android 获取手机和SD卡可用内存
import java.io.File;
import android.os.Environment;
import android.os.StatFs;
/*
* 手机和SD卡内存获取
*
* */
public class MemoryManager
{
//获取手机可用的内存空间 返回 单位 M
public float getMemorySize()
{
File path = Environment.getDataDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long availableBlocks = stat.getAvailableBlocks();
return (availableBlocks * blockSize)*1.0f/(1024*1024);
}
//获取手机可用的内存空间 返回 单位 G
public float getSDSize()
{
String state = Environment.getExternalStorageState();
//SD卡不可用
if (!Environment.MEDIA_MOUNTED.equals(state))
{
return -1;
}
File path = Environment.getExternalStorageDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long availableBlocks = stat.getAvailableBlocks();
return (availableBlocks * blockSize)*1.0f/(1024*1024*1024);
}
}
摘自 qq1761310972
补充：移动开发 , Android ,
