【发布时间】：2016-07-11 06:25:17
【问题描述】：
我目前的布局是
Toolbar
Tablayout
Webview
我试图在用户向上滚动时隐藏工具栏，并在用户向下滚动时再次显示它，而 webview 位于 tablayout 下方。我正在关注教程，但在我的情况下，虽然我得到了影响，但工具栏没有完全滚动（即 1/3 仍在视图中），但我无法查看我认为与布局实现有关的 webview .请更正以下布局
Appbarmain.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".Activity.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay"
app:layout_scrollFlags="scroll|enterAlways"/>
<android.support.design.widget.TabLayout
android:id="@+id/tab_layout"
android:layout_marginLeft="5dp"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:tabGravity="fill"
app:tabMode="scrollable">
</android.support.design.widget.TabLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
</android.support.design.widget.CoordinatorLayout>
这里的 relativelayout 太小，因此我无法查看 webview。这是 fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ProgressBar
android:id="@+id/progressBar1"
style="?android:attr/progressBarStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<android.support.v4.widget.SwipeRefreshLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/swipe1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFF">
<WebView
android:id="@+id/website_detail_1"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:numColumns="1"
android:focusableInTouchMode="false"
android:focusable="false"
android:background="#FFFFFF" />
</android.support.v4.widget.SwipeRefreshLayout>
</RelativeLayout>
</android.support.v4.widget.NestedScrollView>
这是包含从 Activity 调用的 webview 的 Fragment
public class NewsFragment extends Fragment {
// private String url;
private WebView webView;
private ProgressBar progressBar1;
private SwipeRefreshLayout mSwipeRefreshLayout1;
public NewsFragment() {
// Required empty public constructor
}
public static NewsFragment newInstance(String webUrl) {
//set arguments
Bundle args = new Bundle();
args.putString("website", webUrl);
NewsFragment newsFragment = new NewsFragment();
newsFragment.setArguments(args);
return newsFragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment, container, false);
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
//get back arguments
final String url = this.getArguments().getString("website");
progressBar1 = (ProgressBar) view.findViewById(R.id.progressBar1);
webView = (WebView) view.findViewById(R.id.website_detail_1);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
progressBar1.setProgress(progress);
if (progress == 100) {
progressBar1.setVisibility(View.GONE);
if (mSwipeRefreshLayout1.isRefreshing()) {
mSwipeRefreshLayout1.setRefreshing(false);
}
} else {
progressBar1.setVisibility(View.VISIBLE);
}
}
});
webView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
webView.getSettings().setCacheMode(WebSettings.LOAD_DEFAULT);
WebSettings webSettings = webView.getSettings();
// webView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
webView.getSettings().setAppCacheEnabled(true);
webSettings.setDomStorageEnabled(true);
if (!isNetworkAvailable()) { // loading offline
webView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
}
webView.loadUrl(url);
mSwipeRefreshLayout1 = (SwipeRefreshLayout) view.findViewById(R.id.swipe1);
mSwipeRefreshLayout1.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
webView.loadUrl(url);
}
});
webView.setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) {
webView.goBack();
return true;
}
return false;
}
});
}
}
【问题讨论】：
-
尽可能显示您的活动代码。你正试图在 viewpager 中加载 webview 对吗？
-
是的，我正在尝试在视图寻呼机中加载 web 视图。活动有必要吗？ Activity 只是调用加载 fragment.xml（更新）
-
好吧，我试试。等几分钟。
-
在您的 AppBarLayout 中添加
android:fitsSystemWindows="true"！ -
@UttamPanchasara 没有帮助。
标签： android android-layout webview