Android文件操作小结

/data/data/<package name>/shared_prefs 文件

SharedPreferences类

/data/data/<package name>/files 文件

Context.openFileInput(String name),Context.openFileOutput(String name)

/data/data/<package name>/cache 目录

getCacheDir()

/data/data/<package name>/files 目录

getFilesDir()

/sdcard 文件
if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
{
        File sdCardDir = Environment.getExternalStorageDirectory();
        File saveFile = new File(sdCardDir,"lx008.txt");
        FileOutputStream outSream = new FileOutputStream(saveFile);
        outStream.write("lxt008".getBytes());
        outStream.close();

}    

SQLite 数据库

SQLiteDatabase 或SQLiteOpenHelper

ContentProvider

URI