For those looking for a general strategy for reading and writing a string to file:<\/p>\n\n\n\n
credit to : https:\/\/stackoverflow.com\/users\/559634\/sharkalley<\/p>\n\n\n\n
First, get a file object<\/strong><\/p>\n\n\n\n You’ll need the storage path. For the internal storage, use:<\/p>\n\n\n\n For the external storage (SD card), use:<\/p>\n\n\n\n Then create your file object:<\/p>\n\n\n\n Write a string to the file<\/strong><\/p>\n\n\n\n Or with Google Guava<\/p>\n\n\n\n String contents = Files.toString(file, StandardCharsets.UTF_8);<\/p><\/blockquote>\n\n\n\n Read the file to a string<\/strong><\/p>\n\n\n\n Or if you are using Google Guava<\/p>\n\n\n\n For completeness I’ll mention<\/p>\n\n\n\n which requires no libraries, but benchmarks 50% – 400% slower than the other options (in various tests on my Nexus 5).<\/p>\n\n\n\n Notes<\/strong><\/p>\n\n\n\n For each of these strategies, you’ll be asked to catch an IOException.<\/p>\n\n\n\n The default character encoding on Android is UTF-8.<\/p>\n\n\n\n If you are using external storage, you’ll need to add to your manifest either:<\/p>\n\n\n\n or<\/p>\n\n\n\n Write permission implies read permission, so you don’t need both.<\/p>\n","protected":false},"excerpt":{"rendered":" For those looking for a general strategy for reading and writing a string to file: credit to : https:\/\/stackoverflow.com\/users\/559634\/sharkalley First, get a file object You’ll need the storage path. For the internal storage, use: For the external storage (SD card), use: Then create your file object: Write a string to the file Or with Google […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-178","post","type-post","status-publish","format-standard","hentry","category-general"],"_links":{"self":[{"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/posts\/178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/comments?post=178"}],"version-history":[{"count":1,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/posts\/178\/revisions"}],"predecessor-version":[{"id":179,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/posts\/178\/revisions\/179"}],"wp:attachment":[{"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/media?parent=178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/categories?post=178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/tags?post=178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}File path = context.getFilesDir();<\/code><\/pre>\n\n\n\nFile path = context.getExternalFilesDir(null);<\/code><\/pre>\n\n\n\nFile file = new File(path, \"my-file-name.txt\");<\/code><\/pre>\n\n\n\nFileOutputStream stream = new FileOutputStream(file);\ntry {\n stream.write(\"text-to-write\".getBytes());\n} finally {\n stream.close();\n}<\/code><\/pre>\n\n\n\nint length = (int) file.length();\n\nbyte[] bytes = new byte[length];\n\nFileInputStream in = new FileInputStream(file);\ntry {\n in.read(bytes);\n} finally {\n in.close();\n}\n\nString contents = new String(bytes); <\/code><\/pre>\n\n\n\nString contents = Files.toString(file,\"UTF-8\");<\/code><\/pre>\n\n\n\nString contents = new Scanner(file).useDelimiter(\"\\\\A\").next();<\/code><\/pre>\n\n\n\n<uses-permission android:name=\"android.permission.READ_EXTERNAL_STORAGE\"\/><\/code><\/pre>\n\n\n\n<uses-permission android:name=\"android.permission.WRITE_EXTERNAL_STORAGE\"\/><\/code><\/pre>\n\n\n\n