
但是如果被读取的进程也是你制作的话 那就有办法了
你可以考虑使用aidl 来实现跨应用的数据交互/接口调用
File root = Environment.getRootDirectory()StatFs sf = new StatFs(root.getPath())
long blockSize = sf.getBlockSize()
long blockCount = sf.getBlockCount()
long availCount = sf.getAvailableBlocks()
Log.d("TAG", "block大小:" + blockSize + ",block数目:" + blockCount + ",总大小:"+ blockSize * blockCount / (1024 * 1024) + "MB")
Log.d("TAG","可用的block数目::" + availCount + ",可用大小:" + availCount * blockSize / (1024 * 1024)+ "MB")
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