我是PhoneGap / Cordova开发的新手。最近有一个关于iOS的更新，它要求用户在使用麦克风之前授予应用程序权限。
我曾尝试更新“包” - 媒体和媒体捕获，但它仍无法正常工作。 我也尝试了一个名为cordova-phonegap-audio-encode的插件，但它也没有用。
以下是我的代码：
Record.html（这是用户进行交互并触发权限/录制音频的页面/界面）
<html>
<head>
<title>System</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script src="../js/cordova-2.3.0.js"></script>
<script src="../js/config.js"></script>
<script src="../js/languages.js"></script>
<script src="beJS.js"></script>
<link rel="stylesheet" href="../js/jquery.mobile-1.3.0.min.css" />
<script src="../js/jquery-1.8.2.min.js"></script>
<script src="../js/jquery.mobile-1.3.0.min.js"></script>
<script scr="../js/RecordPermission.js"></script>
</head>
<body >
<div data-role="page" id="beRecordPage">
<div data-role="header" data-theme="c" data-position="fixed">
<a href="index.html" id="btnMenu" target="_self" data-icon="home" data-ajax='false'></a>
<h1 id="be_header_record"></h1>
</div><!-- /header -->
<div data-role="content" >
<div class="content-primary" id='programContent' >
<label for="length" id="be_reocrd_lbl_scriptName"></label>
<input type="text" name='scriptName' id="scriptName" value="" data-clear-btn="true" maxlength="30"/>
<hr/>
<div data-role="controlgroup" >
<button type="button" data-theme="c" id="be_reocrd_btn_record" onclick='record();'></button>
<button type="button" data-theme="c" id="be_reocrd_btn_play" onclick='playRecord();'></button>
<button type="button" data-theme="c" id="be_reocrd_btn_delete" onclick='deleteRecord();'></button>
</div>
<div><!-- /content-primary -->
<div><!-- /content -->
</div><!-- /page -->
<script>
var isRecorded = false;
var isRecording = false;
var isPlaying = false;
var recordResult =false;
var lastSrc = "";
var src = "";
var mediaRec;
function playRecord(){
if(isRecorded && !isRecording){
if(isPlaying){
stopPlaying();
}else{
mediaRec = new Media(lastSrc, stopPlaying,null);
mediaRec.play();
isPlaying = true;
$('#be_reocrd_btn_record').button('disable');
$('#be_reocrd_btn_delete').button('disable');
$('#be_reocrd_btn_play').text(language[langCode].be_reocrd_btn_stop);
$('#be_reocrd_btn_play').button('refresh');
}
}else{
alert(language[langCode].be_reocrd_msg_pleaseRecord);
}
}
function deleteRecord(){
if(isRecorded && !isRecording && !isPlaying){
var confirmation=confirm(language[langCode].be_reocrd_msg_deleteConfirmation);
if(confirmation){
performDeleteRecord()
}
}else{
alert(language[langCode].be_reocrd_msg_deleteError);
}
}
var fileRoot;
function onFileSystemSuccess(fileSystem) {
fileRoot = fileSystem.root;
fileRoot.getFile(lastSrc, {create: false}, onGetFileSuccess, onError);
}
function onGetFileSuccess(entry){
entry.remove(function() {
var idx = --localStorage.SYS_RECORDFILEINDEX;
localStorage.removeItem("SYS_RECORD_NAME"+idx);
localStorage.removeItem("SYS_RECORD_PATH"+idx);
alert(language[langCode].be_reocrd_msg_deleteSuccessful);
}, onError
);
}
function onError() {
alert(language[langCode].be_reocrd_msg_deleteFailure);
}
function onRequestFileSystemSuccess(fileSystem) {
src = fileSystem.root.fullPath + '/' + src;
fileSystem.root.getFile(src, {create: true}, function() {
mediaRec = new Media(src, successRecord,failRecord);
mediaRec.startRecord();
}, function(err) {
alert(err.message);
}
);
/*
var entry=fileSystem.root;
entry.getDirectory(recordFileFolder, {create: true, exclusive: false}, onGetDirectorySuccess, onGetDirectoryFail);
*/
}
function onGetDirectorySuccess(dir) {
alert("Created dir "+dir.name);
mediaRec = new Media(src, successRecord,failRecord);
mediaRec.startRecord();
}
function onGetDirectoryFail(error) {
alert("Error creating directory "+error.code);
}
function performDeleteRecord(){
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
return true;
}
function successRecord(){
isRecorded = true;
recordResult = true;
lastSrc = src;
var idx = localStorage.SYS_RECORDFILEINDEX;
localStorage["SYS_RECORD_NAME"+idx] = $('#scriptName').attr('value');
localStorage["SYS_RECORD_PATH"+idx] = lastSrc;
localStorage.SYS_RECORDFILEINDEX++;
}
function stopPlaying(){
if(mediaRec != null){
mediaRec.stop();
mediaRec = null;
}
isPlaying = false;
$('#be_reocrd_btn_record').button('enable');
