26
2017
09

Android开发中实用工具类总结

一、CommonUtils工具类.


import android.app.Activity;
import android.app.AlertDialog;
import android.app.Service;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Environment;
import android.os.Vibrator;
import android.view.inputmethod.InputMethodManager;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import ren.solid.library.R;

/** * Created by LW * Date:2017/9/24 * Time:10:03 */
public class CommonUtils {
    /** * 是否存在外部存储 * * @return */
    public static boolean isExternalStorageExists() {
        if (Environment.getExternalStorageState().equals(
                Environment.MEDIA_MOUNTED)) {
            return true;
        }
        return false;
    }

    public static void hideKeyboard(Activity activity) {
        try {
            ((InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE))
                    .hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }



    /* * 打开设置网络界面 */
    public static void setNetwork(final Context context) {
        // 提示对话框
        AlertDialog.Builder builder = new AlertDialog.Builder(context);
        builder.setCancelable(false);
        try {
            builder.setTitle("网络设置提示")
                    .setMessage("网络连接不可用,是否进行设置?")
                    .setPositiveButton("设置",
                            new DialogInterface.OnClickListener() {

                                @Override
                                public void onClick(DialogInterface dialog,
                                                    int which) {
                                    Intent intent = null;
                                    // 判断手机系统的版本 即API大于10 就是3.0或以上版本
                                    if (android.os.Build.VERSION.SDK_INT > 10) {
                                        intent = new Intent(
                                                android.provider.Settings.ACTION_WIRELESS_SETTINGS);
                                    } else {
                                        intent = new Intent();
                                        ComponentName component = new ComponentName(
                                                "com.android.settings",
                                                "com.android.settings.WirelessSettings");
                                        intent.setComponent(component);
                                        intent.setAction("android.intent.action.VIEW");
                                    }
                                    context.startActivity(intent);
                                }
                            })
                    .setNegativeButton("取消",
                            new DialogInterface.OnClickListener() {

                                @Override
                                public void onClick(DialogInterface dialog,
                                                    int which) {
                                    dialog.dismiss();
                                }
                            }).show();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /** * 调用震动器 * * @param context 调用该方法的Context * @param milliseconds 震动的时长,单位是毫秒 */
    public static void vibrate(final Context context, long milliseconds) {
        Vibrator vib = (Vibrator) context.getSystemService(Service.VIBRATOR_SERVICE);
        vib.vibrate(milliseconds);
    }

    /** * 调用震动器 * * @param context 调用该方法的Context * @param pattern 自定义震动模式 。数组中数字的含义依次是[静止时长,震动时长,静止时长,震动时长。。。]时长的单位是毫秒 * @param isRepeat 是否反复震动,如果是true,反复震动,如果是false,只震动一次 */
    public static void vibrate(final Context context, long[] pattern, boolean isRepeat) {
        Vibrator vib = (Vibrator) context.getSystemService(Service.VIBRATOR_SERVICE);
        vib.vibrate(pattern, isRepeat ? 1 : -1);
    }

    /** * 播放音乐 * * @param context */
    public static void playMusic(Context context) {
        MediaPlayer mp = MediaPlayer.create(context, R.raw.beep);
        mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
        mp.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mediaPlayer) {
                mediaPlayer.start();
            }
        });
        mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
            @Override
            public void onCompletion(MediaPlayer mediaPlayer) {
                mediaPlayer.release();
            }
        });
    }
}

二、DateUtils工具类对日期处理。


import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;

/** * Created by _SOLID * Date:2017/9/24 * Time:9:58 */
public class DateUtils {
    public static SimpleDateFormat formatDate = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault());
    public static SimpleDateFormat formatDateTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());

    /** * 格式化日期 * * @param date * @return 年月日 */
    public static String formatDate(Date date) {
        return formatDate.format(date);
    }

    /** * 格式化日期 * * @param date * @return 年月日 时分秒 */
    public static String formatDateTime(Date date) {
        return formatDateTime.format(date);
    }

    /** * 判断是不是今天 * * @param date * @return */
    public static boolean isToday(Date date) {
        Calendar calendar = Calendar.getInstance();
        int year = calendar.get(Calendar.YEAR);
        int month = calendar.get(Calendar.MONTH);
        int day = calendar.get(Calendar.DAY_OF_MONTH);

        calendar.setTime(date);
        return year == calendar.get(Calendar.YEAR)
                && month == calendar.get(Calendar.MONTH)
                && day == calendar.get(Calendar.DAY_OF_MONTH);
    }

    /** * 将时间戳解析成日期 * * @param timeInMillis * @return 年-月-日 */
    public static String parseDate(long timeInMillis) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(timeInMillis);
        Date date = calendar.getTime();
        return formatDate(date);
    }

    /** * 将时间戳解析成日期 * * @param timeInMillis * @return 年-月-日 时:分:秒 */
    public static String parseDateTime(long timeInMillis) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(timeInMillis);
        Date date = calendar.getTime();
        return formatDateTime(date);
    }

