我有一个方法可以在我的Android应用程序中异步更新帐户列表。
方法看起来像这样
<?php
ob_start();
//RJ Application Form
//Connect Database
include('admin/connect.php');
//Set Variable
$name = $sex = $zone = $email = $mobile = $education = $why_to_be_rj = $file_name = "";
//Set Error array
$errors = array();
if (isset($_POST['submit']) && $_SERVER["REQUEST_METHOD"] == "POST") {
//Function to process data
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
//Check Name
if (empty($_POST["name"])) {
$errors['nameErr'] = 'Enter your name';
} else {
$name = test_input($_POST['name']);
// check if name only contains letters and whitespace
if (!preg_match("/^[a-zA-Z ]*$/", $name)) {
$errors['nameErr'] = 'Only letters and white space allowed';
}
}
//Check Sex
if ($_POST['sex'] == '1') {
$errors['sexErr'] = 'Select your sex';
} else {
$sex = $_POST['sex'];
}
//Check Audition Zone
if (empty($_POST["zone"])) {
$errors['$zoneErr'] = 'Enter your zone';
} else {
$zone = $_POST['zone'];
}
//Check Email
if (empty($_POST["email"])) {
$errors['emailErr'] = 'Enter your email';
} else {
$email = test_input($_POST['email']);
// check if e-mail address is well-formed
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$errors['emailErr'] = 'Invalid email format';
}
}
//Check Mobile
if (empty($_POST["mobile"])) {
$errors['mobileErr'] = 'Enter your mobile';
} else {
$mobile = test_input($_POST['mobile']);
if (!preg_match("/^[\+0-9\-\(\)\s]*$/", $mobile)) {
$errors['mobileErr'] = 'Only numbers are allowed';
}
}
//Check Education
if ($_POST["education"] == '1') {
$errors['educationErr'] = 'Select your education';
} else {
$education = $_POST['education'];
}
//Check Description
if (empty($_POST["about"])) {
//$why_to_be_rjErr = 'Enter why you want to be a RJ';
$errors['why_to_be_rjErr'] = 'Enter why you want to be a RJ';
} else {
$why_to_be_rj = test_input($_POST['about']);
}
//File Upload
if(!empty($_FILES['fileToUpload']['name']) && !empty($_FILES['fileToUpload']['tmp_name'])){
$uploadErr = array();
$target_dir = "uploads/";
//rename file before upload
$file_name = $name.$mobile.$_FILES["fileToUpload"]["name"];
$target_file = $target_dir . $name. $mobile. basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$audioFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Allow certain file formats
if($audioFileType != "AMR" &&
$audioFileType != "amr" &&
$audioFileType != "MP3" &&
$audioFileType != "mp3" &&
$audioFileType != "WAV" &&
$audioFileType != "wav" &&
$audioFileType != "AAC" &&
$audioFileType != "aac" ) {
//echo "Sorry, only AMR, MP3, WAV & AAC files are allowed.";
$uploadErr['fileErr'] = "Sorry, only AMR, MP3, WAV & AAC files are allowed.";
$uploadOk = 0;
}else{
// Check file size
if ($_FILES["fileToUpload"]["size"] > 100000000) {
echo "Sorry, your file is too large.";
$uploadErr['fileErr'] = "Sorry, your file is too large.";
$uploadOk = 0;
}else if(!$errors){
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
$file_upload_success = "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
$uploadErr['fileErr'] = "Sorry, there was an error uploading your file.";
}
}
}
}
// // Check if image file is a actual image or fake image
// $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
// if($check !== false) {
// echo "File is an image - " . $check["mime"] . ".";
// $uploadErr['fileErr'] = "File is an image - " . $check["mime"] . ".";
// $uploadOk = 1;
// } else {
// echo "File is not an image.";
// $uploadErr['fileErr'] = "File is not an image.";
// $uploadOk = 0;
// }
// // Check if file already exists
// if (file_exists($target_file)) {
// echo "Sorry, file already exists.";
// $uploadErr['fileErr'] = "Sorry, file already exists.";
// $uploadOk = 0;
// }
// // Check if $uploadOk is set to 0 by an error
// if ($uploadOk == 0) {
// echo "Sorry, your file was not uploaded.";
// $uploadErr['fileErr'] = "Sorry, your file was not uploaded.";
// // if everything is ok, try to upload file
// } else {
// if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
// echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
// $file_upload_success = "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
// } else {
// echo "Sorry, there was an error uploading your file.";
// $uploadErr['fileErr'] = "Sorry, there was an error uploading your file.";
// }
// }
if(!$errors){//Check if there is any errors. if no errors, then the data will be inserted into the database
//SQL to input data into rj-hunt table
$sql = "INSERT INTO `rj_hunt`(`name`, `sex`, `audition_zone`, `email`, `mobile`, `education`, `why_to_be_rj`, `voice`)
VALUES ('$name','$sex','$zone','$email','$mobile','$education','$why_to_be_rj','$file_name')";
//mysqli query. $conn is included at the begining of the script.
