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https://issues.apache.org/jira/browse/CB-14110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16497624#comment-16497624
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Ken Naito commented on CB-14110:
--------------------------------
I checked this issue using cordova 7.1.0, cordova-android 6.3.0 and
cordova-plugin-file 6.0.1
As Joel Henry pointed out, the readAsText does not work for 500000bytes text
file. (Wrong text length is shown)
On the other hands the readAsText works for 1000bytes text file and 200000bytes
text file.
Next, I updated the cordova-android to github master. (commit
02ee92510376b23476039e29e1ec5ffaf2102b83)
I checked readAstext again using this latest cordova-android.
As a result, the readAsText works for 1000bytes, 200000bytes and 500000bytes
text files.
I think https://github.com/apache/cordova-android/pull/433 fixes this issue at
least for android.
> Cordova Plugin File not reading large json files correctly - android
> --------------------------------------------------------------------
>
> Key: CB-14110
> URL: https://issues.apache.org/jira/browse/CB-14110
> Project: Apache Cordova
> Issue Type: Bug
> Components: cordova-plugin-file
> Affects Versions: 6.0.1
> Environment: cordova version: 7.1.0
> cordova-android: 7.1.0
> cordova-ios: 7.1.0
> Reporter: Joel Henry
> Priority: Critical
> Labels: android
>
> When reading a large json file (293kb), readAsText renders string
> incorrectly, adding duplicate text after the file's text ends and breaking
> json structure. JSON.parse the text fails due to this. It hangs and fails.
> {code:java}
> const root = `${this.window.cordova.file.applicationDirectory}www/assets/`;
> this.window.resolveLocalFileSystemURL(this.root + fileName,
> (fileEntry: FileEntry) => {
> fileEntry.file(file => {
> const reader = new (<any>this.window.cordova).FileReader();
> reader.onloadend = function () {
> console.log(JSON.parse(this.result));
> };
> reader.readAsText(file);
> });
> });
> {code}
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