1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | public class TaskUtils { /** * 获取正在运行的进程的个数 * * @param context * @return */ public static int getRunningProcessCount(Context context) { // 得到系统的任务管理器. ActivityManager am = (ActivityManager) context .getSystemService(Context.ACTIVITY_SERVICE); return am.getRunningAppProcesses().size(); } /** * 获取手机的可用内存 * * @param context * @return long类型数据 总的可用内存 */ public static long getAvailRam(Context context) { ActivityManager am = (ActivityManager) context .getSystemService(Context.ACTIVITY_SERVICE); ActivityManager.MemoryInfo outInfo = new MemoryInfo(); am.getMemoryInfo(outInfo); return outInfo.availMem; } /** * 获取手机的总内存 * * @return */ public static long getTotalRam() { try { File file = new File("/proc/meminfo"); FileInputStream fis = new FileInputStream(file); BufferedReader br = new BufferedReader(new InputStreamReader(fis)); // MemTotal: 253604 kB String result = br.readLine(); StringBuffer sb = new StringBuffer(); char[] chars = result.toCharArray(); for (char c : chars) { if (c >= '0' && c <= '9') { sb.append(c); } } return Long.parseLong(sb.toString()) * 1024; } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); return 0; } } } |
