Appbar布局隐藏了ViewPager的背景

Question

我正在尝试制作collapsingtoolbar布局。除了viewpager为appbarlayout设置的背景被appbarlayout隐藏之外，一切正常。我将<RelativeLayout xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/relativeLayout"> <android.support.design.widget.CoordinatorLayout android:id="@+id/coordinate_layout" android:layout_width="match_parent" android:layout_height="match_parent" > <android.support.design.widget.AppBarLayout android:id="@+id/app_bar" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@android:color/transparent" > <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:paddingTop="30dp" android:minHeight="?attr/actionBarSize" app:layout_scrollFlags="scroll|enterAlways"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_gravity="center" android:gravity="center" android:text="AAAAAAAA" android:typeface="sans" android:textAllCaps="false" android:textColor="#ffffff" android:textSize="25sp" /> <ImageView android:id="@+id/imageView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_above="@+id/viewpagertab" android:clickable="true" app:srcCompat="@drawable/ic_action_keyboard_arrow_right" /> </android.support.v7.widget.Toolbar> <com.ogaclejapan.smarttablayout.SmartTabLayout android:id="@+id/viewpagertab" android:layout_width="match_parent" android:layout_height="48dp" android:layout_below="@+id/toolbar" android:layout_marginTop="35dp" app:stl_indicatorAlwaysInCenter="false" app:stl_indicatorWithoutPadding="false" app:stl_indicatorInFront="false" app:stl_indicatorInterpolation="smart" app:stl_indicatorGravity="center" app:stl_indicatorColor="#6a000000" app:stl_indicatorThickness="30dp" app:stl_indicatorWidth="110dp" app:stl_indicatorCornerRadius="10dp" app:stl_overlineColor="#4D000000" app:stl_overlineThickness="0dp" app:stl_underlineColor="#ffffff" app:stl_underlineThickness="0dp" app:stl_dividerColor="#ffffff" app:stl_dividerThickness="0dp" app:stl_defaultTabBackground="?attr/selectableItemBackground" app:stl_defaultTabTextAllCaps="false" app:stl_defaultTabTextColor="#ffffff" app:stl_defaultTabTextSize="16sp" app:stl_defaultTabTextHorizontalPadding="30dp" app:stl_defaultTabTextMinWidth="0dp" app:stl_distributeEvenly="false" app:stl_clickable="true" app:stl_titleOffset="24dp" app:stl_drawDecorationAfterTab="false" app:stl_customTabTextLayoutId="@layout/custom_tab_with_typeface" app:stl_customTabTextViewId="@+id/custom_text" /> </android.support.design.widget.AppBarLayout> <li.yohan.parallax.ParallaxViewPager android:id="@+id/viewpager" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/party" app:layout_behavior="@string/appbar_scrolling_view_behavior" /> </android.support.design.widget.CoordinatorLayout> </RelativeLayout> 的背景更改为透明，但它产生了半透明视图。我尝试改变各种布局的背景，但没有运气。请帮帮我。

下面是截图：

XML：

set_levels

Answer 1

删除它 app:stl_defaultTabBackground="?attr/selectableItemBackground"  来自 com.ogaclejapan.smarttablayout.SmartTabLayout这就是为什么它显示不太透明的原因..给主RelativeLayout一个background:@drawable\party 并从viewPager库中移除背景..或删除app:layout_behavior="@string/appbar_scrolling_view_behavior"