    /** * 解析日期 * * @param date 年-月-日 * @return */
    public static Date parseDate(String date) {
        Date mDate = null;
        try {
            mDate = formatDate.parse(date);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        return mDate;
    }

    /** * 解析日期 * * @param datetime * @return */
    public static Date parseDateTime(String datetime) {
        Date mDate = null;
        try {
            mDate = formatDateTime.parse(datetime);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        return mDate;
    }


    /** * 以友好的方式显示时间 * * @param sdate * @return */
    public static String friendlyTime(String sdate) {
        Date time = parseDateTime(sdate);
        if (time == null) {
            return "Unknown";
        }
        String ftime = "";
        Calendar cal = Calendar.getInstance();

        // 判断是否是同一天
        String curDate = formatDate.format(cal.getTime());
        String paramDate = formatDate.format(time);
        if (curDate.equals(paramDate)) {
            int hour = (int) ((cal.getTimeInMillis() - time.getTime()) / 3600000);
            if (hour == 0)
                ftime = Math.max(
                        (cal.getTimeInMillis() - time.getTime()) / 60000, 1)
                        + "分钟前";
            else
                ftime = hour + "小时前";
            return ftime;
        }

        long lt = time.getTime() / 86400000;
        long ct = cal.getTimeInMillis() / 86400000;
        int days = (int) (ct - lt);
        if (days == 0) {
            int hour = (int) ((cal.getTimeInMillis() - time.getTime()) / 3600000);
            if (hour == 0)
                ftime = Math.max(
                        (cal.getTimeInMillis() - time.getTime()) / 60000, 1)
                        + "分钟前";
            else
                ftime = hour + "小时前";
        } else if (days == 1) {
            ftime = "昨天";
        } else if (days == 2) {
            ftime = "前天";
        } else if (days > 2 && days <= 10) {
            ftime = days + "天前";
        } else if (days > 10) {
            ftime = formatDate.format(time);
        }
        return ftime;
    }
}

三、FileUtils工具栏对文件处理。

import android.content.Context;
import android.os.Environment;
import android.text.TextUtils;
import android.util.Log;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

/** * Created by LW * Date:2017/9/24 * Time:15:01 */
public class FileUtils {

    private static String TAG = "FileUtils";
    private static String FILE_WRITING_ENCODING = "UTF-8";
    private static String FILE_READING_ENCODING = "UTF-8";

    public static String readFile(String _sFileName, String _sEncoding) throws Exception {
        StringBuffer buffContent = null;
        String sLine;

        FileInputStream fis = null;
        BufferedReader buffReader = null;
        if (_sEncoding == null || "".equals(_sEncoding)) {
            _sEncoding = FILE_READING_ENCODING;
        }

        try {
            fis = new FileInputStream(_sFileName);
            buffReader = new BufferedReader(new InputStreamReader(fis,
                    _sEncoding));
            boolean zFirstLine = "UTF-8".equalsIgnoreCase(_sEncoding);
            while ((sLine = buffReader.readLine()) != null) {
                if (buffContent == null) {
                    buffContent = new StringBuffer();
                } else {
                    buffContent.append("\n");
                }
                if (zFirstLine) {
                    sLine = removeBomHeaderIfExists(sLine);
                    zFirstLine = false;
                }
                buffContent.append(sLine);
            }// end while
            return (buffContent == null ? "" : buffContent.toString());
        } catch (FileNotFoundException ex) {
            throw new Exception("要读取的文件没有找到!", ex);
        } catch (IOException ex) {
            throw new Exception("读取文件时错误!", ex);
        } finally {
            // 增加异常时资源的释放
            try {
                if (buffReader != null)
                    buffReader.close();
                if (fis != null)
                    fis.close();
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }
    }

    public static File writeFile(String path, String content, String encoding, boolean isOverride) throws Exception {
        if (TextUtils.isEmpty(encoding)) {
            encoding = FILE_WRITING_ENCODING;
        }
        InputStream is = new ByteArrayInputStream(content.getBytes(encoding));
        return writeFile(is, path, isOverride);
    }

    public static File writeFile(InputStream is, String path, boolean isOverride) throws Exception {
        String sPath = extractFilePath(path);
        if (!pathExists(sPath)) {
            makeDir(sPath, true);
        }

        if (!isOverride && fileExists(path)) {
            if (path.contains(".")) {
                String suffix = path.substring(path.lastIndexOf("."));
                String pre = path.substring(0, path.lastIndexOf("."));
                path = pre + "_" + System.currentTimeMillis() + suffix;
            } else {
                path = path + "_" + System.currentTimeMillis();
            }
        }

