Glide加载https图片

因为在WWDC 2016开发者大会上，苹果宣布了一个最后期限：到2017年1月1日 App Store中的所有应用都必须启用App Transport Security安全功能，所以受之牵连，因此图片加载框架也要兼容https接口。 1、在build.gradle中添加依赖：

 compile 'com.github.bumptech.glide:glide:3.6.1' compile 'com.squareup.okhttp:okhttp:2.7.2' compile 'com.github.bumptech.glide:okhttp-integration:1.4.0@aar'

2.拷贝'com.github.bumptech.glide:okhttp-integration:1.4.0@aar'里面3个类OkHttpGlideModule ，OkHttpUrlLoader，OkHttpStreamFetcher的源码；OkHttpGlideModule类：改写成如下忽略证书，支持https

public class OkHttpGlideModule implements GlideModule {    @Override    public void applyOptions(Context context, GlideBuilder builder) {        // Do nothing.    }    @Override    public void registerComponents(Context context, Glide glide) {        OkHttpClient okHttpClient=new OkHttpClient();        X509TrustManager xtm = new X509TrustManager() {            @Override            public void checkClientTrusted(X509Certificate[] chain, String authType) {            }            @Override            public void checkServerTrusted(X509Certificate[] chain, String authType) {            }            @Override            public X509Certificate[] getAcceptedIssuers() {                X509Certificate[] x509Certificates = new X509Certificate[0];                return x509Certificates;            }        };        SSLContext sslContext = null;        try {            sslContext = SSLContext.getInstance("SSL");            sslContext.init(null, new TrustManager[]{xtm}, new SecureRandom());        } catch (NoSuchAlgorithmException e) {            e.printStackTrace();        } catch (KeyManagementException e) {            e.printStackTrace();        }        HostnameVerifier DO_NOT_VERIFY = new HostnameVerifier() {            @Override            public boolean verify(String hostname, SSLSession session) {                return true;            }        };        okHttpClient.setSslSocketFactory(sslContext.getSocketFactory());        okHttpClient.setHostnameVerifier(DO_NOT_VERIFY);        glide.register(GlideUrl.class, InputStream.class, new OkHttpUrlLoader.Factory(okHttpClient));    }}

OkHttpStreamFetcher类

public class OkHttpStreamFetcher implements DataFetcher<InputStream> {    private final OkHttpClient client;    private final GlideUrl url;    private InputStream stream;    private ResponseBody responseBody;    public OkHttpStreamFetcher(OkHttpClient client, GlideUrl url) {        this.client = client;        this.url = url;    }    @Override    public InputStream loadData(Priority priority) throws Exception {        Request.Builder requestBuilder = new Request.Builder()                .url(url.toStringUrl());        for (Map.Entry<String, String> headerEntry : url.getHeaders().entrySet()) {            String key = headerEntry.getKey();            requestBuilder.addHeader(key, headerEntry.getValue());        }        Request request = requestBuilder.build();        Response response = client.newCall(request).execute();        responseBody = response.body();        if (!response.isSuccessful()) {            throw new IOException("Request failed with code: " + response.code());        }        long contentLength = responseBody.contentLength();        stream = ContentLengthInputStream.obtain(responseBody.byteStream(), contentLength);        return stream;    }    @Override    public void cleanup() {        if (stream != null) {            try {                stream.close();            } catch (IOException e) {                // Ignored            }        }        if (responseBody != null) {            try {                responseBody.close();            } catch (IOException e) {                // Ignored.            }        }    }    @Override    public String getId() {        return url.getCacheKey();    }    @Override    public void cancel() {        // TODO: call cancel on the client when this method is called on a background thread. See #257    }}

OkHttpUrlLoader 类

public class OkHttpUrlLoader implements ModelLoader<GlideUrl, InputStream> {    /**     * The default factory for {@link OkHttpUrlLoader}s.     */    public static class Factory implements ModelLoaderFactory<GlideUrl, InputStream> {        private static volatile OkHttpClient internalClient;        private OkHttpClient client;        private static OkHttpClient getInternalClient() {            if (internalClient == null) {                synchronized (Factory.class) {                    if (internalClient == null) {                        internalClient = new OkHttpClient();                    }                }            }            return internalClient;        }        /**         * Constructor for a new Factory that runs requests using a static singleton client.         */        public Factory() {            this(getInternalClient());        }        /**         * Constructor for a new Factory that runs requests using given client.         */        public Factory(OkHttpClient client) {            this.client = client;        }        @Override        public ModelLoader<GlideUrl, InputStream> build(Context context, GenericLoaderFactory factories) {            return new OkHttpUrlLoader(client);        }        @Override        public void teardown() {            // Do nothing, this instance doesn't own the client.        }    }    private final OkHttpClient client;    public OkHttpUrlLoader(OkHttpClient client) {        this.client = client;    }    @Override    public DataFetcher<InputStream> getResourceFetcher(GlideUrl model, int width, int height) {        return new OkHttpStreamFetcher(client, model);    }}

3、删除在build.gradle中依赖：

compile 'com.github.bumptech.glide:okhttp-integration:1.4.0@aar'；  

4、在Android.Manifest中配置：

<meta-data            android:name="***.OkHttpGlideModule"               android:value="GlideModule" />

此时，重新运行后发现可以加载https啦。
但是，在发布后会出现找不到OkHttpGlideModule类。是因为被混淆了，因此发布时还得注意下

5、发布时避免混淆
在混淆文件proguard-rules.pro中添加混淆规则

-keep class cn.manmanda.util.https_glide.OkHttpGlideModule