标题

Posted 2020-07-13 我叫白小飞

在软件开发过程中常会用到一些工具方法，现对上一个项目所用的方法做一总结：

package com.elabing.android.client.utils;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.DecimalFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;
import java.util.Locale;
import java.util.Random;
import java.util.TimeZone;
import java.util.UUID;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;

import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.StringUtils;

import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.PixelFormat;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.media.ThumbnailUtils;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.MediaStore;
import android.provider.Settings.Secure;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.elabing.android.client.R;
import com.elabing.android.client.RenRenApplication;
import com.elabing.android.client.activity.BaseActivity;
import com.elabing.android.client.bean.GoodTypeInfo;
import com.elabing.android.client.bean.GoodTypeInfoFistLevResponse;
import com.elabing.android.client.bean.MobileInfo;
import com.elabing.android.client.bean.UnReadMessageCountResponse;
import com.elabing.android.client.lib.swipview.SwipeMenu;
import com.elabing.android.client.lib.swipview.SwipeMenuCreator;
import com.elabing.android.client.lib.swipview.SwipeMenuItem;
import com.elabing.android.client.net.Api;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;

public class CommonUtil {
public static boolean hasOrderPackageAction = false;

/**
 * 
 * @param context
 * @return
 */
public static String getChannelValue(Context context) {
    String result = "";
    ApplicationInfo appInfo;
    try {
        appInfo = context.getPackageManager().getApplicationInfo(
                context.getPackageName(), PackageManager.GET_META_DATA);
        // result = appInfo.metaData.getString("UMENG_CHANNEL");
    } catch (NameNotFoundException e) {
        e.printStackTrace();
    }
    return result;
}

public static MobileInfo getMobileInfo() {
    MobileInfo result = new MobileInfo();
    try {
        String mobileName = android.os.Build.BRAND;
        String mobileModel = android.os.Build.MODEL;
        String mobileSdkVersion = "" + android.os.Build.VERSION.SDK_INT;
        result.setBrean(mobileName);
        result.setModel(mobileModel);
        result.setSdkVersion(mobileSdkVersion);
    } catch (Exception e) {
        e.printStackTrace();
        result = null;
    }
    return result;

}

/**
 * 获取渠道号码
 * 
 * @param context
 * @return
 */
public static String getChannelValue2(Context context) {
    String result = "";
    ApplicationInfo appInfo;
    try {
        appInfo = context.getPackageManager().getApplicationInfo(
                context.getPackageName(), PackageManager.GET_META_DATA);
        result = appInfo.metaData.getString("UMENG_CHANNEL");
    } catch (NameNotFoundException e) {
        e.printStackTrace();
    }
    return result;
}

/**
 * 获取应用版本号（供应用市场使用的，用户不可见。通过数字大小来判断是否需要更新）
 * 
 * @param context
 * @return 应用版本号
 */
public static int getVersionCode(Context context) {
    int code = 0;
    try {
        code = context.getPackageManager().getPackageInfo(
                context.getPackageName(), 0).versionCode;
    } catch (NameNotFoundException e) {
        e.printStackTrace();
    }
    return code;
}

public static String getPkgName(Context context) {
    String pkg = "";
    try {
        pkg = context.getPackageName();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return pkg;
}

/**
 * 获取应用版本名称（用户可见）
 * 
 * @param context
 * @return 应用版本名称
 */
public static String getVersionName(Context context) {
    String code = "";
    try {
        code = context.getPackageManager().getPackageInfo(
                context.getPackageName(), 0).versionName;
    } catch (NameNotFoundException e) {
        e.printStackTrace();
    }
    return code;
}

/**
 * 获取设备号
 * 
 * @param context
 * @return 设备号
 */
public static String getDeviceNum(Context context) {
    return Secure
            .getString(context.getContentResolver(), Secure.ANDROID_ID);

}

/**
 * 获取一个UUID值
 * 
 * @return
 */
public static String getUUID() {
    return UUID.randomUUID().toString();
}

/**
 * 将一个图片对象转化为一个数组
 * 
 * @param drawable
 * @return
 */
public static byte[] drawableToByteArray(Drawable drawable) {
    int width = drawable.getIntrinsicWidth();

    int height = drawable.getIntrinsicHeight();

    Bitmap bitmap = Bitmap.createBitmap(width, height,

    drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888

    : Bitmap.Config.RGB_565);

    Canvas canvas = new Canvas(bitmap);

    drawable.setBounds(0, 0, width, height);

    drawable.draw(canvas);
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
    try {
        out.flush();
        out.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return out.toByteArray();
}

/**
 * 将一个数组转化为一个图片对象
 * 
 * @param res
 * @param bytearray
 * @return
 */
public static Drawable byteArrayToDrawable(Resources res, byte[] bytearray) {
    if (bytearray != null) {
        Bitmap bitmap = BitmapFactory.decodeByteArray(bytearray, 0,
                bytearray.length);
        return new BitmapDrawable(res, bitmap);
    } else {
        return null;
    }
}

/**
 * 复制一个文件
 * 
 * @param srcFile
 * @param destFile
 */
public static void copyFile(File srcFile, File destFile) {
    try {
        FileUtils.copyFile(srcFile, destFile);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

/**
 * 复制一个文件到一个文件目录
 * 
 * @param srcFile
 * @param destDir
 */
public static void copyFileToDirectory(File srcFile, File destDir) {
    if (!destDir.exists()) {
        destDir.mkdirs();
    }
    try {
        FileUtils.copyFileToDirectory(srcFile, destDir);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

public static boolean convertBitmapToFile(Bitmap bitmap, File file) {
    boolean result = false;
    try {
        FileOutputStream out = new FileOutputStream(file);
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
        out.flush();
        out.close();
        result = true;
    } catch (FileNotFoundException e) {
        e.printStackTrace();
        result = false;
    } catch (IOException e) {
        e.printStackTrace();
        result = false;
    }
    return result;
}

/**
 * 判断网络状态
 */
public static boolean isEnabledNetWork(Context context) {
    ConnectivityManager manager = (ConnectivityManager) context
            .getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo info = manager.getActiveNetworkInfo();
    return (info != null && info.isConnected());
}

public static Calendar getCalendar(long millis) {
    Calendar cal = Calendar.getInstance();
    cal.setTimeInMillis(millis);
    cal.setTimeZone(TimeZone.getDefault());
    return cal;
}

/**
 * 获取文件大小，字节数
 * 
 * @param file
 * @return
 */
public static long getFileSize(File file) {
    if (file != null) {
        return file.length();
    } else {
        return 0;
    }
}

public static long getFileSize(String filePath) {
    File file = new File(filePath);
    return getFileSize(file);
}

/**
 * 将字节转为M，保留两位小数
 * 
 * @param b
 * @return
 */
public static double convertByteToMb(long b) {
    System.out.println(b);
    return b / (1000000);
}

/**
 * 获取文件的大小，m
 * 
 * @param filePath
 * @return
 */
public static double getFileSizeToMb(String filePath) {

    return convertByteToMb(getFileSize(filePath));
}

/**
 * 压缩bitmap
 * 
 * @param path
 * @return
 */
public static Bitmap compressBmp(String path) throws Exception {
    BitmapFactory.Options newOpts = new BitmapFactory.Options();

    newOpts.inJustDecodeBounds = true;// 只读边,不读内容
    newOpts.inJustDecodeBounds = false;
    Bitmap bitmap = null;
    for (int i = 0; i < 3; i++) {
        try {
            bitmap = BitmapFactory.decodeFile(path, newOpts);
            break;
        } catch (OutOfMemoryError e) {
            // TODO: handle exception
        }
    }
    if (null == bitmap) {
        throw new Exception();
    }
    int w = newOpts.outWidth;
    int h = newOpts.outHeight;
    float hh = 800f;//
    float ww = 480f;//
    int be = 1;
    if (w > h && w > ww) {
        be = (int) (newOpts.outWidth / ww);
    } else if (w < h && h > hh) {
        be = (int) (newOpts.outHeight / hh);
    }
    if (be <= 0)
        be = 1;
    newOpts.inSampleSize = be;// 设置采样率

    newOpts.inPreferredConfig = Config.ARGB_8888;// 该模式是默认的,可不设
    newOpts.inPurgeable = true;// 同时设置才会有效
    newOpts.inInputShareable = true;// 。当系统内存不够时候图片自动被回收

    bitmap = BitmapFactory.decodeFile(path, newOpts);
    return bitmap;
}

/**
 * 获取一个随机码
 * 
 * @return
 */
public static int generateValidateCode() {
    Random random = new Random();
    int nextInt = 0;
    do {
        nextInt = random.nextInt(999999);
    } while (nextInt < 100000);
    return nextInt;
}

/**
 * 下载一个图片为直角的图片
 * 
 * @param url
 * @param imageView
 */
public static void downloadIcon2View(String url, ImageView imageView,
        int emptyResId, int onFailResId) {
    ImageLoader.getInstance().displayImage(
            url,
            imageView,
            RenRenApplication.getImageLoaderOptions(false, emptyResId,
                    onFailResId));
}

/**
 * 下载一个图片为圆角形
 * 
 * @param url
 * @param imageView
 */
public static void downloadIcon2ViewRound(String url, ImageView imageView,
        int emptyResId, int onFailResId) {
    ImageLoader.getInstance().displayImage(
            url,
            imageView,
            RenRenApplication.getImageLoaderOptions(true, emptyResId,
                    onFailResId));
}

/**
 * 下载一个图片格式为纯圆形的
 * 
 * @param url
 * @param imageView
 */
public static void downloadIcon2ViewCircle(String url, ImageView imageView) {
    ImageLoader.getInstance().displayImage(url, imageView,
            RenRenApplication.getImageLoaderOptionsOfCircle());
}

public static boolean isPhoneNumber(String phoneNumber) {
    if (StringUtils.isEmpty(phoneNumber))
        return false;
    if (phoneNumber.length() == 11) {
        String pattern = "(^(13\\d|14[57]|15[^4,\\D]|17[678]|18\\d)\\d{8}|170[059]\\d{7})$";
        Pattern p = Pattern.compile(pattern);
        Matcher m = p.matcher(phoneNumber);
        return m.find();// 是手机号
    } else
        return false;
}

public static String parseListData2Str(List<String> bodyList) {
    String result = "";
    if (bodyList != null) {
        for (String body : bodyList) {
            result = result + body;
        }
    }
    return result;
}

/**
 * 拨打电话
 * 
 * @param mContext
 * @param phoneNum
 */
public static void callPhone(Context mContext, String phoneNum) {
    Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:"
            + phoneNum));
    mContext.startActivity(intent);
}

/**
 * 获得屏幕宽高
 */
public static int getWidht(Context context) {
    WindowManager manager = (WindowManager) context
            .getSystemService(Context.WINDOW_SERVICE);
    return manager.getDefaultDisplay().getWidth();
}

public static int getHeight(Context context) {
    WindowManager manager = (WindowManager) context
            .getSystemService(Context.WINDOW_SERVICE);
    return manager.getDefaultDisplay().getHeight();
}

/**
 * 设置swipeview删除布局
 * 
 * @param context
 * @param color
 * @param resId
 * @return
 */
public static SwipeMenuCreator getSwipeView(final Context context,
        final Drawable drawable, final int resId, final int width,
        final String text) {
    // step 1. create a MenuCreator
    SwipeMenuCreator creator = new SwipeMenuCreator() {

        @Override
        public void create(SwipeMenu menu) {
            SwipeMenuItem deleteItem = new SwipeMenuItem(context);
            deleteItem.setBackground(drawable);
            deleteItem.setWidth(width);
            if (!text.equals("")) {
                deleteItem.setTitle(text);
                deleteItem.setTitleSize(14);
                deleteItem.setTitleColor(Color.WHITE);
            }
            if (resId != 0) {
                deleteItem.setIcon(resId);
            }
            menu.addMenuItem(deleteItem);
        }
    };
    return creator;

}



/***
 * 动态设置listview的高度
 * 
 * @param listView
 */
public static void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter == null) {
        return;
    }
    int totalHeight = 0;
    for (int i = 0; i < listAdapter.getCount(); i++) {
        View listItem = listAdapter.getView(i, null, listView);
        listItem.measure(0, 0);
        totalHeight += listItem.getMeasuredHeight();
    }
    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight
            + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    // params.height += 5;// if without this statement,the listview will be
    // a
    // little short
    // listView.getDividerHeight()获取子项间分隔符占用的高度
    // params.height最后得到整个ListView完整显示需要的高度
    listView.setLayoutParams(params);
}

/**
 * @param listView
 * @param requestDataTask
 * @param pageSize
 *            每次请求的多少条
 */
public static void registerDividePageListener(ListView listView,
        final RequestDividePageTask requestDataTask, final List dataSource,
        final int pageSize) {
    listView.setOnScrollListener(new OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView view, int scrollState) {
            if (scrollState == OnScrollListener.SCROLL_STATE_IDLE) {
                if ((view.getCount()) == view.getLastVisiblePosition() + 1) {
                    int pageIndex = view.getCount();
                    requestDataTask.updateData(dataSource.size(), pageSize);
                }
            }
        }

        @Override
        public void onScroll(AbsListView view, int firstVisibleItem,
                int visibleItemCount, int totalItemCount) {
        }
    });
}

public static void showNoMoreDataTip(BaseActivity activity) {
    Toast.makeText(activity, "无更多数据...", 1).show();

}

/**
 * 从相册选择图片返回图片地址
 * 
 * @param mContext
 * @param data
 * @return
 */
public static String chooseImageFromPhotoAlbum(Context mContext, Intent data) {
    String picturePath = null;
    Uri selectedImage = data.getData();
    if (selectedImage != null) {
        String[] filePathColumns = { MediaStore.Images.Media.DATA };
        Cursor c = mContext.getContentResolver().query(selectedImage,
                filePathColumns, null, null, null);
        c.moveToFirst();
        int columnIndex = c.getColumnIndex(filePathColumns[0]);
        picturePath = c.getString(columnIndex);
        c.close();
    } else {
        FileOutputStream stream = null;
        try {
            Bundle extras = data.getExtras();
            Bitmap bitmap = (Bitmap) extras.get("data");
            if (bitmap != null) {

                picturePath = Constants.FOLDER_IMAGE
                        + System.currentTimeMillis() + ".jpg";
                stream = new FileOutputStream(picturePath);
                bitmap.compress(CompressFormat.PNG, 100, stream);
                stream.flush();
                stream.close();
                bitmap.recycle();
                bitmap = null;
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (stream != null)
                try {
                    stream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
        }
    }
    return picturePath;
}

/**
 * 获取显示的支付方式
 * 
 * @param paytype
 * @return
 */
public static String getPayType(String paytype) {
    if (paytype.equals("1")) {
        return "支付宝";
    } else if (paytype.equals("2")) {
        return "微信";
    } else {
        return "银联";
    }
}

/**
 * 获取一个月前的日期
 * 
 * @param dateStr
 * @return
 */
public static String getBeforeMonthDate(String dateStr) {
    SimpleDateFormat sim = new SimpleDateFormat("yyyy-MM-dd");
    java.util.Date date = null;
    try {
        date = sim.parse(dateStr);
    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);
    cal.add(Calendar.MONTH, -1);

    String reStr = sim.format(cal.getTime());
    return reStr;

}

/**
 * 获取一月前的Calendar
 * 
 * @param dateStr
 * @return
 */
public static Calendar getBeforeMonthCalendar(String dateStr) {
    SimpleDateFormat sim = new SimpleDateFormat("yyyy-MM-dd");
    java.util.Date date = null;
    try {
        date = sim.parse(dateStr);
    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);
    cal.add(Calendar.MONTH, -1);
    return cal;

}



public static DisplayImageOptions initOptions(int imageId) {
    DisplayImageOptions options = null;
    options = new DisplayImageOptions.Builder().showImageOnLoading(imageId)
            .showImageForEmptyUri(imageId).showImageOnFail(imageId)
            .cacheInMemory(true).cacheOnDisk(true).considerExifParams(true)
            .bitmapConfig(Bitmap.Config.RGB_565).build();
    return options;

}

/**
 * 将彩色图转换为纯黑白二色
 * 
 * @param 位图
 * @return 返回转换好的位图
 */
public static Bitmap convertToBlackWhite(Bitmap bmp) {
    int width = bmp.getWidth(); // 获取位图的宽
    int height = bmp.getHeight(); // 获取位图的高
    int[] pixels = new int[width * height]; // 通过位图的大小创建像素点数组

    bmp.getPixels(pixels, 0, width, 0, 0, width, height);
    int alpha = 0xFF << 24;
    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
            int grey = pixels[width * i + j];

            // 分离三原色
            int red = ((grey & 0x00FF0000) >> 16);
            int green = ((grey & 0x0000FF00) >> 8);
            int blue = (grey & 0x000000FF);

            // 转化成灰度像素
            grey = (int) (red * 0.3 + green * 0.59 + blue * 0.11);
            grey = alpha | (grey << 16) | (grey << 8) | grey;
            pixels[width * i + j] = grey;
        }
    }
    // 新建图片
    Bitmap newBmp = Bitmap.createBitmap(width, height, Config.RGB_565);
    // 设置图片数据
    newBmp.setPixels(pixels, 0, width, 0, 0, width, height);

    Bitmap resizeBmp = ThumbnailUtils.extractThumbnail(newBmp, 380, 460);
    return resizeBmp;
}

/**
 * 获取未读消息个数并设置ui
 * 
 * @param context
 * @param tv
 * @param isShowNumber
 */
public static void updateUnReadCountMessage(final Context context,
        final TextView tv, final boolean isShowNumber) {
    new AsyncTask<Void, Void, UnReadMessageCountResponse>() {

        @Override
        protected UnReadMessageCountResponse doInBackground(Void... arg0) {
            UnReadMessageCountResponse unReadMessageCount = null;
            try {
                unReadMessageCount = Api.getInstance(context)
                        .getUnReadMessageCount(2);
                return unReadMessageCount;
            } catch (Exception e) {
                e.printStackTrace();
            }
            return unReadMessageCount;
        }

        protected void onPostExecute(UnReadMessageCountResponse result) {
            if (result == null || result.getCode() == -1) {
                tv.setVisibility(View.INVISIBLE);
            } else {
                if (result.getTotal() <= 0) {
                    tv.setVisibility(View.INVISIBLE);
                } else {
                    if (isShowNumber) {
                        tv.setText("" + result.getTotal());
                        tv.setVisibility(View.VISIBLE);
                    } else {
                        tv.setVisibility(View.INVISIBLE);
                    }
                }
            }
        };
    }.execute();
}

/**
 * 点击消息
 * 
 * @param context
 * @param messageId
 */
public static void setMessageIsRead(final Context context,
        final String messageId) {
    new AsyncTask<Void, Void, Void>() {

        @Override
        protected Void doInBackground(Void... arg0) {
            try {
                Api.getInstance(context).readMessage(messageId);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return null;
        }
    }.execute();
}

/**
 * 邮箱的验证
 * 
 * @param str
 * @return true 为验证正确，false 为失败
 */
public static boolean isEmail(String str) {
    Pattern pattern = Pattern
            .compile("^[a-zA-Z0-9.!#$%&‘*+\\/=?^_`{|}~-][email protected][a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$");
    Matcher mat = pattern.matcher(str);
    return mat.matches();
}

/**
 * 文件是否存在
 * 
 * @param path
 * @return
 */
public static boolean fileIsExists(String path) {
    try {
        File f = new File(path);
        if (!f.exists()) {
            return false;
        }

    } catch (Exception e) {
        // TODO: handle exception
        return false;
    }
    return true;
}

/**
 * 调用可能打开文件的软件打开文件
 * 
 * @param file
 */
public static void openFile(File file, Context context) {
    Intent intent = new Intent();
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    // 设置intent的Action属性
    intent.setAction(Intent.ACTION_VIEW);
    // 获取文件file的MIME类型
    String type = getMIMEType(file);
    // 设置intent的data和Type属性。
    intent.setDataAndType(/* uri */Uri.fromFile(file), type);
    // 跳转
    try {
        context.startActivity(intent); // 可能无应用可打开, 避免程序崩溃
    } catch (Exception e) {
        Toast.makeText(context, "无应用可打开此文件", Toast.LENGTH_SHORT).show();
        return;
    }
}

/**
 * 根据文件后缀名获得对应的MIME类型。
 * 
 * @param file
 */
private static String getMIMEType(File file) {

    String type = "*/*";
    String fName = file.getName();
    // 获取后缀名前的分隔符"."在fName中的位置。
    int dotIndex = fName.lastIndexOf(".");
    if (dotIndex < 0) {
        return type;
    }
    /* 获取文件的后缀名 */
    String end = fName.substring(dotIndex, fName.length()).toLowerCase(
            Locale.CHINA);
    if (end == "")
        return type;
    // 在MIME和文件类型的匹配表中找到对应的MIME类型。
    for (int i = 0; i < FileFormatParams.MIME_MapTable.length; i++) {
        if (end.equals(FileFormatParams.MIME_MapTable[i][0]))
            type = FileFormatParams.MIME_MapTable[i][1];
    }
    return type;
}
/**
 * 邮编验证
 * @param post
 * @return
 */
public static boolean checkPost(String post){  
    if(post.matches("[0-9]\\d{5}(?!\\d)")){  
        return true;  
    }else{  
        return false;  
    }  
} 

/**
 * 
 * @param str 需要过滤的字符串
 * @param regEx //要过滤掉的字符     String regEx = "[/\:*?<>|\"\n\t]"; 
 * @return
 * @throws PatternSyntaxException
 */
public static String StringFilter(String str,String regEx)throws PatternSyntaxException{ 
     Pattern p = Pattern.compile(regEx); 
     Matcher m = p.matcher(str); 
     return m.replaceAll("").trim(); 
     }

/**
 * 过滤字符
 * @param et
 */
public static void setEditTextFilter(final EditText et,String regEx ){
    et.addTextChangedListener(new TextWatcher() {

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
            // TODO Auto-generated method stub
            String editable = et.getText().toString(); 
            String str = CommonUtil.StringFilter(editable, " ");
            if(!editable.equals(str)){ 
                et.setText(str); 
                et.setSelection(str.length()); //光标置后
            }
        }

            @Override
            public void beforeTextChanged(CharSequence s, int start, int count,
                    int after) {
                // TODO Auto-generated method stub

            }

            @Override
            public void afterTextChanged(Editable s) {
                // TODO Auto-generated method stub

            }
        });

}

/**
 * 黑白处理
 * @param img
 * @return
 */
public static Bitmap binarization(Bitmap img) {  
    int width = img.getWidth();  
    int height = img.getHeight();  
    int area = width * height;  
    int gray[][] = new int[width][height];  
    int average = 0;// 灰度平均值  
    int graysum = 0;  
    int graymean = 0;  
    int grayfrontmean = 0;  
    int graybackmean = 0;  
    int pixelGray;  
    int front = 0;  
    int back = 0;  
    int[] pix = new int[width * height];  
    img.getPixels(pix, 0, width, 0, 0, width, height);  
    for (int i = 1; i < width; i++) { // 不算边界行和列，为避免越界  
        for (int j = 1; j < height; j++) {  
            int x = j * width + i;  
            int r = (pix[x] >> 16) & 0xff;  
            int g = (pix[x] >> 8) & 0xff;  
            int b = pix[x] & 0xff;  
            pixelGray = (int) (0.3 * r + 0.59 * g + 0.11 * b);// 计算每个坐标点的灰度  
            gray[i][j] = (pixelGray << 16) + (pixelGray << 8) + (pixelGray);  
            graysum += pixelGray;  
        }  
    }  
    graymean = (int) (graysum / area);// 整个图的灰度平均值  
    average = graymean;  
    for (int i = 0; i < width; i++) // 计算整个图的二值化阈值  
    {  
        for (int j = 0; j < height; j++) {  
            if (((gray[i][j]) & (0x0000ff)) < graymean) {  
                graybackmean += ((gray[i][j]) & (0x0000ff));  
                back++;  
            } else {  
                grayfrontmean += ((gray[i][j]) & (0x0000ff));  
                front++;  
            }  
        }  
    }  
    int frontvalue = (int) (grayfrontmean / front);// 前景中心  
    int backvalue = (int) (graybackmean / back);// 背景中心  
    float G[] = new float[frontvalue - backvalue + 1];// 方差数组  
    int s = 0;  
    for (int i1 = backvalue; i1 < frontvalue + 1; i1++)// 以前景中心和背景中心为区间采用大津法算法（OTSU算法）  
    {  
        back = 0;  
        front = 0;  
        grayfrontmean = 0;  
        graybackmean = 0;  
        for (int i = 0; i < width; i++) {  
            for (int j = 0; j < height; j++) {  
                if (((gray[i][j]) & (0x0000ff)) < (i1 + 1)) {  
                    graybackmean += ((gray[i][j]) & (0x0000ff));  
                    back++;  
                } else {  
                    grayfrontmean += ((gray[i][j]) & (0x0000ff));  
                    front++;  
                }  
            }  
        }  
        grayfrontmean = (int) (grayfrontmean / front);  
        graybackmean = (int) (graybackmean / back);  
        G[s] = (((float) back / area) * (graybackmean - average)  
                * (graybackmean - average) + ((float) front / area)  
                * (grayfrontmean - average) * (grayfrontmean - average));  
        s++;  
    }  
    float max = G[0];  
    int index = 0;  
    for (int i = 1; i < frontvalue - backvalue + 1; i++) {  
        if (max < G[i]) {  
            max = G[i];  
            index = i;  
        }  
    }  

    for (int i = 0; i < width; i++) {  
        for (int j = 0; j < height; j++) {  
            int in = j * width + i;  
            if (((gray[i][j]) & (0x0000ff)) < (index + backvalue)) {  
                pix[in] = Color.rgb(0, 0, 0);  
            } else {  
                pix[in] = Color.rgb(255, 255, 255);  
            }  
        }  
    }  

    Bitmap temp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);  
    temp.setPixels(pix, 0, width, 0, 0, width, height);
    return temp;  
}  
public static boolean isFirstLaunchApp(Context context){
    boolean result = true;
    result = SPUtil.getInstance(context).getBoolean(Constants.isFirstLaunchApp, true);
    return result;

}

public static void setIsFirstLaunchApp(Context applicationContext) {
    SPUtil.getInstance(applicationContext).putBoolean(Constants.isFirstLaunchApp, false);
}

/**
 * int 转化成double 保留两位小数
 * @param price
 * @return
 */
public static String saveDouble(int price){
    Double prices = Double.valueOf(price);
    return doubleTrans(prices);

}

public static String doubleTrans(double num){
    if(Math.round(num)-num==0){
            return String.valueOf((int)num/100);
    }else{
        DecimalFormat df = new DecimalFormat("#0.00");
        double avg = num/100.0;
        return df.format(avg);
    }

}

}