        FileOutputStream os = null;
        File file = null;

        try {
            file = new File(path);
            os = new FileOutputStream(file);
            int byteCount = 0;
            byte[] bytes = new byte[1024];

            while ((byteCount = is.read(bytes)) != -1) {
                os.write(bytes, 0, byteCount);
            }
            os.flush();

            return file;
        } catch (Exception e) {
            e.printStackTrace();
            throw new Exception("写文件错误", e);
        } finally {
            try {
                if (os != null)
                    os.close();
                if (is != null)
                    is.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    /** * 移除字符串中的BOM前缀 * * @param _sLine 需要处理的字符串 * @return 移除BOM后的字符串. */
    private static String removeBomHeaderIfExists(String _sLine) {
        if (_sLine == null) {
            return null;
        }
        String line = _sLine;
        if (line.length() > 0) {
            char ch = line.charAt(0);
            // 使用while是因为用一些工具看到过某些文件前几个字节都是0xfffe.
            // 0xfeff,0xfffe是字节序的不同处理.JVM中,一般是0xfeff
            while ((ch == 0xfeff || ch == 0xfffe)) {
                line = line.substring(1);
                if (line.length() == 0) {
                    break;
                }
                ch = line.charAt(0);
            }
        }
        return line;
    }

    /** * 从文件的完整路径名(路径+文件名)中提取 路径(包括:Drive+Directroy ) * * @param _sFilePathName * @return */
    public static String extractFilePath(String _sFilePathName) {
        int nPos = _sFilePathName.lastIndexOf('/');
        if (nPos < 0) {
            nPos = _sFilePathName.lastIndexOf('\\');
        }

        return (nPos >= 0 ? _sFilePathName.substring(0, nPos + 1) : "");
    }

    /** * 检查指定文件的路径是否存在 * * @param _sPathFileName 文件名称(含路径) * @return 若存在,则返回true;否则,返回false */
    public static boolean pathExists(String _sPathFileName) {
        String sPath = extractFilePath(_sPathFileName);
        return fileExists(sPath);
    }

    public static boolean fileExists(String _sPathFileName) {
        File file = new File(_sPathFileName);
        return file.exists();
    }

    /** * 创建目录 * * @param _sDir 目录名称 * @param _bCreateParentDir 如果父目录不存在,是否创建父目录 * @return */
    public static boolean makeDir(String _sDir, boolean _bCreateParentDir) {
        boolean zResult = false;
        File file = new File(_sDir);
        if (_bCreateParentDir)
            zResult = file.mkdirs(); // 如果父目录不存在,则创建所有必需的父目录
        else
            zResult = file.mkdir(); // 如果父目录不存在,不做处理
        if (!zResult)
            zResult = file.exists();
        return zResult;
    }


    public static void moveRawToDir(Context context, String rawName, String dir) {
        try {
            writeFile(context.getAssets().open(rawName), dir, true);
        } catch (Exception e) {
            e.printStackTrace();
            Log.e(TAG, e.getMessage());
        }
    }

    /** * 得到手机的缓存目录 * * @param context * @return */
    public static File getCacheDir(Context context) {
        Log.i("getCacheDir", "cache sdcard state: " + Environment.getExternalStorageState());
        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
            File cacheDir = context.getExternalCacheDir();
            if (cacheDir != null && (cacheDir.exists() || cacheDir.mkdirs())) {
                Log.i("getCacheDir", "cache dir: " + cacheDir.getAbsolutePath());
                return cacheDir;
            }
        }

        File cacheDir = context.getCacheDir();
        Log.i("getCacheDir", "cache dir: " + cacheDir.getAbsolutePath());

        return cacheDir;
    }

    /** * 得到皮肤目录 * * @param context * @return */
    public static File getSkinDir(Context context) {
        File skinDir = new File(getCacheDir(context), "skin");
        if (skinDir.exists()) {
            skinDir.mkdirs();
        }
        return skinDir;
    }

    public static String getSkinDirPath(Context context) {
        return getSkinDir(context).getAbsolutePath();
    }

    public static String getSaveImagePath(Context context) {

        String path = getCacheDir(context).getAbsolutePath();
        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
            path = Environment.getExternalStorageDirectory().getAbsolutePath()
                    + File.separator + Environment.DIRECTORY_DCIM;
        } else {
            path = path + File.separator + "Pictures";
        }
        File file = new File(path);
        if (!file.exists()) {
            file.mkdir();
        }
        return path;
    }

    public static String generateFileNameByTime() {
        return System.currentTimeMillis() + "";
    }

    public static String getFileName(String path) {
        int index = path.lastIndexOf('/');
        return path.substring(index + 1);
    }


}

四、KeyBoardUtils工具类对系统快keyboard进行显示或关闭。


import android.app.Activity;
import android.content.Context;
import android.view.View;
import android.view.inputmethod.InputMethodManager;

