双击退出APP，版本更新,字符串工具类,分享到更多
来源：互联网 发布：java二维数组的定义 编辑：程序博客网 时间：2024/06/08 14:54
双击退出应该这样操作
private static Boolean isExit = false; private void exitBy2Click() { Timer tExit = null; if (isExit == false) { isExit = true; // 准备退出 ExtUtils.shortToast(this, "双击退出APP"); tExit = new Timer(); tExit.schedule(new TimerTask() { @Override public void run() { isExit = false; } }, 2000); } else { finish(); } }版本更新
private void getVersion(final String VERSION_CODE) { RequestManager.requestData(2, Request.Method.GET, Urls.URL_PREFIX + "update.jsp?ver=apk", BaseData.class, null, "getVersion", new Response.Listener<BaseData>() { @Override public void onResponse(BaseData response) { if (response != null) { String Code = ExtUtils.cutStringtoBefore(ExtUtils.cutStringtoAfter(response.data, "@"), "@"); int myVersionCode = Integer.parseInt(VERSION_CODE.replace(".", "")); int VersionCode = Integer.parseInt(Code.replace(".", "")); if (myVersionCode < VersionCode) { AlertDialog.Builder builder = new AlertDialog.Builder(Main_FragmentManagers.this); final AlertDialog dialog = builder.create(); builder.setView(View.inflate(Main_FragmentManagers.this, R.layout.layout_apk_updata_notic, null)); dialog.show(); Window window = dialog.getWindow(); window.setContentView(R.layout.layout_apk_updata_notic); final TextView content = (TextView) window.findViewById(R.id.txt_content); final Button cancel = (Button) window.findViewById(R.id.cancel); final Button ok = (Button) window.findViewById(R.id.ok); content.setText(ExtUtils.cutStringtoBefore(response.data, "@")); cancel.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dialog.dismiss(); } }); ok.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //下载apk ApkDownloadUtil util = new ApkDownloadUtil(Main_FragmentManagers.this); util.download(); dialog.dismiss(); } }); } } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { ExtUtils.errorLog("--MainFragment--VERSION_CODE--->", "" + error); RequestManager.cancelAll("getVersion"); } }); }版本更新工具类
public class ApkDownloadUtil { //下载APP的链接网址 private static final String CHUNYU_DOWNLOAD_URL = "http://www.hefd.cn:11888/mobile_server/flfg.apk"; //Apk的类型 private static final String APK_TYPE = "application/vnd.android.package-archive"; //Apk的默认名称 private static final String DEFAULT_FILE_NAME = "hjkk.apk"; //默认安装页面的App名称 private static final String DEFAULT_TITLE = "mmm"; private Context mContext; // 下载进行 private String mUrl; // URL地址 private String mFileName; // 文件名 private String mTitle; // 通知栏标题 private DownloadManager mDownloadManager; // 下载管理器 private long mDownloadId; // 下载ID // 下载完成的接收器 private BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { long downloadId = intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1); if (downloadId == mDownloadId) { installApp(mDownloadId); destroyArgs(); } } }; /** * 默认构造器, 下载 * @param context 上下文 */ public ApkDownloadUtil(Context context) { this(context, CHUNYU_DOWNLOAD_URL, DEFAULT_FILE_NAME, DEFAULT_TITLE); } /** * 参数构造器, 下载其他文件 * * * @param context 活动 * * @param url URL * * @param fileName 存储文件名 * @param title 通知栏标题 */ public ApkDownloadUtil(Context context, String url, String fileName, String title) { mContext = context; mUrl = url; mFileName = fileName; mTitle = title; initArgs(); } /** * 下载文件 */ public void download() { // 设置下载Url Uri resource = Uri.parse(mUrl); DownloadManager.Request request = new DownloadManager.Request(resource); // 设置文件类型 MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton(); String mimeString = mimeTypeMap.getMimeTypeFromExtension(MimeTypeMap.getFileExtensionFromUrl(mUrl)); request.setMimeType(mimeString); // 下载完成时在进度条提示 request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); // 存储sdcard目录的/jklkn/download文件夹 request.setDestinationInExternalPublicDir("/yuoiyoi/download/", mFileName); request.setTitle(mTitle); // 开始下载 mDownloadId = mDownloadManager.enqueue(request); } // 初始化 private void initArgs() { mDownloadManager = (DownloadManager) mContext.getSystemService((Context.DOWNLOAD_SERVICE)); mContext.registerReceiver(mReceiver, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE)); } // 析构 private void destroyArgs() { mContext.unregisterReceiver(mReceiver); } // 安装App private void installApp(long downloadId) { Intent install = new Intent(Intent.ACTION_VIEW); Uri downloadFileUri = mDownloadManager.getUriForDownloadedFile(downloadId); install.setDataAndType(downloadFileUri, APK_TYPE); install.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); install.setClassName("com.android.packageinstaller", "com.android.packageinstaller.PackageInstallerActivity"); mContext.startActivity(install); }}字符串工具类
public class ExtUtils { /** * 字符串判断是否为空 * * @param s * @return */ public static boolean isEmpty(String s) { if (null == s) return true; if (s.length() == 0) return true; if (s.trim().length() == 0) return true; return false; } /** * 字符串判断是否不为空 * * @param s * @return */ public static boolean isNotEmpty(String s) { return !isEmpty(s); } /** * 判断是否连接网络 * * @param context * @return */ public static boolean isConnected(Context context) { ConnectivityManager conn = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo info = conn.getActiveNetworkInfo(); return (info != null && info.isConnected()); } /** * 短Toast * * @param context * @param s */ public static void shortToast(Context context, String s) { Toast toast = new Toast(context); toast.setGravity(Gravity.CENTER, 0, 0); toast.makeText(context, s, Toast.LENGTH_SHORT).show(); } /** * 长Toast * * @param context * @param s */ public static void longToast(Context context, String s) { Toast toast = new Toast(context); toast.setGravity(Gravity.CENTER, 0, 0); toast.makeText(context, s, Toast.LENGTH_LONG).show(); } /** * 错误日志Log * * @param key * @param value */ public static void errorLog(String key, String value) { Log.e("-----------" + key + "-----------", value); } /** * 信息日志Log * * @param key * @param value */ public static void infoLog(String key, String value) { Log.i("-----------" + key + "-----------", value); } /** * 将数字格式化，以整数位每三位用“,”隔开，并保留为小数 * * @param price * @return */ public static String RoundTwoDecimal(double price) { /*保留两位小数点*/ /* NumberFormat nf= new DecimalFormat("0.00"); String s = nf.format(price); */ BigDecimal bd = new BigDecimal(price); bd = bd.setScale(1, BigDecimal.ROUND_HALF_UP); StringBuilder sb = new StringBuilder(); int index = (bd + "").lastIndexOf("."); String str1 = (bd + "").substring(0, index); // 取出小数点前面的字符串 String str2 = (bd + "").substring(index); // 存放小数点后面的内容 str1 = new StringBuilder(str1).reverse().toString(); // 将字符串颠倒过来 int size = (str1.length() % 3 == 0) ? (str1.length() / 3) : (str1 .length() / 3 + 1); // 将字符串每三位分隔开 for (int i = 0; i < size - 1; i++) { sb.append(str1.substring(i * 3, i * 3 + 3) + ","); } // 前n-1段都用逗号连接上 str1 = sb.toString() + str1.substring((size - 1) * 3); //将前n-1段和第n段连接在一起 str1 = new StringBuilder(str1).reverse().toString(); //连接上原来小数点后面的数 return str1 + str2; } public static String RoundTwoDecimals(double price) { NumberFormat nf = new DecimalFormat("0"); String s = nf.format(100 - Integer.parseInt(nf.format(price))); return s; } /** * 不允许输入空格 * * @param string * @return */ public static String Trim(String string) { return string.trim(); } /** * 首尾字符替换 * * @param str * @param head 需要替换的首字符 * @param end 需要替换的尾字符 * @return */ public String replaceStr(String str, String head, String end) { String headStr = str.replace(str.substring(0, 1), head); String endStr = headStr.replace(str.substring(str.length() - 1, str.length()), end); return endStr; } /** * 字符串转码 * * @param str * @return */ public static String toURLEncoder(String str) throws UnsupportedEncodingException { return null != str && !"".equals(str) ? URLEncoder.encode(URLEncoder.encode(str, "UTF-8"), "UTF-8") : str; } /** * 转码转中文 * * @param str * @return */ public static String toURLDecoder(String str) throws UnsupportedEncodingException { return null != str && !"".equals(str) ? URLDecoder.decode(URLDecoder.decode(str, "UTF-8"), "UTF-8") : str; } //测试专用打印 public static void getDataInfo(String className, String inputStearm) { System.out.println(className + "------->" + inputStearm); } /** * 截取指定字符之前的字符串 * * @param str 字符串 * @param flag 需要从哪一个字符截取 * @return */ public static String cutStringtoBefore(String str, String flag) { if (isNotEmpty(str) && isNotEmpty(flag)) { if (str.indexOf(flag) < 0) return ""; else { String newStr = str.substring(0, str.indexOf(flag)); return newStr; } } else return ""; } /** * 截取指定字符之后的字符串 * * @param str 字符串 * @param flag 需要从哪一个字符截取 * @return */ public static String cutStringtoAfter(String str, String flag) { if (isNotEmpty(str) && isNotEmpty(flag)) { if (str.indexOf(flag) < 0) return ""; else { String newStr = str.substring(str.indexOf(flag) + 1, str.length()); return newStr; } } else return ""; } private static String regex = "<(span|SPAN)[\\s ]+style='back.*?>"; private static String font = "<font color=\"red\">"; public static String changeData(String jsonStr, String fontStr, String color) { if (fontStr == null || "".equals(fontStr)) { fontStr = font; } if (color != null && !"".equals(color)) { fontStr = font.replace("red", color); } return jsonStr == null || "".equals(jsonStr) ? jsonStr : jsonStr.replaceAll(regex, fontStr).replace("</span>", "</font>"); } public static String changeData(String jsonStr) { return changeData(jsonStr, null, null); } public static String changeDataToColor(String jsonStr, String color) { return changeData(jsonStr, null, color); } /** * 获取现在时间 * * @return返回字符串格式 yyyy-MM-dd HH:mm:ss */ public static String getStringDate() { Date currentTime = new Date(); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String dateString = formatter.format(currentTime); return dateString; } /** * @author GoldDreams * @Time 2017/7/12 0012 :15:26 * fuction 获得手机序列号imei */ public static String getDeviceId(Context context) { StringBuilder deviceId = new StringBuilder(); TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); String imei = tm.getDeviceId(); if (isNotEmpty(imei)) { deviceId.append(imei); Log.i("getDeviceId : ", deviceId.toString()); return deviceId.toString(); } return "错误！！！"; } /** * @author GoldDreams * @Time 2017/7/12 0012 :15:26 * fuction 判断网络是否可用 */ 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; } /** * @author GoldDreams * @Time 2017/7/12 0012 :15:26 * fuction 判断网络状态 */ public static String getNetworkStatusCode(VolleyError error) { if (error.networkResponse.statusCode == 408) { return "网络超时..."; } else if (error.networkResponse.statusCode == 404) { return "服务器不可用..."; } else if (error.networkResponse.statusCode == 500) { return "服务器错误"; } return "" + error.networkResponse.statusCode; }}分享到更多
private void shareMore() { Intent Intents = new Intent(Intent.ACTION_SEND); Intents.setType("text/plain"); Intents.putExtra(Intent.EXTRA_TEXT, "gnfg\nhttp://www.gmihjhu.cn:11888/mobile_server/downflfg.html?key=d1503399183481"); startActivity(Intent.createChooser(Intents, "分享")); }阅读全文
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