Android获取CPU信息 CPU名字和主频

末蓝、 2022-04-16 20:29 1426阅读 0赞

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文章参照自： [http://www.2cto.com/kf/201206/134236.html][http_www.2cto.com_kf_201206_134236.html]

在 Android 中，我们可以通过读取一些系统文件来获得手机的 cpu信息 (CPU 名字 和CPU 主频 )。

具体请参照实例1.

实例1

package  edu . cdut . robin ; import  java . io . BufferedReader ; import  java . io . FileNotFoundException ; import  java . io . FileReader ; import  java . io . IOException ; public  class  CPUTool \{       private  final  static  String  kCpuInfoMaxFreqFilePath  =  "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo\_max\_freq" ;      public  static  int  getMaxCpuFreq ()      \{           int  result  =  0 ;          FileReader  fr  =  null ;          BufferedReader  br  =  null ;          try          \{              fr  =  new  FileReader ( kCpuInfoMaxFreqFilePath );             br  =  new  BufferedReader ( fr );              String  text  =  br . readLine ();             result  =  Integer . parseInt ( text . trim ());          \}  catch  ( FileNotFoundException  e )          \{              e . printStackTrace ();          \}  catch  ( IOException  e )          \{              e . printStackTrace ();          \}  finally          \{               if  ( fr  !=  null )                  try                  \{                      fr . close ();                  \}  catch  ( IOException  e )                  \{                       // TODO Auto-generated catch block                     e . printStackTrace ();                  \}              if  ( br  !=  null )                  try                  \{                      br . close ();                  \}  catch  ( IOException  e )                  \{                       // TODO Auto-generated catch block                     e . printStackTrace ();                  \}          \}          return  result ;      \}      private  final  static  String  kCpuInfoMinFreqFilePath  =  "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo\_min\_freq" ;      /\* 获取CPU最小频率（单位KHZ） \*/      public  static  int  getMinCpuFreq ()      \{           int  result  =  0 ;          FileReader  fr  =  null ;          BufferedReader  br  =  null ;          try          \{              fr  =  new  FileReader ( kCpuInfoMinFreqFilePath );             br  =  new  BufferedReader ( fr );              String  text  =  br . readLine ();             result  =  Integer . parseInt ( text . trim ());          \}  catch  ( FileNotFoundException  e )          \{              e . printStackTrace ();          \}  catch  ( IOException  e )          \{              e . printStackTrace ();          \}  finally          \{               if  ( fr  !=  null )                  try                  \{                      fr . close ();                  \}  catch  ( IOException  e )                  \{                       // TODO Auto-generated catch block                     e . printStackTrace ();                  \}              if  ( br  !=  null )                  try                  \{                      br . close ();                  \}  catch  ( IOException  e )                  \{                       // TODO Auto-generated catch block                     e . printStackTrace ();                  \}          \}          return  result ;      \}      private  final  static  String  kCpuInfoCurFreqFilePath  =  "/sys/devices/system/cpu/cpu0/cpufreq/scaling\_cur\_freq" ;      /\* 实时获取CPU当前频率（单位KHZ） \*/      public  static  int  getCurCpuFreq ()      \{           int  result  =  0 ;          FileReader  fr  =  null ;          BufferedReader  br  =  null ;          try          \{              fr  =  new  FileReader ( kCpuInfoCurFreqFilePath );             br  =  new  BufferedReader ( fr );              String  text  =  br . readLine ();             result  =  Integer . parseInt ( text . trim ());          \}  catch  ( FileNotFoundException  e )          \{              e . printStackTrace ();          \}  catch  ( IOException  e )          \{              e . printStackTrace ();          \}  finally          \{               if  ( fr  !=  null )                  try                  \{                      fr . close ();                  \}  catch  ( IOException  e )                  \{                       // TODO Auto-generated catch block                     e . printStackTrace ();                  \}              if  ( br  !=  null )                  try                  \{                      br . close ();                  \}  catch  ( IOException  e )                  \{                       // TODO Auto-generated catch block                     e . printStackTrace ();                  \}          \}          return  result ;      \}      /\* 获取CPU名字 \*/      public  static  String  getCpuName ()      \{           FileReader  fr  =  null ;          BufferedReader  br  =  null ;          try          \{              fr  =  new  FileReader ( "/proc/cpuinfo" );             br  =  new  BufferedReader ( fr );              String  text  =  br . readLine ();              String \[\]  array  =  text . split ( ":\\\\s+" ,  2 );              for  ( int  i  =  0 ;  i  <  array . length ;  i \++)              \{               \}              return  array \[ 1 \];          \}  catch  ( FileNotFoundException  e )          \{              e . printStackTrace ();          \}  catch  ( IOException  e )          \{              e . printStackTrace ();          \}  finally          \{               if  ( fr  !=  null )                  try                  \{                      fr . close ();                  \}  catch  ( IOException  e )                  \{                       // TODO Auto-generated catch block                     e . printStackTrace ();                  \}              if  ( br  !=  null )                  try                  \{                      br . close ();                  \}  catch  ( IOException  e )                  \{                       // TODO Auto-generated catch block                     e . printStackTrace ();                  \}          \}          return  null ;      \} \}

结束

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