Android 设备信息获取详解

一、 获取手机基本信息(厂商、型号等参数)

以小米手机为例,手机常用的基本信息可以在Settings--> About Phone中看到,
例如下图:

那么如何获取这些设备信息呢? Android中 通常通过 android.os.Build类方法可以获取更多手机设备信息。

二、 设备信息获取实现图

获取手机IMEI、宽、高、是否有SD卡,RAM、ROM、SD卡、是否联网、网络类型

默认语言,设备名,型号、厂商、Fingerprint、Android 版本、SDK版本、Google 安全patch、发布时间、版本类型、用户名

三、 获取手机设备 宽、高、IMEI 信息方法

获取手机宽、高、IMEI信息方法如下:

    /**
     * 获取设备宽度(px)
     * 
     */
    public static int getDeviceWidth(Context context) {
        return context.getResources().getDisplayMetrics().widthPixels;
    }
 
    /**
     * 获取设备高度(px)
     */
    public static int getDeviceHeight(Context context) {
        return context.getResources().getDisplayMetrics().heightPixels;
    }
 
    /**
     * 获取设备的唯一标识, 需要 “android.permission.READ_Phone_STATE”权限
     */
    public static String getIMEI(Context context) {
        TelephonyManager tm = (TelephonyManager) context
                .getSystemService(Context.TELEPHONY_SERVICE);
        String deviceId = tm.getDeviceId();
        if (deviceId == null) {
            return "UnKnown";
        } else {
            return deviceId;
        }
    }

注意:获取IMEI 需要获取手机状态权限

 <!-- 读取手机IMEI的设备权限 -->
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />

如果是Android 6.0 之后的代码请使用动态申请权限的方法申请权限,否认会报安全异常的错误SecurityException,进而导致运行报错。

如需了解更多 系统安全权限的内容,请看 之前写的文章 Android 系统权限使用详解

四、 获取手机厂商名、产品名、手机品牌、手机型号、主板名、设备名的方法

获取手机厂商名、产品名、手机品牌、手机型号、主板名、设备名的方法如下:

    /**
     * 获取厂商名
     * **/
    public static String getDeviceManufacturer() {
        return android.os.Build.MANUFACTURER;
    }
 
    /**
     * 获取产品名
     * **/
    public static String getDeviceProduct() {
        return android.os.Build.PRODUCT;
    }
 
    /**
     * 获取手机品牌
     */
    public static String getDeviceBrand() {
        return android.os.Build.BRAND;
    }
 
    /**
     * 获取手机型号
     */
    public static String getDeviceModel() {
        return android.os.Build.MODEL;
    }
 
    /**
     * 获取手机主板名
     */
    public static String getDeviceBoard() {
        return android.os.Build.BOARD;
    }
 
    /**
     * 设备名
     * **/
    public static String getDeviceDevice() {
        return android.os.Build.DEVICE;
    }
 
    /**
     * 
     * 
     * fingerprit 信息
     * **/
    public static String getDeviceFubgerprint() {
        return android.os.Build.FINGERPRINT;
    }

五、 获取手机硬件名、SDK版本、android版本 、语言支持、默认语言等方法

获取手机硬件名、SDK版本android版本 、语言支持、默认语言等方法如下:

    /**
     * 硬件名
     * 
     * **/
    public static String getDeviceHardware() {
        return android.os.Build.HARDWARE;
    }
 
    /**
     * 主机
     * 
     * **/
    public static String getDeviceHost() {
        return android.os.Build.HOST;
    }
 
    /**
     * 
     * 显示ID
     * **/
    public static String getDeviceDisplay() {
        return android.os.Build.DISPLAY;
    }
 
    /**
     * ID
     * 
     * **/
    public static String getDeviceId() {
        return android.os.Build.ID;
    }
 
    /**
     * 获取手机用户名
     * 
     * **/
    public static String getDeviceUser() {
        return android.os.Build.USER;
    }
 
    /**
     * 获取手机 硬件序列号
     * **/
    public static String getDeviceSerial() {
        return android.os.Build.SERIAL;
    }
 
    /**
     * 获取手机Android 系统SDK
     * 
     * @return
     */
    public static int getDeviceSDK() {
        return android.os.Build.VERSION.SDK_INT;
    }
 
