Question

我正在尝试在Android WebView上加载由Wordpress提供支持的博客。而内容和标题＆＃39;图像正在显示，帖子内的图像（我的意思是从显示的网页打开帖子）不会显示（所有文本甚至广告都会显示）。仅在网络浏览器上查看网站并不会显示此类问题。我尝试过在这个社区就类似问题提出的各种其他问题中建议的方法，但未能解决我的问题。

这是代码

public class MainActivity extends AppCompatActivity {

    private WebView webView;
    private ProgressDialog mProgress;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        webView = (WebView) findViewById(R.id.cuous_web_view);

        WebSettings webSettings = webView.getSettings();
        webSettings.setJavaScriptEnabled(true);
        webSettings.setAllowContentAccess(true);
        webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
        webSettings.setDomStorageEnabled(true);
        webSettings.setLoadWithOverviewMode(true);
        webSettings.setAppCacheEnabled(true);
        webSettings.setAppCachePath(this.getApplicationContext().
                       getCacheDir().getAbsolutePath());
        webSettings.setLoadsImagesAutomatically(true);
        webSettings.setCacheMode(WebSettings.LOAD_DEFAULT);
        webSettings.setSupportZoom(true);
        webSettings.setUserAgentString("Android WebView");
        mixedContentIfRequired(webSettings);
        webSettings.setBuiltInZoomControls(true);

        webView.setWebViewClient(new CuousViewClient());
        webView.setWebChromeClient(new CuousChromeClient());
        webView.loadUrl("http://cuous.com/");
    }

    private void mixedContentIfRequired(WebSettings webSettings) {
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
             webSettings.setMixedContentMode(WebSettings.
                        MIXED_CONTENT_COMPATIBILITY_MODE);
        }
    }
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if(keyCode == KeyEvent.KEYCODE_BACK && webView.canGoBack()) {
            webView.goBack();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }

    @Override
    protected void onDestroy() {
        if(mProgress != null && mProgress.isShowing())
            mProgress.dismiss();
        super.onDestroy();
    }

    private class CuousChromeClient extends WebChromeClient  {

        @Override
        public void onProgressChanged(WebView view, int progress) {
            if (mProgress == null) {
                mProgress = new ProgressDialog(MainActivity.this);
                mProgress.show();
                mProgress.setCanceledOnTouchOutside(false);
            }
            mProgress.setMessage("Loading " + String.valueOf(progress) + "%");
            if (progress == 100) {
                mProgress.dismiss();
                mProgress = null;
            }
        }
    }

    private class CuousViewClient extends WebViewClient {

        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            ActionBar actionBar = getSupportActionBar();
            if(actionBar.isShowing()) {
                actionBar.hide();
            }
            super.onPageStarted(view, url, favicon);
        }

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
            return true;
        }


        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
            view.loadUrl("javascript:var footer = document.getElementById(\"footer\"); footer.parentNode.removeChild(footer);");
        }

        @Override
        public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
            if(handler != null) {
                handler.proceed();
            }
            else super.onReceivedSslError(view, null, error);
        }
    }
}

Answer 1

您好我尝试了与我的代码链接。我可以看到图片：see the photo。这是你想要的吗？

那是我的主要活动：

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;


public class MainActivity extends Activity {

    private WebView view;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        view = (WebView) this.findViewById(R.id.webView);
        view.getSettings().setJavaScriptEnabled(true);
        view.getSettings().setDomStorageEnabled(true);
        view.setWebViewClient(new MyBrowser());
        view.loadUrl("file:///android_asset/www/index.html"); //try js alert
        view.setWebChromeClient(new WebChromeClient()); // adding js alert support

    }
    private class MyBrowser extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if (url.startsWith("tel:") || url.startsWith("sms:") || url.startsWith("smsto:") || url.startsWith("mailto:") || url.startsWith("mms:") || url.startsWith("mmsto:") || url.startsWith("market:")) {
                Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
                startActivity(intent);
                return true;
            }
            else {
                view.loadUrl(url);
                return true;
            }
        }
    }

    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if ((keyCode == KeyEvent.KEYCODE_BACK) && view.canGoBack()) {
            view.goBack(); //method goback()
            return true;
        }

        return super.onKeyDown(keyCode, event);
    }
}

还可以问一下最低SDK版本是什么？

修改

This is what you want?

This is what also get

<强> UPDATE_SHOULDURLOVERRIDING

这是一段代码，它将执行其他操作然后只需打开webview中的url它控制它就像mailto .... 我对mailto的意思是：在HTML中你可以这样做：myname@gmail.com并在你的电脑上它将打开你的前景。如果你有android并且那段代码不存在则会出错。如果你有这段代码，它会在mailserivce中询问我是否需要打开它。

修改所以，如果你通过这种方法加载它可以吗？

@Override public boolean shouldOverrideUrlLoading(WebView view, String url) { view.loadUrl(url); return true; }

而不是：

view.loadUrl("file:///android_asset/www/index.html"); //try js alert

无法在Android webview中查看帖子内的图片

1 个答案: