[GitHub] [cordova-plugin-file] eduardoewgo opened a new issue #348: FileReader.readAs*(file) returns null onloadend

[GitBox <gi...@apache.org>]

eduardoewgo opened a new issue #348: FileReader.readAs*(file) returns null onloadend
URL: https://github.com/apache/cordova-plugin-file/issues/348
 
 
   # Bug Report
   FileReader.readAs*(file) returns null in **this.result** and has FileError with code: 1 (not found) with video file. 
   
   ## Problem
   The exact same code works fine on iOS, however I can't get it to work on Android.
   
   ## Information
   The command below will make it easier to understand what I'm trying to do.
   
   ### Code
   This is already set
   ```
   <meta http-equiv="Content-Security-Policy" content="default-src * 'self' 'unsafe-inline' 'unsafe-eval' data: gap:">
   ```
   
   Actual code
   ```
   async captureVideoErrorOnAndroid() {
           const printError = (e) => console.log(e);
           navigator.device.capture.captureVideo(function(mediaFiles) {
               const mediaFile = mediaFiles[0];
               console.log(`capture: Got media file: ${JSON.stringify(mediaFile)}`);
     
               // note, on iOS I have to use media.localURL rather than media.fullPath
               // I also tried media.localURL on Android, but the results are the same 
               window.resolveLocalFileSystemURL(mediaFile.fullPath, function(fileEntry){
                   console.log(`capture: Got fileEntry: ${JSON.stringify(fileEntry)}`);
                   fileEntry.file(function (file) {
                       console.log(`capture: Got file: ${JSON.stringify(file)} `);
                       const reader = new FileReader();
   
                       reader.onloadend = function() {
                           console.log(`capture: result: ${this.result}, error: ${JSON.stringify(this.error)}`);
                       };
                       reader.readAsArrayBuffer(file);
   
                   }, printError);
               }, printError)
           }, printError, {limit: 1, quality: 0, duration: 10})
       }
   ```
   ### Output for iOS (working just fine)
   ```
   capture: Got media file: {"name":"58568874201__E85C0792-08F4-4652-9776-9E0815101786.MOV","localURL":"cdvfile://localhost/temporary/58568874201__E85C0792-08F4-4652-9776-9E0815101786.MOV","type":"video/quicktime","lastModified":null,"lastModifiedDate":1563995943708.5723,"size":87457,"start":0,"end":0,"fullPath":"/private/var/mobile/Containers/Data/Application/B8A6D1DC-72B7-4F8C-A106-A137E358E0AA/tmp/58568874201__E85C0792-08F4-4652-9776-9E0815101786.MOV"} (cordova.js, line 1732)
   capture: Got fileEntry: {"isFile":true,"isDirectory":false,"name":"58568874201__E85C0792-08F4-4652-9776-9E0815101786.MOV","fullPath":"/58568874201__E85C0792-08F4-4652-9776-9E0815101786.MOV","filesystem":"<FileSystem: temporary>","nativeURL":"file:///var/mobile/Containers/Data/Application/B8A6D1DC-72B7-4F8C-A106-A137E358E0AA/tmp/58568874201__E85C0792-08F4-4652-9776-9E0815101786.MOV"} (cordova.js, line 1732)
   capture: Got file: {"name":"58568874201__E85C0792-08F4-4652-9776-9E0815101786.MOV","localURL":"cdvfile://localhost/temporary/58568874201__E85C0792-08F4-4652-9776-9E0815101786.MOV","type":"video/quicktime","lastModified":1563995943708.5723,"lastModifiedDate":1563995943708.5723,"size":87457,"start":0,"end":87457}  (cordova.js, line 1732)
   capture: result: [object ArrayBuffer], error: null (cordova.js, line 1732)
   ```
   
   ### Output for Android (with result being null)
   ```
   capture: Got media file: {"name":"VID_20190725_030555.3gp","localURL":"cdvfile://localhost/sdcard/DCIM/Camera/VID_20190725_030555.3gp","type":"video/3gpp","lastModified":null,"lastModifiedDate":1563995159000,"size":75157,"start":0,"end":0,"fullPath":"file:///storage/emulated/0/DCIM/Camera/VID_20190725_030555.3gp"}
   capture: Got fileEntry: {"isFile":true,"isDirectory":false,"name":"VID_20190725_030555.3gp","fullPath":"/DCIM/Camera/VID_20190725_030555.3gp","filesystem":"<FileSystem: sdcard>","nativeURL":"file:///storage/emulated/0/DCIM/Camera/VID_20190725_030555.3gp"}
   capture: Got file: {"name":"VID_20190725_030555.3gp","localURL":"cdvfile://localhost/sdcard/DCIM/Camera/VID_20190725_030555.3gp","type":"video/3gpp","lastModified":1563995159000,"lastModifiedDate":1563995159000,"size":75157,"start":0,"end":75157} 
   capture: result: null, error: {"code":1}
   ```
   
   ### Platform
   Android 8.0.0
   
   
   ### Version information
   Cordova 8.1.2
   cordova-plugin-file 6.0.2
   
   ## Checklist
   <!-- Please check the boxes by putting an x in the [ ] like so: [x] -->
   
   - [x] I searched for existing GitHub issues
   - [x] I updated all Cordova tooling to most recent version
   - [x] I included all the necessary information above
   

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