Android 下拉刷新控件SwipeRefreshLayout结合WebView使用

转自：http://blog.csdn.net/h7870181/article/details/38682295

SwipeRefreshLayout 是谷歌官方下拉刷新控件，4.0以下的版本需要用到 android-support-v4.jar包才能用到

android-support-v4.jar 包下载地址：http://download.csdn.net/detail/h7870181/7784247

官网API地址：https://developer.android.com/reference/android/support/v4/widget/SwipeRefreshLayout.html

GitHub Demo下载地址： https://github.com/stormzhang/SwipeRefreshLayoutDemo


SwipeRefreshLayout 使用起来是非常简单的，只需要在可以滑动的控件外层添加即可，如：WebView、ListView和ScroolView.

[html] view
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<?xml version="1.0" encoding="utf-8"?>

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent" >

<android.support.v4.widget.SwipeRefreshLayout

android:id="@+id/swipe_container"

android:layout_width="match_parent"

android:layout_height="match_parent" >

<WebView

android:id="@+id/webview"

android:layout_width="match_parent"

android:layout_height="match_parent"/>

</android.support.v4.widget.SwipeRefreshLayout>

</FrameLayout>

常用方法：

void setOnRefreshListener(SwipeRefreshLayout.OnRefreshListener listener) 设置刷新监听器

void setColorSchemeColors(int color1, int color2, int color3, int color4) 设置四种颜色进度条样式

void setRefreshing(boolean refreshing) 隐藏或显示进度条

boolean isRefreshing() 判断进度条是否显示

结合WebView使用也挺简单的，可以实现一些功能，下拉刷新当前网页、点击网页在当前页面中浏览并显示SwipeRefreshLayout进度条，整体来说还是不错的

[java] view
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public class Fragment5 extends Fragment {

private View view;

public WebView webview;

private SwipeRefreshLayout swipeLayout;

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

view = inflater.inflate(R.layout.activity_fragment5, null);

swipeLayout = (SwipeRefreshLayout) view.findViewById(R.id.swipe_container);

swipeLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {

@Override

public void onRefresh() {

//重新刷新页面

webview.loadUrl(webview.getUrl());

}

});

swipeLayout.setColorScheme(R.color.holo_blue_bright,

R.color.holo_green_light, R.color.holo_orange_light,

R.color.holo_red_light);

webview = (WebView)view.findViewById(R.id.webview);

webview.loadUrl("http://blog.csdn.net/h7870181");

//添加javaScript支持

webview.getSettings().setJavaScriptEnabled(true);

//取消滚动条

webview.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);

//触摸焦点起作用

webview.requestFocus();

//点击链接继续在当前browser中响应

webview.setWebViewClient(new WebViewClient(){

@Override

public boolean shouldOverrideUrlLoading(WebView view, String url) {

view.loadUrl(url);

return true;

}

});

//设置进度条

webview.setWebChromeClient(new WebChromeClient(){

@Override

public void onProgressChanged(WebView view, int newProgress) {

if (newProgress == 100) {

//隐藏进度条

swipeLayout.setRefreshing(false);

} else {

if (!swipeLayout.isRefreshing())

swipeLayout.setRefreshing(true);

}

super.onProgressChanged(view, newProgress);

}

});

return view;

}

}

差点忘了贴出color.xml资源文件了，我呵了个呵！

[html] view
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<?xml version="1.0" encoding="utf-8"?>

<resources>

<!-- A light Holo shade of blue -->

<color name="holo_blue_light">#ff33b5e5</color>

<!-- A light Holo shade of green -->

<color name="holo_green_light">#ff99cc00</color>

<!-- A light Holo shade of red -->

<color name="holo_red_light">#ffff4444</color>

<!-- A dark Holo shade of blue -->

<color name="holo_blue_dark">#ff0099cc</color>

<!-- A dark Holo shade of green -->

<color name="holo_green_dark">#ff669900</color>

<!-- A dark Holo shade of red -->

<color name="holo_red_dark">#ffcc0000</color>

<!-- A Holo shade of purple -->

<color name="holo_purple">#ffaa66cc</color>

<!-- A light Holo shade of orange -->

<color name="holo_orange_light">#ffffbb33</color>

<!-- A dark Holo shade of orange -->

<color name="holo_orange_dark">#ffff8800</color>

<!-- A really bright Holo shade of blue -->

<color name="holo_blue_bright">#ff00ddff</color>

</resources>

没多大技术含量，纯属积累学习，还望大家见谅！