$('#be_reocrd_btn_delete').button('enable');
$('#be_reocrd_btn_play').text(language[langCode].be_reocrd_btn_play);
$('#be_reocrd_btn_play').button('refresh');
}
function failRecord(err){
alert(err.message);
alert(language[langCode].be_reocrd_msg_recordFailure);
$('#be_reocrd_btn_record').text(language[langCode].be_reocrd_btn_start);
recordResult = false;
}
function performRecord(){
var result = false;
src = recordFileFolder+new Date().getTime()+".wav";
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onRequestFileSystemSuccess, null);
// mediaRec = new Media(src, successRecord,failRecord);
// mediaRec.startRecord();
}
function record(){
if($('#scriptName').attr('value') == ''){
alert(language[langCode].be_reocrd_msg_pleaseInputName);
return;
}
if(!isPlaying){
if(!isRecording){
$('#be_reocrd_btn_record').text(language[langCode].be_reocrd_btn_stop);
$('#be_reocrd_btn_play').button('disable');
$('#be_reocrd_btn_delete').button('disable');
isRecording = true;
performRecord();
}else{
mediaRec.stopRecord();
isRecording = false;
$('#be_reocrd_btn_record').text(language[langCode].be_reocrd_btn_start);
$('#be_reocrd_btn_play').button('enable');
$('#be_reocrd_btn_delete').button('enable');
}
$('#be_reocrd_btn_record').button('refresh');
}else{
alert(language[langCode].be_reocrd_msg_pleaseStopPlaying);
}
}
$('#beRecordPage').live('pagecreate',function(event){
checkLoggedIn();
$('#be_header_record').text(language[langCode].be_header_record);
$('#btnMenu').text(language[langCode].menu);
$('#be_reocrd_lbl_scriptName').text(language[langCode].be_reocrd_lbl_scriptName);
$('#be_reocrd_btn_record').text(language[langCode].be_reocrd_btn_start);
$('#be_reocrd_btn_play').text(language[langCode].be_reocrd_btn_play);
$('#be_reocrd_btn_delete').text(language[langCode].be_reocrd_btn_delete);
});
</script>
</body>
</html>
这是RecordPermission.js
window.recordPermission = function(params) {
cordova.exec(function(answer){
if (answer === "True") params.success(true);
else if (answer === "False") params.success(false);
else params.error('success called with "'+answer+'". Must be "True" or "False" strings');
}, params.error,"RecordPermission", "recordPermission");
};
以下是RecordPermission.m
#import "RecordPermission.h"
@implementation RecordPermission
@synthesize callbackId;
- (void)recordPermission:(CDVInvokedUrlCommand*)command
{
self.callbackId = command.callbackId;
// First check to see if we are in ios 7.
NSArray *vComp = [[UIDevice currentDevice].systemVersion componentsSeparatedByString:@"."];
if ([[vComp objectAtIndex:0] intValue] < 7) {
// before iOS7 when this permission was not required or setable by the user
[self performSelectorOnMainThread:@selector(doSuccessCallback:) withObject:@"True" waitUntilDone:NO];
} else {
// run this in a try just in case
@try {
[[AVAudioSession sharedInstance] requestRecordPermission:^(BOOL granted) {
// cast this to a string bc I don't know if you can or how to pass a boolean back to javascript.
// This is converted back to a javascript boolean in RecordPermission.h.js file
NSString * grantedString = (granted) ? @"True" : @"False";
// talking back to javascript must be done in main thread.
[self performSelectorOnMainThread:@selector(doSuccessCallback:) withObject:grantedString waitUntilDone:NO];
}];
} @catch (id exception) {
NSLog(@"recordPermission try error");
CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_JSON_EXCEPTION messageAsString:[exception reason]];
NSString* javaScript = [pluginResult toErrorCallbackString:command.callbackId];
[self writeJavascript:javaScript];
}
}
}
-(void) doSuccessCallback:(NSString*)granted {
CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString:granted];
NSString* javaScript = [pluginResult toSuccessCallbackString:self.callbackId];
[self writeJavascript:javaScript];
}
@end
这是RecordPermission.h
#import <Foundation/Foundation.h>
#import <AVFoundation/AVFoundation.h>
#import <Cordova/CDV.h>
@interface RecordPermission : CDVPlugin{
NSString* callbackId;
}
@property (nonatomic, retain) NSString* callbackId;
- (void)recordPermission:(NSArray*)arguments ;
@end
到目前为止，我无法触发权限，我选中了“设置”，其中应用未显示在“麦克风”页面上。
请帮忙！谢谢。