今天在QQ群里聊天,一个哥们在某宝买到了一个运行内存16G的手机,当时我就吓尿了,所以有了写个程序把这个手机的实际内存读出来的想法,于是就有了今天这篇博客.
所有的信息项如下图所示.(由于我的测试机没有插手机卡,所以有的信息会显示为空)
以下就是代码:
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;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mTextView = (TextView) findViewById(R.id.textViewId);getPhoneInfo();}/*** 获取手机信息*/public void getPhoneInfo() {TelephonyManager tm = (TelephonyManager) this.getSystemService(TELEPHONY_SERVICE);String mtyb = android.os.Build.BRAND;// 手机品牌String mtype = android.os.Build.MODEL; // 手机型号String imei = tm.getDeviceId();String imsi = tm.getSubscriberId();String numer = tm.getLine1Number(); // 手机号码String serviceName = tm.getSimOperatorName(); // 运营商mTextView.setText("品牌: " + mtyb + "\n" + "型号: " + mtype + "\n" + "版本: Android "+ android.os.Build.VERSION.RELEASE + "\n" + "IMEI: " + imei+ "\n" + "IMSI: " + imsi + "\n" + "手机号码: " + numer + "\n"+ "运营商: " + serviceName + "\n");mTextView.append("总内存: " + getTotalMemory() + "\n");mTextView.append("当前可用内存: " + getAvailMemory() + "\n");mTextView.append("CPU名字: " + getCpuName() + "\n");mTextView.append("CPU最大频率: " + getMaxCpuFreq() + "\n");mTextView.append("CPU最小频率: " + getMinCpuFreq() + "\n");mTextView.append("CPU当前频率: " + getCurCpuFreq() + "\n");}/*** 获取手机内存大小** @return*/private String getTotalMemory() {String str1 = "/proc/meminfo";// 系统内存信息文件String str2;String[] arrayOfString;long initial_memory = 0;try {FileReader localFileReader = new FileReader(str1);BufferedReader localBufferedReader = new BufferedReader(localFileReader, 8192);str2 = localBufferedReader.readLine();// 读取meminfo第一行，系统总内存大小arrayOfString = str2.split("\\s+");for (String num : arrayOfString) {Log.i(str2, num + "\t");}initial_memory = Integer.valueOf(arrayOfString[1]).intValue() * 1024;// 获得系统总内存，单位是KB，乘以1024转换为BytelocalBufferedReader.close();} catch (IOException e) {}return Formatter.formatFileSize(getBaseContext(), initial_memory);// Byte转换为KB或者MB，内存大小规格化}/*** 获取当前可用内存大小** @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 {String[] 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";}// 获取CPU最小频率（单位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";}// 实时获取CPU当前频率（单位KHZ）public static String getCurCpuFreq() {String result = "N/A";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;}}布局文件就是一个TextView,我就不在这里贴出来了.
，带上心灵去旅行，以平和的心态看待一切，
