Java WebView.setDownloadListener方法代码示例

import android.webkit.WebView; //导入方法依赖的package包/类
@Override
public WebListenerManager setDownLoader(WebView webView, DownloadListener downloadListener) {
    webView.setDownloadListener(downloadListener);
    return this;
}
 

import android.webkit.WebView; //导入方法依赖的package包/类
public LightningView(@NonNull Activity activity, @Nullable String url, boolean isIncognito) {
    BrowserApp.getAppComponent().inject(this);
    mActivity = activity;
    mUIController = (UIController) activity;
    mWebView = new WebView(activity);
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN) {
        mWebView.setId(View.generateViewId());
    }
    mIsIncognitoTab = isIncognito;
    mTitle = new LightningViewTitle(activity);

    sMaxFling = ViewConfiguration.get(activity).getScaledMaximumFlingVelocity();

    mWebView.setDrawingCacheBackgroundColor(Color.WHITE);
    mWebView.setFocusableInTouchMode(true);
    mWebView.setFocusable(true);
    mWebView.setDrawingCacheEnabled(false);
    mWebView.setWillNotCacheDrawing(true);
    if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP_MR1) {
        //noinspection deprecation
        mWebView.setAnimationCacheEnabled(false);
        //noinspection deprecation
        mWebView.setAlwaysDrawnWithCacheEnabled(false);
    }
    mWebView.setBackgroundColor(Color.WHITE);

    mWebView.setScrollbarFadingEnabled(true);
    mWebView.setSaveEnabled(true);
    mWebView.setNetworkAvailable(true);
    mWebView.setWebChromeClient(new LightningChromeClient(activity, this));
    mWebView.setWebViewClient(new LightningWebClient(activity, this));
    mWebView.setDownloadListener(new LightningDownloadListener(activity));
    mGestureDetector = new GestureDetector(activity, new CustomGestureListener());
    mWebView.setOnTouchListener(new TouchListener());
    sDefaultUserAgent = mWebView.getSettings().getUserAgentString();
    initializeSettings();
    initializePreferences(activity);

    if (url != null) {
        if (!url.trim().isEmpty()) {
            mWebView.loadUrl(url, mRequestHeaders);
        } else {
            // don't load anything, the user is looking for a blank tab
        }
    } else {
        loadHomepage();
    }
}
 

import android.webkit.WebView; //导入方法依赖的package包/类
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_moodle);
    Toolbar toolbar = (Toolbar) findViewById(R.id.tool_bar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    webView = (WebView) findViewById(R.id.web_moodle);
    webSettings = webView.getSettings();
    webSettings.setAppCacheEnabled(true);
    //webSettings.setCacheMode(webSettings.LOAD_CACHE_ELSE_NETWORK);
    webSettings.setJavaScriptEnabled(true);
    webSettings.setLoadWithOverviewMode(true);
    webSettings.setAllowFileAccess(true);
    webView.setVerticalScrollBarEnabled(false);
    webView.getSettings().setDomStorageEnabled(true);
    webView.setHorizontalScrollBarEnabled(false);
    CookieManager.getInstance().setAcceptThirdPartyCookies(webView, true);
    CookieManager.getInstance().setAcceptCookie(true);
    //final SharedPreferences profile = getSharedPreferences("userdata", 0);
    webView.setWebViewClient(new PQClient());
    webView.setWebChromeClient(new PQChromeClient());
    //if SDK version is greater of 19 then activate hardware acceleration otherwise activate software acceleration
    if (Build.VERSION.SDK_INT >= 19) {
        webView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
    }
    else if(Build.VERSION.SDK_INT >=11 && Build.VERSION.SDK_INT < 19) {
        webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
    }

    webView.loadUrl("http://moodle.coep.org.in/moodle/login/index.php");
    webView.setDownloadListener(new DownloadListener() {

        @Override
        public void onDownloadStart(String url, String userAgent,
                                    String contentDisposition, String mimetype,
                                    long contentLength) {
            try {
                DownloadManager.Request request = new DownloadManager.Request(
                        Uri.parse(url));
            /* Let's have some Cookies !!!*/
                String cookies = CookieManager.getInstance().getCookie(url);
                request.addRequestHeader("cookie", cookies);
                //Yummy !!
                request.allowScanningByMediaScanner();
                request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); //Notify client once download is completed!
                final String filename = URLUtil.guessFileName(url, contentDisposition, mimetype);
                request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, filename);
                DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
                dm.enqueue(request);
                makeText(getApplicationContext(), "Downloading File", //To notify the Client that the file is being downloaded
                        Toast.LENGTH_LONG).show();
            }
            catch(SecurityException e)
            {
                Toast.makeText(getApplicationContext(),"Please grant the storage permission !",Toast.LENGTH_LONG).show();
            }

        }
    });
}