    /**
     * 获取手机Android 版本
     * 
     * @return
     */
    public static String getDeviceAndroidVersion() {
        return android.os.Build.VERSION.RELEASE;
    }
 
    /**
     * 获取当前手机系统语言。
     */
    public static String getDeviceDefaultLanguage() {
        return Locale.getDefault().getLanguage();
    }
 
    /**
     * 获取当前系统上的语言列表(Locale列表)
     */
    public static String getDeviceSupportLanguage() {
        Log.e("wangjie", "Local:" + Locale.GERMAN);
        Log.e("wangjie", "Local:" + Locale.ENGLISH);
        Log.e("wangjie", "Local:" + Locale.US);
        Log.e("wangjie", "Local:" + Locale.CHINESE);
        Log.e("wangjie", "Local:" + Locale.TAIWAN);
        Log.e("wangjie", "Local:" + Locale.FRANCE);
        Log.e("wangjie", "Local:" + Locale.FRENCH);
        Log.e("wangjie", "Local:" + Locale.GERMANY);
        Log.e("wangjie", "Local:" + Locale.ITALIAN);
        Log.e("wangjie", "Local:" + Locale.JAPAN);
        Log.e("wangjie", "Local:" + Locale.JAPANESE);
        return Locale.getAvailableLocales().toString();
    }
 

六、 获取 SD 卡存储信息

1.判断SD是否挂载方法

判断SD是否挂载方法如下:

    /**
     * 判断SD是否挂载
     */
    public static boolean isSDCardMount() {
        return Environment.getExternalStorageState().equals(
                Environment.MEDIA_MOUNTED);
    }

2. 获取SD 存储信息的方法

获取SD 存储信息的方法如下:

/**
     * 获取手机存储 ROM 信息
     * 
     * type:用于区分内置存储于外置存储的方法
     * 
     * 内置SD卡 :INTERNAL_STORAGE = 0;
     * 
     * 外置SD卡:EXTERNAL_STORAGE = 1;
     * **/
    public static String getStorageInfo(Context context, int type) {
 
        String path = getStoragePath(context, type);
        /**
         * 无外置SD 卡判断
         * **/
        if (isSDCardMount() == false || TextUtils.isEmpty(path) || path == null) {
            return "无外置SD卡";
        }
 
        File file = new File(path);
        StatFs statFs = new StatFs(file.getPath());
        String stotageInfo;
 
        long blockCount = statFs.getBlockCountLong();
        long bloackSize = statFs.getBlockSizeLong();
        long totalSpace = bloackSize * blockCount;
 
        long availableBlocks = statFs.getAvailableBlocksLong();
        long availableSpace = availableBlocks * bloackSize;
 
        stotageInfo = "可用/总共:"
                + Formatter.formatFileSize(context, availableSpace) + "/"
                + Formatter.formatFileSize(context, totalSpace);
 
        return stotageInfo;
 
    }

3. 获取手机ROM (内置存储,外置存储)存储路径的方法

获取手机ROM 存储信息的方法如下:

/**
     * 使用反射方法 获取手机存储路径
     * 
     * **/
    public static String getStoragePath(Context context, int type) {
 
        StorageManager sm = (StorageManager) context
                .getSystemService(Context.STORAGE_SERVICE);
        try {
            Method getPathsMethod = sm.getClass().getMethod("getVolumePaths",
                    null);
            String[] path = (String[]) getPathsMethod.invoke(sm, null);
 
            switch (type) {
            case INTERNAL_STORAGE:
                return path[type];
            case EXTERNAL_STORAGE:
                if (path.length > 1) {
                    return path[type];
                } else {
                    return null;
                }
 
            default:
                break;
            }
 
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
 
    /**
     * 获取 手机 RAM 信息 方法 一
     * */
    public static String getTotalRAM(Context context) {
        long size = 0;
        ActivityManager activityManager = (ActivityManager) context
                .getSystemService(context.ACTIVITY_SERVICE);
        MemoryInfo outInfo = new MemoryInfo();
        activityManager.getMemoryInfo(outInfo);
        size = outInfo.totalMem;
 
        return Formatter.formatFileSize(context, size);
    }
 
    /**
     * 手机 RAM 信息 方法 二
     * */
    public static String getTotalRAMOther(Context context) {
        String path = "/proc/meminfo";
        String firstLine = null;
        int totalRam = 0;
        try {
            FileReader fileReader = new FileReader(path);
            BufferedReader br = new BufferedReader(fileReader, 8192);
            firstLine = br.readLine().split("\s+")[1];
            br.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        if (firstLine != null) {
 
            totalRam = (int) Math.ceil((new Float(Float.valueOf(firstLine)
                    / (1024 * 1024)).doubleValue()));
 
            long totalBytes = 0;
 
