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;

}

}