Java tutorial
/* * Copyright 2015 Synced Synapse. All rights reserved. * * 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.syncedsynapse.kore2.ui; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.pm.PackageManager; import android.os.Bundle; import android.preference.ListPreference; import android.preference.Preference; import android.preference.PreferenceFragment; import android.support.v4.app.TaskStackBuilder; import android.widget.Toast; import com.syncedsynapse.kore2.BuildConfig; import com.syncedsynapse.kore2.R; import com.syncedsynapse.kore2.Settings; import com.syncedsynapse.kore2.billing.IabHelper; import com.syncedsynapse.kore2.billing.IabResult; import com.syncedsynapse.kore2.billing.Inventory; import com.syncedsynapse.kore2.billing.Purchase; import com.syncedsynapse.kore2.utils.LogUtils; /** * Simple fragment to display preferences screen */ public class SettingsFragment extends PreferenceFragment implements SharedPreferences.OnSharedPreferenceChangeListener { private static final String TAG = LogUtils.makeLogTag(SettingsFragment.class); public static final String COFFEE_SKU = "coffee"; public static final int COFFEE_RC = 1001; // Billing helper private IabHelper mBillingHelper; private Settings mSettings; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Load the preferences from an XML resource addPreferencesFromResource(R.xml.preferences); mSettings = Settings.getInstance(getActivity()); if (BuildConfig.DEBUG) { mSettings.hasBoughtCoffee = true; } setupPreferences(mSettings.hasBoughtCoffee); if (!BuildConfig.DEBUG) { checkCoffeeUpgradeAsync(); } } @Override public void onResume() { super.onResume(); getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this); } @Override public void onPause() { super.onPause(); getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this); } public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { // Update summaries setupPreferences(mSettings.hasBoughtCoffee); if (key.equals(Settings.KEY_PREF_THEME)) { //String newTheme = sharedPreferences.getString(key, DEFAULT_PREF_THEME); // restart to apply new theme (actually build an entirely new task stack) TaskStackBuilder.create(getActivity()).addNextIntent(new Intent(getActivity(), RemoteActivity.class)) .addNextIntent(new Intent(getActivity(), SettingsActivity.class)).startActivities(); } } /** * Sets up the preferences state and summaries * @param hasBoughtCoffee Whether the user has bought me a coffee */ private void setupPreferences(boolean hasBoughtCoffee) { final Settings settings = Settings.getInstance(getActivity()); LogUtils.LOGD(TAG, "Setting up preferences. Has bought coffee? " + hasBoughtCoffee); // Coffee upgrade final Preference coffeePref = findPreference(Settings.KEY_PREF_COFFEE); if (coffeePref != null) { if (hasBoughtCoffee) { if (settings.showThanksForCofeeMessage) { coffeePref.setTitle(getResources().getString(R.string.thanks_for_coffe)); coffeePref.setSummary(getResources().getString(R.string.remove_coffee_message)); coffeePref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { settings.showThanksForCofeeMessage = false; settings.save(); getPreferenceScreen().removePreference(coffeePref); return true; } }); } else { getPreferenceScreen().removePreference(coffeePref); } } else { coffeePref.setTitle(getResources().getString(R.string.buy_me_coffee)); coffeePref.setSummary(getResources().getString(R.string.expresso_please)); coffeePref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { launchCoffeePurchase(); return true; } }); } } // Theme preferences ListPreference themePref = (ListPreference) findPreference(Settings.KEY_PREF_THEME); if (hasBoughtCoffee) { themePref.setEnabled(true); themePref.setSummary(themePref.getEntry()); } else { themePref.setEnabled(false); themePref.setSummary(getActivity().getString(R.string.buy_coffee_to_unlock_themes)); } // About preference String nameAndVersion = getActivity().getString(R.string.app_name); try { nameAndVersion += " v" + getActivity().getPackageManager() .getPackageInfo(getActivity().getPackageName(), 0).versionName; } catch (PackageManager.NameNotFoundException exc) { } Preference aboutPreference = findPreference(Settings.KEY_PREF_ABOUT); aboutPreference.setSummary(nameAndVersion); aboutPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { AboutDialogFragment aboutDialog = new AboutDialogFragment(); aboutDialog.show(getActivity().getFragmentManager(), null); return true; } }); } /** * Check if the user has bought coffee and locks/unlocks the ui */ private void checkCoffeeUpgradeAsync() { mBillingHelper = new IabHelper(this.getActivity(), BuildConfig.IAP_KEY); mBillingHelper.enableDebugLogging(BuildConfig.DEBUG); final Context context = this.getActivity(); mBillingHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() { public void onIabSetupFinished(IabResult result) { if (!result.isSuccess()) { // Oh noes, there was a problem. Toast.makeText(context, getResources().getString(R.string.error_setting_up_billing, result.getMessage()), Toast.LENGTH_SHORT).show(); // Lock UI mSettings.hasBoughtCoffee = false; setupPreferences(mSettings.hasBoughtCoffee); mSettings.save(); // Lock upgrade preference Preference coffeePreference = findPreference(Settings.KEY_PREF_COFFEE); coffeePreference.setEnabled(false); coffeePreference.setSummary( getResources().getString(R.string.error_setting_up_billing, result.getMessage())); LogUtils.LOGD(TAG, "Problem setting up In-app Billing: " + result); mBillingHelper.dispose(); mBillingHelper = null; return; } // Have we been disposed of in the meantime? If so, quit. if (mBillingHelper == null) return; // IAB is fully set up. Query purchased items mBillingHelper.queryInventoryAsync(new IabHelper.QueryInventoryFinishedListener() { @Override public void onQueryInventoryFinished(IabResult result, Inventory inv) { // Have we been disposed of in the meantime? If so, quit. if (mBillingHelper == null) return; if (result.isFailure()) { LogUtils.LOGD(TAG, "Failed to query inventory. Result: " + result); return; } Purchase upgradePurchase = inv.getPurchase(COFFEE_SKU); if (upgradePurchase != null) LogUtils.LOGD(TAG, "Purchase " + upgradePurchase.toString()); //boolean hasUpgrade = (upgradePurchase != null && verifyDeveloperPayload(upgradePurchase)); boolean hasUpgrade = inv.hasPurchase(COFFEE_SKU); LogUtils.LOGD(TAG, "Has purchase " + String.valueOf(hasUpgrade)); // update UI accordingly mSettings.hasBoughtCoffee = hasUpgrade; if (isAdded()) setupPreferences(mSettings.hasBoughtCoffee); mSettings.save(); } }); } }); } public void launchCoffeePurchase() { if (mBillingHelper == null) return; final Context context = this.getActivity(); mBillingHelper.launchPurchaseFlow(this.getActivity(), COFFEE_SKU, COFFEE_RC, new IabHelper.OnIabPurchaseFinishedListener() { @Override public void onIabPurchaseFinished(IabResult result, Purchase info) { // if we were disposed of in the meantime, quit. if (mBillingHelper == null) return; LogUtils.LOGD(TAG, "Purchase result: " + result + ". Info: " + info); if (result.isFailure()) { String msg = getResources().getString(R.string.error_during_purchased); msg = msg + "\n" + result.getMessage(); Toast.makeText(context, msg, Toast.LENGTH_SHORT).show(); LogUtils.LOGD(TAG, "Error in purchase" + result); return; } if (info.getSku().equals(COFFEE_SKU)) { Toast.makeText(context, R.string.purchase_thanks, Toast.LENGTH_SHORT).show(); mSettings.hasBoughtCoffee = true; setupPreferences(mSettings.hasBoughtCoffee); mSettings.save(); } } }); } /** * This method gets called when the purchase workflow is finished by the enclosing activity */ public boolean onPurchaseWorkflowFinish(int requestCode, int resultCode, Intent data) { LogUtils.LOGD(TAG, "onPurchaseWorkflowFinish(" + requestCode + "," + resultCode + "," + data); return (mBillingHelper != null) && mBillingHelper.handleActivityResult(requestCode, resultCode, data); } }