通话后activityForResult三星 Galaxy S3 丢失了 cookie 存储，该存储存储为 Application 类的静态字段。我想知道为什么会这样。
注意三星 Galaxy Tab 7.7 和 HTC Rhyme/Desire 从未出现此错误。
我调用 JSONParser.getJsonFromUrl，我想在其中执行网络操作。
getJsonFromUrl 向 httpClient 询问 UILapplication，它由 HttpClientFactory 提供。Meanwile UILApplications 将 cookie strore 恢复到客户端。我相信它应该减少互联网下降。
public class UILApplication extends Application {
private static CookieStore mCookie = null;
public static DefaultHttpClient client;
private static DefaultHttpClient httpClient;
public static HttpClient getHttpClient() {
httpClient = HttpClientFactory
.getThreadSafeClient();
synchronized (mLock) {
if (mCookie == null) {
mCookie = httpClient.getCookieStore();
} else {
httpClient.setCookieStore(mCookie);
}
}
List<Cookie> cookies = mCookie.getCookies();
if (cookies.isEmpty()) {
Log.d("COOK", "request - none");
} else {
for (int i = 0; i < cookies.size(); i++) {
Log.d("COOK", "request - " + cookies.get(i).toString());
}
}
return httpClient;
}
}
Json 解析器 - 执行网络操作的类
public class JSONParser {
static Context context;
public JSONObject getJSONFromUrl(String url, List<NameValuePair> params) {
HttpResponse httpResponse = null;
InputStream is = null;
JSONObject jObj = null;
String json = "";
HttpClient httpClient = null;
if (isOnline()) {
try {
String u = url;
u = u + "?";
httpClient = UILApplication.getHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
for (int i = 0; i < params.size(); i++) {
u = u + params.get(i).getName() + "="
+ params.get(i).getValue() + "&";
}
Log.d("URL", u);
httpResponse = httpClient.execute(httpPost);
List<Cookie> cookies = ((AbstractHttpClient) httpClient)
.getCookieStore().getCookies();
if (cookies.isEmpty()) {
Log.d("COOK", "response - none");
} else {
for (int i = 0; i < cookies.size(); i++) {
Log.d("COOK", "response - " + cookies.get(i).toString());
}
}
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
Log.d("data is sent", "true");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
} catch (ClientProtocolException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
Log.d("wait", "true");
try {
BufferedReader reader = new BufferedReader(
new InputStreamReader(is, "UTF-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
return null;
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
return null;
}
if (json.contains("error\":2")) {
Log.e("JSON", jObj.toString());
HttpClientFactory.killSession();
UILApplication.login = 2;
return null;
}
if (jObj != null) {
Log.d("JSON", jObj.toString());
}
return jObj;
}
return null;
}
}
HttpClientFactory
public class HttpClientFactory {
private static DefaultHttpClient client = null;
public synchronized static DefaultHttpClient getThreadSafeClient() {
if (client != null) {
Log.d("HTTPCLIEN", "REUSE");
// return client;
} else {
Log.d("HTTPCLIEN", "new");
client = new DefaultHttpClient();
client.getConnectionManager();
HttpParams params = client.getParams();
HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);
HttpProtocolParams.setHttpElementCharset(params, HTTP.UTF_8);
SchemeRegistry schReg = new SchemeRegistry();
schReg.register(new Scheme("http", PlainSocketFactory
.getSocketFactory(), 80));
ClientConnectionManager conMgr = new ThreadSafeClientConnManager(
params, schReg);
client = new DefaultHttpClient(conMgr, params);
// return client;
}
// synchronized (mLock) {
return client;
}
}