android 加载显示富文本——TextView显示富文本和WebView显示富文本，WebView显示图片适配屏幕宽度

 TextView加载显示

添加依赖

implementation 'com.zzhoujay.richtext:richtext:3.0.8'
implementation 'com.zzhoujay:html:1.0.2'

调用

/**
 * 加载Html
 *
 * @param html
 */
protected void loadHtml(String html, TextView textContent) {
    try {
        RichText.fromHtml(html).into(textContent);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

 

 WebView加载显示

 1、封装webview

public class LollipopFixedWebView extends WebView {

    public LollipopFixedWebView(Context context) {
        super(getFixedContext(context));
    }

    public LollipopFixedWebView(Context context, AttributeSet attrs) {
        super(getFixedContext(context), attrs);
    }

    public LollipopFixedWebView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(getFixedContext(context), attrs, defStyleAttr);
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    public LollipopFixedWebView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(getFixedContext(context), attrs, defStyleAttr, defStyleRes);
    }

    public LollipopFixedWebView(Context context, AttributeSet attrs, int defStyleAttr, boolean privateBrowsing) {
        super(getFixedContext(context), attrs, defStyleAttr, privateBrowsing);
    }

    public static Context getFixedContext(Context context) {
        if (Build.VERSION.SDK_INT >= 21 && Build.VERSION.SDK_INT < 23) // Android Lollipop 5.0 & 5.1
            return context.createConfigurationContext(new Configuration());
        return context;
    }
}

2、引用

3、java代码实现

方法一

String topss="";
LgqLogutil.e("lll000ll===  "+content);
String endss="";

方法二 

 

String js = "";

 
 webView.loadData((data.getProjectDescription()+js).replace("&zoom=640w",""), "text/html;charset=utf-8", null);

webView.loadData((ss+js).replace("&zoom=640w",""), "text/html;charset=utf-8", null);

  public void initfte(String ss){
        WebSettings settings = webView.getSettings();
        // 设置WebView支持JavaScript
        settings.setJavaScriptEnabled(true);
        //支持自动适配
        settings.setUseWideViewPort(true);
        settings.setLoadWithOverviewMode(true);
        settings.setSupportZoom(false);  //支持放大缩小
        settings.setBuiltInZoomControls(false); //显示缩放按钮
        settings.setBlockNetworkImage(true);// 把图片加载放在最后来加载渲染
        settings.setAllowFileAccess(true); // 允许访问文件
        settings.setSaveFormData(true);
        settings.setGeolocationEnabled(true);
        settings.setDomStorageEnabled(true);
        settings.setJavaScriptCanOpenWindowsAutomatically(true);/// 支持通过JS打开新窗口
        settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NARROW_COLUMNS);
        settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);
        //设置不让其跳转浏览器
        webView.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                return false;
            }
        });

        // 添加客户端支持
        webView.setWebChromeClient(new WebChromeClient());
        // mWebView.loadUrl(TEXTURL);

        //不加这个图片显示不出来
        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP) {
            webView.getSettings().setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
        }
        webView.getSettings().setBlockNetworkImage(false);

        //允许cookie 不然有的网站无法登陆
        CookieManager mCookieManager = CookieManager.getInstance();
        mCookieManager.setAcceptCookie(true);
        mCookieManager.setAcceptThirdPartyCookies(webView, true);
        webView.loadDataWithBaseURL(null,ss, "text/html" , "utf-8", null);//加载html数据
//        webView.loadUrl(URL);
    }

 

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