mysqli_query($conn, $sql);
//After iserting data successfully, redirect to a sub page to show success message.
header("location: rj-hunt.php?submit=success");
}//if no error, process done.
}//if clicked in submit button and method is post.
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="keywords" content="WebRTC getUserMedia MediaRecorder API">
<link rel="icon" href="img/ico.png">
<title>RJ HUNT</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<style>
body { margin:0; padding:0; background: url(img/back.jpg); background-size:cover; position:relative; min-height:100vh; width:100%;}
.hunt-form{
margin-top: 20px;
}
.form-top{
background: #740808;
width: 31%;
margin: auto;
border-radius: 5px;
}
.form-top h2{
color: #ffc905;
padding: 10px 0;
font-family: Verdana;
}
form{
background: #740808;
padding: 20px 0 10px 10px;
border-radius: 10px;
border: 10px solid #97614B;
width: 80%;
margin: auto;
}
label{
color: #ffc905;
}
.error{
color: red;
}
.after-submit-message{
width: 50%;
margin: auto;
}
.after-submit-message h3{
background: yellowgreen;
color: #fff;
padding: 5px;
}
.btn-warning{
background: #EC971F;
}
button{
margin: 10px 5px;
}
li{
margin: 10px;
}
body{
width: 90%;
max-width: 960px;
margin: 0px auto;
}
#btns{
display: none;
}
h1{
margin: 100px;
}
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-10 col-md-offset-1">
<div class="hunt-form">
<div class="form-top">
<h2 class="text-center"></h2>
</div>
<div class="after-submit-message">
<?php if(isset($_GET['submit']) && $_GET['submit']=='success'){echo '<h3 class="text-center">Your information submitted successfully</h3>';}?>
</div>
<form class="form-horizontal" method="post" action="" enctype="multipart/form-data">
<div class="form-group">
<label class="col-sm-4 control-label" for="name">Name:</label>
<div class="col-sm-6">
<input class="form-control" value="<?php echo $name; ?>" type="text" name="name" id="name" placeholder="Name">
<span class="error"><?php if(isset($errors['nameErr'])){echo $errors['nameErr'];} ?></span>
</div>
</div>
<div class="form-group">
<label class="col-sm-4 control-label" for="sex">Sex:</label>
<div class="col-sm-3">
<select class="form-control" name="sex" id="sex">
<option value="1">-- Select --</option>
<option value="Male" <?php if($sex == 'Male'){echo 'selected';}?>>Male</option>
<option value="Female" <?php if($sex == 'Female'){echo 'selected';}?>>Female</option>
</select>
<span class="error"><?php if(isset($errors['sexErr'])){echo $errors['sexErr'];} ?></span>
</div>
</div>
<div class="form-group">
<label class="col-sm-4 control-label" for="zone">Audition Zone:</label>
<div class="col-sm-3">
<select class="form-control" name="zone" id="zone">
<option value="Dhaka">Dhaka</option>
</select>
<span class="error"><?php if(isset($errors['zoneErr'])){echo $errors['zoneErr'];} ?></span>
</div>
</div>
<div class="form-group">
<label class="col-sm-4 control-label" for="email">Email:</label>
<div class="col-sm-6">
<input class="form-control" value="<?php echo $email; ?>" type="email" name="email" id="email" placeholder="Email">
<span class="error"><?php if(isset($errors['emailErr'])) {echo $errors['emailErr'];} ?></span>
</div>
</div>
<div class="form-group">
<label class="col-sm-4 control-label" for="mobile">Mobile:</label>
