안드로이드 내부 저장소 용량 구하기

내부 저장소 용량 구하기.

1. 총 용량

public static String getLocalTotalMemory() {
    File path = Environment.getDataDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = 0;
    long totalBlocks = 0;
    if(Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
        blockSize = stat.getBlockSizeLong();
        totalBlocks = stat.getBlockCountLong();
    } else {
        blockSize = stat.getBlockSize();
        totalBlocks = stat.getBlockCount();
    }
    return  formatMemorySize(totalBlocks * blockSize);
}

2. 사용가능한 용량

public static String getCurrentRemainLocalMemory() {
    File path = Environment.getDataDirectory();
    StatFs stat = new StatFs(path.getPath());
    long blockSize = 0;
    long availableBlocks = 0;
    if(Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
        blockSize = stat.getBlockSizeLong();
        availableBlocks = stat.getAvailableBlocksLong();
    } else {
        blockSize = stat.getBlockSize();
        availableBlocks = stat.getAvailableBlocks();
    }

    return formatMemorySize(availableBlocks * blockSize);
}

3. 용량의 단위 정하기

public static String formatMemorySize(long memory) {
    String suffix = null;

    double size = 0;

    if(memory >= 1024){
        suffix = "_KB";
        size = (double) (memory / 1024);

        if(size >= 1024) {
            suffix = "_MB";
            size = (double) (size / 1024);

            if(size >= 1024) {
                suffix = "_GB";
                size = (double) (size / 1024);
            }
        }
    }

    size = Math.round(size * 10d)/10d;

    StringBuilder resultBuffer = new StringBuilder(Double.toString(size));

    if(suffix != null){
        resultBuffer.append(suffix);
    }

    return resultBuffer.toString();
}