        }
 
        return Formatter.formatFileSize(context, totalRam);
    }
 
    /**
     * 获取 手机 可用 RAM
     * */
    public static String getAvailableRAM(Context context) {
        long size = 0;
        ActivityManager activityManager = (ActivityManager) context
                .getSystemService(context.ACTIVITY_SERVICE);
        MemoryInfo outInfo = new MemoryInfo();
        activityManager.getMemoryInfo(outInfo);
        size = outInfo.availMem;
 
        return Formatter.formatFileSize(context, size);
    }

七、获取手机 RAM、ROM存储信息

1.RAM:

运行时内存,此大小直接决定手机运行的流畅度,相当于电脑内存。

2.ROM :

手机存储(分内置SD卡,外置SD卡),此大小直接决定着手机可以存储资源的大小,相当于电脑硬盘。

3.获取 RAM存储信息的方法如下:

    /**
     * 获取 手机 RAM 信息
     * */
    public static String getRAMInfo(Context context) {
        long totalSize = 0;
        long availableSize = 0;
 
        ActivityManager activityManager = (ActivityManager) context
                .getSystemService(context.ACTIVITY_SERVICE);
 
        MemoryInfo memoryInfo = new MemoryInfo();
        activityManager.getMemoryInfo(memoryInfo);
        totalSize = memoryInfo.totalMem;
        availableSize = memoryInfo.availMem;
 
        return "可用/总共:" + Formatter.formatFileSize(context, availableSize)
                + "/" + Formatter.formatFileSize(context, totalSize);
    }

4. 获取手机ROM存储信息的方法如下:

/**
     * 获取手机存储 ROM 信息
     * 
     * type:用于区分内置存储于外置存储的方法
     * 
     * 内置SD卡 :INTERNAL_STORAGE = 0;
     * 
     * 外置SD卡:EXTERNAL_STORAGE = 1;
     * **/
    public static String getStorageInfo(Context context, int type) {
 
        String path = getStoragePath(context, type);
        /**
         * 无外置SD 卡判断
         * **/
        if (isSDCardMount() == false || TextUtils.isEmpty(path) || path == null) {
            return "无外置SD卡";
        }
 
        File file = new File(path);
        StatFs statFs = new StatFs(file.getPath());
        String stotageInfo;
 
        long blockCount = statFs.getBlockCountLong();
        long bloackSize = statFs.getBlockSizeLong();
        long totalSpace = bloackSize * blockCount;
 
        long availableBlocks = statFs.getAvailableBlocksLong();
        long availableSpace = availableBlocks * bloackSize;
 
        stotageInfo = "可用/总共:"
                + Formatter.formatFileSize(context, availableSpace) + "/"
                + Formatter.formatFileSize(context, totalSpace);
 
        return stotageInfo;
 
    }

八、DeviceInfoUtils 封装类

为了方便查询使用设备信息,小编已经封装成一个Utils类。代码如下:

package com.programandroid.Utils;
 
import java.util.Locale;
 
import android.R.string;
import android.content.Context;
import android.telephony.TelephonyManager;
import android.util.Log;
 
/*
 * DeviceInfoUtils.java
 *
 *  Created on: 2017-11-16
 *      Author: wangjie
 * 
 *  Welcome attention to weixin public number get more info
 *
 *  WeiXin Public Number : ProgramAndroid
 *  微信公众号 :程序员Android
 *
 */
public class DeviceInfoUtils {
 
    /**
     * 获取设备宽度(px)
     * 
     */
    public static int getDeviceWidth(Context context) {
        return context.getResources().getDisplayMetrics().widthPixels;
    }
 
    /**
     * 获取设备高度(px)
     */
    public static int getDeviceHeight(Context context) {
        return context.getResources().getDisplayMetrics().heightPixels;
    }
 
