Android系统信息(内存、cpu、sd卡、电量、版本)获取
一、内存(ram):
注意类型,不然相乘之后会有溢出。可用内部存储的大小不能通过getRootDirectory();取得,
五、CPU信息 : /proc/cpuinfo文件中第一行是CPU的型号,第二行是CPU的频率
六、系统的版本信息:
七、MAC地址和开机时间:
android的总内存大小信息存放在系统的/proc/meminfo文件里面,可以通过读取这个文件来获取这些信息:
public void getTotalMemory() { String str1 = "/proc/meminfo"; String str2=""; try { FileReader fr = new FileReader(str1); BufferedReader localBufferedReader = new BufferedReader(fr, 8192); while ((str2 = localBufferedReader.readLine()) != null) { Log.i(TAG, "---" + str2); } } catch (IOException e) { } }运行信息如下: 第一行是总内存大小(即用户可以使用的ram的大小)
11-30 08:05:14.807: INFO/-SystemInfo-(1519): ---MemTotal: 204876 kB 11-30 08:05:14.807: INFO/-SystemInfo-(1519): ---MemFree: 4596 kB 11-30 08:05:14.807: INFO/-SystemInfo-(1519): ---Buffers: 16020 kB 11-30 08:05:14.807: INFO/-SystemInfo-(1519): ---Cached: 82508 kB 11-30 08:05:14.807: INFO/-SystemInfo-(1519): ---SwapCached: 64 kB 11-30 08:05:14.807: INFO/-SystemInfo-(1519): ---Active: 137104 kB 11-30 08:05:14.807: INFO/-SystemInfo-(1519): ---Inactive: 41056 kB 11-30 08:05:14.807: INFO/-SystemInfo-(1519): ---SwapTotal: 65528 kB 11-30 08:05:14.817: INFO/-SystemInfo-(1519): ---SwapFree: 65368 kB 11-30 08:05:14.817: INFO/-SystemInfo-(1519): ---Dirty: 88 kB 11-30 08:05:14.817: INFO/-SystemInfo-(1519): ---Writeback: 0 kB 11-30 08:05:14.817: INFO/-SystemInfo-(1519): ---AnonPages: 79672 kB 11-30 08:05:14.817: INFO/-SystemInfo-(1519): ---Mapped: 38296 kB 11-30 08:05:14.817: INFO/-SystemInfo-(1519): ---Slab: 5768 kB 11-30 08:05:14.817: INFO/-SystemInfo-(1519): ---SReclaimable: 1856 kB 11-30 08:05:14.827: INFO/-SystemInfo-(1519): ---SUnreclaim: 3912 kB 11-30 08:05:14.827: INFO/-SystemInfo-(1519): ---PageTables: 8184 kB 11-30 08:05:14.827: INFO/-SystemInfo-(1519): ---NFS_Unstable: 0 kB 11-30 08:05:14.827: INFO/-SystemInfo-(1519): ---Bounce: 0 kB 11-30 08:05:14.827: INFO/-SystemInfo-(1519): ---CommitLimit: 167964 kB 11-30 08:05:14.827: INFO/-SystemInfo-(1519): ---Committed_AS: 11771920 kB 11-30 08:05:14.827: INFO/-SystemInfo-(1519): ---VmallocTotal: 761856 kB 11-30 08:05:14.827: INFO/-SystemInfo-(1519): ---VmallocUsed: 83656 kB 11-30 08:05:14.827: INFO/-SystemInfo-(1519): ---VmallocChunk: 674820 kB获取当前剩余内存(ram)大小的方法 :
public long getAvailMemory() { ActivityManager am = (ActivityManager)mContext.getSystemService(Context.ACTIVITY_SERVICE); ActivityManager.MemoryInfo mi = new ActivityManager.MemoryInfo(); am.getMemoryInfo(mi); return mi.availMem; }
二、Rom大小
public long[] getRomMemroy() { long[] romInfo = new long[2]; //Total rom memory romInfo[0] = getTotalInternalMemorySize(); //Available rom memory File path = Environment.getDataDirectory(); StatFs stat = new StatFs(path.getPath()); long blockSize = stat.getBlockSize(); long availableBlocks = stat.getAvailableBlocks(); romInfo[1] = blockSize * availableBlocks; getVersion(); return romInfo; } public long getTotalInternalMemorySize() { File path = Environment.getDataDirectory(); StatFs stat = new StatFs(path.getPath()); long blockSize = stat.getBlockSize(); long totalBlocks = stat.getBlockCount(); return totalBlocks * blockSize; }
注意类型,不然相乘之后会有溢出。可用内部存储的大小不能通过getRootDirectory();取得,
网上传的很多都是用getRootDirectory()取得的,我测试之后发现取得的数值不对。要根据getDataDirectory();取得。
三、sdCard大小 注意类型,不然相乘之后会有溢出。
public long[] getSDCardMemory() { long[] sdCardInfo=new long[2]; String state = Environment.getExternalStorageState(); if (Environment.MEDIA_MOUNTED.equals(state)) { File sdcardDir = Environment.getExternalStorageDirectory(); StatFs sf = new StatFs(sdcardDir.getPath()); long bSize = sf.getBlockSize(); long bCount = sf.getBlockCount(); long availBlocks = sf.getAvailableBlocks(); sdCardInfo[0] = bSize * bCount;//总大小 sdCardInfo[1] = bSize * availBlocks;//可用大小 } return sdCardInfo; }四、电池电量
private BroadcastReceiver batteryReceiver=new BroadcastReceiver(){ @Override public void onReceive(Context context, Intent intent) { int level = intent.getIntExtra("level", 0); // level加%就是当前电量了 } };然后在activity的oncreate()方法中注册
registerReceiver(batteryReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
五、CPU信息 : /proc/cpuinfo文件中第一行是CPU的型号,第二行是CPU的频率
adb shell (connect to your Android device shell) cat /proc/cpuinfo (read the CPU info)
private String getInfo() { StringBuffer sb = new StringBuffer(); sb.append("abi: ").append(Build.CPU_ABI).append("/n"); if (new File("/proc/cpuinfo").exists()) { try { BufferedReader br = new BufferedReader(new FileReader(new File("/proc/cpuinfo"))); String aLine; while ((aLine = br.readLine()) != null) { sb.append(aLine + "/n"); } if (br != null) { br.close(); } } catch (IOException e) { e.printStackTrace(); } } return sb.toString();}
六、系统的版本信息:
public String[] getVersion(){ String[] version={"null","null","null","null"}; String str1 = "/proc/version"; String str2; String[] arrayOfString; try { FileReader localFileReader = new FileReader(str1); BufferedReader localBufferedReader = new BufferedReader( localFileReader, 8192); str2 = localBufferedReader.readLine(); arrayOfString = str2.split("//s+"); version[0]=arrayOfString[2];//KernelVersion localBufferedReader.close(); } catch (IOException e) { } version[1] = Build.VERSION.RELEASE;// firmware version version[2]=Build.MODEL;//model version[3]=Build.DISPLAY;//system version return version; }版本信息里面还包括型号等信息。
七、MAC地址和开机时间:
public String[] 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(); return other; } private String getTimes() { long ut = SystemClock.elapsedRealtime() / 1000; if (ut == 0) { ut = 1; } int m = (int) ((ut / 60) % 60); int h = (int) ((ut / 3600)); return h + " " + mContext.getString(R.string.info_times_hour) + m + " " + mContext.getString(R.string.info_times_minute); }最后贴一个格式化数据的方法: 保留两位小数。
public String formatSize(long size) { String suffix = null; float fSize=0; if (size >= 1024) { suffix = "KB"; fSize=size / 1024; if (fSize >= 1024) { suffix = "MB"; fSize /= 1024; } if (fSize >= 1024) { suffix = "GB"; fSize /= 1024; } } else { fSize = size; } java.text.DecimalFormat df = new java.text.DecimalFormat("#0.00"); StringBuilder resultBuffer = new StringBuilder(df.format(fSize)); if (suffix != null) resultBuffer.append(suffix); return resultBuffer.toString(); }
>更多相关文章
首页推荐
佛山市东联科技有限公司一直秉承“一切以用户价值为依归
- 01-11全球最受赞誉公司揭晓:苹果连续九年第一
- 12-09罗伯特·莫里斯:让黑客真正变黑
- 12-09谁闯入了中国网络?揭秘美国绝密黑客小组TA
- 12-09警示:iOS6 惊现“闪退”BUG
- 04-21中国产品数字护照体系加速建设
- 04-21上海口岸汽车出口突破50万辆
- 04-21外媒:微软囤货GPU以发展AI
- 04-21苹果手表MicroLED项目停滞持续波及供应链
- 04-21三部门:到2024年末IPv6活跃用户数达到8亿
相关文章
24小时热门资讯
24小时回复排行
热门推荐
最新资讯
操作系统
黑客防御