android fileprovider external storage

); Intentfilter.addaction (INTENT.ACTION_MEDIA_NOFS); Intentfilter.addaction (Intent.action_media_button); Intentfilter.addaction (Intent.action_media_scanner_scan_file); Intentfilter.adddatascheme ("file"); Registerreceiver (Broadcastrec, intentfilter);} Private final Broadcastreceiver Broadcastrec = new Broadcastreceiver () {@Override public void onreceive (Context Context, Intent Intent) {String action = intent.getaction (); LOG.D ("mediaaction", action); if (Action.equals

Recently made a small app about the album, need to read the storage device of the Android phone, first need to obtain the system read and write permission, in the online a good find, for the veteran, may be easy, for the rookie, it is a little difficult, in order to learn, especially write some of their own experience to write down, for reference. If there is any improper, please correct me.Let's start with

inti = 0; theString str = ""; the while((i = Fis.read (b)) >0) - { thestr + =NewString (b,0, i); the } the fis.close ();94Toast.maketext (mainactivity. This, "File content =" +str, toast.length_short). Show (); the } the Catch(Exception e) the {98Toast.maketext (mainactivity. This, "failed to read external file", Toast.length_short). Show (); About

files like your phone's own file system browser.Whether it's an internal SD card or an external SD card, it's a phone's external storage, and the phone's internal storage and external storage share the same device.Internal

SOURCE Blog: http://www.devahead.com/blog/2012/01/saving-the-android-webview-cache-on-the-sd-card/The main idea is to indirectly change the results obtained by WebView acquiring the cache directory by the override Getcachedir () method at the activity level;Getcachedir () and Getfilesdir () are often used when saving the cache (file), which returns the default result as/data/data/package name/cache (files).However, this can be very internal

Android4.4 access external storage and android4.4 access storage In the Android 4.4 system, an external memory card (SD card) is called a secondary external storage device, and applica

I. Features1. Store the file in the external storage space (SD card) of the phone2. Storage of any type of file3. operation file using IO input/output stream4. File path1-SD Card root directory/android/data/package name/files/[file type], after the application uninstall, the data is deleted;2-SD root directory/After th

= "Match_parent"Android:layout_height= "Wrap_content"Android:text= "Read internal file"Android:onclick= "Bt_4"/> ButtonAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"Android:text= "Save asset file to internal storage"Android:onclick= "Bt_5"/> ImageViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:id= "@+id/iv1"android:src= "@drawable/nnn"/> ButtonAndroid:layout_width= "Match_parent"

, "Save Failed", Toast.lengt H_short). Show (); }} else {Toast.maketext (shoujicunchuactivity.this, "SD card not mounted", toast.length_short). Show (); } }}View CodeXmlXML version= "1.0" encoding= "Utf-8"?>LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Xmlns:tools= "Http://schemas.android.com/tools"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"Android:paddingbottom= "@dimen/acti

Source: Http://source.android.com/tech/storage/External Storage technical information Android supports devices with external storage, which is defined to be acase-insensitive and permissionless filesystem.

Android4.4 access to external storage In the Android 4.4 system, an external storage card (SD card) is called a level two external storage device (secondary

Android data storage file and android Data StorageIn the previous article, we used SharedPreferences to save data in Android. SharedPreferences mainly saves the setting information of some applications or a small amount of user information when saving data, the String class information stored in the form of key-value h

In the Android 4.4 system, an external storage card (SD card) is called a level two external storage device (secondary storage), and the application is unable to write data to an external