Change android 4.4 download permissions

Set the android:grantUriPermissions attribute to true, to allow you to grant temporary access to files. In the meta-data you have to define what files are available through fileprovider for other apps to use. This does not mean that other apps have access to those files. Other apps will have access only when your app generates a content uri using FileProvider, shares it with the other apps via intent and grants uri permissions.

You can not share a file by its file name or using wildcards. You can find more types of tags to specify files on Android docs - Specifying available files. So, yeah. You have shared your file securely with other app and the other app has temporary access to your file via content uri. You should definitely read more about FileProvider and how cool it is on Android docs - FileProvider. FileProvider is a really great concept and it works so well. You can request longer access to files using it and so much more.

I was adding support for offline export and import of data in my app - Flutter: Instant Movie Ratings written in Kotlin, not Flutter , I added permission to manifest, did the whole shebang of asking permissions to write files.

The app request permission just for internet access. Learn the Redux architecture and implement the clean architecture it in your Android codebase. This series of posts explores the depth of Redux and guides you through implementing the architecture in Kotlin for your android app. Taskito - Calendar based to-do list. Redux architecture and Android Learn the Redux architecture and implement the clean architecture it in your Android codebase.

Beware, though, that single and narrow column layouts and default zoom levels are not supported at all on Android 4. To help you work through any issues you may encounter when migrating your app to WebView in Android 4. This new feature in WebView allows you to inspect and analyze your web content, scripts, and network activity while running in a WebView.

For more information, see Remote Debugging on Android. If you serve content to your WebView based on the user agent, you should be aware of the user agent string has changed slightly and now includes the Chrome version:. If you need to retrieve the user agent but don't need to store it for your app or do not want to instantiate WebView , you should use the static method, getDefaultUserAgent.

However, if you intend to override the user agent string in your WebView , you may instead want to use getUserAgentString. If you call methods on WebView from any thread other than your app's UI thread, it can cause unexpected results. For example, if your app uses multiple threads, you can use the runOnUiThread method to ensure your code executes on the UI thread:.

Also be sure that you never block the UI thread. A situation in which some apps make this mistake is while waiting for a JavaScript callback. For example, do not use code like this:. You can instead use a new method, evaluateJavascript , to run JavaScript asynchronously. The new WebView applies additional restrictions when requesting resources and resolving links that use a custom URL scheme. If you are using a custom URL scheme or a base URL and notice that your app is receiving fewer calls to these callbacks or failing to load resources on Android 4.

The result of the user clicking such a link can vary: If you loaded the page by calling loadData or loadDataWithBaseURL with an invalid or null base URL, then you will not receive the shouldOverrideUrlLoading callback for this type of link on the page. Instead of using a simple string in a link as shown above, you can use a custom scheme such as the following:.

For example:. The valid host name should conform to RFC and it's important to include the trailing slash at the end, otherwise, any requests from the loaded page may be dropped. Previously, WebView supported a viewport property called target-densitydpi to help web pages specify their intended screen density.

Previously, if you set your viewport width to a value less than or equal to "" it would be set to "device-width", and if you set the viewport height to a value less than or equal to the WebView height, it would be set to "device-height".

However, when running in the new WebView , the width or height value is adhered and the WebView zooms in to fill the screen width. Previously, if you included multiple viewport tags in a web page, WebView would merge the properties from all the tags.

In the new WebView , only the last viewport is used and all others are ignored. The methods getDefaultZoom and setDefaultZoom for getting and setting the initial zoom level on a page have are no longer supported and you should instead define the appropriate viewport in the web page. Chrome and other browser have behaved this way for a while, but now WebView will also override a CSS setting for background-size if you also specify the background style.

For example, the size here will be reset to a default value:. Previously, size parameters such as window. It's generally bad practice to try and calculate the physical size in pixels for sizing elements or other calculations.

However, if you've disabled zooming and the initial-scale is set to 1. Instead, you can also create a JavaScript binding to query the pixel size from the WebView itself. For more information, see quirksmode. LayoutAlgorithm is not be supported in the new WebView. If you have control of the HTML and CSS on the page, you may find that altering the design of your content may be the most reliable approach.

If your web page is directly handling touch events in a WebView , be sure you are also handling the touchcancel event. There are a few scenarios where touchcancel will be called, which can cause problems if not received:. Content and code samples on this page are subject to the licenses described in the Content License. App Basics. Build your first app.

App resources. Resource types. App manifest file. Device compatibility. Multiple APK support. Tablets, large screens, and foldables.

Build responsive UIs. Build for foldables. Getting started. Handling data. User input. Watch Face Studio. Health services. Creating watch faces. Android TV. Build TV Apps. Build TV playback apps. Help users find content on TV. Recommend TV content. Watch Next. Build TV games. Build TV input services. TV Accessibility. Android for Cars. Build media apps for cars.

Build navigation, parking, and charging apps for cars. Android Things. Supported hardware. Advanced setup. Build apps. Create a Things app. Follow the steps described below to manage Read, Write and Execute permissions of a file on Android devices. Please note that if you assign the wrong set of file permissions while copying an app or file on your rooted Android device, your phone might stick on a bootloop.

To fix this error, do as follows:. If you are new to Android and are gradually learning things, you might want a detailed guide on editing file permission on Android devices. Please be warned that playing with the permission rules of system files unnecessarily and without understanding, might produce bizarre results.

So here are the steps to do it:. So this was our simple and detailed guide about fixing permission on Android file system using a root file manager. Cheers, and keep visiting! How can I fix this Permission , My device is Rooted. What I had did is I edited build. If anybody know the reason , Please help. Pretty good article. There are a couple of things to note though. One being occasionally you will have to change a files permission before it will allow you to copy and paste it.

Other times a message will appear stating that it will not keep the changes. Can someone please advise how to override this? Finally, there are a few files that when the permissions tab or the properties tab is inspected, there is no option to change the permissions. Can someone please help me with this as well? Thank you all in advance, and again thank you to Rakesh for the article. If the permissions you set do not stick, you should install BusyBox app on your device and then try again.

Thanks for the reply. I already have busybox installed and working. Just for kicks though, I did try uninstalling busybox, and then reinstalled.

This did no good either. There are still some files that refuse to keep the permission settings I assign to them. Puzzling to say the least. As such, again I say thank you to whomever may answer. I used Sunshine, as at the time it was the only software, I could find, that would do the job.

Of course that was all on stock ROM. Naturally I lost root when I flashed over. I need root too often not to have easy access to it. I understand you have a life and more important things to do than fiddle with my minor issues. Just the same, should you decide to continue helping, it will be appreciated. Perhaps I can buy you a tea or beer?? Also try this: Format the card inside the phone. The phone will format it to its specifications.