DevMemo

imageView.setImageResource(R.drawable. ic_launcher );

Build > Edit Flavors... // write vesionName in AndroidManifest.xml directly, not update BuildConfig sometimes.

//Test : obj( ArrayList<Map>) public static void saveObj (Context context, Object obj){ SharedPreferences. Editor editor = context. getSharedPreferences (STORAGE_KEY, 0 ). edit (); Gson gson = new Gson(); String json = gson. toJson (obj); editor. putString (OBJ_KEY, json); editor. commit (); } public static Object loadObj (Context context){ SharedPreferences prefs = context. getSharedPreferences (STORAGE_KEY, 0 ); String json = prefs. getString (OBJ_KEY, null ); Gson gson = new Gson(); Object obj = gson. fromJson (json, Object. class ); return obj; }

** required : cellular model chip TelephonyManager tManager = (TelephonyManager)getSystemService(Context. TELEPHONY_SERVICE ); String uuid = tManager. getDeviceId (); ** required : WiFi on WifiManager manager = (WifiManager) getSystemService(Context. WIFI_SERVICE ); WifiInfo info = manager. getConnectionInfo (); String address = info. getMacAddress (); ** required :  Android 4.0 (API 14) String uuid = Build. SERIAL ;

http://stackoverflow.com/questions/7145606/how-android-sharedpreferences-save-store-object

** styles.xml   add < item name= "windowNoTitle" >true</ item > < resources > < style name= "AppTheme" parent= "Theme.AppCompat.Light.DarkActionBar" > 　　　　... < item name= "windowNoTitle" >true</ item > //add this line </ style > </ resources > < item name= "windowNoTitle" >true</ item > -> no title bar only. < item name= "windowFullscreen" >true</ item > -> no status bar.

/Removable/MicroSD/

bytes[] buffer = ... RandomAccessFile raf = new RandomAccessFile( _targetFile , "rw" ); raf.seek( 0 ); raf.write(buffer); raf.close();

<application ...> </application> < uses-permission android :name= "android.permission.READ_EXTERNAL_STORAGE" /> < uses-permission android :name= "android.permission.WRITE_EXTERNAL_STORAGE" /> .. </manifest>

byte[] bytes = ... String.format("%02x" bytes[0]); ref :  http://stackoverflow.com/questions/9655181/how-to-convert-a-byte-array-to-a-hex-string-in-java

$ sudo -s # fdisk -l # umount /dev/sdb1 # fdisk /dev/sdb n p # mke2fs -c /dev/sdb1 # tune2fs -j /dev/sdb1 # e2label /dev/sdb1 sdcardvolume # chown -R user:user /media/sdcard ref :  http://tungchingkai.blogspot.jp/2008/01/format-sd-card-to-linux-filesystem-in.html