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。