Android 获取手机Ram 和 Rom大小

Android 获取手机Ram 和 Rom大小

项目场景:

在设置模块,工模测试模块中,经常需要查看手机设备的配置信息,比如RAM 和 ROM大小,RAM 我们可以通过读取/proc/meminfo 表里面的信息获得, ROM可以通过计算获取精确的内存大小bit值,但是手机中实际显示的时候一般为 32GB, 64GB,128GB,这里就需要我们稍微变动一下,这里通过代码实现,如下:

解决方案:

1. 获取Ram大小

//RAM内存大小, 返回1GB/2GB/3GB/4GB/8G/16G

public static String getTotalRam(){

String path = "/proc/meminfo";

String ramMemorySize = null;

int totalRam = 0 ;

try{

FileReader fileReader = new FileReader(path);

BufferedReader br = new BufferedReader(fileReader, 4096);

ramMemorySize = br.readLine().split("\\s+")[1];

br.close();

}catch (Exception e){

e.printStackTrace();

}

if(ramMemorySize != null){

totalRam = (int)Math.ceil((new Float(Float.valueOf(ramMemorySize) / (1024 * 1024)).doubleValue()));

}

return totalRam + "GB";

}

2. 获取Rom大小

//ROM内存大小,返回 64G/128G/256G/512G

private static String getTotalRom() {

File dataDir = Environment.getDataDirectory();

StatFs stat = new StatFs(dataDir.getPath());

long blockSize = stat.getBlockSizeLong();

long totalBlocks = stat.getBlockCountLong();

long size = totalBlocks * blockSize;

long GB = 1024 * 1024 * 1024;

final long[] deviceRomMemoryMap = {2*GB, 4*GB, 8*GB, 16*GB, 32*GB, 64*GB, 128*GB, 256*GB, 512*GB, 1024*GB, 2048*GB};

String[] displayRomSize = {"2GB","4GB","8GB","16GB","32GB","64GB","128GB","256GB","512GB","1024GB","2048GB"};

int i;

for(i = 0 ; i < deviceRomMemoryMap.length; i++) {

if(size <= deviceRomMemoryMap[i]) {

break;

}

if(i == deviceRomMemoryMap.length) {

i--;

}

}

return displayRomSize[i];

}

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