    /**
     * 获取设备的唯一标识, 需要 “android.permission.READ_Phone_STATE”权限
     */
    public static String getIMEI(Context context) {
        TelephonyManager tm = (TelephonyManager) context
                .getSystemService(Context.TELEPHONY_SERVICE);
        String deviceId = tm.getDeviceId();
        if (deviceId == null) {
            return "UnKnown";
        } else {
            return deviceId;
        }
    }
 
    /**
     * 获取厂商名
     * **/
    public static String getDeviceManufacturer() {
        return android.os.Build.MANUFACTURER;
    }
 
    /**
     * 获取产品名
     * **/
    public static String getDeviceProduct() {
        return android.os.Build.PRODUCT;
    }
 
    /**
     * 获取手机品牌
     */
    public static String getDeviceBrand() {
        return android.os.Build.BRAND;
    }
 
    /**
     * 获取手机型号
     */
    public static String getDeviceModel() {
        return android.os.Build.MODEL;
    }
 
    /**
     * 获取手机主板名
     */
    public static String getDeviceBoard() {
        return android.os.Build.BOARD;
    }
 
    /**
     * 设备名
     * **/
    public static String getDeviceDevice() {
        return android.os.Build.DEVICE;
    }
 
    /**
     * 
     * 
     * fingerprit 信息
     * **/
    public static String getDeviceFubgerprint() {
        return android.os.Build.FINGERPRINT;
    }
 
    /**
     * 硬件名
     * 
     * **/
    public static String getDeviceHardware() {
        return android.os.Build.HARDWARE;
    }
 
    /**
     * 主机
     * 
     * **/
    public static String getDeviceHost() {
        return android.os.Build.HOST;
    }
 
    /**
     * 
     * 显示ID
     * **/
    public static String getDeviceDisplay() {
        return android.os.Build.DISPLAY;
    }
 
    /**
     * ID
     * 
     * **/
    public static String getDeviceId() {
        return android.os.Build.ID;
    }
 
    /**
     * 获取手机用户名
     * 
     * **/
    public static String getDeviceUser() {
        return android.os.Build.USER;
    }
 
    /**
     * 获取手机 硬件序列号
     * **/
    public static String getDeviceSerial() {
        return android.os.Build.SERIAL;
    }
 
    /**
     * 获取手机Android 系统SDK
     * 
     * @return
     */
    public static int getDeviceSDK() {
        return android.os.Build.VERSION.SDK_INT;
    }
 
    /**
     * 获取手机Android 版本
     * 
     * @return
     */
    public static String getDeviceAndroidVersion() {
        return android.os.Build.VERSION.RELEASE;
    }
 
    /**
     * 获取当前手机系统语言。
     */
    public static String getDeviceDefaultLanguage() {
        return Locale.getDefault().getLanguage();
    }
 
    /**
     * 获取当前系统上的语言列表(Locale列表)
     */
    public static String getDeviceSupportLanguage() {
        Log.e("wangjie", "Local:" + Locale.GERMAN);
        Log.e("wangjie", "Local:" + Locale.ENGLISH);
        Log.e("wangjie", "Local:" + Locale.US);
        Log.e("wangjie", "Local:" + Locale.CHINESE);
        Log.e("wangjie", "Local:" + Locale.TAIWAN);
        Log.e("wangjie", "Local:" + Locale.FRANCE);
        Log.e("wangjie", "Local:" + Locale.FRENCH);
        Log.e("wangjie", "Local:" + Locale.GERMANY);
        Log.e("wangjie", "Local:" + Locale.ITALIAN);
        Log.e("wangjie", "Local:" + Locale.JAPAN);
        Log.e("wangjie", "Local:" + Locale.JAPANESE);
        return Locale.getAvailableLocales().toString();
    }
 
    public static String getDeviceAllInfo(Context context) {
 
        return "

1. IMEI:
		" + getIMEI(context)
 
        + "

2. 设备宽度:
		" + getDeviceWidth(context)
 
        + "

3. 设备高度:
		" + getDeviceHeight(context)
 
        + "

4. 是否有内置SD卡:
		" + SDCardUtils.isSDCardMount()
 
        + "

5. RAM 信息:
		" + SDCardUtils.getRAMInfo(context)
 
        + "

