import android.app.ActivityManager;    import android.content.Context;    import android.net.wifi.WifiInfo;    import android.net.wifi.WifiManager;    import android.os.Build;    import android.support.v7.app.ActionBarActivity;    import android.os.Bundle;    import android.telephony.TelephonyManager;    import android.text.format.Formatter;    import android.util.DisplayMetrics;    import android.view.Menu;    import android.view.MenuItem;    import android.widget.TextView;        import java.io.BufferedReader;    import java.io.FileReader;    import java.io.IOException;    import java.util.TimeZone;            public class Main extends ActionBarActivity {        private TextView tvInfo;            @Override        protected void onCreate(Bundle savedInstanceState) {            super.onCreate(savedInstanceState);            setContentView(R.layout.main);            tvInfo = (TextView) findViewById(R.id.tvInfo);            tvInfo.setText(getBuildInfo(0) + getDisplayInfo(0) + getTelephonyState(0) + getTimeZoneInfo()                    + getHardwareInfo(0));        }            /**        * @param type 0-All,1-Model,2-VersionRelease,Other-Error.        * @return String        */        private String getBuildInfo(int type) {            String model = Build.MODEL; // 型号            String versionRelease = Build.VERSION.RELEASE;            String versionSDK = Build.VERSION.SDK;            String versionIncremental = Build.VERSION.INCREMENTAL;            String brand = Build.BRAND;            String id = Build.ID;            String manufacturer = Build.MANUFACTURER;            String hardware = Build.HARDWARE;            String product = Build.PRODUCT;            String cpuABI = Build.CPU_ABI;            String cpuABI2 = Build.CPU_ABI2;            String fingerPrint = Build.FINGERPRINT;            String board = Build.BOARD;            String serial = Build.SERIAL;            String user = Build.USER;            if (type == 0) {                return "Model:" + model + "\nVersionRelease:" + versionRelease + "\nVersionSDK:" +                        versionSDK + "\nVersionIncremental:" + versionIncremental + "\nBrand:" + brand                        + "\nID:" + id + "\nManufacturer:" + manufacturer + "\nHardware:" + hardware                        + "\nProduct:" + product + "\nCpuABI:" + cpuABI + "\nCpuABI2:" + cpuABI2 +                        "\nFingerPrint:" + fingerPrint + "\nBoard:" + board + "\nSerial:" + serial +                        "\nUser:" + user + "\n";            } else if (type == 1) {                return "Model" + model + "\n";            } else if (type == 2) {                return "VersionRelease:" + versionRelease + "\n";            } else {                return "[getBuildInfo Err]";            }        }            private String getHardwareInfo(int type) {                WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);            WifiInfo wifiInfo = wifiManager.getConnectionInfo();            String macAddress = wifiInfo.getMacAddress();                String strCPU = "";            String[] cpuInfo = {"", ""};  //1-cpu型号  //2-cpu频率            String[] arrayOfStringCPU;            try {                FileReader fileReader = new FileReader("/proc/cpuinfo");                BufferedReader localBufferedReader = new BufferedReader(fileReader, 8192);                strCPU = localBufferedReader.readLine();                arrayOfStringCPU = strCPU.split("\\s+");                for (int i = 2; i < arrayOfStringCPU.length; i++) {                    cpuInfo[0] = cpuInfo[0] + arrayOfStringCPU[i] + " ";                }                strCPU = localBufferedReader.readLine();                arrayOfStringCPU = strCPU.split("\\s+");                cpuInfo[1] += arrayOfStringCPU[2];                localBufferedReader.close();            } catch (IOException e) {                e.printStackTrace();            }                // adb shell;cat /proc/meminfo            ActivityManager.MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();            ActivityManager activityManager = (ActivityManager) this.getSystemService(                    Context.ACTIVITY_SERVICE);            activityManager.getMemoryInfo(memoryInfo);            long mTotalMem = memoryInfo.totalMem;//0;            long mAvailMem = memoryInfo.availMem;            /*           String strMemory;           String[] arrayOfStringMemory;           try {               FileReader localFileReader = new FileReader("/proc/meminfo");               BufferedReader localBufferedReader = new BufferedReader(localFileReader, 8192);               strMemory = localBufferedReader.readLine();               arrayOfStringMemory = strMemory.split("\\s+");               mTotalMem = Integer.valueOf(arrayOfStringMemory[1]).intValue() * 1024;               localBufferedReader.close();           } catch (IOException e) {               e.printStackTrace();           }           */            String totalMemory = Formatter.formatFileSize(this, mTotalMem);            String availMemory = Formatter.formatFileSize(this, mAvailMem);                if (type == 0) {                return "MacAddress:" + macAddress + "\nCpuModel:" + cpuInfo[0] + "\nCpuClock:" +                        cpuInfo[1] + "\nTotalMemory:" + totalMemory + "\nAvailableMemory:" + availMemory                        + "\n";            } else {                return "";            }        }                /**        * @param type 0-All,1-DeviceId,2-SubscriberId,3-PhoneNumber,Other-Error.        * @return String        */        private String getTelephonyState(int type) {            TelephonyManager telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);            String deviceId = telephonyManager.getDeviceId();            String subscriberId = telephonyManager.getSubscriberId();            String phoneNumber = telephonyManager.getLine1Number();                if (type == 0) {                return "DeviceId:" + deviceId + "\nSubscriberId:" + subscriberId + "\nPhoneNumber:" + phoneNumber + "\n";            } else if (type == 1) {                return "DeviceId:" + deviceId + "\n";            } else if (type == 2) {                return "SubscriberId" + subscriberId + "\n";            } else if (type == 3) {                return "PhoneNumber:" + phoneNumber + "\n";            } else {                return "[getTelephonyState Err]";            }        }            /**        * @param type 0-All,1-ScreenHeight,2-ScreenWidth,Other-Error.        * @return String        */        private String getDisplayInfo(int type) {            DisplayMetrics displayMetrics = new DisplayMetrics();            getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);            int screenHeight = displayMetrics.heightPixels;            int screenWidth = displayMetrics.widthPixels;            if (type == 0) {                return "ScreenHeight:" + screenHeight + "\nScreenWidth:" + screenWidth + "\n";            } else if (type == 1) {                return "ScreenHeight:" + screenHeight + "\n";            } else if (type == 2) {                return "ScreenWidth:" + screenWidth + "\n";            } else {                return "[getTelephonyState Err]";            }        }            private String getTimeZoneInfo() {            TimeZone timeZone = TimeZone.getDefault();            return "TimeZone:" + timeZone.toString() + "\n";        }            @Override        public boolean onCreateOptionsMenu(Menu menu) {            // Inflate the menu; this adds items to the action bar if it is present.            getMenuInflater().inflate(R.menu.main, menu);            return true;        }            @Override        public boolean onOptionsItemSelected(MenuItem item) {            // Handle action bar item clicks here. The action bar will            // automatically handle clicks on the Home/Up button, so long            // as you specify a parent activity in AndroidManifest.xml.            int id = item.getItemId();                //noinspection SimplifiableIfStatement            if (id == R.id.action_settings) {                return true;            }                return super.onOptionsItemSelected(item);        }    }