Limuyang1013

/**
     * 解压一个压缩文档 到指定位置
     * 
     * @param zipFileString 压缩包的名字
     * @param outPathString 指定的路径
     * @throws Exception
     */
    public static void UnZipFolder(String zipFileString, String outPathString) throws Exception {
        java.util.zip.ZipInputStream inZip = new java.util.zip.ZipInputStream(new java.io.FileInputStream(zipFileString));
        java.util.zip.ZipEntry zipEntry;

Limuyang1013

public static String getNetworkTypeName(Context context) {
        if (context != null) {
            ConnectivityManager connectMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
            if (connectMgr != null) {
                NetworkInfo info = connectMgr.getActiveNetworkInfo();
                if (info != null) {
                    switch (info.getType()) {
                    case ConnectivityManager.TYPE_WIFI:
                        return "WIFI";
                    case ConnectivityManager.TYPE_MOBILE:

Limuyang1013

 private void saveCurrentPosition() {
        if (mListView != null) {
            int position = mListView.getFirstVisiblePosition();
            View v = mListView.getChildAt(0);
            int top = (v == null) ? 0 : v.getTop();
            //保存position和top
        }
    }
    
    private void restorePosition() {

Limuyang1013

import android.content.Context;  
  
public class DensityUtil {  
  
    /** 
     * 根据手机的分辨率从 dp 的单位 转成为 px(像素) 
     */  
    public static int dip2px(Context context, float dpValue) {  
        final float scale = context.getResources().getDisplayMetrics().density;  
        return (int) (dpValue * scale + 0.5f);  

Limuyang1013

 public static boolean isIntentAvailable(Context context, String action) {
        final PackageManager packageManager = context.getPackageManager();
        final Intent intent = new Intent(action);
        List<ResolveInfo> list = packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
        return list.size() > 0;
    }

Limuyang1013

 public static boolean checkNickname(String sequence) {
        final String format = "[^\\u4E00-\\u9FA5\\uF900-\\uFA2D\\w-_]";
        Pattern pattern = Pattern.compile(format);
        Matcher matcher = pattern.matcher(sequence);
        return !matcher.find();
    }