6. 内部存储信息
		" + SDCardUtils.getStorageInfo(context, 0)
 
        + "

7. SD卡 信息:
		" + SDCardUtils.getStorageInfo(context, 1)
 
        + "

8. 是否联网:
		" + Utils.isNetworkConnected(context)
 
        + "

9. 网络类型:
		" + Utils.GetNetworkType(context)
 
        + "

10. 系统默认语言:
		" + getDeviceDefaultLanguage()
 
        + "

11. 硬件序列号(设备名):
		" + android.os.Build.SERIAL
 
        + "

12. 手机型号:
		" + android.os.Build.MODEL
 
        + "

13. 生产厂商:
		" + android.os.Build.MANUFACTURER
 
        + "

14. 手机Fingerprint标识:
		" + android.os.Build.FINGERPRINT
 
        + "

15. Android 版本:
		" + android.os.Build.VERSION.RELEASE
 
        + "

16. Android SDK版本:
		" + android.os.Build.VERSION.SDK_INT
 
        + "

17. 安全patch 时间:
		" + android.os.Build.VERSION.SECURITY_PATCH
 
        + "

18. 发布时间:
		" + Utils.Utc2Local(android.os.Build.TIME)
 
        + "

19. 版本类型:
		" + android.os.Build.TYPE
 
        + "

20. 用户名:
		" + android.os.Build.USER
 
        + "

21. 产品名:
		" + android.os.Build.PRODUCT
 
        + "

22. ID:
		" + android.os.Build.ID
 
        + "

23. 显示ID:
		" + android.os.Build.DISPLAY
 
        + "

24. 硬件名:
		" + android.os.Build.HARDWARE
 
        + "

25. 产品名:
		" + android.os.Build.DEVICE
 
        + "

26. Bootloader:
		" + android.os.Build.BOOTLOADER
 
        + "

27. 主板名:
		" + android.os.Build.BOARD
 
        + "

28. CodeName:
		" + android.os.Build.VERSION.CODENAME
                + "

29. 语言支持:
		" + getDeviceSupportLanguage();
 
    }
}
 

九、SDCardUtils 封装类

为了方便查询使用设备信息,小编已经封装成一个Utils类。代码如下:

package com.programandroid.Utils;
 
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.lang.reflect.Method;
 
import android.app.ActivityManager;
import android.app.ActivityManager.MemoryInfo;
import android.content.Context;
import android.os.Build;
import android.os.Environment;
import android.os.StatFs;
import android.os.storage.StorageManager;
import android.text.TextUtils;
import android.text.format.Formatter;
 
/*
 * SDCardUtils.java
 *
 *  Created on: 2017-11-22
 *      Author: wangjie
 * 
 *  Welcome attention to weixin public number get more info
 *
 *  WeiXin Public Number : ProgramAndroid
 *  微信公众号 :程序员Android
 *
 */
public class SDCardUtils {
 
    private static final int INTERNAL_STORAGE = 0;
    private static final int EXTERNAL_STORAGE = 1;
 
    /**
     * 获取 手机 RAM 信息
     * */
    public static String getRAMInfo(Context context) {
        long totalSize = 0;
        long availableSize = 0;
 
        ActivityManager activityManager = (ActivityManager) context
                .getSystemService(context.ACTIVITY_SERVICE);
 
        MemoryInfo memoryInfo = new MemoryInfo();
        activityManager.getMemoryInfo(memoryInfo);
        totalSize = memoryInfo.totalMem;
        availableSize = memoryInfo.availMem;
 
        return "可用/总共:" + Formatter.formatFileSize(context, availableSize)
                + "/" + Formatter.formatFileSize(context, totalSize);
    }
 
    /**
     * 判断SD是否挂载
     */
    public static boolean isSDCardMount() {
        return Environment.getExternalStorageState().equals(
                Environment.MEDIA_MOUNTED);
    }
 
    /**
     * 获取手机存储 ROM 信息
     * 
     * type:用于区分内置存储于外置存储的方法
     * 
     * 内置SD卡 :INTERNAL_STORAGE = 0;
     * 
     * 外置SD卡:EXTERNAL_STORAGE = 1;
     * **/
    public static String getStorageInfo(Context context, int type) {
 
