public MemResource getResource(Context context) {
ActivityManager activityManager = (ActivityManager) context.getSystemService(context.ACTIVITY_SERVICE);
ActivityManager.MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();
activityManager.getMemoryInfo(memoryInfo);
MemResource meminfo = new MemResource();
meminfo.setTotal(memoryInfo.totalMem);
meminfo.setAvail(memoryInfo.availMem);
return meminfo;
}
public class MemResource {
private long avail;
private long total;
public String getAvail() {
return changeHumanValue(avail);
}
public void setAvail(long avail) {
this.avail = avail;
}
public String getTotal() {
return changeHumanValue(total);
}
public void setTotal(long total) {
this.total = total;
}
private String changeHumanValue(long value) {
String humanValue;
value = (int)(value / (1000 * 1000));
if (value > 1024) {
humanValue = (int)(value / 1024) + "";
humanValue += "." + value % 1024 + "G";
} else {
humanValue = value + "M";
}
return humanValue;
}
}
public CpuResource getResource(long updatePeriod) {
try {
RandomAccessFile reader = new RandomAccessFile("/proc/stat", "r");
String load = reader.readLine();
String[] toks = load.split("[ ]+");
float userMode1 = Float.parseFloat(toks[1]);
float niceMode1 = Float.parseFloat(toks[2]);
float systemMode1 = Float.parseFloat(toks[3]);
float idleMode1 = Float.parseFloat(toks[4]);
try {
Thread.sleep(updatePeriod);
} catch (Exception e) {}
reader.seek(0);
load = reader.readLine();
reader.close();
toks = load.split("[ ]+");
float userMode2 = Float.parseFloat(toks[1]);
float niceMode2 = Float.parseFloat(toks[2]);
float systemMode2 = Float.parseFloat(toks[3]);
float idleMode2 = Float.parseFloat(toks[4]);
float userMode = userMode2 - userMode1;
float niceMode = niceMode2 - niceMode1;
float systemMode = systemMode2 - systemMode1;
float idleMode = idleMode2 - idleMode1;
float total = userMode + niceMode + systemMode + idleMode;
float user = (userMode / total) * 100;
float system = (systemMode / total) * 100;
} catch (IOException e) {
Log.e(LOG_NAME, e.getMessage());
} catch (Exception e) {
Log.e(LOG_NAME, e.getMessage());
}
return user+system;
}
