我有一个webview里面NestedScrollView 。CoordinatorLayout问题是在 android 5 中没有显示全部内容。我使用这个解决方案和这个解决方案，但它不起作用。我的代码有什么问题？
XML:
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="match_parent">
<com.android.volley.toolbox.NetworkImageView
android:id="@+id/img_circleThumbnail1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:scaleType="fitCenter"
android:visibility="invisible"
app:layout_collapseMode="parallax">
</com.android.volley.toolbox.NetworkImageView>
<ir.whc.news.views.CustomFontTextView
android:id="@+id/tv_title_news"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:gravity="center"
android:shadowColor="#000"
android:shadowDx="1"
android:shadowDy="3"
android:shadowRadius="5"
android:text="title"
android:textSize="20sp"
android:textStyle="bold"
app:fontName="@string/byaken" />
</FrameLayout>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="@dimen/abc_action_bar_default_height_material"
app:layout_collapseMode="pin"
app:popupTheme="@style/AppTheme.PopupOverlay"></android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<android.support.v4.widget.NestedScrollView
android:layout_gravity="fill_vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="ir.whc.news.views.FixedScrollingViewBehavior">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/content_layput"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:visibility="invisible">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<include layout="@layout/custom_txt_date"></include>
<View
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="1" />
<ir.whc.news.views.CustomFontTextView
android:id="@+id/tv_cnt_eye"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="6dp"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@color/textColorPrimary2"
android:textSize="11sp"
app:fontName="@string/byaken" />
<com.beardedhen.androidbootstrap.AwesomeTextView
android:id="@+id/fontAwesomeText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:textColor="#FFF"
app:fontAwesomeIcon="fa_eye" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@android:color/darker_gray" />
<ir.whc.news.views.CustomFontTextView
android:id="@+id/tv_sum_news"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:lineSpacingExtra="15dp"
android:paddingBottom="20dp"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:textAppearance="?android:attr/textAppearanceSmall"
app:fontName="@string/byaken" />
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:minHeight="500dp">
<WebView
android:id="@+id/webView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent"
android:clickable="true"
android:scrollbars="vertical"
android:textAlignment="center"
android:textDirection="rtl" />
</FrameLayout>
</LinearLayout>
<LinearLayout
android:id="@+id/content_problem_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="invisible">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_margin="20dp"
android:gravity="center"
android:text="@string/connection_problem"
android:textColor="@color/blue_1" />
</LinearLayout>
</FrameLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_marginBottom="20dp"
android:layout_marginRight="20dp"
android:src="@drawable/ic_bookmark_white_normal"
app:fabSize="normal" />
这是我里面的不完整文字webview：
