本文实例讲述了Android获取SD卡及手机ROM容量的方法。分享给大家供大家参考，具体如下：

这里通过一个简单的小例子，来获取SD卡的容量和手机ROM的容量，代码如下：

package com.urovo.sdcardspace;

import java.io.File;

import android.os.Bundle;

import android.os.Environment;

import android.os.StatFs;

import android.app.Activity;

import android.text.format.Formatter;

import android.view.Menu;

import android.widget.TextView;

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

TextView tv = (TextView) findViewById(R.id.tv);

File path = Environment.getExternalStorageDirectory();//得到SD卡的路径

StatFs stat = new StatFs(path.getPath());//创建StatFs对象，用来获取文件系统的状态

long blockCount = stat.getBlockCount();

long blockSize = stat.getBlockSize();

long availableBlocks = stat.getAvailableBlocks();

String totalSize = Formatter.formatFileSize(getApplicationContext(), blockCount*blockSize);//格式化获得SD卡总容量

String availableSize = Formatter.formatFileSize(getApplicationContext(), blockCount*availableBlocks);//获得SD卡可用容量

tv.setText("SD卡总容量:"+totalSize+"\nSD卡可用容量:"+availableSize+"\n"+getRomSpace());

}

private String getRomSpace() {

File path = Environment.getDataDirectory();

StatFs stat = new StatFs(path.getPath());

long blockCount = stat.getBlockCount();

long blockSize = stat.getBlockSize();

long availableBlocks = stat.getAvailableBlocks();

String totalSize = Formatter.formatFileSize(getApplicationContext(), blockCount*blockSize);

String availableSize = Formatter.formatFileSize(getApplicationContext(), blockCount*availableBlocks);

return "手机Rom总容量:"+totalSize+"\n手机Rom可用容量:"+availableSize;

}

}

具体的内容，可以通过分析android settings部分的源码，来加深了解。

希望本文所述对大家Android程序设计有所帮助。