Android-System Information (memory, CPU, SD card, power, version) get

Memory (RAM)

The total memory size information of Android is stored in the system's/proc/meminfo file, which can be obtained by reading this file:

 Public voidgettotalmemory () {String str1= "/proc/meminfo"; String str2=""; Try{FileReader fr=NewFileReader (STR1); BufferedReader Localbufferedreader=NewBufferedReader (FR, 8192);  while((str2 = Localbufferedreader.readline ())! =NULL) {log.i (TAG,"---" +str2); }          } Catch(IOException e) {}}

The operating information is as follows:

05-30 08:05:14.807:info/-systeminfo-(1519):---memtotal:204876KB05-30 08:05:14.807:info/-systeminfo-(1519):---memfree:4596KB05-30 08:05:14.807:info/-systeminfo-(1519):---buffers:16020KB05-30 08:05:14.807:info/-systeminfo-(1519):---cached:82508KB05-30 08:05:14.807:info/-systeminfo-(1519):---swapcached:64KB05-30 08:05:14.807:info/-systeminfo-(1519):---active:137104KB05-30 08:05:14.807:info/-systeminfo-(1519):---inactive:41056KB05-30 08:05:14.807:info/-systeminfo-(1519):---swaptotal:65528KB05-30 08:05:14.817:info/-systeminfo-(1519):---swapfree:65368KB05-30 08:05:14.817:info/-systeminfo-(1519):---dirty:88KB05-30 08:05:14.817:info/-systeminfo-(1519):---writeback:0KB05-30 08:05:14.817:info/-systeminfo-(1519):---anonpages:79672KB05-30 08:05:14.817:info/-systeminfo-(1519):---mapped:38296KB05-30 08:05:14.817:info/-systeminfo-(1519):---slab:5768KB05-30 08:05:14.817:info/-systeminfo-(1519):---sreclaimable:1856KB05-30 08:05:14.827:info/-systeminfo-(1519):---sunreclaim:3912KB05-30 08:05:14.827:info/-systeminfo-(1519):---pagetables:8184KB05-30 08:05:14.827:info/-systeminfo-(1519):---nfs_unstable:0KB05-30 08:05:14.827:info/-systeminfo-(1519):---bounce:0KB05-30 08:05:14.827:info/-systeminfo-(1519):---commitlimit:167964KB05-30 08:05:14.827:info/-systeminfo-(1519):---committed_as:11771920KB05-30 08:05:14.827:info/-systeminfo-(1519):---vmalloctotal:761856KB05-30 08:05:14.827:info/-systeminfo-(1519):---vmallocused:83656KB05-30 08:05:14.827:info/-systeminfo-(1519):---vmallocchunk:674820 kB

The first line is the total memory size (that is, the amount of RAM the user can use)!

To get the current remaining memory (RAM) Size:

 public  long   Getavailmemory () {activitymanager am  = (Acti          Vitymanager) Mcontext.getsystemservice (Context.activity_service); Activitymanager.memoryinfo mi  = new            Activitymanager.memoryinfo ();          Am.getmemoryinfo (MI);       return   Mi.availmem; }

Rom Size

 Public Long[] Getrommemroy () {Long[] Rominfo =New Long[2]; //Total rom MemoryRominfo[0] =gettotalinternalmemorysize (); //Available ROM MemoryFile Path =environment.getdatadirectory (); StatFs Stat=NewStatFs (Path.getpath ()); LongBlockSize =stat.getblocksize (); LongAvailableblocks =stat.getavailableblocks (); rominfo[1] = BlockSize *availableblocks;          GetVersion (); returnRominfo; }         Public Longgettotalinternalmemorysize () {File path=environment.getdatadirectory (); StatFs Stat=NewStatFs (Path.getpath ()); LongBlockSize =stat.getblocksize (); LongTotalblocks =Stat.getblockcount (); returnTotalblocks *blockSize; }

