android获取手机内存空间大小

 /**
     * 获取手机内部可用空间大小
     * @return
     */
    static public long getAvailableInternalMemorySize() {
        File path = Environment.getDataDirectory();
        StatFs stat = new StatFs(path.getPath());
        long blockSize = stat.getBlockSize();
        long availableBlocks = stat.getAvailableBlocks();
        return availableBlocks * blockSize;
    }

<pre name="code" class="java" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: pre-wrap; word-wrap: break-word; color: rgb(57, 57, 57); font-size: 14px; line-height: 21px; background-color: rgb(250, 247, 239);">/**
     * 获取手机内部空间大小
     * @return
     */
    static public long getTotalInternalMemorySize() {
        File path = Environment.getDataDirectory();//Gets the Android data directory
        StatFs stat = new StatFs(path.getPath());
        long blockSize = stat.getBlockSize();      //每个block 占字节数
        long totalBlocks = stat.getBlockCount();   //block总数
        return totalBlocks * blockSize;
    }

其实关键还是在<span style="background-color: rgb(240, 240, 240); font-family: Arial, Helvetica, sans-serif;">StatFs这个类</span>