[Android] obtains information about the mobile phone's hardware and android hardware.

[Android] obtains information about the mobile phone's hardware and android hardware.

Today, I chatted in the QQ group. A buddy bought a 16 GB mobile phone running memory in a certain treasure. At that time, I was so scared, so I had the idea of writing a program to read the actual memory of this mobile phone, so I had this blog today.

Shows all information items. (Some information is displayed blank because my test machine does not have a mobile phone card)

The following code is used:

Package com. liu. chad. practicesqlite; import android. app. activityManager; import android. content. context; import android. OS. bundle; import android. support. v7.app. actionBarActivity; import android. telephony. telephonyManager; import android. text. format. formatter; import android. util. log; import android. widget. textView; import java. io. bufferedReader; import java. io. fileNotFoundException; import java. io. fileReader; Import java. io. IOException; import java. io. inputStream; public class MainActivity extends ActionBarActivity {private TextView mTextView; @ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); mTextView = (TextView) findViewById (R. id. textViewId); getPhoneInfo ();}/*** get mobile phone information */public void getPhoneInfo () {Telepho NyManager tm = (TelephonyManager) this. getSystemService (TELEPHONY_SERVICE); String mtyb = android. OS. build. BRAND; // mobile BRAND String mtype = android. OS. build. MODEL; // mobile phone MODEL String imei = tm. getDeviceId (); String imsi = tm. getSubscriberId (); String numer = tm. getLine1Number (); // mobile phone number String serviceName = tm. getSimOperatorName (); // carrier mTextView. setText ("brand:" + mtyb + "\ n" + "model:" + mtype + "\ n" +" Current: Android "+ android. OS. build. VERSION. RELEASE + "\ n" + "IMEI:" + imei + "\ n" + "IMSI:" + imsi + "\ n" + "mobile phone number: "+ numer +" \ n "+" carrier: "+ serviceName +" \ n "); mTextView. append ("total memory:" + getTotalMemory () + "\ n"); mTextView. append ("current available memory:" + getAvailMemory () + "\ n"); mTextView. append ("CPU name:" + getCpuName () + "\ n"); mTextView. append ("Maximum CPU frequency:" + getMaxCpuFreq () + "\ n"); mTextView. append ("CP U minimum frequency: "+ getMinCpuFreq () +" \ n "); mTextView. append ("Current CPU frequency:" + getCurCpuFreq () + "\ n");}/*** get the phone memory size ** @ return */private String getTotalMemory () {String str1 = "/proc/meminfo"; // system memory information file String str2; String [] arrayOfString; long initial_memory = 0; try {FileReader localFileReader = new FileReader (str1); BufferedReader localBufferedReader = new BufferedReader (localFileReader, 8192); s Tr2 = localBufferedReader. readLine (); // read the first line of meminfo. The total memory size of the system is arrayOfString = str2.split ("\ s +"); for (String num: arrayOfString) {Log. I (str2, num + "\ t");} initial_memory = Integer. valueOf (arrayOfString [1]). intValue () * 1024; // obtain the total system memory, in KB. Multiply by 1024 and convert it to Byte localBufferedReader. close ();} catch (IOException e) {} return Formatter. formatFileSize (getBaseContext (), initial_memory); // Byte to KB or MB, in Memory size normalization}/*** get the current available memory size ** @ return */private String getAvailMemory () {ActivityManager am = (ActivityManager) getSystemService (Context. ACTIVITY_SERVICE); ActivityManager. memoryInfo mi = new ActivityManager. memoryInfo (); am. getMemoryInfo (mi); return Formatter. formatFileSize (getBaseContext (), mi. availMem);} public static String getMaxCpuFreq () {String result = ""; ProcessBuilder cmd; try {Str Ing [] args = {"/system/bin/cat", "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq "}; cmd = new ProcessBuilder (args); Process process = cmd. start (); InputStream in = process. getInputStream (); byte [] re = new byte [24]; while (in. read (re )! =-1) {result = result + new String (re);} in. close ();} catch (IOException ex) {ex. printStackTrace (); result = "N/A";} return result. trim () + "Hz" ;}// obtain the Minimum CPU frequency (unit: KHZ) public static String getMinCpuFreq () {String result = ""; ProcessBuilder cmd; try {String [] args = {"/system/bin/cat", "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq "}; cmd = new ProcessBuilder (args); Process process = Cmd. start (); InputStream in = process. getInputStream (); byte [] re = new byte [24]; while (in. read (re )! =-1) {result = result + new String (re);} in. close ();} catch (IOException ex) {ex. printStackTrace (); result = "N/A";} return result. trim () + "Hz" ;}// obtain the current CPU frequency in real time (unit: KHZ) public static String getCurCpuFreq () {String result = "N/"; try {FileReader fr = new FileReader ("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq"); BufferedReader br = new BufferedReader (fr); String text = br. readLine (); result = text. trim () + "Hz";} catch (FileNotFoundException e) {e. printStackTrace ();} catch (IOException e) {e. printStackTrace ();} return result;} public static String getCpuName () {try {FileReader fr = new FileReader ("/proc/cpuinfo "); bufferedReader 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 ();} return null ;}}

The layout file is a TextView and I will not post it here.