fileobserver

问题 I want to run a Backgroundservice (FileObserver) that will look for any filechanges in the system (CREATE, DELETE, MOVE, ...). When I start my application it works a few seconds and logs everything fine. For example at taking a picture by the camera it logs that. After a few seconds the service is still listed in Settings => Developer Options => Running Services but does not work and log anything anymore. Android Version: 7.0 Device: Samsung Galaxy S7 Edge I copied the code from Niza Siwale's

问题 I have FileObserver in my application, now it runs on the background and if new file registered - instantiate uploading of it to some server in foreground service. In Android O we should use FirebaseJob Dispatcher to do some job in background, but how could we apply it for FileObserver ? Is there any way to analyze data in background? Or maybe it's fail to use FileObserver since now? 回答1: but how could we apply it for FileObserver? You can't. Is there any way to analyze data in background?

问题 I have issue with both FIleObserver and ContentObserver not working in Android Marshmallow. I am using this thing for detecting changes that happening inside a folder. I set run time permissions for marshmallow. But after that also it shows no events. It works perfectly in other versions. Please help me to solve this problem. First I tried Content Resolver inside Service for detect folder changes in background. public class TestService extends Service { @Override public void onCreate() {

问题 I've registered a FileObserver for a directory. this.observer = new DirectoryObserver(requested.getAbsolutePath(), FileObserver.CREATE | FileObserver.DELETE | FileObserver.DELETE_SELF); this.observer.startWatching(); Tested on KitKat emulator. adb shell: root@generic:/sdcard # echo "test" >> test.txt //notified CREATE root@generic:/sdcard # rm test.txt //notified DELETE root@generic:/sdcard # mkdir test //no events received root@generic:/sdcard # rmdir test //no events received The

问题 I have an app that observes a public directory on external storage with FileObserver . It works fine on Lollipop devices. I want to add support for Marshmallow , so I set up a Nexus 9 tablet with it. On the Marshmallow device, it fails, on Lollipop device it's OK. On Marshmallow device, the FileObserver does not react to file system events that are caused by other processes. E.g. taking a screenshot, creating files via adb shell. It works fine if the files are created by my app. On

问题 I have an app that observes a public directory on external storage with FileObserver . It works fine on Lollipop devices. I want to add support for Marshmallow , so I set up a Nexus 9 tablet with it. On the Marshmallow device, it fails, on Lollipop device it's OK. On Marshmallow device, the FileObserver does not react to file system events that are caused by other processes. E.g. taking a screenshot, creating files via adb shell. It works fine if the files are created by my app. On

问题 I need to listen to new images that comes from any source like downloading images, capture new images, other apps download images..etc Is there any listener that will trigger event whenever new photos is added to gallery? I have been searching for two days. I could not get anything solid. I read about FileObserver , will that help? 回答1: new photos arrives to gallery means it has been added to the MediaStore . First of all, FileOberver is a memory-killer approach. Consider a high volume of

问题 String path = Environment.getExternalStorageDirectory() + File.separator + Environment.DIRECTORY_PICTURES+ File.separator + "Screenshots"; FileObserver fileObserver = new FileObserver(path, FileObserver.CREATE) { @Override public void onEvent(int event, String path) { Intent mIntent = new Intent(MainActivity.this,MainActivity.class); mIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); getApplicationContext().startActivity(mIntent); } }; fileObserver.startWatching(); 来源： https://stackoverflow.com

问题 I am trying to detect screenshot on an Android app. I am using contentObserver to detect the change in the media directory, not using FileObserver because of known issue with it on Android M. Here is the code snippet: handlerThread = new HandlerThread("content_observer"); handlerThread.start(); final Handler handler = new Handler(handlerThread.getLooper()) { @Override public void handleMessage(Message msg) { super.handleMessage(msg); } }; getContentResolver().registerContentObserver(

问题 I'm implementing a file observer in the main activity of a home replacement app. Does it drain battery? Thanks 回答1: FileObserver should not drain battery. FileObserver listens for iNotify events, which are implemented as core functionality via the Linux kernel. Just initialize your FileObserver with the events you want to listen to and implement the onEvent callback: it should be okay. 来源： https://stackoverflow.com/questions/20223155/android-fileobserver-battery-drain