Glide加载需要权限验证的图片Url

Glide默认加载的图片Url是可以公开访问的图片Url，我们的场景里访问图片Url需要带上Cookie信息，否则无法获取图片。解决办法是为图片请求加上头信息

方法一是利用GlideModule

package com.mypackage;

public class MyGlideModule implements GlideModule { @Override public void applyOptions(Context context, GlideBuilder builder) { // Apply options to the builder here. }

@Override public void registerComponents(Context context, Glide glide) {
    // register ModelLoaders here.
}

} 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11 // register ModelLoaders here. ModelLoader就是图片的加载器 参考sample 我们可以继承BaseGlideUrlLoader写一个自己Loader，重载里面的getHeaders

public class TbxImageLoader extends BaseGlideUrlLoader<MyUrlWrapperEntity> {

public static class Factory implements ModelLoaderFactory<MyUrlWrapperEntity, InputStream> {
    private final ModelCache<MyUrlWrapperEntity, GlideUrl> modelCache = new ModelCache<MyUrlWrapperEntity, GlideUrl>(500);

    @Override
    public ModelLoader<MyUrlWrapperEntity, InputStream> build(Context context, GenericLoaderFactory factories) {
        return new TbxImageLoader(context, modelCache);
    }

    @Override
    public void teardown() {
    }
}

public TbxImageLoader(Context context, ModelCache<MyUrlWrapperEntity, GlideUrl> modelCache) {
    super(context, modelCache);
}

@Override
protected String getUrl(MyUrlWrapperEntitymodel, int width, int height) {
    return model.getUrl();// Api.getPhotoURL(model, width, height);
}

@Override
protected Headers getHeaders(MyUrlWrapperEntitymodel, int width, int height) {

// return super.getHeaders(model, width, height); List<HttpCookie> list = RequestManager.getValidCookie(URI.create(model.getUrl())); LazyHeaders.Builder builder = new LazyHeaders.Builder(); for (HttpCookie hc: list) { builder.addHeader("Cookie",hc.toString()); } return builder.build(); } }

具体配置方法参考

这种方法是全局配置，还有一种方法是

GlideUrl glideUrl = new GlideUrl("url", new LazyHeaders.Builder() .addHeader("key1", "value") .addHeader("key2", new LazyHeaderFactory() { @Override public String buildHeader() { String expensiveAuthHeader = computeExpensiveAuthHeader(); return expensiveAuthHeader; } }) .build());

Glide....load(glideUrl)....;