/** * Created by LW * Date:2017/9/24 * Time:9:30 */
public final class KeyboardUtils {
    private KeyboardUtils() {
    }

    public static void showKeyboard(Activity activity, View view) {
        if (activity != null) {
            if (view != null) {
                view.requestFocus();
            }
            InputMethodManager imm = (InputMethodManager)
                    activity.getSystemService(Context.INPUT_METHOD_SERVICE);
            if (imm != null) {
                imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
            }
        }
    }

    public static void hideKeyboard(Activity activity) {
        if (activity != null) {
            InputMethodManager imm = (InputMethodManager)
                    activity.getSystemService(Context.INPUT_METHOD_SERVICE);
            if (imm != null && activity.getCurrentFocus() != null) {
                imm.hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(), 0);
                activity.getCurrentFocus().clearFocus();
            }
        }
    }

    public static void hideKeyboard(Activity activity, View view) {
        if (activity != null) {
            if (view != null) {
                InputMethodManager imm = (InputMethodManager)
                        activity.getSystemService(Context.INPUT_METHOD_SERVICE);
                if (imm != null) {
                    imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
                }
            } else {
                hideKeyboard(activity);
            }
        }
    }
}

五、NetworkUtils工具类,对网络相关进行操作。

import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

/** * <pre> * author: LW * blog : http://blankj.com * time : 2017/9/24 * desc : 网络相关工具类 * </pre> */
public class NetworkUtil {

    private NetworkUtil() {
        throw new UnsupportedOperationException("u can't instantiate me...");
    }

    public static final int NETWORK_WIFI = 1;    // wifi network
    public static final int NETWORK_4G = 4;    // "4G" networks
    public static final int NETWORK_3G = 3;    // "3G" networks
    public static final int NETWORK_2G = 2;    // "2G" networks
    public static final int NETWORK_UNKNOWN = 5;    // unknown network
    public static final int NETWORK_NO = -1;   // no network

    private static final int NETWORK_TYPE_GSM = 16;
    private static final int NETWORK_TYPE_TD_SCDMA = 17;
    private static final int NETWORK_TYPE_IWLAN = 18;

    private static final String CMCC_ISP = "46000"; //中国移动
    private static final String CMCC2_ISP = "46002";//中国移动
    private static final String CU_ISP = "46001";   //中国联通
    private static final String CT_ISP = "46003";   //中国电信

    /** * 打开网络设置界面 * <p>3.0以下打开设置界面</p> * * @param context 上下文 */
    public static void openWirelessSettings(Context context) {
        if (android.os.Build.VERSION.SDK_INT > 10) {
            context.startActivity(new Intent(android.provider.Settings.ACTION_SETTINGS));
        } else {
            context.startActivity(new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS));
        }
    }

    /** * 获取活动网络信息 * * @param context 上下文 * @return NetworkInfo */
    private static NetworkInfo getActiveNetworkInfo(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        return cm.getActiveNetworkInfo();
    }

    /** * 判断网络是否可用 * <p>需添加权限 {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>}</p> * * @param context 上下文 * @return {@code true}: 可用<br>{@code false}: 不可用 */
    public static boolean isAvailable(Context context) {
        NetworkInfo info = getActiveNetworkInfo(context);
        return info != null && info.isAvailable();
    }

    /** * 判断网络是否连接 * <p>需添加权限 {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>}</p> * * @param context 上下文 * @return {@code true}: 是<br>{@code false}: 否 */
    public static boolean isConnected(Context context) {
        NetworkInfo info = getActiveNetworkInfo(context);
        return info != null && info.isConnected();
    }

    /** * 判断网络是否是4G * <p>需添加权限 {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>}</p> * * @param context 上下文 * @return {@code true}: 是<br>{@code false}: 不是 */
    public static boolean is4G(Context context) {
        NetworkInfo info = getActiveNetworkInfo(context);
        return info != null && info.isAvailable() && info.getSubtype() == TelephonyManager.NETWORK_TYPE_LTE;
    }

    /** * 判断wifi是否连接状态 * <p>需添加权限 {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>}</p> * * @param context 上下文 * @return {@code true}: 连接<br>{@code false}: 未连接 */
    public static boolean isWifiConnected(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        return cm != null && cm.getActiveNetworkInfo() != null
                && cm.getActiveNetworkInfo().getType() == ConnectivityManager.TYPE_WIFI;
    }

    /** * 获取移动网络运营商名称 * <p>中国移动、如中国联通、中国电信</p> * * @param context 上下文 * @return 移动网络运营商名称 */
    public static String getNetworkOperatorName(Context context) {
        TelephonyManager tm = (TelephonyManager) context
                .getSystemService(Context.TELEPHONY_SERVICE);
        String np = tm != null ? tm.getNetworkOperatorName() : null;
        String teleCompany = "unknown";
        if (np != null) {
            if (np.equals(CMCC_ISP) || np.equals(CMCC2_ISP)) {
                teleCompany = "中国移动";
            } else if (np.startsWith(CU_ISP)) {
                teleCompany = "中国联通";
            } else if (np.startsWith(CT_ISP)) {
                teleCompany = "中国电信";
            }
        }
        return teleCompany;
    }

