I'm trying to access the sdcard from my emulator, but it doesn't show any file:
As you can see, it seems to be empty.
I tried to check if the sdcard was mounted and all, so I put code to show how many MB left are on the sdcard, you can see the debugging, saying that it have 0.24GB free.
Even though i tried to Push a file to the device, it does nothing at all.
What's happening? Do I have to ummount the sdcard from the device?
Use this way
go to mnt/sdcard this location show your sdcard
instead of sdcard
On an Android 4.2 environment, for the initial user account, external storage can be found at /mnt/shell/emulated/0/.
Related
When I download a pdf file from the Android app, I do not want the user to be able to find it on the phone. Is there such a hidden space on Android phones? I have tried putting a dot in the folder or trying other solutions from the internet but they can reach the windows computers when the phone is connected to the computer via cable. Is there anyone who can suggest a solution?
You should avoid having that file on the external storage completely.
Simply use getFilesDir() for that.
Use the device's internal storage as described in the android docs.
Files stored on the internal storage are only visible to your app and removed when your app is uninstalled.
Source: https://developer.android.com/training/basics/data-storage/files.html
The VS emulator does not seems to be showing the SD card in the storage menu or through code. any idea how to get it working. even if we go through the SD card menu on the emulator options and provide a folder it doesn't seems to be working.
I first had to 'Pull from SD Card' which seemed to create the required hierarchy under the folder I identified. Then I did a 'Push to SD Card'. Still didn't behave entirely as I expected since no external storage was listed under settings. I just was trying to copy files across and this allowed me to do that.
I have an app I made on my old phone. It creates a folder called LocationTracker. When Im stepping through the code it says the folder exists. But I cant seem to browse to it when I connect my phone to the computer. I just checked my file explorer on my phone and i can browse to the folder there as well. According to that it is under the sd card, but i just cant see it on my PC.
Im rooting around in my file explorer on my phone. There appears to be 2 sd card folders. One is called sdcard1, and that seems to be my actual sd card. The other is called sd card. I think its an emulated one. I use Environment.getExternalStorageDirectory(), i thought that returned the sd card if one was available. If that is the case why is it using the emulated folder instead of the actual sd card folder? How do I fix this?
From Android documentation:
In devices with multiple "external" storage directories, this directory represents the "primary" external storage that the user will interact with. Access to secondary storage is available through
The rest of the sentence is sadly missing. However the methods are Context.getExternalFilesDirs() and Context.getExternalMediaDirs().
I am working on a project that needs to store some .txt to android, and get it from the computer for other use. From what I read from the documentation, I know that there are two types of storage: 1 Internal, which is somewhere deep in the phone that is private to the app. 2 External, which includes the SD card and the Internal Storage of the phone. I want to store it to External->Internal, and I am using this line of code to do that:
public String WalkDir = android.os.Environment.getExternalStorageDirectory().getAbsolutePath() + "/Walks/";
When I logged WalkDir, LogCat says "/storage/emulated/0", I stopped the app, checked with the adb shell, and there is no folder "0" but "legacy". I unplugged the phone and plugged it back in, the "Walks" folder is now in the root directory, and I don't need adb shell to access it.
So my question is, can you help explain how this system works? Why did "0" disappear? What is "legacy"? Why is the file in Internal Storage when I unplug&plug it?
Thank you very much!
Those are what in Linux are called symlinks (like shortcuts in Windows) that various system apps in Android are using..
/storage, /sdcard are sym linked folders,that means when you open one of those, it redirects to the original(/data/media/0), as for the 0 is just a multi user feature implemented in android 4.2, but only enabled on tablet androids.
Why do this Sym-Link?: simple so it dosent break apps(not only file explorer type of app, but all apps).
Still dont get, why it would break?.Simple. android api have lots of ways to write/read files from folders, u can do manually,u can get the data path, u can get the sdcard path, etc,etc. so to not break that they just does these sym links, thats why in one app the storage contentents are listed on /sdcard but on others, is /storage, etc,etc. one example of an app that broke because of these changes to android is titanium backup, u need to change the internal storage on it, so it work.
2 mount points pointing to the same storage device and partition.
If you create something in one folder, it will show up in the other. Same applies for deleting stuff.
They do not take away more storage space, as it is only available once but shown twice.
You also don't need to worry about it in any way because file browsers normally set their default directory to one of these locations.
As far as i know, Google changed the mount points in Android 4.2 to /storage/emulated/0/ due to them switching to MTP and EXT4(?) for the sdcard. The other mount points are still there for compatibility.
I just want to view the files(especially the .png files) associated with one of the application in my mobile. The application is actually installed(moved) in the SD card.
The issue is ..I could not find the application in the SD card. I am using a file browser called 'File Manager' to browse through the SD card. Can someone help me on this.
It should be here:
/mnt/sdcard/Android/data/your_package_name/
Some hardware implements the path to the external storage different.
/mnt/sdcard/Android/data/your_package_name/
/mnt/sdcard-ext/Android/data/your_package_name/
You may be able to get a better view of what is on the device by using the ADB Shell. If you still have trouble at this point trying running grep or find from the shell.
UPDATE
Most of the time the files associates with your application are in the directory with your application. The application is installed in /data/data/your.package.name/. However you will need root access to get here if you are on a phone, I think the emulator lets you get here. As far as external storage... yea its a pain, to much fragmentation in the market. You have to programmatically check the location of the external storage.
On my device with Android 2.3.6 apps moved on the SD card are located into a directory named .android_secure as .asec files (see http://www.fileinfo.com/extension/asec).
They are not visible from the standard "Archive" browser which shows the hidden directory as empty.
The files are also encrypted so I guess no access to the images within is possible.