WebView自适应并嵌套在ScrollView里
大致思路：通过流的形式把网页抓取下来，然后对webView进行设置。
1.对webView进行设置
web.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
// Log.e("Test", "url....=" + url);
return true;
}
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
super.onReceivedSslError(view, handler, error);
handler.proceed();
}
});
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
web.getSettings().setLayoutAlgorithm(WebSettings.LayoutAlgorithm.TEXT_AUTOSIZING);
} else {
web.getSettings().setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NORMAL);
}
2.抓取网页数据：
private String getHtmlData(String bodyHTML) {
String head = "<head>" +
"<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, user-scalable=no\"> " +
"<style>img{max-width: 100%; width:auto; height:auto;}</style>" +
"</head>";
return "<html>" + head + "<body>" + bodyHTML + "</body></html>";
}
private String getHtmlString(String urlString) {
try {
URL url = new URL(urlString);
URLConnection ucon = url.openConnection();
InputStream instr = ucon.getInputStream();
BufferedInputStream bis = new BufferedInputStream(instr);
ByteArrayBuffer bau = new ByteArrayBuffer(500);
int current = 0;
while ((current = bis.read()) != -1) {
bau.append((byte) current);
}
return EncodingUtils.getString(bau.toByteArray(), "utf-8");
} catch (Exception e) {
return "";
}
}
用法：
html = getHtmlData(getHtmlString(url)); web.loadData(html, "text/html; charset=UTF-8", null);//这种写法可以正确解码
解决乱码问题：
web.getSettings().setDefaultTextEncodingName("UTF-8");
设置webView和scrollView一起滚动：
<ScrollView
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:descendantFocusability="blocksDescendants"
>
</ScrollView>