    /** * 获取移动终端类型 * * @param context 上下文 * @return 手机制式 * <ul> * <li>{@link TelephonyManager#PHONE_TYPE_NONE } : 0 手机制式未知</li> * <li>{@link TelephonyManager#PHONE_TYPE_GSM } : 1 手机制式为GSM,移动和联通</li> * <li>{@link TelephonyManager#PHONE_TYPE_CDMA } : 2 手机制式为CDMA,电信</li> * <li>{@link TelephonyManager#PHONE_TYPE_SIP } : 3</li> * </ul> */
    public static int getPhoneType(Context context) {
        TelephonyManager tm = (TelephonyManager) context
                .getSystemService(Context.TELEPHONY_SERVICE);
        return tm != null ? tm.getPhoneType() : -1;
    }


    /** * 获取当前的网络类型(WIFI,2G,3G,4G) * <p>需添加权限 {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>}</p> * * @param context 上下文 * @return 网络类型 * <ul> * <li>{@link #NETWORK_WIFI } = 1;</li> * <li>{@link #NETWORK_4G } = 4;</li> * <li>{@link #NETWORK_3G } = 3;</li> * <li>{@link #NETWORK_2G } = 2;</li> * <li>{@link #NETWORK_UNKNOWN} = 5;</li> * <li>{@link #NETWORK_NO } = -1;</li> * </ul> */
    public static int getNetWorkType(Context context) {
        int netType = NETWORK_NO;
        NetworkInfo info = getActiveNetworkInfo(context);
        if (info != null && info.isAvailable()) {

            if (info.getType() == ConnectivityManager.TYPE_WIFI) {
                netType = NETWORK_WIFI;
            } else if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
                switch (info.getSubtype()) {

                    case NETWORK_TYPE_GSM:
                    case TelephonyManager.NETWORK_TYPE_GPRS:
                    case TelephonyManager.NETWORK_TYPE_CDMA:
                    case TelephonyManager.NETWORK_TYPE_EDGE:
                    case TelephonyManager.NETWORK_TYPE_1xRTT:
                    case TelephonyManager.NETWORK_TYPE_IDEN:
                        netType = NETWORK_2G;
                        break;

                    case NETWORK_TYPE_TD_SCDMA:
                    case TelephonyManager.NETWORK_TYPE_EVDO_A:
                    case TelephonyManager.NETWORK_TYPE_UMTS:
                    case TelephonyManager.NETWORK_TYPE_EVDO_0:
                    case TelephonyManager.NETWORK_TYPE_HSDPA:
                    case TelephonyManager.NETWORK_TYPE_HSUPA:
                    case TelephonyManager.NETWORK_TYPE_HSPA:
                    case TelephonyManager.NETWORK_TYPE_EVDO_B:
                    case TelephonyManager.NETWORK_TYPE_EHRPD:
                    case TelephonyManager.NETWORK_TYPE_HSPAP:
                        netType = NETWORK_3G;
                        break;

                    case NETWORK_TYPE_IWLAN:
                    case TelephonyManager.NETWORK_TYPE_LTE:
                        netType = NETWORK_4G;
                        break;
                    default:

                        String subtypeName = info.getSubtypeName();
                        if (subtypeName.equalsIgnoreCase("TD-SCDMA")
                                || subtypeName.equalsIgnoreCase("WCDMA")
                                || subtypeName.equalsIgnoreCase("CDMA2000")) {
                            netType = NETWORK_3G;
                        } else {
                            netType = NETWORK_UNKNOWN;
                        }
                        break;
                }
            } else {
                netType = NETWORK_UNKNOWN;
            }
        }
        return netType;
    }

    /** * 获取当前的网络类型(WIFI,2G,3G,4G) * <p>依赖上面的方法</p> * * @param context 上下文 * @return 网络类型名称 * <ul> * <li>NETWORK_WIFI </li> * <li>NETWORK_4G </li> * <li>NETWORK_3G </li> * <li>NETWORK_2G </li> * <li>NETWORK_UNKNOWN</li> * <li>NETWORK_NO </li> * </ul> */
    public static String getNetWorkTypeName(Context context) {
        switch (getNetWorkType(context)) {
            case NETWORK_WIFI:
                return "NETWORK_WIFI";
            case NETWORK_4G:
                return "NETWORK_4G";
            case NETWORK_3G:
                return "NETWORK_3G";
            case NETWORK_2G:
                return "NETWORK_2G";
            case NETWORK_NO:
                return "NETWORK_NO";
            default:
                return "NETWORK_UNKNOWN";
        }
    }

