Java tutorial
/* * Copyright 2012 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.kth.baasio.baassample.utils; import android.annotation.TargetApi; import android.content.ActivityNotFoundException; import android.content.ComponentName; import android.content.ContentValues; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.pm.PackageManager; import android.content.pm.ResolveInfo; import android.content.res.Configuration; import android.content.res.Resources; import android.graphics.Color; import android.graphics.Typeface; import android.os.Build; import android.preference.PreferenceManager; import android.support.v4.app.FragmentActivity; import android.text.Html; import android.text.Spannable; import android.text.SpannableStringBuilder; import android.text.TextUtils; import android.text.format.DateUtils; import android.text.method.LinkMovementMethod; import android.text.style.StyleSpan; import android.view.View; import android.widget.TextView; import android.widget.Toast; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.Formatter; import java.util.GregorianCalendar; import java.util.Locale; import java.util.TimeZone; import org.codehaus.jackson.JsonNode; import org.usergrid.java.client.entities.Entity; import org.usergrid.java.client.response.ApiResponse; import com.kth.baasio.baassample.cache.ImageCache; import com.kth.baasio.baassample.cache.ImageFetcher; import com.kth.common.utils.ContentsValuesUtil; import com.kth.common.utils.ISO8601Util; /** * An assortment of UI helpers. */ public class EtcUtils { public static final String GOOGLE_PLUS_PACKAGE_NAME = "com.google.android.apps.plus"; @TargetApi(Build.VERSION_CODES.HONEYCOMB) public static void setActivatedCompat(View view, boolean activated) { if (hasHoneycomb()) { view.setActivated(activated); } } public static boolean hasFroyo() { // Can use static final constants like FROYO, declared in later versions // of the OS since they are inlined at compile time. This is guaranteed // behavior. return Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO; } public static boolean hasGingerbread() { return Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD; } public static boolean hasHoneycomb() { return Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB; } public static boolean hasHoneycombMR1() { return Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1; } public static boolean hasICS() { return Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH; } public static boolean hasJellyBean() { return Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN; } public static boolean isTablet(Context context) { return (context.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_LARGE; } public static boolean isHoneycombTablet(Context context) { return hasHoneycomb() && isTablet(context); } public static ImageFetcher getImageFetcher(final FragmentActivity activity) { // The ImageFetcher takes care of loading remote images into our // ImageView ImageFetcher fetcher = new ImageFetcher(activity); fetcher.setImageCache(ImageCache.findOrCreateCache(activity, "imageFetcher")); return fetcher; } public static String getStringFromEntity(Entity entity, String key) { JsonNode node = entity.getProperties().get(key); if (node != null) { // String result = node.toString(); // if(result != null && result.length() > 0) { // result = result.replace("<BR>", "\n"); // result = result.replace("<br>", "\n"); // return result.replace("\"", "").trim(); // } String value = node.getTextValue(); if (value != null && value.length() > 0) { return value.replace("<br>", "\n").replace("<BR>", "\n").trim(); } else { return null; } } return null; } public static long getLongFromEntity(Entity entity, String key, long value) { JsonNode node = entity.getProperties().get(key); if (node != null) { // String result = node.toString(); // if(result != null && result.length() > 0) { // return Long.valueOf(result.replace("\"", "").trim()); // } return node.getLongValue(); } return value; } public static int getIntFromEntity(Entity entity, String key, int value) { JsonNode node = entity.getProperties().get(key); if (node != null) { // String result = node.toString(); // if(result != null && result.length() > 0) { // return Integer.valueOf(result.replace("\"", "").trim()); // } return node.getIntValue(); } return value; } public static String getStringFromApiResponse(ApiResponse response, String key) { JsonNode node = response.getProperties().get(key); if (node != null) { String result = node.toString(); if (result != null && result.length() > 0) { return result.replace("\"", "").trim(); } } return ""; } public static String getDateString(long millis) { String time = null; if (Locale.getDefault().equals(Locale.KOREA) || Locale.getDefault().equals(Locale.KOREAN)) { SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd a hh:mm", Locale.getDefault()); time = formatter.format(new Date(millis)); } else { SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd a hh:mm", Locale.getDefault()); time = formatter.format(new Date(millis)); } return time; } public static String getSimpleDateString(long millis) { String time = null; if (Locale.getDefault().equals(Locale.KOREA) || Locale.getDefault().equals(Locale.KOREAN)) { SimpleDateFormat formatter = new SimpleDateFormat("M d? a h mm", Locale.getDefault()); time = formatter.format(new Date(millis)); } else { time = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.SHORT, Locale.getDefault()) .format(new Date(millis)); } return time; } }