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https://issues.apache.org/jira/browse/CB-12894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16052160#comment-16052160
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Kyle Slack commented on CB-12894:
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The only reason we went with a third party plugin to do this is because we did
not find a plugin from Apache directly for opening files. Is there an example
or documentation you can point me to to use native Apache Cordova plugins to do
this instead? Downloads are working fine, just the file opening once that
download is complete. I will contact the developer of the plugin to discuss
further thank you.
> Opening a Local File - breaking on cordova.js
> ---------------------------------------------
>
> Key: CB-12894
> URL: https://issues.apache.org/jira/browse/CB-12894
> Project: Apache Cordova
> Issue Type: Bug
> Components: cordova-android
> Environment: DevExtreme SPA Application using Cordova
> Reporter: Kyle Slack
>
> We have an application that has a self updating feature, we do not host in
> the Google Play Store, however, we host it for our users. We have had success
> with previous versions of our application, but recently on newer devices
> running Android 6.0 or higher our users are running into an error when trying
> to open the downloaded .apk file that should provide our users with an
> updated version of the app prompted for installation. On Android 6.0 or lower
> everything is working perfectly fine with the following code. Lastly, we were
> able to debug this to the point where we can see the file is actually
> downloading fine, and only the call to open the file throws an exception. We
> were able to debug down into the cordova.js file and found that there was an
> exception occurring when the fileOpener2 plugin performs it's open()
> callback, but seems like this is related to Cordova and not anything to do
> with the fileOpener2, we have already discussed this with the developer.
> Test Device Info: Motorola Turbo 2 / Android 7.0
> Exception Msg: 230 F09 FileOpener21362683899 sAttempt to invoke virtual
> method 'android.content.res.XmlResourceParser
> //android.content.pm.PackageItemInfo.loadXmlMetaData(android.content.pm.PackageManager,
> java.lang.String)' on a null object reference
> Code:
> {code}
> // we need to access LocalFileSystem
> window.requestFileSystem(LocalFileSystem.PERSISTENT, 5 * 1024 * 1024,
> function (fs) {
> //Show user that download is occurring
> $("#toast").dxToast({
> message: "Downloading please wait..",
> type: "warning",
> visible: true,
> displayTime: 20000
> });
> // we will save file in .. Download/OURAPPNAME.apk
> var filePath = cordova.file.externalRootDirectory + '/Download/'
> + "OURAPPNAME.apk";
> var fileTransfer = new FileTransfer();
> var uri = encodeURI(appDownloadURL);
> fileTransfer.download(uri, filePath, function (entry) {
> //Show user that download is occurring/show user install is
> about to happen
> $("#toast").dxToast({
> message: "Download complete! Launching...",
> type: "success",
> visible: true,
> displayTime: 2000
> });
> ////Use pwlin's fileOpener2 plugin to let the system open the
> .apk
> cordova.plugins.fileOpener2.open(
> entry.toURL(),
> 'application/vnd.android.package-archive',
> {
> error: function (e) {
> window.open(appDownloadURL, "_system");
> },
> success: function () { console.log('file opened
> successfully'); }
> }
> );
> },
> function (error) {
> //Show user that download had an error
> $("#toast").dxToast({
> message: error.message,
> type: "error",
> displayTime: 5000
> });
> },
> false);
> })
> {code}
> Problem File: cordova.js
> THIS IS ALL NOT OUR CODE, BUT 'CORDOVA' CODE
> {code}
> function androidExec(success, fail, service, action, args) {
> // argsJson -
> "["file:///storage/emulated/0/download/OURAPPNAME.apk","application/vnd.android.package-archive"]"
> //callbackId - FileOpener21362683899
> //action - open
> //service FileOpener2
> //bridgesecret - 1334209170
> var msgs = nativeApiProvider.get().exec(bridgeSecret, service, action,
> callbackId, argsJson);
> // If argsJson was received by Java as null, try again with the PROMPT
> bridge mode.
> // This happens in rare circumstances, such as when certain Unicode
> characters are passed over the bridge on a Galaxy S2. See CB-2666.
> if (jsToNativeBridgeMode == jsToNativeModes.JS_OBJECT && msgs === "@Null
> arguments.") {
> androidExec.setJsToNativeBridgeMode(jsToNativeModes.PROMPT);
> androidExec(success, fail, service, action, args);
> androidExec.setJsToNativeBridgeMode(jsToNativeModes.JS_OBJECT);
> } else if (msgs) {
> messagesFromNative.push(msgs);
> // Always process async to avoid exceptions messing up stack.
> nextTick(processMessages);
> }
> // msgs = "230 F09 FileOpener21362683899 sAttempt to invoke virtual method
> 'android.content.res.XmlResourceParser
> //android.content.pm.PackageItemInfo.loadXmlMetaData(android.content.pm.PackageManager,
> java.lang.String)' on a null object reference"
> }
> {code}
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