    /** * 根据域名获取ip地址 * * @param domain 域名 * @return ip地址 */
    public static String getIpAddress(final String domain) {
        try {
            ExecutorService exec = Executors.newCachedThreadPool();
            Future<String> fs = exec.submit(new Callable<String>() {
                @Override
                public String call() throws Exception {
                    InetAddress inetAddress;
                    try {
                        inetAddress = InetAddress.getByName(domain);
                        return inetAddress.getHostAddress();
                    } catch (UnknownHostException e) {
                        e.printStackTrace();
                        return null;
                    }
                }
            });
            return fs.get();
        } catch (InterruptedException | ExecutionException e) {
            e.printStackTrace();
            return null;
        }
    }
}

六、NumberUtils工具类,对电话号码运营商进行判断。


/** * Created by LW * Date:2017/9/24 * Time:10:12 */
public class NumberUtils {
    /** * 中国移动拥有号码段为:139,138,137,136,135,134,159,158,157(3G),151,150,188(3G),187(3G * );13个号段 中国联通拥有号码段为:130,131,132,156(3G),186(3G),185(3G);6个号段 * 中国电信拥有号码段为:133,153,189(3G),180(3G);4个号码段 */
    private static String mRegMobileStr = "^1(([3][456789])|([5][01789])|([8][78]))[0-9]{8}$";
    private static String mRegMobile3GStr = "^((157)|(18[78]))[0-9]{8}$";
    private static String mRegUnicomStr = "^1(([3][012])|([5][6])|([8][56]))[0-9]{8}$";
    private static String mRegUnicom3GStr = "^((156)|(18[56]))[0-9]{8}$";
    private static String mRegTelecomStr = "^1(([3][3])|([5][3])|([8][09]))[0-9]{8}$";
    private static String mRegTelocom3GStr = "^(18[09])[0-9]{8}$";
    private static String mRegPhoneString = "^(?:13\\d|15\\d)\\d{5}(\\d{3}|\\*{3})$";

    private String mobile = "";
    private int facilitatorType = 0;
    private boolean isLawful = false;
    private boolean is3G = false;

    public NumberUtils(String mobile)
    {
        this.setMobile(mobile);
    }

    public void setMobile(String mobile)
    {
        if (mobile == null)
        {
            return;
        }
        /** */
        /** 第一步判断中国移动 */
        if (mobile.matches(NumberUtils.mRegMobileStr))
        {
            this.mobile = mobile;
            this.setFacilitatorType(0);
            this.setLawful(true);
            if (mobile.matches(NumberUtils.mRegMobile3GStr))
            {
                this.setIs3G(true);
            }
        }
        /** */
        /** 第二步判断中国联通 */
        else if (mobile.matches(NumberUtils.mRegUnicomStr))
        {
            this.mobile = mobile;
            this.setFacilitatorType(1);
            this.setLawful(true);
            if (mobile.matches(NumberUtils.mRegUnicom3GStr))
            {
                this.setIs3G(true);
            }
        }
        /** */
        /** 第三步判断中国电信 */
        else if (mobile.matches(NumberUtils.mRegTelecomStr))
        {
            this.mobile = mobile;
            this.setFacilitatorType(2);
            this.setLawful(true);
            if (mobile.matches(NumberUtils.mRegTelocom3GStr))
            {
                this.setIs3G(true);
            }
        }
        /** */
        /** 第四步判断座机 */
        if (mobile.matches(NumberUtils.mRegPhoneString))
        {
            this.mobile = mobile;
            this.setFacilitatorType(0);
            this.setLawful(true);
            if (mobile.matches(NumberUtils.mRegMobile3GStr))
            {
                this.setIs3G(true);
            }
        }
    }

    public String getMobile()
    {
        return mobile;
    }

    public int getFacilitatorType()
    {
        return facilitatorType;
    }

    public boolean isLawful()
    {
        return isLawful;
    }

    public boolean isIs3G()
    {
        return is3G;
    }

    private void setFacilitatorType(int facilitatorType)
    {
        this.facilitatorType = facilitatorType;
    }

    private void setLawful(boolean isLawful)
    {
        this.isLawful = isLawful;
    }

    private void setIs3G(boolean is3G)
    {
        this.is3G = is3G;
    }
}

七、StringUtils工具类,对String进行操作。

import android.util.Log;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/** * Created by LW * Date:2017/9/24 * Time:16:11 */
public class StringUtils {

    /** * 将字符串进行md5转换 * * @param str * @return */
    public static String md5(String str) {
        String cacheKey;
        try {
            final MessageDigest mDigest = MessageDigest.getInstance("MD5");
            mDigest.update(str.getBytes());
            cacheKey = bytesToHexString(mDigest.digest());
        } catch (NoSuchAlgorithmException e) {
            cacheKey = String.valueOf(str.hashCode());
        }
        return cacheKey;
    }

    private static String bytesToHexString(byte[] bytes) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < bytes.length; i++) {
            String hex = Integer.toHexString(0xFF & bytes[i]);
            if (hex.length() == 1) {
                sb.append('0');
            }
            sb.append(hex);
        }
        return sb.toString();
    }

    public static boolean isNullOrEmpty(String s) {
        return s == null || s.length() == 0;
    }

