Android - 获取设备信息的工具类（ DeviceUtil）
注解：
封装了安装常用的设备信息查询的工具类：
设备宽度、设备高度、SD卡判断、是否有网、版本名称、版本号、唯一标识、手机品牌、手机型号、API等级、Android版本、App进程Id、App进程Name、Meta-Data值、内网ip、公网ip（请求淘宝接口）；
代码：
package com.xxx.util;import android.Manifest;import android.app.Activity;import android.app.ActivityManager;import android.app.Application;import android.content.Context;import android.content.pm.ApplicationInfo;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.content.res.Configuration;import android.database.Cursor;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.net.Uri;import android.net.wifi.WifiInfo;import android.net.wifi.WifiManager;import android.os.Environment;import android.provider.MediaStore;import android.support.v4.app.ActivityCompat;import android.telephony.TelephonyManager;import android.util.Log;import org.json.JSONObject;import java.io.BufferedReader;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.Inet4Address;import java.net.InetAddress;import java.net.NetworkInterface;import java.net.SocketException;import java.net.URL;import java.net.URLConnection;import java.util.Enumeration;import java.util.Iterator;import java.util.List;/** * 设备信息的工具类 * * Created by Beluga_白鲸. */public class DeviceUtil { /** * 获取设备宽度（px） * * @param context * @return */ public static int deviceWidth(Context context) { return context.getResources().getDisplayMetrics().widthPixels; } /** * 获取设备高度（px） * * @param context * @return */ public static int deviceHeight(Context context) { return context.getResources().getDisplayMetrics().heightPixels; } /** * SD卡判断 * * @return */ public static boolean isSDCardAvailable() { return Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED); } /** * 是否有网 * * @param context * @return */ public static boolean isNetworkConnected(Context context) { if (context != null) { ConnectivityManager mConnectivityManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo(); if (mNetworkInfo != null) { return mNetworkInfo.isAvailable(); } } return false; } /** * 返回版本名字 * 对应build.gradle中的versionName * * @param context * @return */ public static String getVersionName(Context context) { String versionName = ""; try { PackageManager packageManager = context.getPackageManager(); PackageInfo packInfo = packageManager.getPackageInfo(context.getPackageName(), 0); versionName = packInfo.versionName; } catch (Exception e) { e.printStackTrace(); } return versionName; } /** * 返回版本号 * 对应build.gradle中的versionCode * * @param context * @return */ public static String getVersionCode(Context context) { String versionCode = ""; try { PackageManager packageManager = context.getPackageManager(); PackageInfo packInfo = packageManager.getPackageInfo(context.getPackageName(), 0); versionCode = String.valueOf(packInfo.versionCode); } catch (Exception e) { e.printStackTrace(); } return versionCode; } /** * 获取设备的唯一标识，deviceId * * @param context * @return */ public static String getDeviceId(Context context) { TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); if (ActivityCompat.checkSelfPermission(context, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) { //没有权限则返回"" return ""; } else { String deviceId = tm.getDeviceId(); if (deviceId == null) { return ""; } else { return deviceId; } } } /** * 获取手机品牌 * * @return */ public static String getPhoneBrand() { return android.os.Build.BRAND; } /** * 获取手机型号 * * @return */ public static String getPhoneModel() { return android.os.Build.MODEL; } /** * 获取手机Android API等级（22、23 ...） * * @return */ public static int getBuildLevel() { return android.os.Build.VERSION.SDK_INT; } /** * 获取手机Android 版本（4.4、5.0、5.1 ...） * * @return */ public static String getBuildVersion() { return android.os.Build.VERSION.RELEASE; } /** * 获取当前App进程的id * * @return */ public static int getAppProcessId() { return android.os.Process.myPid(); } /** * 获取当前App进程的Name * * @param context * @param processId * @return */ public static String getAppProcessName(Context context, int processId) { String processName = null; ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); // 获取所有运行App的进程集合 List l = am.getRunningAppProcesses(); Iterator i = l.iterator(); PackageManager pm = context.getPackageManager(); while (i.hasNext()) { ActivityManager.RunningAppProcessInfo info = (ActivityManager.RunningAppProcessInfo) (i.next()); try { if (info.pid == processId) { CharSequence c = pm.getApplicationLabel(pm.getApplicationInfo(info.processName, PackageManager.GET_META_DATA)); processName = info.processName; return processName; } } catch (Exception e) { Log.e(DeviceUtil.class.getName(), e.getMessage(), e); } } return processName; } /** * 创建App文件夹 * * @param appName * @param application * @return */ public static String createAPPFolder(String appName, Application application) { return createAPPFolder(appName, application, null); } /** * 创建App文件夹 * * @param appName * @param application * @param folderName * @return */ public static String createAPPFolder(String appName, Application application, String folderName) { File root = Environment.getExternalStorageDirectory(); File