Android之获取SD卡总容量，可用大小，机身内存总容量及可用大小的系统方法

最新推荐文章于 2025-09-10 11:40:21 发布

yingangcwj

最新推荐文章于 2025-09-10 11:40:21 发布

阅读量261

点赞数

分类专栏： Android 文章标签：移动开发

Android 专栏收录该内容

181 篇文章

订阅专栏

本文介绍如何在Android应用中获取SD卡总大小、可用容量、机身内存总大小及可用内存，包括代码实现和使用方法。


/**
	 * 获得SD卡总大小
	 * 
	 * @return
	 */
	private String getSDTotalSize() {
		File path = Environment.getExternalStorageDirectory();
		StatFs stat = new StatFs(path.getPath());
		long blockSize = stat.getBlockSize();
		long totalBlocks = stat.getBlockCount();
		return Formatter.formatFileSize(MainActivity.this, blockSize * totalBlocks);
	}

	/**
	 * 获得sd卡剩余容量，即可用大小
	 * 
	 * @return
	 */
	private String getSDAvailableSize() {
		File path = Environment.getExternalStorageDirectory();
		StatFs stat = new StatFs(path.getPath());
		long blockSize = stat.getBlockSize();
		long availableBlocks = stat.getAvailableBlocks();
		return Formatter.formatFileSize(MainActivity.this, blockSize * availableBlocks);
	}

	/**
	 * 获得机身内存总大小
	 * 
	 * @return
	 */
	private String getRomTotalSize() {
		File path = Environment.getDataDirectory();
		StatFs stat = new StatFs(path.getPath());
		long blockSize = stat.getBlockSize();
		long totalBlocks = stat.getBlockCount();
		return Formatter.formatFileSize(MainActivity.this, blockSize * totalBlocks);
	}

	/**
	 * 获得机身可用内存
	 * 
	 * @return
	 */
	private String getRomAvailableSize() {
		File path = Environment.getDataDirectory();
		StatFs stat = new StatFs(path.getPath());
		long blockSize = stat.getBlockSize();
		long availableBlocks = stat.getAvailableBlocks();
		return Formatter.formatFileSize(MainActivity.this, blockSize * availableBlocks);
	}