android怎么获取当前应用程序所占用的内存空间
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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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