Android 系统CPU,RAM,ROM,SDCard,MAC等信息查询
Android 系统CPU,RAM,ROM,SDCard,MAC等信息查询的方法如下：首先在AndroidManifest.xml中引入<!-- 在SDCard中创建与删除文件权限 -->
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
<!-- 往SDCard写入数据权限 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<!-- WIFI权限 -->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> 设备信息查询类DeviceQuery.javaimport java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.ListActivity;
import android.content.Context;
import android.os.Bundle;
import android.os.Environment;
import android.os.StatFs;
import android.os.SystemClock;
import android.widget.SimpleAdapter;
import android.util.DisplayMetrics;
import android.app.ActivityManager;
import android.net.wifi.WifiManager;
import android.net.wifi.WifiInfo;
public class DeviceQuery extends ListActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
SimpleAdapter adapter = new SimpleAdapter(this, getData(),
R.layout.device_query, new String[] { "title", "info" },
new int[] { R.id.title, R.id.info });
setListAdapter(adapter);
//
}
private List<Map<String, Object>> getData() {
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
Map<String, Object> map;
// SD卡容量
if (ExistSDCard()) {
map = new HashMap<String, Object>();
map.put("title", "SDCard");
map.put("info", "总大小：" + formatSize(getTotalSDSize()) + " 可用空间:"
+ formatSize(getAvailSDSize()));
list.add(map);
}
// CPU型号与频率
String[] cpuInfo = getCpuInfo();
map = new HashMap<String, Object>();
map.put("title", "CPU");
map.put("info", "型号：" + cpuInfo + " 频率：" + cpuInfo + "MHz");
list.add(map);
// RAM 大小
map = new HashMap<String, Object>();
map.put("title", "RAM");
map.put("info", "总大小:" + formatSize(getTotalRAMSize()) + " 可用空间："
+ formatSize(getAvailRAMSize()));
list.add(map);
// ROM 大小
map = new HashMap<String, Object>();
map.put("title", "ROM");
map.put("info", "总大小：" + formatSize(getTotalROMSize()) + " 可用空间："
+ formatSize(getAvailROMSize()));
list.add(map);
// MAC 地址
map = new HashMap<String, Object>();
map.put("title", "MAC");
map.put("info", getMacAddress());
list.add(map);
// 设备型号
map = new HashMap<String, Object>();
map.put("title", "设备型号");
map.put("info", android.os.Build.MODEL);
list.add(map);
// 系统版本
map = new HashMap<String, Object>();
map.put("title", "系统版本");
map.put("info", "Android " + android.os.Build.VERSION.RELEASE);
list.add(map);
// 开机时长
map = new HashMap<String, Object>();
map.put("title", "开机时长");
map.put("info", getElapsedTime());
list.add(map);
// 屏幕分辨率
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
int width = dm.widthPixels; // 当前分辨率 宽度
int height = dm.heightPixels; // 当前分辨率高度
map = new HashMap<String, Object>();
map.put("title", "屏幕分辨率");
map.put("info", width + "X" + height);
list.add(map);
return list;
}
// SD卡 可用空间
public long getAvailSDSize() {
// 取得SD卡文件路径
File path = Environment.getExternalStorageDirectory();
StatFs sf = new StatFs(path.getPath());
// 获取单个数据块的大小(Byte)
long blockSize = sf.getBlockSize();
// 空闲的数据块的数量
long availBlocks = sf.getAvailableBlocks();
// 返回SD卡空闲大小
return availBlocks * blockSize; // Byte
}
// SD卡总大小
public long getTotalSDSize() {
// 取得SD卡文件路径
File path = Environment.getExternalStorageDirectory();
StatFs sf = new StatFs(path.getPath());
// 获取单个数据块的大小(Byte)
long blockSize = sf.getBlockSize();
// 获取所有数据块数
long totalBlocks = sf.getBlockCount();
// 返回SD卡大小
return totalBlocks * blockSize; // Byte
}
// 获得CPU信息
public String[] getCpuInfo() {
String str1 = "/proc/cpuinfo";
String str2 = "";
String[] cpuInfo = { "", "" }; // 1-cpu型号 //2-cpu频率
String[] arrayOfString;
try {
FileReader fr = new FileReader(str1);
BufferedReader localBufferedReader = new BufferedReader(fr, 8192);
str2 = localBufferedReader.readLine();
arrayOfString = str2.split("\\s+");
for (int i = 2; i < arrayOfString.length; i++) {
cpuInfo = cpuInfo + arrayOfString + " ";
}
str2 = localBufferedReader.readLine();
arrayOfString = str2.split("\\s+");
cpuInfo += arrayOfString;
localBufferedReader.close();
} catch (IOException e) {
}
// Log.i(TAG, "cpuinfo:" + cpuInfo + " " + cpuInfo);
return cpuInfo;
}
// RAM 总大小
public long getTotalRAMSize() {
String str1 = "/proc/meminfo";// 系统内存信息文件
String str2;
String[] arrayOfString;
long totalSize = 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+");
// 获得系统总内存，单位是KB，乘以1024转换为Byte
totalSize = Integer.valueOf(arrayOfString).intValue() * 1024;
localBufferedReader.close();
} catch (IOException e) {
}
return totalSize;
}
// RAM 可用空间
public long getAvailRAMSize() {
ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
ActivityManager.MemoryInfo memInfo = new ActivityManager.MemoryInfo();
am.getMemoryInfo(memInfo);
return memInfo.availMem;
}
// ROM总大小
public long getTotalROMSize() {
File path = Environment.getDataDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long totalBlocks = stat.getBlockCount();
return totalBlocks * blockSize; // Byte
}
// ROM可用空间
public long getAvailROMSize() {
File path = Environment.getDataDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long availableBlocks = stat.getAvailableBlocks();
return availableBlocks * blockSize; // Byte
}
// MAC地址
public String getMacAddress() {
String macStr = "";
WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
if (wifiInfo.getMacAddress() != null) {
macStr = wifiInfo.getMacAddress();// MAC地址
} else {
macStr = "null";
}
return macStr;
}
// 取得开机时长
public String getElapsedTime() {
long ut = SystemClock.elapsedRealtime() / 1000;
if (ut == 0) {
ut = 1;
}
int m = (int) ((ut / 60) % 60);
int h = (int) ((ut / 3600));
return h + " " + "小时 " + m + " " + "分钟";
}
// 判断存储卡是否存在
public boolean ExistSDCard() {
if (android.os.Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED)) {
return true;
} else
return false;
}
// 格式化数据
public String formatSize(long size) {
String suffix = "B";// Byte
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();
}
}列表项配置文件device_query.xml<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFF"
android:textSize="28sp"
android:layout_marginLeft="10dip"/>
<TextView
android:id="@+id/info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:textColor="#C6CBD0"
android:layout_marginLeft="10dip"/>
</LinearLayout>
环境：XP3+Eclipse+Android2.2+JDK6.0
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