ActionBar 中的进度条 [英] Progressbar in ActionBar

问题描述

我正在使用一个应用程序，它将在应用程序内部加载一个网站.现在我想在操作栏中添加一个 ProgressBar，而无需向上滑动以抑制功能.

就像那样

我在我的应用中使用 Fragment.

WebviewFragment

public class WebviewFragment extends Fragment {WebView webView;字符串新闻链接；@覆盖公共视图 onCreateView(LayoutInflater inflater，ViewGroup 容器，Bundle savedInstanceState) {查看视图 = inflater.inflate(R.layout.fragment_webview, container, false);newslink = getArguments().getString("LINK");webView = (WebView) view.findViewById(R.id.webView);webView.getSettings().setJavaScriptEnabled(true);webView.loadUrl(新闻链接)；webView.setWebViewClient(new WebViewClient() {@覆盖public boolean shouldOverrideUrlLoading(WebView view, String url) {view.loadUrl(url);返回真；}});webView.setOnKeyListener(new View.OnKeyListener() {public boolean onKey(View v, int keyCode, KeyEvent 事件) {if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) {webView.goBack();返回真；}返回假；}});返回视图；}}

fragment_webview.XML

</LinearLayout>

对我有什么解决方案?

解决方案

如果你想给 actionbar 添加进度，在 setlayout 之前调用这个方法

requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);

UPDATE 应该在哪里请求窗口功能

@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);setContentView(R.layout.activity_main);....//其他代码放在这里}

当你想运行它时调用这个方法

在片段中编辑您可以在 requestWindowFeature 之前添加 getActivity() 为 getActivity().requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);

 setProgressBarIndeterminateVisibility(true);//开启进度setProgressBarIndeterminateVisibility(false);//关闭进度

希望这项工作，我建议使用工具栏

<进度条android:id="@+id/toolbar_progress_bar"android:layout_width="wrap_content"android:layout_height="wrap_content"android:indeterminateTint="#795548"android:indeterminateTintMode="src_in"机器人:layout_gravity =正确"/></android.support.v7.widget.Toolbar>

<块引用>

为什么我推荐带有 ProgressBar 的工具栏?

出于两个原因，第一 setSupportProgressBarIndeterminate 已弃用.

第二易于使用只需设置setVisibility方法使其可见调用setVisibility(View.VISIBLE);隐藏视图调用 setVisibility(View.GONE);

I am working with an app which will load a website Inside the app .Now i want to add a ProgressBar in action bar without swipe up to repress feature.

Like that

I am using Fragment in my app.

WebviewFragment

public class WebviewFragment extends Fragment {

    WebView webView;
    String newslink;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
           View view = inflater.inflate(R.layout.fragment_webview, container, false);

        newslink = getArguments().getString("LINK");


        webView = (WebView) view.findViewById(R.id.webView);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.loadUrl(newslink);
        webView.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                view.loadUrl(url);
                return true;
            }
        });
        webView.setOnKeyListener(new View.OnKeyListener() {
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) {
                    webView.goBack();
                    return true;
                }
                return false;
            }
        });


        return view;

    }


}

fragment_webview.XML

<?xml version="1.0" encoding ="utf-8"?
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/swipe_container"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >




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


</LinearLayout>

Any solution for me ?

解决方案

if you want add progress to actionbar call this method before setlayout

requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);

UPDATE where should request window feature

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
    setContentView(R.layout.activity_main);
     .... // other code goes here 
       }

and call this method when you want run it

EDIT in fragment you can add getActivity() before requestWindowFeature to be getActivity().requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);

 setProgressBarIndeterminateVisibility(true); // turn progress on

     setProgressBarIndeterminateVisibility(false); // turn progress off

hope this work , my recommendation to use toolbar

<android.support.v7.widget.Toolbar     
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/material_green_500"
android:minHeight="?attr/actionBarSize"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">


<ProgressBar
    android:id="@+id/toolbar_progress_bar"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:indeterminateTint="#795548"
    android:indeterminateTintMode="src_in"
    android:layout_gravity="right"
/>

</android.support.v7.widget.Toolbar>

Why I recommended toolbar with ProgressBar ?

for two reasons , First setSupportProgressBarIndeterminate deprecated.

Second easy to use just set setVisibility method to make it visible call setVisibility(View.VISIBLE); to hide view call setVisibility(View.GONE);

这篇关于ActionBar 中的进度条的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！