问题小结（7）-sd卡和/data分区使用情况检测

package com.schogini.dhcp;

import java.io.File;

import android.content.Context;
import android.os.Environment;
import android.os.StatFs;

public class CheckStore {
private static String notice;

public static String checkSD(Context contect){

File data=Environment.getDataDirectory();	//获得data的路径
StatFs data_stat=new StatFs(data.getPath()); //创建StatFs对象
long data_blockSize=data_stat.getBlockSize(); //获取block的size
float data_totalBlocks=data_stat.getBlockCount();//获取block的个数
int data_sizeInMb=(int)(data_blockSize*data_totalBlocks)/1024/1024;//计算总容量
long data_availableBlocks=data_stat.getAvailableBlocks(); //获取可用block的个数
float data_percent=(int)(data_blockSize*data_availableBlocks)/1024/1024;//计算可用容量
notice="FLASH使用情况：\n总容量："+data_sizeInMb+"M.\n已用:"+(data_sizeInMb-data_percent+"\n可用:"+data_percent+"M.");

if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){
File filePath=Environment.getExternalStorageDirectory();    //获得sd 卡的路径

StatFs stat=new StatFs(filePath.getPath());                 //创建StatFs对象
long blockSize=stat.getBlockSize();                         //获取block的size
float totalBlocks=stat.getBlockCount();                     //获取block的个数
int sizeInMb =(int)(blockSize*totalBlocks)/1024/1024;       //计算总容量
long availableBlocks=stat.getAvailableBlocks();             //可用block的个数
float percent=(int)(blockSize*availableBlocks)/1024/1024;              //计算可用容量

notice=notice+"\nSD卡使用情况：\n总容量："+sizeInMb+"M.\n已用："+(sizeInMb-percent+"M\n可用:"+percent+"M.");
return 	notice;
}
else{
notice=notice+"\nSD卡使用情况：未插入SD卡";
return notice;
}

}
}