog;
    }

}

Dialog dialog= ShowDialogClass.showDialog(this)
dialog.show()
dialog.dismiss()