How do I view Android application specific cache

Question

Is there any way to dynamically view the application specific cache in Android  I m saving images to the cache   data data my app package cache  and I m 99  sure they re saving there  but not sure how long they re staying around   When I look in the cache using the DDMS File Explorer within Eclipse  it s always empty  I ve also tried examining the appropriate cache dir in ADB and again it s always empty   Any suggestions

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Here is the code  replace package name by your specific package name   Intent i   new Intent android provider Settings ACTION APPLICATION DETAILS SETTINGS   i addCategory Intent CATEGORY DEFAULT   i setData Uri parse  package package name     startActivity i

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You can check the application-specific data in your emulator as follows    Run adb shell in cmd Go to   data data  and navigate into your application   There you can find the cache data and databases specific to your application

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Unless ADB is running as root  as it would on an emulator  you cannot generally view anything under  data unless an application which owns it has made it world readable   Further  you cannot browse the directory structure - you can only list files once you get to a directory where you have access  by explicitly entering its path   Broadly speaking you have five options    Do the investigation within the owning app Mark the files in question as public  and use something  adb shell or adb pull  where you can enter a full path name  instead of trying to browse the tree Have the owning app copy the entire directory to the SD card Use an emulator or rooted device where adb  and thus the ddms browser s access  can run as root  or use a root file explorer or a rooted device  use adb and the run-as tool with a debuggable apk to get a command line shell running as the app s user id   For those familiar with the unix command line  this can be the most effective  though the toolbox sh on android is limited  and uses its tiny vocabulary of error messages in misleading ways

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On Android Studio you can use Device File Explorer to view  data data my app package cache   Click View  gt  Tool Windows  gt  Device File Explorer or click the Device File Explorer button in the tool window bar to open the Device File Explorer   Documentation

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You may use this command for listing the files for your own debuggable apk   adb shell run-as com corp appName ls  data data com corp appName cache   And this script for pulling from cache      bin sh adb shell  run-as com corp appName cat   data data com corp appNamepp  1   gt    sdcard  1   adb pull   sdcard  1  adb shell  rm   sdcard  1     Then you can pull a file from cache like this     pull sh cache someCachedData txt   Root is not required

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Question  Where is application-specific cache located on Android   Answer   data data

User · Answer

Cached files are indeed stored in  data data my app package cache  Make sure to store the files using the following method   String cacheDir   context getCacheDir    File imageFile   new File cacheDir   image1 jpg    FileOutputStream out   new FileOutputStream imageFile   out write imagebuffer  0  imagebufferlength     where imagebuffer   contains image data in byte format and imagebufferlength is the length of the content to be written to the FileOutputStream   Now  you may look at DDMS File Explorer or do an  adb shell  and cd to  data data my app package cache and do an  ls   You will find the image files you have stored through code in this directory   Moreover  from Android documentation   If you d like to cache some data  rather than store it persistently  you should use getCacheDir   to open a File that represents the internal directory where your application should save temporary cache files   When the device is low on internal storage space  Android may delete these cache files to recover space  However  you should not rely on the system to clean up these files for you  You should always maintain the cache files yourself and stay within a reasonable limit of space consumed  such as 1MB  When the user uninstalls your application  these files are removed

[android] How do I view Android application specific cache?

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