在iPad上加载大于256MB的文件时，应用程序崩溃

我无法理解崩溃应用程序的原因。 如果有人遇到同样的问题，请告诉我。

cordova3.5.0
插件版本：
FileTransfer 0.4.4
文件1.2.0
InAppBrowse 0.5.0

iPad 2版本7.1.2
上传文件iOS> 256MB时出错

日志设备：

Jul 21 18:17:01 iPad-Sergej MyApp[160] <Warning>: CDVWebViewDelegate: Navigation started when state=1 Jul 21 18:17:01 iPad-Sergej MyApp[160] <Warning>: Failed to load webpage with error: CDVWebViewDelegate: Navigation started when state=1 Jul 21 18:17:01 iPad-Sergej MyApp[160] <Warning>: THREAD WARNING: ['File'] took '68.479980' ms. Plugin should use a background thread. Jul 21 18:17:01 iPad-Sergej MyApp[160] <Error>: MyApp(160,0x3b50818c) malloc: *** mach_vm_map(size=408289280) failed (error code=3) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug Jul 21 18:17:01 iPad-Sergej MyApp[160] <Error>: *** Terminating app due to uncaught exception 'NSFileHandleOperationException', reason: '*** -[NSConcreteFileHandle readDataOfLength:]: Cannot allocate memory' *** First throw call stack: (0x2e49af83 0x38f81ccf 0x2e49aec5 0x2ee49931 0x2ee49fe3 0xceee7 0xd1a8d 0xbcd09 0xbc9ff 0x2ee7b163 0x2e466167 0x2e465d7f 0x2e46411b 0x2e3ceebf 0x2e3ceca3 0x332c9663 0x30d1b14d 0xbffb7 0x3948eab7) Jul 21 18:17:01 iPad-Sergej ReportCrash[161] <Notice>: ReportCrash acting against PID 160 Jul 21 18:17:02 iPad-Sergej ReportCrash[161] <Notice>: Formulating crash report for process MyApp[160] Jul 21 18:17:02 iPad-Sergej mediaserverd[45] <Warning>: 18:17:02.266 [0x5ee000] CMSession retain count > 1! Jul 21 18:17:02 iPad-Sergej com.apple.launchd[1] (UIKitApplication:com.MyApp[0xd3ac][160]) <Warning>: (UIKitApplication:com.MyApp[0xd3ac]) Job appears to have crashed: Abort trap: 6 Jul 21 18:17:02 iPad-Sergej backboardd[29] <Warning>: Application 'UIKitApplication:com.MyApp[0xd3ac]' exited abnormally with signal 6: Abort trap: 6 Jul 21 18:17:02 iPad-Sergej SpringBoard[33] <Warning>: [MPUSystemMediaControls] Updating supported commands for now playing application. Jul 21 18:17:02 iPad-Sergej ReportCrash[161] <Notice>: Saved crashreport to /var/mobile/Library/Logs/CrashReporter/MyApp_2014-07-21-181701_iPad-Sergej.ips using uid: 0 gid: 0, synthetic_euid: 501 egid: 0 

代码function上传：

 function uploadVideo(meeting_id) { navigator.camera.getPicture( successGetFileFromCamera, failGetFileFromCamera, { quality: 50, destinationType: navigator.camera.DestinationType.FILE_URI, sourceType: navigator.camera.PictureSourceType.PHOTOLIBRARY, mediaType: navigator.camera.MediaType.VIDEO } ); function successGetFileFromCamera(fileURI) { uploadFileToServ(fileURI); } function uploadFileToServ(fileURI) { window.resolveLocalFileSystemURL(fileURI, successGetFileFromLocal, failGetFileFromLocal); function successGetFileFromLocal(fileEntry) { fileEntry.file(successFile, failFile); function successFile(fileObj) { var localURL = fileObj.localURL, fileName = fileObj.name; var options = new FileUploadOptions(); options.fileKey = "my_video"; options.fileName = fileName; options.mimeType="video/mp4"; var params = {}; params.meeting_id = meeting_id; options.params = params; options.chunkedMode = true; var ft = new FileTransfer(); ft.onprogress = function(progressEvent) { if(progressEvent.lengthComputable) { updateProgress(Number(((progressEvent.loaded / progressEvent.total) * 100).toFixed(1))); } }; showProgress(); ft.upload(localURL, encodeURI(window.host + "/myserver/mobile/uploadFile/t:" + window.Token), successUploadFileToServ, failUploadFileToServ, options); } } } 

Answer 1

我认为这是错误信息的关键部分：

不能分配内存

iPad 2只有512MB的内存，所以你似乎在推动硬件。