You can find all the downloaded files on Android phones and tablets in an app, called Files or My Files. The downloaded files will be listed there in chronological order. The Files or My Files app is located in the app drawer. Open the app and tap the Downloads option to view downloaded files on your phone or tablet.
Unlike Android devices that save the files in one place, on the iPad and iPhone, downloaded files are not saved or stored in a single location. They go to the corresponding apps on your iPhone or iPad. If you don't know the exact location of a file, you can use a free iOS data manager to transfer, download, and organize files on your iPhone or iPad. Daisy is the Senior editor of the writing team for EaseUS.
She has been working in EaseUS for over ten years, starting from a technical writer to a team leader of the content group. As a professional author for over 10 years, she writes a lot to help people overcome their tech troubles. Brithny is a technology enthusiast, aiming to make readers' tech life easy and enjoyable. She loves exploring new technologies and writing technical how-to tips. I found the scoping of variables tricky to follow in this example so I rewrote it into a single function.
Need a an easy to use wrapper for File API? Found that thanks to searching on Bower. Here's the example of writing a file with that API. Saying you are facing a problem is not the same as saying what your problem is. You can convert binary data to Base64 and store it in LocalStorage, but it will be quite large. I'd use the file system. Hello Raymond, your articles have been very useful. I have one issue though. When I call the writeLog method multiple times, it doesn't write all the lines.
It is not consistent which lines it writes. So for example: writeLog "1" ; writeLog "2" ; writeLog "3" ; The above code doesn't write all three lines. I think this is because of async nature of the API, can you suggest how can I achieve this? Thanks a lot. Confirmed - and it kinda makes sense too. Since the call is async, you have issues where N calls at once try to append to the same file.
The easy fix is to simply make writeLog async - ie, make it fire a callback when done or use a promise. That's not ideal, but it would solve the issue.
I'll do some thinking on this to see if I can come up with something nicer. Hi Raymond, thanks for the nice article. However, you might want to mention that, for those of us who do not have the cordova file plugin installed out of the box, doing.
Is there maybe a more recent version of this plugin? Note: Recompile with -Xlint:deprecation for details. Note: Some input files use unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. Yeah - I try to call out the plugins I'm using in a demo but I definitely forgot this time - thanks. To your question - you mean beyond what you get with a normal plugin install? I don't know - you would need to check the repo to see if there's something not released yet. If you're worried about those messages, I'd file a bug report.
Sir, dir. Check the link to the HTML5Rocks article and they discuss how to create a folder if it doesn't exist. I've got a mental model of how I'd do it - but I haven't actually written it yet.
You could still use it for debugging. Hello sir, i tried using your code as a test for cordova file creation but it didn't really work , and i still get : "Uncaught TypeError: Cannot read property 'dataDirectory' of undefined " on the line : "window.
Did you wait for deviceReady to fire? That's the only reason I can think for cordova. I explain this in the post. I use this shortcut, cordova. You can print out the full path if you want using a console statement. Hello Raymond, I was wondering if it's possible to use a plugin's functionality from another plugin. For example, if I'm developing a plugin that requires writing and reading to a file, can I utilize the functionality already implemented in cordova-plugin-file or do I need to implement it or include the code from the file plugin directly in my plugin?
I've searched online but I can't find a good reference for it. My gut says no, but I'm not sure. I'd consider posting this to StackOverflow as it doesn't necessarily pertain to this blog entry anyway ;.
Let me know when you do, I'd like to follow it. Thanks for you reply. I've already posted it but haven't gotten any reply. Not even a comment. Raymond Camden Exactly the case with me. It might be easier for you to use the FileTransfer. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.
Learn more. Downloading a file with Cordova Ask Question. Asked 8 years, 6 months ago. Active 1 year, 9 months ago. The OS may delete these files when the device runs low on storage, nevertheless, apps should not rely on the OS to delete files in here. Android , BlackBerry Do not rely on the OS to clear this directory; your app should always remove files as applicable.
Office files. Although technically an implementation detail, it can be very useful to know how the cordova. Your app should be able to recreate any content that might be deleted. Files are not guaranteed to persist across updates. Your app should remove files from this directory when it is applicable, as the OS does not guarantee when or even if these files are removed.
You should clear this directory as appropriate for your application. Clear the contents of this directory as appropriate for your application. Should a user purge the cache manually, the contents of this directory are removed. Should the user purge the cache manually, the contents of the directory are removed. Note : If external storage can't be mounted, the cordova.
Note : This is the layout for non sandboxed applications. There are multiple valid locations to store persistent files on an Android device. See this page for an extensive discussion of the various possibilities. Previous versions of the plugin would choose the location of the temporary and persistent files on startup, based on whether the device claimed that the SD Card or equivalent storage partition was mounted. If the SD Card was mounted, or if a large internal storage partition was available such as on Nexus devices, then the persistent files would be stored in the root of that space.
This meant that all Cordova apps could see all of the files available on the card. It is now possible to choose whether to store files in the internal file storage location, or using the previous logic, with a preference in your application's config. To do this, add one of these two lines to config. Without this line, the File plugin will use Internal as the default. You should register callbacks in your application's bindEvents function that respond to the lifecycle events by saving state.
What information you save and how you save it is left to your discretion, but you should be sure to save enough information so that you can restore the user to exactly where they left off when they return to your application.
There is one additional factor in the example above that only applies in the second-discussed situation i. Not only was the state of the application lost when the user finished taking a photo, but so was the photo that the user took.
Normally, that photo would be delivered to your application through the callback that was registered with the camera plugin. However, when the Webview was destroyed that callback was lost forever. Luckily, cordova-android 5. When the OS destroys the Cordova activity that was pushed into the background by a plugin, any pending callbacks are lost as well.
This means that if you passed a callback to the plugin that launched the new activity e. However, starting in cordova-android 5. The possible values for pluginStatus in the pendingResult field include the following:.
Please note that it is up to the plugin to decide what is contained in the result field and the meaning of the pluginStatus that is returned. Reference the API of the plugin you are using to see what you should expect those fields to contain and how to use their values. Below is a brief example application that uses the resume and pause events to manage state.
It uses the Apache camera plugin as an example of how to retrieve the results of a plugin call from the resume event payload. The portion of the code dealing with the resume 's event. On an Android 9 device, clear text communication is now disabled by default. The key reason for avoiding cleartext traffic is the lack of confidentiality, authenticity, and protections against tampering; a network attacker can eavesdrop on transmitted data and also modify it without being detected.
You can learn more about the android:usesCleartextTraffic or any other android application elements setting in the documentation for Android developers. To allow clear text communication again, set the android:usesCleartextTraffic on your application tag to true in config.
You can learn more about the Android manifest information in the documentation for Android developers. Android provides a developer setting for testing Activity destruction on low memory. Enable the "Don't keep activities" setting in the Developer Options menu on your device or emulator to simulate low memory scenarios.
You should always do some amount of testing with this setting enabled to make sure that your application is properly maintaining state.
Android Platform Guide This guide shows how to set up your SDK environment to deploy Cordova apps for Android devices, and how to optionally use Android-centered command-line tools in your development workflow.
Setting environment variables Cordova's CLI tools require some environment variables to be set in order to function correctly. This can be important if your project uses large native libraries, which can drastically increase the size of the generated APK. If not set, then a single APK will be generated which can be used on all devices.
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