DOUbaozhanshen-DLBBSAndroidAPK

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.google.android.material.appbar.MaterialToolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        android:elevation="4dp"
        app:layout_constraintTop_toTopOf="parent"
        app:title="@string/app_name"
        app:titleTextColor="?attr/colorOnPrimary" />

    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
        android:id="@+id/swipeRefresh"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintTop_toBottomOf="@id/toolbar"
        app:layout_constraintBottom_toBottomOf="parent">

        <WebView
            android:id="@+id/webView"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

    <ProgressBar
        android:id="@+id/progressBar"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="3dp"
        android:max="100"
        app:layout_constraintTop_toBottomOf="@id/toolbar" />

    <LinearLayout
        android:id="@+id/errorView"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:gravity="center"
        android:orientation="vertical"
        android:visibility="gone"
        app:layout_constraintTop_toBottomOf="@id/toolbar"
        app:layout_constraintBottom_toBottomOf="parent">

        <TextView
            android:id="@+id/errorText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/net_error"
            android:textSize="16sp" />

        <Button
            android:id="@+id/retryButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp"
            android:text="@string/retry" />
    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>