        String path = getStoragePath(context, type);
        /**
         * 无外置SD 卡判断
         * **/
        if (isSDCardMount() == false || TextUtils.isEmpty(path) || path == null) {
            return "无外置SD卡";
        }
 
        File file = new File(path);
        StatFs statFs = new StatFs(file.getPath());
        String stotageInfo;
 
        long blockCount = statFs.getBlockCountLong();
        long bloackSize = statFs.getBlockSizeLong();
        long totalSpace = bloackSize * blockCount;
 
        long availableBlocks = statFs.getAvailableBlocksLong();
        long availableSpace = availableBlocks * bloackSize;
 
        stotageInfo = "可用/总共:"
                + Formatter.formatFileSize(context, availableSpace) + "/"
                + Formatter.formatFileSize(context, totalSpace);
 
        return stotageInfo;
 
    }
 
    /**
     * 使用反射方法 获取手机存储路径
     * 
     * **/
    public static String getStoragePath(Context context, int type) {
 
        StorageManager sm = (StorageManager) context
                .getSystemService(Context.STORAGE_SERVICE);
        try {
            Method getPathsMethod = sm.getClass().getMethod("getVolumePaths",
                    null);
            String[] path = (String[]) getPathsMethod.invoke(sm, null);
 
            switch (type) {
            case INTERNAL_STORAGE:
                return path[type];
            case EXTERNAL_STORAGE:
                if (path.length > 1) {
                    return path[type];
                } else {
                    return null;
                }
 
            default:
                break;
            }
 
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
 
    /**
     * 获取 手机 RAM 信息 方法 一
     * */
    public static String getTotalRAM(Context context) {
        long size = 0;
        ActivityManager activityManager = (ActivityManager) context
                .getSystemService(context.ACTIVITY_SERVICE);
        MemoryInfo outInfo = new MemoryInfo();
        activityManager.getMemoryInfo(outInfo);
        size = outInfo.totalMem;
 
        return Formatter.formatFileSize(context, size);
    }
 
    /**
     * 手机 RAM 信息 方法 二
     * */
    public static String getTotalRAMOther(Context context) {
        String path = "/proc/meminfo";
        String firstLine = null;
        int totalRam = 0;
        try {
            FileReader fileReader = new FileReader(path);
            BufferedReader br = new BufferedReader(fileReader, 8192);
            firstLine = br.readLine().split("\s+")[1];
            br.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        if (firstLine != null) {
 
            totalRam = (int) Math.ceil((new Float(Float.valueOf(firstLine)
                    / (1024 * 1024)).doubleValue()));
 
            long totalBytes = 0;
 
        }
 
        return Formatter.formatFileSize(context, totalRam);
    }
 
    /**
     * 获取 手机 可用 RAM
     * */
    public static String getAvailableRAM(Context context) {
        long size = 0;
        ActivityManager activityManager = (ActivityManager) context
                .getSystemService(context.ACTIVITY_SERVICE);
        MemoryInfo outInfo = new MemoryInfo();
        activityManager.getMemoryInfo(outInfo);
        size = outInfo.availMem;
 
        return Formatter.formatFileSize(context, size);
    }
 
    /**
     * 获取手机内部存储空间
     * 
     * @param context
     * @return 以M,G为单位的容量
     */
    public static String getTotalInternalMemorySize(Context context) {
        File file = Environment.getDataDirectory();
        StatFs statFs = new StatFs(file.getPath());
        long blockSizeLong = statFs.getBlockSizeLong();
        long blockCountLong = statFs.getBlockCountLong();
        long size = blockCountLong * blockSizeLong;
        return Formatter.formatFileSize(context, size);
    }
 
    /**
     * 获取手机内部可用存储空间
     * 
     * @param context
     * @return 以M,G为单位的容量
     */
    public static String getAvailableInternalMemorySize(Context context) {
        File file = Environment.getDataDirectory();
        StatFs statFs = new StatFs(file.getPath());
        long availableBlocksLong = statFs.getAvailableBlocksLong();
        long blockSizeLong = statFs.getBlockSizeLong();
        return Formatter.formatFileSize(context, availableBlocksLong
                * blockSizeLong);
    }
 
