import com.vk.sdk.util.VKUtil; //导入依赖的package包/类
boolean processUrl(String url) {
	if (url.startsWith(REDIRECT_URL)) {
		Intent data = new Intent(VK_RESULT_INTENT_NAME);
		String extraData = url.substring(url.indexOf('#') + 1);
		data.putExtra(VK_EXTRA_TOKEN_DATA, extraData);
		Map<String, String> resultParams = VKUtil.explodeQueryString(extraData);

		if (vkOpenAuthDialog.mVkError != null) {
			data.putExtra(VK_EXTRA_VALIDATION_REQUEST, vkOpenAuthDialog.mVkError.request.registerObject());
		}
		if (resultParams != null && (resultParams.containsKey(ERROR) || resultParams.containsKey(CANCEL))) {
			vkOpenAuthDialog.setResult(Activity.RESULT_CANCELED, data);
		} else {
			vkOpenAuthDialog.setResult(Activity.RESULT_OK, data);
		}
		vkOpenAuthDialog.finish();
		return true;
	}
	return false;
}
 

import com.vk.sdk.util.VKUtil; //导入依赖的package包/类
@Override
protected VKRequest getSaveRequest(JSONObject response) {
    VKRequest saveRequest;
    try {
        saveRequest = VKApi.docs().save(new VKParameters(VKJsonHelper.toMap(response)));
    } catch (JSONException e) {
        return null;
    }
    if (mGroupId != 0)
        saveRequest.addExtraParameters(VKUtil.paramsFrom(VKApiConst.GROUP_ID, mGroupId));
    return saveRequest;
}
 

import com.vk.sdk.util.VKUtil; //导入依赖的package包/类
private String generateSig(VKAccessToken token) {
    //Read description here https://vk.com/dev/api_nohttps
    //At first, we need key-value pairs in order of request
    String queryString = VKStringJoiner.joinParams(mPreparedParameters);
    //Then we generate "request string" /method/{METHOD_NAME}?{GET_PARAMS}{POST_PARAMS}
    queryString = String.format(Locale.US, "/method/%s?%s", methodName, queryString);
    return VKUtil.md5(queryString + token.secret);

}
 

import com.vk.sdk.util.VKUtil; //导入依赖的package包/类
@Override
protected VKRequest getSaveRequest(JSONObject response) {
    VKRequest saveRequest;
    try {
        saveRequest = VKApi.photos().saveWallPhoto(new VKParameters(VKJsonHelper.toMap(response)));
    } catch (JSONException e) {
        return null;
    }
    if (mUserId != 0)
        saveRequest.addExtraParameters(VKUtil.paramsFrom(VKApiConst.USER_ID, mUserId));
    if (mGroupId != 0)
        saveRequest.addExtraParameters(VKUtil.paramsFrom(VKApiConst.GROUP_ID, mGroupId));
    return saveRequest;
}
 

import com.vk.sdk.util.VKUtil; //导入依赖的package包/类
@Override
protected VKRequest getSaveRequest(JSONObject response) {
    VKRequest saveRequest;
    try {
        saveRequest = VKApi.photos().save(new VKParameters(VKJsonHelper.toMap(response)));
    } catch (JSONException e) {
        return null;
    }
    if (mAlbumId != 0)
        saveRequest.addExtraParameters(VKUtil.paramsFrom(VKApiConst.ALBUM_ID, mAlbumId));
    if (mGroupId != 0)
        saveRequest.addExtraParameters(VKUtil.paramsFrom(VKApiConst.GROUP_ID, mGroupId));
    return saveRequest;

}
 

import com.vk.sdk.util.VKUtil; //导入依赖的package包/类
/**
 * Retrieve token from key-value query string
 *
 * @param urlString string that contains URL-query part with token. E.g. access_token=eee&expires_in=0...
 * @return parsed token
 */
public static VKAccessToken tokenFromUrlString(String urlString) {
    if (urlString == null)
        return null;
    Map<String, String> parameters = VKUtil.explodeQueryString(urlString);

    return tokenFromParameters(parameters);
}
 

import com.vk.sdk.util.VKUtil; //导入依赖的package包/类
/**
 * Retrieve token from file. Token must be saved into file with saveTokenToFile method
 *
 * @param filePath path to file with saved token
 * @return Previously saved token or null
 */
public static VKAccessToken tokenFromFile(String filePath) {
    try {
        String data = VKUtil.fileToString(filePath);
        return tokenFromUrlString(data);
    } catch (Exception e) {
        return null;
    }
}
 

import com.vk.sdk.util.VKUtil; //导入依赖的package包/类
/**
 * Creates the http client (if need). Returns reusing client
 *
 * @return Prepared client used for API requests loading
 */
public static VKHttpClient getClient() {
    if (sInstance == null) {
        SchemeRegistry schemeRegistry = new SchemeRegistry();
        schemeRegistry.register(new Scheme("http",
                PlainSocketFactory.getSocketFactory(), 80));
        schemeRegistry.register(new Scheme("https",
                SSLSocketFactory.getSocketFactory(), 443));
        HttpParams params = new BasicHttpParams();
        Context ctx = VKUIHelper.getTopActivity();

        try {
            if (ctx != null)
            {
                PackageManager packageManager = ctx.getPackageManager();
                if (packageManager != null) {
                    PackageInfo info = packageManager.getPackageInfo(ctx.getPackageName(), 0);
                    params.setParameter(CoreProtocolPNames.USER_AGENT,
                            String.format(Locale.US,
                                    "%s/%s (%s; Android %d; Scale/%.2f; VK SDK %s; %s)",
                                    VKUtil.getApplicationName(ctx), info.versionName,
                                    Build.MODEL, Build.VERSION.SDK_INT,
                                    ctx.getResources().getDisplayMetrics().density,
                                    VKSdkVersion.SDK_VERSION,
                                    info.packageName));
                }
            }
        } catch (Exception ignored) {
        }
        sInstance = new VKHttpClient(new ThreadSafeClientConnManager(params, schemeRegistry),
                params);
    }
    return sInstance;
}