ImageLoader加载https图片

最新推荐文章于 2021-05-03 21:05:37 发布

原创最新推荐文章于 2021-05-03 21:05:37 发布 · 518 阅读

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CC 4.0 BY-SA版权

文章标签：

#https #imagerLoad

本文介绍了一个自定义的图片下载器类AuthImageDownloader，该类继承自BaseImageDownloader，并覆盖了getStreamFromNetwork方法来处理HTTPS连接。此外，还展示了如何使用ImageLoaderConfiguration.Builder进行ImageLoader的初始化配置。

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public class AuthImageDownloader extends BaseImageDownloader {
    public static final String TAG = AuthImageDownloader.class.getName();


    public AuthImageDownloader(Context context, int connectTimeout, int readTimeout) {
        super(context, connectTimeout, readTimeout);
    }

    @Override
    protected InputStream getStreamFromNetwork(String imageUri, Object extra) throws IOException {

        URL url = null;
        try {
            url = new URL(imageUri);
        } catch (MalformedURLException e) {
            Log.e(TAG, e.getMessage(), e);
        }
        HttpURLConnection http = null;

        if (Scheme.ofUri(imageUri) == Scheme.HTTPS) {
            trustAllHosts();
            HttpsURLConnection https = (HttpsURLConnection) url
                    .openConnection();
            https.setHostnameVerifier(DO_NOT_VERIFY);
            http = https;
            http.connect();
        } else {
            http = (HttpURLConnection) url.openConnection();
        }

        http.setConnectTimeout(connectTimeout);
        http.setReadTimeout(readTimeout);
        return new FlushedInputStream(new BufferedInputStream(
                http.getInputStream()));
    }

    // always verify the host - dont check for certificate
    final static HostnameVerifier DO_NOT_VERIFY = new HostnameVerifier() {
        @Override
        public boolean verify(String hostname, SSLSession session) {
            return true;
        }
    };

    /**
     * Trust every server - dont check for any certificate
     */
    private static void trustAllHosts() {
        // Create a trust manager that does not validate certificate chains
        TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
            @Override
            public void checkClientTrusted(
                    java.security.cert.X509Certificate[] x509Certificates,
                    String s) throws java.security.cert.CertificateException {
            }

            @Override
            public void checkServerTrusted(
                    java.security.cert.X509Certificate[] x509Certificates,
                    String s) throws java.security.cert.CertificateException {
            }

            @Override
            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                return new java.security.cert.X509Certificate[] {};
            }
        } };

        // Install the all-trusting trust manager
        try {
            SSLContext sc = SSLContext.getInstance("TLS");
            sc.init(null, trustAllCerts, new java.security.SecureRandom());
            HttpsURLConnection
                    .setDefaultSSLSocketFactory(sc.getSocketFactory());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

     ImageLoaderConfiguration.Builder config = new ImageLoaderConfiguration.Builder(context);
        config.threadPriority(Thread.NORM_PRIORITY - 2);
        config.denyCacheImageMultipleSizesInMemory();
        config.diskCacheFileNameGenerator(new Md5FileNameGenerator());
        config.diskCacheSize(50 * 1024 * 1024); // 50 MiB
        config.tasksProcessingOrder(QueueProcessingType.LIFO);
        config.writeDebugLogs(); // Remove for release app
        config.imageDownloader(new AuthImageDownloader(context,5000,5000));
        // Initialize ImageLoader with configuration.
        ImageLoader.getInstance().init(config.build());

        options = new DisplayImageOptions.Builder()
                .showImageOnLoading(R.mipmap.ic_stub)
                .showImageForEmptyUri(R.mipmap.ic_empty)
                .showImageOnFail(R.mipmap.ic_error)
                .cacheInMemory(true)
                .cacheOnDisk(true)
                .considerExifParams(true)
                .displayer(new RoundedBitmapDisplayer(20))
                .build();