    /**
     * 获取手机外部存储空间
     * 
     * @param context
     * @return 以M,G为单位的容量
     */
    public static String getTotalExternalMemorySize(Context context) {
        File file = Environment.getExternalStorageDirectory();
        StatFs statFs = new StatFs(file.getPath());
        long blockSizeLong = statFs.getBlockSizeLong();
        long blockCountLong = statFs.getBlockCountLong();
        return Formatter
                .formatFileSize(context, blockCountLong * blockSizeLong);
    }
 
    /**
     * 获取手机外部可用存储空间
     * 
     * @param context
     * @return 以M,G为单位的容量
     */
    public static String getAvailableExternalMemorySize(Context context) {
        File file = Environment.getExternalStorageDirectory();
        StatFs statFs = new StatFs(file.getPath());
        long availableBlocksLong = statFs.getAvailableBlocksLong();
        long blockSizeLong = statFs.getBlockSizeLong();
        return Formatter.formatFileSize(context, availableBlocksLong
                * blockSizeLong);
    }
 
    /**
     * 
     * SD 卡信息
     * */
 
    public static String getSDCardInfo() {
 
        SDCardInfo sd = new SDCardInfo();
        if (!isSDCardMount())
            return "SD card 未挂载!";
 
        sd.isExist = true;
        StatFs sf = new StatFs(Environment.getExternalStorageDirectory()
                .getPath());
 
        sd.totalBlocks = sf.getBlockCountLong();
        sd.blockByteSize = sf.getBlockSizeLong();
        sd.availableBlocks = sf.getAvailableBlocksLong();
        sd.availableBytes = sf.getAvailableBytes();
        sd.freeBlocks = sf.getFreeBlocksLong();
        sd.freeBytes = sf.getFreeBytes();
        sd.totalBytes = sf.getTotalBytes();
        return sd.toString();
    }
 
    public static class SDCardInfo {
        boolean isExist;
        long totalBlocks;
        long freeBlocks;
        long availableBlocks;
        long blockByteSize;
        long totalBytes;
        long freeBytes;
        long availableBytes;
 
        @Override
        public String toString() {
            return "isExist=" + isExist + "
totalBlocks=" + totalBlocks
                    + "
freeBlocks=" + freeBlocks + "
availableBlocks="
                    + availableBlocks + "
blockByteSize=" + blockByteSize
                    + "
totalBytes=" + totalBytes + "
freeBytes=" + freeBytes
                    + "
availableBytes=" + availableBytes;
        }
    }
 
    // add start by wangjie for SDCard TotalStorage
    public static String getSDCardTotalStorage(long totalByte) {
 
        double byte2GB = totalByte / 1024.00 / 1024.00 / 1024.00;
        double totalStorage;
        if (byte2GB > 1) {
            totalStorage = Math.ceil(byte2GB);
            if (totalStorage > 1 && totalStorage < 3) {
                return 2.0 + "GB";
            } else if (totalStorage > 2 && totalStorage < 5) {
                return 4.0 + "GB";
            } else if (totalStorage >= 5 && totalStorage < 10) {
                return 8.0 + "GB";
            } else if (totalStorage >= 10 && totalStorage < 18) {
                return 16.0 + "GB";
            } else if (totalStorage >= 18 && totalStorage < 34) {
                return 32.0 + "GB";
            } else if (totalStorage >= 34 && totalStorage < 50) {
                return 48.0 + "GB";
            } else if (totalStorage >= 50 && totalStorage < 66) {
                return 64.0 + "GB";
            } else if (totalStorage >= 66 && totalStorage < 130) {
                return 128.0 + "GB";
            }
        } else {
            // below 1G return get values
            totalStorage = totalByte / 1024.00 / 1024.00;
 
            if (totalStorage >= 515 && totalStorage < 1024) {
                return 1 + "GB";
            } else if (totalStorage >= 260 && totalStorage < 515) {
                return 512 + "MB";
            } else if (totalStorage >= 130 && totalStorage < 260) {
                return 256 + "MB";
            } else if (totalStorage > 70 && totalStorage < 130) {
                return 128 + "MB";
            } else if (totalStorage > 50 && totalStorage < 70) {
                return 64 + "MB";
            }
        }
 
        return totalStorage + "GB";
    }
    // add end by wangjie for SDCard TotalStorage
 
}

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原文地址:https://www.cnblogs.com/www642830685/p/14103654.html