Note the type, or there will be an overflow after multiplying. The size of the available internal storage cannot be passed getrootdirectory (); obtained, many of the previous online transmission was made with getrootdirectory (), I found that the value of the test was incorrect. To be based on getdatadirectory ();

SDcard size

 Public Long[] Getsdcardmemory () {Long[] sdcardinfo=New Long[2]; String State=environment.getexternalstoragestate (); if(Environment.MEDIA_MOUNTED.equals (state)) {File Sdcarddir=environment.getexternalstoragedirectory (); StatFs SF=NewStatFs (Sdcarddir.getpath ()); LongBsize =sf.getblocksize (); LongBcount =Sf.getblockcount (); LongAvailblocks =sf.getavailableblocks (); sdcardinfo[0] = bsize * BCOUNT;//Total sizeSDCARDINFO[1] = bsize * availblocks;//Available Sizes        }          returnSdcardinfo; }

Note the type, or there will be an overflow after multiplying.

battery charge                                                                                         

Private Broadcastreceiver batteryreceiver=New  broadcastreceiver () {          @Override          public void OnReceive (Context context, Intent Intent) {              int level = Intent.getintextra ("level", 0);               //level  plus%  is current charge     }      };

Then register in the activity's OnCreate () method

New Intentfilter (intent.action_battery_changed));

CPU Information

 Publicstring[] Getcpuinfo () {String str1= "/proc/cpuinfo"; String str2=""; String[] CpuInfo={"",""};      String[] arrayofstring; Try{FileReader fr=NewFileReader (STR1); BufferedReader Localbufferedreader=NewBufferedReader (FR, 8192); STR2=Localbufferedreader.readline (); Arrayofstring= Str2.split ("\\s+");  for(inti = 2; i < arrayofstring.length; i++) {cpuinfo[0] = Cpuinfo[0] + arrayofstring[i] + ""; } str2=Localbufferedreader.readline (); Arrayofstring= Str2.split ("\\s+"); cpuinfo[1] + = arrayofstring[2];      Localbufferedreader.close (); } Catch(IOException e) {}returnCpuInfo; }

The first row in the/proc/cpuinfo file is the CPU model, the second line is the CPU frequency, can read the file, read the data!

Version information for the system

 Publicstring[] GetVersion () {string[] version={"null", "null", "null", "NULL"}; String str1= "/proc/version";      String str2;      String[] arrayofstring; Try{FileReader Localfilereader=NewFileReader (STR1); BufferedReader Localbufferedreader=NewBufferedReader (Localfilereader,8192); STR2=Localbufferedreader.readline (); Arrayofstring= Str2.split ("\\s+"); version[0]=ARRAYOFSTRING[2];//kernelversionLocalbufferedreader.close (); } Catch(IOException e) {} version[1] = Build.VERSION.RELEASE;//Firmware versionVersion[2]=build.model;//ModelVersion[3]=build.display;//System Version    returnversion; }

Version information also includes information such as model numbers.

MAC address and boot time

 Publicstring[] Getotherinfo () {string[] other={"null", "NULL"}; Wifimanager Wifimanager=(Wifimanager) Mcontext.getsystemservice (Context.wifi_service); Wifiinfo Wifiinfo=Wifimanager.getconnectioninfo (); if(Wifiinfo.getmacaddress ()! =NULL) {other[0]=wifiinfo.getmacaddress (); } Else{other[0] = "Fail"; } other[1] =Gettimes (); returnOther ; }  PrivateString gettimes () {LongUT = Systemclock.elapsedrealtime ()/1000; if(UT = = 0) {ut= 1; }      intm = (int) ((UT/60)% 60); intH = (int) ((ut/3600)); returnH + "" + mcontext.getstring (r.string.info_times_hour) + M + "" +mcontext.getstring (R.string.info_times_minute); }

I'm the dividing line of the king of the Land Tiger.

Reference: http://gqdy365.iteye.com/blog/1066113