本文实例讲述了Android编程实现获得内存剩余大小与总大小的方法。分享给大家供大家参考，具体如下：
|
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
|
public class memInfo { // 获得可用的内存 public static long getmem_UNUSED(Context mContext) { long MEM_UNUSED; // 得到ActivityManager ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); // 创建ActivityManager.MemoryInfo对象 ActivityManager.MemoryInfo mi = new ActivityManager.MemoryInfo(); am.getMemoryInfo(mi); // 取得剩余的内存空间 MEM_UNUSED = mi.availMem / 1024; return MEM_UNUSED; } // 获得总内存 public static long getmem_TOLAL() { long mTotal; // /proc/meminfo读出的内核信息进行解释 String path = "/proc/meminfo"; String content = null; BufferedReader br = null; try { br = new BufferedReader(new FileReader(path), 8); String line; if ((line = br.readLine()) != null) { content = line; } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { if (br != null) { try { br.close(); } catch (IOException e) { e.printStackTrace(); } } } // beginIndex int begin = content.indexOf(':'); // endIndex int end = content.indexOf('k'); // 截取字符串信息 content = content.substring(begin + 1, end).trim(); mTotal = Integer.parseInt(content); return mTotal; }} |
希望本文所述对大家Android程序设计有所帮助。