folder; /** * 如果存在SD卡 */ if (DeviceUtil.isSDCardAvailable() && root != null) { folder = new File(root, appName); if (!folder.exists()) { folder.mkdirs(); } } else { /** * 不存在SD卡，就放到缓存文件夹内 */ root = application.getCacheDir(); folder = new File(root, appName); if (!folder.exists()) { folder.mkdirs(); } } if (folderName != null) { folder = new File(folder, folderName); if (!folder.exists()) { folder.mkdirs(); } } return folder.getAbsolutePath(); } /** * 通过Uri找到File * * @param context * @param uri * @return */ public static File uri2File(Activity context, Uri uri) { File file; String[] project = {MediaStore.Images.Media.DATA}; Cursor actualImageCursor = context.getContentResolver().query(uri, project, null, null, null); if (actualImageCursor != null) { int actual_image_column_index = actualImageCursor .getColumnIndexOrThrow(MediaStore.Images.Media.DATA); actualImageCursor.moveToFirst(); String img_path = actualImageCursor .getString(actual_image_column_index); file = new File(img_path); } else { file = new File(uri.getPath()); } if (actualImageCursor != null) actualImageCursor.close(); return file; } /** * 获取AndroidManifest.xml里 的值 * * @param context * @param name * @return */ public static String getMetaData(Context context, String name) { String value = null; try { ApplicationInfo appInfo = context.getPackageManager().getApplicationInfo(context.getPackageName(), PackageManager.GET_META_DATA); value = appInfo.metaData.getString(name); } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } return value; } /** * 判断当前设备是手机还是平板，代码来自 Google I/O App for Android * * @param context * @return 平板返回 True，手机返回 False */ public static boolean isPad(Context context) { return (context.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_LARGE; } /** * 获取ip（内网ip） * @param context * @return */ public static String getIPAddress(Context context) { NetworkInfo info = ((ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo(); if (info != null && info.isConnected()) { if (info.getType() == ConnectivityManager.TYPE_MOBILE) {//当前使用2G/3G/4G网络 try { //Enumeration en=NetworkInterface.getNetworkInterfaces(); for (Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) { NetworkInterface intf = en.nextElement(); for (Enumeration enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) { InetAddress inetAddress = enumIpAddr.nextElement(); if (!inetAddress.isLoopbackAddress() && inetAddress instanceof Inet4Address) { return inetAddress.getHostAddress(); } } } } catch (SocketException e) { e.printStackTrace(); } } else if (info.getType() == ConnectivityManager.TYPE_WIFI) {//当前使用无线网络 WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); WifiInfo wifiInfo = wifiManager.getConnectionInfo(); String ipAddress = intIP2StringIP(wifiInfo.getIpAddress());//得到IPV4地址 return ipAddress; } } else { //当前无网络连接,请在设置中打开网络 } return null; } /** * 将得到的int类型的IP转换为String类型 * * @param ip * @return */ public static String intIP2StringIP(int ip) { return (ip & 0xFF) + "." + ((ip >> 8) & 0xFF) + "." + ((ip >> 16) & 0xFF) + "." + (ip >> 24 & 0xFF); } /** * 获取IP(外网ip、公网ip) */ public static String getNetIp() { String IP = ""; try { String address = "http://ip.taobao.com/service/getIpInfo2.php?ip=myip"; URL url = new URL(address); //URLConnection htpurl=url.openConnection(); HttpURLConnection connection = (HttpURLConnection) url .openConnection(); connection.setUseCaches(false); connection.setRequestMethod("GET"); connection.setRequestProperty("user-agent", "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.7 Safari/537.36"); //设置浏览器ua 保证不出现503 if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) { InputStream in = connection.getInputStream(); // 将流转化为字符串 BufferedReader reader = new BufferedReader( new InputStreamReader(in)); String tmpString = ""; StringBuilder retJSON = new StringBuilder(); while ((tmpString = reader.readLine()) != null) { retJSON.append(tmpString + "\n"); } JSONObject jsonObject = new JSONObject(retJSON.toString()); String code = jsonObject.getString("code"); if (code.equals("0")) { JSONObject data = jsonObject.getJSONObject("data"); //格式：180.000.00.000(中国区上海上海电信)// IP = data.getString("ip") + "(" + data.getString("country")// + data.getString("area") + "区"// + data.getString("region") + data.getString("city")// + data.getString("isp") + ")"; //格式：180.000.00.000 IP = data.getString("ip"); Log.e("提示", "您的IP地址是：" + IP); } else { IP = ""; Log.e("提示", "IP接口异常，无法获取IP地址！"); } } else { IP = ""; Log.e("提示", "网络连接异常，无法获取IP地址！"); } } catch (Exception e) { IP = ""; Log.e("提示", "获取IP地址时出现异常，异常信息是：" + e.toString()); } return IP; } public static String streamreader(InputStream is) throws IOException { //转换为字符 InputStreamReader isr = new InputStreamReader(is, "gbk"); BufferedReader br = new BufferedReader(isr); StringBuilder stringBuilder=new StringBuilder(); for(String tmp = br.readLine();tmp!= null;tmp = br.readLine()){ stringBuilder.append(tmp); } return stringBuilder.toString(); }}
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