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Android Quick APIs Reference pp 171–198Cite as

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Storing Data

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Abstract

The Android framework provides several options to store application data. There is no single best storage option, as the options depend on the application and the use cases. This chapter briefly goes through each of the storage options offered by the Android framework, such as simple files, shared preferences, and the relational databases. Later in this chapter, we will explore Android Backup Services as a mechanism to back up and restore application data to the cloud in order make it persist between device upgrades and device resets.

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Notes

  1. 1.

    http://developer.android.com/reference/android/content/Context.html# openFileOutput(java.lang.String,int) .

  2. 2.

    http://developer.android.com/reference/android/content/Context.html# openFileInput(java.lang.String) .

  3. 3.

    http://developer.android.com/reference/android/os/Environment.html#getExternalStorageState() .

  4. 4.

    http://developer.android.com/reference/android/os/Environment.html#getExternalStorageDirectory() .

  5. 5.

    http://developer.android.com/reference/android/content/Context.html# getExternalFilesDir(java.lang.String) .

  6. 6.

    http://developer.android.com/reference/android/content/Context.html# getExternalFilesDir(java.lang.String) .

  7. 7.

    http://developer.android.com/reference/android/os/Environment.html# getExternalStoragePublicDirectory(java.lang.String) .

  8. 8.

    http://developer.android.com/reference/android/content/Context.html# getCacheDir() .

  9. 9.

    http://developer.android.com/reference/android/content/Context.html# getExternalCacheDir() .

  10. 10.

    http://developer.android.com/reference/android/util/JsonWriter.html .

  11. 11.

    http://developer.android.com/reference/android/util/JsonReader.html .

  12. 12.

    http://developer.android.com/reference/android/content/Shared Preferences.html .

  13. 13.

    http://developer.android.com/reference/android/app/Activity.html#get Preferences(int) .

  14. 14.

    http://developer.android.com/reference/android/content/ContextWrapper.html#getSharedPreferences(java.lang.String, int) .

  15. 15.

    http://developer.android.com/reference/android/content/Shared Preferences.Editor.html .

  16. 16.

    http://developer.android.com/reference/android/content/Shared Preferences.html#edit() .

  17. 17.

    http://developer.android.com/reference/android/content/Shared Preferences.Editor.html#commit() .

  18. 18.

    http://developer.android.com/reference/android/content/Shared Preferences.html#contains(java.lang.String) .

  19. 19.

    http://developer.android.com/reference/android/content/Shared Preferences.html#registerOnSharedPreferenceChangeListener(android.content.SharedPreferences.OnSharedPreferenceChangeListener) .

  20. 20.

    http://developer.android.com/reference/android/preference/Preference Fragment.html .

  21. 21.

    http://developer.android.com/reference/android/preference/Preference Screen.html .

  22. 22.

    http://developer.android.com/reference/android/preference/CheckBox Preference.html .

  23. 23.

    http://developer.android.com/reference/android/preference/List Preference.html .

  24. 24.

    http://developer.android.com/reference/android/preference/EditText Preference.html .

  25. 25.

    http://developer.android.com/reference/android/database/sqlite/SQLite OpenHelper.html .

  26. 26.

    http://developer.android.com/reference/android/database/sqlite/SQLite OpenHelper.html#onCreate(android.database.sqlite.SQLiteDatabase) .

  27. 27.

    http://developer.android.com/reference/android/database/sqlite/SQLite OpenHelper.html#onUpgrade(android.database.sqlite.SQLiteDatabase, int, int) .

  28. 28.

    www.sqlite.org/lang_createtable.html .

  29. 29.

    www.sqlite.org/lang_altertable.html .

  30. 30.

    http://developer.android.com/reference/android/database/sqlite/SQLite OpenHelper.html#getWritableDatabase() .

  31. 31.

    www.sqlite.org/lang_insert.html .

  32. 32.

    http://developer.android.com/reference/android/database/sqlite/SQLite Database.html#insert(java.lang.String, java.lang.String, android. content.ContentValues) .

  33. 33.

    www.sqlite.org/lang_update.html .

  34. 34.

    http://developer.android.com/reference/android/database/sqlite/SQLite Database.html#update(java.lang.String, android.content.ContentValues, java.lang.String, java.lang.String[]) .

  35. 35.

    www.sqlite.org/lang_select.html#whereclause .

  36. 36.

    http://developer.android.com/reference/android/database/sqlite/SQLite OpenHelper.html#getReadableDatabase() .

  37. 37.

    http://developer.android.com/reference/android/database/sqlite/SQLite Database.html#query(java.lang.String, java.lang.String[], java.lang. String, java.lang.String[], java.lang.String, java.lang.String, java.lang.String, java.lang.String) .

  38. 38.

    http://developer.android.com/reference/android/database/Cursor.html .

  39. 39.

    www.sqlite.org/lang_select.html#resultset .

  40. 40.

    www.sqlite.org/lang_select.html#orderby .

  41. 41.

    www.sqlite.org/lang_select.html#limitoffset .

  42. 42.

    http://developer.android.com/reference/android/database/sqlite/SQLite Database.html#delete(java.lang.String, java.lang.String, java.lang. String[]) .

  43. 43.

    http://developer.android.com/reference/android/content/Context.html# deleteDatabase(java.lang.String) .

  44. 44.

    http://developer.android.com/guide/topics/data/backup.html .

  45. 45.

    http://developer.android.com/reference/android/app/backup/BackupAgent.html .

  46. 46.

    http://developer.android.com/reference/android/app/backup/BackupAgent Helper.html .

  47. 47.

    http://developer.android.com/reference/android/app/backup/FileBackup Helper.html .

  48. 48.

    http://developer.android.com/reference/android/app/backup/Shared PreferencesBackupHelper.html .

  49. 49.

    http://developer.android.com/guide/topics/manifest/application-element.html#agent .

  50. 50.

    http://developer.android.com/reference/android/app/backup/Backup Manager.html#dataChanged() .

  51. 51.

    http://developer.android.com/tools/help/bmgr.html .

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  1. CA, US

    Onur Cinar

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  1. Onur Cinar
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© 2015 Onur Cinar

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Cinar, O. (2015). Storing Data. In: Android Quick APIs Reference. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-0523-5_7

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