<div class="col-sm-6">
<input class="form-control" value="<?php echo $mobile; ?>" type="tel" name="mobile" id="mobile" placeholder="Mobile">
<span class="error"><?php if(isset($errors['mobileErr'])) {echo $errors['mobileErr'];} ?></span>
</div>
</div>
<div class="form-group">
<label class="col-sm-4 control-label" for="education">Education Level:</label>
<div class="col-sm-3">
<select class="form-control" name="education" id="education">
<option value="1">-- Select --</option>
<option value="Hsc" <?php if($education == 'Hsc'){echo 'selected';}?>>HSC</option>
<option value="Undergraduate" <?php if($education == 'Undergraduate'){echo 'selected';}?>>Undergraduate</option>
<option value="Ggraduate" <?php if($education == 'Ggraduate'){echo 'selected';}?>>Graduate</option>
</select>
<span class="error"><?php if(isset($errors['educationErr'])) {echo $errors['educationErr'];} ?></span>
</div>
</div>
<div class="form-group">
<label class="col-sm-4 control-label" for="about">Why you want to be a RJ:<br/>(300 words)</label>
<div class="col-sm-6">
<textarea class="form-control" name="about" id="about" rows="4" placeholder="Why you want to be a RJ? (300 words)"><?php echo $why_to_be_rj; ?></textarea>
<span class="error"><?php if(isset($errors['why_to_be_rjErr'])) {echo $errors['why_to_be_rjErr'];} ?></span>
</div>
</div>
<div class="form-group">
<label class="col-sm-4 control-label" for="fileToUpload">Add Voice</label>
<div class="col-sm-4">
<input class="form-control" value="<?php echo $file_name;?>" type="file" name="fileToUpload" id="fileToUpload">
<span class="error"><?php if(isset($uploadErr['fileErr'])) {echo $uploadErr['fileErr'];} ?></span>
</div>
</div>
<div form-group>
<label class="col-sm-4 control-label" id='mediaAudio'>Record Voice</label>
<div class="col-sm-4">
<div id='gUMArea'>
<input class="btn btn-default" id='gUMbtn' value="Use Microphone">
</div>
<div id='btns'>
<button class="btn btn-default" id='start'>Start</button>
<button class="btn btn-default" id='stop'>Stop</button>
</div>
<div>
<ul class="list-unstyled" id='ul'></ul>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-8 col-sm-offset-4">
<input class="btn btn-warning btn-lg" type="submit" name="submit" id="submit" value="Submit">
</div>
</div>
</form>
</div>
</div>
</div>
</div>
<!--<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>-->
<script src="https://code.jquery.com/jquery-2.2.0.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<script src="js/media-recorder.js"></script>
</body>
</html>
<?php ob_end_flush();?>
这是更新帐户的方法。
public void updateAccounts(List<String> accountIds, final SampleCallback callback) {
for (String accountId : accountIds) {
getAccountsAsync(accountId, new MySampleCallback() {
@Override public void result(AccountResponse response) {
callback(response);
}
}
}
}
这是我的回调界面
void getAccountsAsync(String accountId, final MySampleCallback callback) {
//Execution of request
callback.result(new AccountsResponse("Just a sample response from the service"));
}
问题是，在我执行循环时，我只得到列表最后一项的结果，例如 我有一个String列表 - ＆gt; “一个”，“两个”，“三个”
我得到的唯一结果是最后一项的三个结果。
其他两个被忽略，但是它们仍然被执行但是返回给我的唯一结果是最后一项。
我想要做的是，在循环的下一次迭代之前，我可以在执行下一次循环之前停止它吗？更像是运行使这个Async同步运行。
感谢。
答案 0 :(得分：0)
我认为你试图以错误的方式解决这个问题。您需要对N个项目进行异步调用。而不是进行N次调用，编写一个调用服务器上的一组id。