android 加载网络图片的时候log打印 SkImageDecoder::Factory returned null,图片出不来。
查了一下,有人说是javanet 不如apache做得好,但是换成apache的httpclient 也会有这个问题。后来发现是http返回的状态码是错的,也就是用根本就访问不到。做http请求时候一般都会对返回结果进行判断,查看状态码是否正确,这次偏偏为了省事儿给忘了。
apache 代码如下:
写道
HttpGet httpRequest = new HttpGet(url);
HttpClient httpclient = new DefaultHttpClient();
httpclient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 30000);
httpclient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 30000);
HttpResponse response = (HttpResponse) httpclient.execute(httpRequest);
if (response.getStatusLine().getStatusCode() == 200) {
//返回结果正确
decodesteam(XXX);
}else{
//返回结果错误
}
HttpClient httpclient = new DefaultHttpClient();
httpclient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 30000);
httpclient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 30000);
HttpResponse response = (HttpResponse) httpclient.execute(httpRequest);
if (response.getStatusLine().getStatusCode() == 200) {
//返回结果正确
decodesteam(XXX);
}else{
//返回结果错误
}
java net 的HttpURLConnection 的用法是
写道
conn.getResponseCode()
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