服务器端要做图片防盗链,app端请求图片时需要带上特定的referer,通过以下代码,时不时可以成功,但是服务器端回复说有时候收不到referer。
Interceptor代码:
public class PicassoHeaderInterceptor implements Interceptor {
@Override
public Response intercept(Chain chain) throws IOException {
Request.Builder request = chain.request().newBuilder();
request.addHeader("referer", ConstantsValues.IMAGE_REFER);
return chain.proceed(request.build());
}
}
getPicasso方法:
public static Picasso getPicasso(){
if(mPicasso==null){
synchronized (UI.class){
if(mPicasso==null){
OkHttpClient okHttpClient = new OkHttpClient();
okHttpClient.interceptors().add(new PicassoHeaderInterceptor());
OkHttpDownloader okHttpDownloader = new OkHttpDownloader(okHttpClient);
mPicasso = new Picasso.Builder(getContext()).downloader(okHttpDownloader).build();
}
}
}
return mPicasso;
}
加载图片的方法:
public static void displayCircleImage(ImageView iv,String url){
getPicasso().with(getContext()).load(url)
.placeholder(R.drawable.ic_image_loading)
.error(R.drawable.ic_launcher)
.transform(new CircleTransform())
.into(iv);
}
public static void displayImage(ImageView iv,String url){
getPicasso().with( iv.getContext() )
.load(url)
.placeholder(R.drawable.ic_image_loading)
.error(R.drawable.ic_launcher)
.config(Bitmap.Config.RGB_565)
.transform(new ZoomTransformation(UI.dip2px(200)))
.into(iv);
}
本来前段时间刚完成referer的时候是都可以的,但是这2天只有偶尔几张图片能够获取到,百思不得其解,希望各位能够帮帮忙