    /** * 清除文本里面的HTML标签 * * @param htmlStr * @return */
    public static String clearHTMLTag(String htmlStr) {
        String regEx_script = "<script[^>]*?>[\\s\\S]*?<\\/script>"; // 定义script的正则表达式
        String regEx_style = "<style[^>]*?>[\\s\\S]*?<\\/style>"; // 定义style的正则表达式
        String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式
        Log.v("htmlStr", htmlStr);
        try {
            Pattern p_script = Pattern.compile(regEx_script,
                    Pattern.CASE_INSENSITIVE);
            Matcher m_script = p_script.matcher(htmlStr);
            htmlStr = m_script.replaceAll(""); // 过滤script标签

            Pattern p_style = Pattern.compile(regEx_style,
                    Pattern.CASE_INSENSITIVE);
            Matcher m_style = p_style.matcher(htmlStr);
            htmlStr = m_style.replaceAll(""); // 过滤style标签

            Pattern p_html = Pattern.compile(regEx_html,
                    Pattern.CASE_INSENSITIVE);
            Matcher m_html = p_html.matcher(htmlStr);
            htmlStr = m_html.replaceAll(""); // 过滤html标签
        } catch (Exception e) {
            htmlStr = "clear error";

        }

        return htmlStr; // 返回文本字符串
    }

    /** * 字符串转整数 * * @param str * @param defValue * @return */
    public static int toInt(String str, int defValue) {
        try {
            return Integer.parseInt(str);
        } catch (Exception e) {
        }
        return defValue;
    }

    /** * 对象转整数 * * @param str * @return 转换异常返回 0 */
    public static int toInt(String str) {
        if (str == null)
            return 0;
        return toInt(str.toString(), 0);
    }

    /** * 对象转整数 * * @param str * @return 转换异常返回 0 */
    public static long toLong(String str) {
        try {
            return Long.parseLong(str);
        } catch (Exception e) {
        }
        return 0;
    }

    /** * 字符串转布尔值 * * @param b * @return 转换异常返回 false */
    public static boolean toBool(String b) {
        try {
            return Boolean.parseBoolean(b);
        } catch (Exception e) {
        }
        return false;
    }


}

八、SystemUtils工具类,对系统一些操作。


import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.provider.Settings;
import android.telephony.TelephonyManager;
import android.text.TextUtils;

/** * 与系统有关的工具类 * Created by LW * Date:2017/9/24 * Time:19:37 */
public class SystemUtils {

    /** * 获取设备的制造商 * * @return 设备制造商 */
    public static String getDeviceManufacture() {
        return android.os.Build.MANUFACTURER;
    }

    /** * 获取设备名称 * * @return 设备名称 */
    public static String getDeviceName() {
        return android.os.Build.MODEL;
    }

    /** * 获取系统版本号 * * @return 系统版本号 */
    public static String getSystemVersion() {
        return android.os.Build.VERSION.RELEASE;
    }

    /** * 获取设备号 * * @param context * @return */
    public static String getDeviceIMEI(Context context) {
        TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
        if (telephonyManager == null || TextUtils.isEmpty(telephonyManager.getDeviceId())) {
            return Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ANDROID_ID);
        } else {
            return telephonyManager.getDeviceId();
        }
    }

    /** * 获取应用的版本号 * * @param context * @return */
    public static String getAppVersion(Context context) {
        PackageManager packageManager = context.getPackageManager();
        PackageInfo packageInfo;
        try {
            packageInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
            return packageInfo.versionName;
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return null;
    }




}

九、ToastUtils工具类。


import android.content.Context;
import android.widget.Toast;

/** * Created by LW * Date:2017/9/24 * Time:16:44 */
public class ToastUtils {

    private static Context mContext;
    private static ToastUtils mInstance;
    private Toast mToast;

    public static ToastUtils getInstance() {
        return mInstance;
    }

    public static void init(Context ctx) {
        mInstance = new ToastUtils(ctx);
    }

    private ToastUtils(Context ctx) {
        mContext = ctx;
    }

    public void showToast(String text) {
        if (mToast == null) {
            mToast = Toast.makeText(mContext, text, Toast.LENGTH_SHORT);
        } else {
            mToast.setText(text);
            mToast.setDuration(Toast.LENGTH_LONG);
        }
        mToast.show();
    }

    public void cancelToast() {
        if (mToast != null) {
            mToast.cancel();
        }
    }
}

十、ViewUtils工具类。

import android.content.Context;
import android.content.res.TypedArray;
import android.util.DisplayMetrics;
import android.util.TypedValue;

import ren.solid.library.fragment.base.BaseFragment;

