Java tutorial
/* * Copyright (C) 2015 Fastboot Mobile, LLC. * * This program is free software; you can redistribute it and/or modify it under the terms of the * GNU General Public License as published by the Free Software Foundation; either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with this program; * if not, see <http://www.gnu.org/licenses>. */ package com.fastbootmobile.encore.app.fragments; import android.app.AlertDialog; import android.content.ActivityNotFoundException; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.os.RemoteException; import android.support.annotation.LayoutRes; import android.support.v4.app.Fragment; import android.text.TextUtils; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ListView; import android.widget.Toast; import com.fastbootmobile.encore.app.MainActivity; import com.fastbootmobile.encore.app.R; import com.fastbootmobile.encore.app.WelcomeActivity; import com.fastbootmobile.encore.app.adapters.ProvidersAdapter; import com.fastbootmobile.encore.framework.PluginsLookup; import com.fastbootmobile.encore.providers.IMusicProvider; import com.fastbootmobile.encore.providers.ProviderConnection; import java.util.ArrayList; import java.util.List; /** * A placeholder fragment containing a simple view. */ public class WelcomeFragment extends Fragment { private static final String TAG = "WelcomeFragment"; private static final int LAST_STEP = 4; public static WelcomeFragment newInstance(int step) { int layoutId; switch (step) { case 1: layoutId = R.layout.fragment_welcome1; break; case 2: layoutId = R.layout.fragment_welcome2; break; case 3: layoutId = R.layout.fragment_welcome3; break; case 4: layoutId = R.layout.fragment_welcome4; break; default: throw new IllegalArgumentException("Invalid step: " + step); } WelcomeFragment fragment = new WelcomeFragment(); fragment.setLayoutId(layoutId); fragment.setStep(step); return fragment; } @LayoutRes private int mLayoutId; private int mStep; private ProviderConnection mConfiguringProvider; private ProvidersAdapter mStep3Adapter; public WelcomeFragment() { } public void setStep(int step) { mStep = step; } public void setLayoutId(@LayoutRes int id) { mLayoutId = id; } private void finishWizard() { Intent intent = new Intent(getActivity(), MainActivity.class); startActivity(intent); getActivity().finish(); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRetainInstance(true); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { if (mLayoutId <= 0) { // Happened once, couldn't reproduce, so let's do a dumb fallback here setStep(1); setLayoutId(R.layout.fragment_welcome1); } View root = inflater.inflate(mLayoutId, container, false); root.findViewById(R.id.btnNext).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (mStep == LAST_STEP) { finishWizard(); } else { WelcomeActivity act = (WelcomeActivity) getActivity(); act.showStep(mStep + 1); } } }); return root; } @Override public void onViewCreated(View view, Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); // Step specifics if (mStep == 2) { View root = getView(); if (root != null) { root.findViewById(R.id.btnSkip).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { AlertDialog.Builder dialog = new AlertDialog.Builder(getActivity()); dialog.setTitle(R.string.welcome_skip_dialog_title); dialog.setMessage(R.string.welcome_skip_dialog_body); dialog.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { finishWizard(); } }); dialog.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); dialog.show(); } }); root.findViewById(R.id.btnBrowse).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { ProviderDownloadDialog.newInstance(false).show(getFragmentManager(), "Download"); } }); } } else if (mStep == 3) { // Step 3: Configure plugins ListView lv = (ListView) view.findViewById(R.id.lvProviders); List<ProviderConnection> allProvs = PluginsLookup.getDefault().getAvailableProviders(); final List<ProviderConnection> provs = new ArrayList<>(); for (ProviderConnection prov : allProvs) { if (prov.getConfigurationActivity() != null && !TextUtils.isEmpty(prov.getConfigurationActivity())) { provs.add(prov); } } mStep3Adapter = new ProvidersAdapter(provs); mStep3Adapter.setWhite(true); mStep3Adapter.setWashOutConfigure(true); lv.setAdapter(mStep3Adapter); lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { ProviderConnection connection = provs.get(position); Intent intent = new Intent(); intent.setPackage(connection.getPackage()); intent.setClassName(connection.getPackage(), connection.getConfigurationActivity()); mConfiguringProvider = connection; try { startActivity(intent); } catch (ActivityNotFoundException e) { Toast.makeText(getActivity(), R.string.toast_retry_plugin_not_ready, Toast.LENGTH_SHORT) .show(); } } }); } } @Override public void onResume() { super.onResume(); // Update the list of plugins PluginsLookup.getDefault().requestUpdatePlugins(); // If we were configuring a provider, update it if (mConfiguringProvider != null) { IMusicProvider provider = mConfiguringProvider.getBinder(); if (provider != null) { try { if (provider.isSetup()) { provider.login(); } } catch (RemoteException e) { Log.e(TAG, "Remote exception while trying to login configured provider", e); } } else { Log.w(TAG, "Configured provider is null!"); } mConfiguringProvider = null; } if (mStep3Adapter != null) { mStep3Adapter.notifyDataSetChanged(); } } }