CommetryUtils.java
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package com.ectrip.cyt.utils;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.List;
import android.app.ActivityManager;
import android.app.ActivityManager.MemoryInfo;
import android.content.Context;
import android.os.Build;
import android.util.Log;
public class CommetryUtils {
public static void releaseCommery(Context context) throws Exception{
ActivityManager activityManger = (ActivityManager) context
.getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningAppProcessInfo> list = activityManger
.getRunningAppProcesses();
if (list != null)
for (int i = 0; i < list.size(); i++) {
ActivityManager.RunningAppProcessInfo apinfo = list.get(i);
System.out.println("pid " + apinfo.pid);
System.out.println("processName "
+ apinfo.processName);
System.out
.println("importance " + apinfo.importance);
String[] pkgList = apinfo.pkgList;
if (apinfo.importance > ActivityManager.RunningAppProcessInfo.IMPORTANCE_SERVICE) {
// Process.killProcess(apinfo.pid);
for (int j = 0; j < pkgList.length; j++) {
// 2.2以上是过时的,请用killBackgroundProcesses代替
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.GINGERBREAD) { // TODO:如果当前版本小于HONEYCOMB版本，即3.0版本
activityManger.restartPackage(pkgList[j]);
} else {
activityManger.killBackgroundProcesses(pkgList[j]);
}
}
}
}
}
private long getAvailMemory(Context context)
{
// 获取android当前可用内存大小
ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
MemoryInfo mi = new MemoryInfo();
am.getMemoryInfo(mi);
//mi.availMem; 当前系统的可用内存
//return Formatter.formatFileSize(context, mi.availMem);// 将获取的内存大小规格化
return mi.availMem/(1024*1024);
}
private long getTotalMemory(Context context)
{
String str1 = "/proc/meminfo";// 系统内存信息文件
String str2;
String[] arrayOfString;
long initial_memory = 0;
try
{
FileReader localFileReader = new FileReader(str1);
BufferedReader localBufferedReader = new BufferedReader(
localFileReader, 8192);
str2 = localBufferedReader.readLine();// 读取meminfo第一行，系统总内存大小
arrayOfString = str2.split("\\s+");
for (String num : arrayOfString) {
Log.i(str2, num + "\t");
}
initial_memory = Integer.valueOf(arrayOfString[1]).intValue() * 1024;// 获得系统总内存，单位是KB，乘以1024转换为Byte
localBufferedReader.close();
} catch (IOException e) {
}
//return Formatter.formatFileSize(context, initial_memory);// Byte转换为KB或者MB，内存大小规格化
return initial_memory/(1024*1024);
}
}