/** * Created by LW * Date:2017/9/24 * Time:19:37 */
public class ViewUtils {

    /** * 根据Class创建Fragment * * @param clazz the Fragment of create * @return */
    public static BaseFragment createFragment(Class<?> clazz) {
        BaseFragment resultFragment = null;
        String className = clazz.getName();
        try {
            try {
                resultFragment = (BaseFragment) Class.forName(className).newInstance();
            } catch (InstantiationException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }

        return resultFragment;
    }

    public static DisplayMetrics getDisplayMetrics(Context context) {
        return context.getResources().getDisplayMetrics();
    }

    /** * 获取屏幕的宽度 * * @param context context * @return */
    public static int getScreenWidth(Context context) {
        DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
        return displayMetrics.widthPixels;
    }

    /** * 获取屏幕的高度 * * @param context context * @return */
    public static int getScreenHeight(Context context) {
        DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
        return displayMetrics.heightPixels;
    }

    //转换dp为px
    public static int dp2px(Context context, int dip) {
        float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dip * scale + 0.5f * (dip >= 0 ? 1 : -1));
    }

    //转换px为dp
    public static int px2dp(Context context, int px) {
        float scale = context.getResources().getDisplayMetrics().density;
        return (int) (px / scale + 0.5f * (px >= 0 ? 1 : -1));
    }

    //转换sp为px
    public static int sp2px(Context context, float spValue) {
        float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
        return (int) (spValue * fontScale + 0.5f);
    }

    //转换px为sp
    public static int px2sp(Context context, float pxValue) {
        float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
        return (int) (pxValue / fontScale + 0.5f);
    }

    public static int getThemeColorPrimary(Context ctx) {
        TypedValue typedValue = new TypedValue();
        ctx.getTheme().resolveAttribute(android.R.attr.theme, typedValue, true);
        int[] attribute = new int[]{android.R.attr.colorPrimary};
        TypedArray array = ctx.obtainStyledAttributes(typedValue.resourceId, attribute);
        int color = array.getColor(0, -1);
        array.recycle();
        return color;
    }

    public static int getThemeColorPrimaryDark(Context ctx) {
        TypedValue typedValue = new TypedValue();
        ctx.getTheme().resolveAttribute(android.R.attr.theme, typedValue, true);
        int[] attribute = new int[]{android.R.attr.colorPrimaryDark};
        TypedArray array = ctx.obtainStyledAttributes(typedValue.resourceId, attribute);
        int color = array.getColor(0, -1);
        array.recycle();
        return color;
    }

    public static int getThemeColorAccent(Context ctx) {
        TypedValue typedValue = new TypedValue();
        ctx.getTheme().resolveAttribute(android.R.attr.theme, typedValue, true);
        int[] attribute = new int[]{android.R.attr.colorAccent};
        TypedArray array = ctx.obtainStyledAttributes(typedValue.resourceId, attribute);
        int color = array.getColor(0, -1);
        array.recycle();
        return color;
    }
}

十一、PrefUtils工具类。


import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;

/** * Created by LW * Date:2017/9/4 * Time:9:32 * <p> * apply与commit异同: * 1. apply没有返回值而commit返回boolean表明修改是否提交成功 * 2. apply是将修改数据原子提交到内存, 而后异步真正提交到硬件磁盘, 而commit是同步的提交到硬件磁盘,因此,在多个并发的提交commit的时候,他们会等待正在处理的commit保存到磁盘后在操作,从而降低了效率。而apply只是原子的提交到内容,后面有调用apply的函数的将会直接覆盖前面的内存数据,这样从一定程度上提高了很多效率。 * 3. apply方法不会提示任何失败的提示。 * 由于在一个进程中,sharedPreference是单实例,一般不会出现并发冲突,如果对提交的结果不关心的话,建议使用apply,当然需要确保提交成功且有后续操作的话,还是需要用commit的。 */


public final class PrefUtils {
    private PrefUtils() {
    }

    public static int getInt(Context context, final String key, int defaultValue) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        return prefs.getInt(key, defaultValue);
    }

    public static void putInt(Context context, String key, int value) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        prefs.edit().putInt(key, value).apply();
    }

    public static long getLong(Context context, final String key, long defaultValue) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        return prefs.getLong(key, defaultValue);
    }

    public static void putLong(Context context, String key, long value) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        prefs.edit().putLong(key, value).apply();
    }

    public static String getString(Context context, final String key, final String defaultValue) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        return prefs.getString(key, defaultValue);
    }

    public static void putString(Context context, String key, String value) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        prefs.edit().putString(key, value).apply();
    }

    public static boolean getBoolean(Context context, String key, final boolean defaultValue) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        return prefs.getBoolean(key, defaultValue);
    }

    public static void putBoolean(Context context, String key, boolean value) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        prefs.edit().putBoolean(key, value).apply();
    }

    public static void remove(Context context, String key) {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
        prefs.edit().remove(key).apply();
    }
}
上一篇:ubuntu服务器中新建用户及设置主目录 下一篇:Xcode(8.3.3)编辑时闪退