Question

嘿伙计们我正在使用recyclerview来显示我的图片，但他们同时复制了我在Google搜索此问题的vaule我发现了this和this以及this或更多，但没有人正在帮助

我的代码是

class PaypalnvpComponent {

    private static $API_Username = PAYPAL_API_USERNAME;
    private static $API_Password = PAYPAL_API_PASSWORD;
    private static $API_Signature = PAYPAL_API_SIGNATURE;
    private static $API_Environment = PAYPAL_API_MODE;
    private static $API_Version = '116.0';

    public static function Call($methodName,$params){
        if(self::$API_Environment == 'LIVE'){
            $API_Endpoint = "https://api-3t.paypal.com/nvp";            
        }else{
            $API_Endpoint = "https://api-3t.sandbox.paypal.com/nvp";
        }

        $nvpstr = "";
        foreach($params as $k=>$v){
            $nvpstr .="&".$k."=".urlencode($v);
        }

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $API_Endpoint);
        curl_setopt($ch, CURLOPT_VERBOSE, 1);

        //Turn of server and pakagemanager
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);

        //set the API operation,version,API signature in requrest

        $nvpreq ="";
        $nvpreq .= "METHOD=".urlencode($methodName);
        $nvpreq .= "&VERSION=".urlencode(self::$API_Version);
        $nvpreq .= "&PWD=".urlencode(self::$API_Password);
        $nvpreq .= "&USER=".urlencode(self::$API_Username);
        $nvpreq .= "&SIGNATURE=".urlencode(self::$API_Signature);
        $nvpreq .= $nvpstr;

        //set the request as POST field for curl
        curl_setopt($ch, CURLOPT_POSTFIELDS, $nvpreq);

        //get the response from server
        $httpResponse = curl_exec($ch);

        if(!$httpResponse){
            return "$methodName failed:".curl_error($ch).'('.curl_errno($ch).')';
        }

        //Extract the response details

        $httpResponseArray = explode('&', $httpResponse);

        $httpParsedResponseArray = array();

        foreach ($httpResponseArray as $i=>$value){
            $tmpArray = explode('=', $value);
            if(sizeof($tmpArray) > 1){
                $httpParsedResponseArray[$tmpArray[0]] = urldecode($tmpArray[1]);
            }
        }
        if((0 == sizeof($httpParsedResponseArray)) || !array_key_exists('ACK',$httpParsedResponseArray)){
            return "Invalid HTTP Response for POST request($nvpreq) to $API_Endpoint.";

        }
        return $httpParsedResponseArray;        
    }


    #----------------------------
    # @$hok
    # mass payment with multiple users in one go
    # paypal transaction status will be : Completed, Failed, Returned, Reversed, Unclaimed, Pending, Blocked
    #----------------------------
    public static function MassPay($params){
        $methodName = "MassPay";        
        return self::Call($methodName, $params);
    }

    public static function GetTransactionDetail($params){
        $methodName = "GetTransactionDetails";        
        return self::Call($methodName, $params);        
    }

    public static function TransactionSearch($params){
        $methodName = "TransactionSearch";        
        return self::Call($methodName, $params);        
    }
}

# below is the example how to use above class
$params = array();
$params["RECEIVERTYPE"] = "EmailAddress";
$params["EMAILSUBJECT"] = "Your withdraw request was processed";

$params["L_AMT0"] = 1;
$params["L_EMAIL0"] = "xyz@xyz.abc"; 
$params["L_UNIQUEID0"] = rand(11111,9999999);

$params["L_AMT1"] = 2;
$params["L_EMAIL1"] = "hamed-buyer@lifeofu.com"; 
$params["L_UNIQUEID1"] = rand(11111,9999999);

$params["L_AMT2"] = 3;
$params["L_EMAIL2"] = "testuser1@test1.com"; 
$params["L_UNIQUEID2"] = rand(11111,9999999);

$params["CURRENCYCODE"] = "USD";       

$result = PaypalnvpComponent::MassPay($params);


//transaction detial  
$params = array();
$params["TRANSACTIONID"] = TRANSACTIONID_HERE; 
$result = PaypalnvpComponent::GetTransactionDetail($params);

image is here

Answer 1

将布局中的高度（（R.layout.img_row）更改为wrap_content而不是match_content

Answer 2

我怀疑您可能听说setHasStableIds(true)加快了您的回收视图，但请尝试将其删除或设置为false。

所以，试试这个：

setHasStableIds(false);

然后让我知道会发生什么;

我有这个问题，有时候项目是重复的，有时根本就没有出现过，在删除该方法调用后，它解决了我的问题！

祝你好运，编码愉快！

Answer 3

用以下内容替换上面的行：

public class ImageAdapter extends RecyclerView.Adapter<ImageAdapter.ViewHolder> {

    @Override
public ImageAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View v = LayoutInflater.from(parent.getContext())
    .inflate(R.layout.img_row, parent, false);
 ImageAdapter.ViewHolder viewHolder = new ImageAdapter.ViewHolder(v);
return viewHolder;
}

@Override
public void onBindViewHolder(final ImageAdapter.ViewHolder holder, final int position) {

ImgModel model = listmodel.get(holder.getAdapterPosition()
    );
...........
..............
}

}

RecyclerView复制项目一段时间

3 个答案: