Java tutorial
/* * mpos-ui : http://www.payworksmobile.com * * The MIT License (MIT) * * Copyright (c) 2015 payworks GmbH * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package io.mpos.ui.shared.util; import android.content.Context; import android.content.res.ColorStateList; import android.graphics.Color; import android.graphics.PorterDuff; import android.graphics.Typeface; import android.graphics.drawable.Drawable; import android.os.Build; import android.support.v4.app.NavUtils; import android.support.v4.graphics.drawable.DrawableCompat; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.util.DisplayMetrics; import android.view.View; import android.widget.Button; import java.math.BigDecimal; import io.mpos.paymentdetails.PaymentDetailsScheme; import io.mpos.transactions.Currency; import io.mpos.ui.R; import io.mpos.ui.shared.MposUi; public class UiHelper { private static Typeface awesomeFont; public static String joinAndTrimStatusInformation(String[] information) { if (information == null) { return ""; } String retVal = ""; for (String line : information) { retVal += line.trim() + "\n"; } return retVal.trim(); } public static String formatAmountWithSymbol(Currency currency, BigDecimal amount) { if (currency == null) { return null; } else { return currency.formatAmountWithSymbol(amount); } } public static Typeface createAwesomeFontTypeface(Context context) { if (awesomeFont == null) { awesomeFont = Typeface.createFromAsset(context.getAssets(), "font/fontawesome-webfont.ttf"); } return awesomeFont; } public static int dpToPx(Context context, int dp) { DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics(); return Math.round(dp * (displayMetrics.xdpi / DisplayMetrics.DENSITY_DEFAULT)); } public static void setActionbarWithCustomColors(AppCompatActivity activity, Toolbar toolbar) { if (toolbar != null) { setupUpNavigation(activity, toolbar); activity.setSupportActionBar(toolbar); int color = MposUi.getInitializedInstance().getConfiguration().getAppearance().getTextColorPrimary(); toolbar.setTitleTextColor(color); final Drawable navigationDrawable = toolbar.getNavigationIcon(); if (navigationDrawable != null) { navigationDrawable.setColorFilter(color, PorterDuff.Mode.SRC_ATOP); toolbar.setNavigationIcon(navigationDrawable); } color = MposUi.getInitializedInstance().getConfiguration().getAppearance().getColorPrimary(); toolbar.setBackgroundColor(color); } if (Build.VERSION.SDK_INT >= 21) { int color = MposUi.getInitializedInstance().getConfiguration().getAppearance().getColorPrimaryDark(); activity.getWindow().setStatusBarColor(color); } } public static void tintButton(Button button, int color) { button.setTextColor(getColorsStateListForTint(color)); } public static int getDrawableIdForCardScheme(PaymentDetailsScheme cardScheme) { //if the given scheme is something totally unknown, we catch the exception and send back a -1 try { switch (cardScheme) { case MASTERCARD: return R.drawable.mpu_mastercard_image; case MAESTRO: return R.drawable.mpu_maestro_image; case VISA: case VISA_ELECTRON: return R.drawable.mpu_visacard_image; case AMERICAN_EXPRESS: return R.drawable.mpu_american_express_image; case JCB: return R.drawable.mpu_jcb_image; case DINERS: return R.drawable.mpu_diners_image; case DISCOVER: return R.drawable.mpu_discover_image; case UNION_PAY: return R.drawable.mpu_unionpay_image; default: return -1; } } catch (Exception ex) { return -1; } } public static void tintView(View view, int color) { Drawable wrappedDrawable = DrawableCompat.wrap(view.getBackground()); DrawableCompat.setTint(wrappedDrawable, color); view.setBackgroundDrawable(wrappedDrawable); } public static String getPartialCaptureHintText(Context context, BigDecimal amount, Currency currency) { String amountText = formatAmountWithSymbol(currency, amount); return context.getString(R.string.MPUPartiallyCaptured, amountText); } public static String formatAccountNumber(String accountNumber) { if (accountNumber == null) { return ""; } accountNumber = accountNumber.replaceAll(" ", ""); // Removing spaces accountNumber = accountNumber.replaceAll("-", ""); // Removing dashes(-) accountNumber = accountNumber.replaceAll("[^0-9]", "\u2022"); // Making everything except numbers X's int initialLength = accountNumber.length(); int numberOfSpaces = (initialLength - 1) / 4; StringBuilder sb = new StringBuilder(accountNumber); for (int i = 1; i <= numberOfSpaces; i++) { sb.insert(initialLength - 4 * i, " "); // Inserting spaces in the right spot. } return sb.toString(); } private static void setupUpNavigation(final AppCompatActivity activity, Toolbar toolbar) { toolbar.setNavigationIcon(R.drawable.abc_ic_ab_back_mtrl_am_alpha); toolbar.setNavigationOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { NavUtils.navigateUpFromSameTask(activity); } }); } private static ColorStateList getColorsStateListForTint(int color) { int[][] colorStates = new int[][] { new int[] { -android.R.attr.state_enabled }, // disabled state (-) new int[] {} // enabled }; int[] colors = new int[] { setAlphaForColor(color, 0.4f), color }; return new ColorStateList(colorStates, colors); } private static int setAlphaForColor(int color, float alphaFactor) { int alpha = Math.round(Color.alpha(color) * alphaFactor); int red = Color.red(color); int green = Color.green(color); int blue = Color.blue(color); return Color.argb(alpha, red, green, blue); } }