Android系统信息工具类，android工具类, public c

Android系统信息工具类，android工具类, public c

    public class SystemInfoUtils {          public static int getRunningAppProcesses(Context context) {// 得到当前系统内运行的app进程数量              ActivityManager am = (ActivityManager) context                      .getSystemService(Context.ACTIVITY_SERVICE);              List<RunningAppProcessInfo> appInfos = am.getRunningAppProcesses();              return appInfos.size();          }          public static List<HashMap<String, Object>> getAppInfo(Context context) {// 得到非系统应用的app信息              List<HashMap<String, Object>> appInfos = new ArrayList<HashMap<String, Object>>();              HashMap<String, Object> map = null;              List<PackageInfo> packages = context.getPackageManager()                      .getInstalledPackages(0);// 参数传入0表示过滤权限，因为可能有的手机不让你获取应用信息              for (PackageInfo temp : packages) {                  if ((temp.applicationInfo.flags &amp; temp.applicationInfo.FLAG_SYSTEM) == 0) {                      // 非系统应用                      // 得到应用的名称                      String appName = temp.applicationInfo.loadLabel(                              context.getPackageManager()).toString();                      // 得到应用图标                      Drawable appIcon = temp.applicationInfo.loadIcon(context                              .getPackageManager());                      // 得到应用最后一次更新的时间                      long lastUpdateTime = temp.lastUpdateTime;                      // 得到应用的包名                      String packageName = temp.packageName;                      // 得到应用的版本信息                      String versionName = temp.versionName;                      map = new HashMap<String, Object>();                      map.put("appName", appName);                      map.put("appIcon", appIcon);                      map.put("lastUpdateTime", lastUpdateTime);                      map.put("packageName", packageName);                      map.put("versionName", versionName);                      appInfos.add(map);// 把应用信息加入集合中返回                      map = null;                  } else {                      // 系统应用                  }              }              return appInfos;          }          // 获取sd卡容量          public static String getSdSize(Context context) {              String totalStr = null, availStr = null;              if (Environment.getExternalStorageState().equals(                      Environment.MEDIA_MOUNTED)) {// 判断是否检测到sd卡                  File path = Environment.getExternalStorageDirectory();                  StatFs stat = new StatFs(path.getPath());                  long blockSize = stat.getBlockSizeLong();                  long availableBlocks = stat.getAvailableBlocksLong();                  long totalBlocks = stat.getBlockCountLong();                  long totalSize = blockSize * totalBlocks;                  long availSize = blockSize * availableBlocks;                  totalStr = Formatter.formatFileSize(context, totalSize);                  availStr = Formatter.formatFileSize(context, availSize);              } else                  Toast.makeText(context, "没有检测到SD卡，请检查是否正确插入", Toast.LENGTH_SHORT)                          .show();              return "SD卡总容量为:" + totalStr + "可用为:" + availStr;          }          // 获取手机内存          public static String getRomSave(Context context) {              String totalStr = null, availStr = null;              File path = Environment.getDataDirectory();              StatFs stat = new StatFs(path.getPath());// 得到手机内存的路径              long blockSize = stat.getBlockSizeLong();              long availableBlocks = stat.getAvailableBlocksLong();              long totalBlocks = stat.getBlockCountLong();              long totalSize = blockSize * totalBlocks;              long availSize = blockSize * availableBlocks;              totalStr = Formatter.formatFileSize(context, totalSize);              availStr = Formatter.formatFileSize(context, availSize);              return "手机内存总大小为:" + totalStr + "可用空间为:" + availStr;          }      }