Java tutorial
/* * This file is part of Flying PhotoBooth. * * Flying PhotoBooth 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. * * Flying PhotoBooth 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 Flying PhotoBooth. If not, see <http://www.gnu.org/licenses/>. */ package com.groundupworks.partyphotobooth.setup.fragments; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.Button; import android.widget.Spinner; import com.groundupworks.partyphotobooth.R; import com.groundupworks.partyphotobooth.helpers.PreferencesHelper; import com.groundupworks.partyphotobooth.helpers.PreferencesHelper.PhotoBoothMode; import com.groundupworks.partyphotobooth.helpers.PreferencesHelper.PhotoBoothTheme; import com.groundupworks.partyphotobooth.helpers.PreferencesHelper.PhotoStripTemplate; import com.groundupworks.partyphotobooth.setup.model.PhotoBoothModeAdapter; import com.groundupworks.partyphotobooth.setup.model.PhotoBoothThemeAdapter; import com.groundupworks.partyphotobooth.setup.model.PhotoStripTemplateAdapter; import java.lang.ref.WeakReference; /** * Ui for setting up the photo booth. * * @author Benedict Lau */ public class PhotoBoothSetupFragment extends Fragment { /** * Callbacks for this fragment. */ private WeakReference<PhotoBoothSetupFragment.ICallbacks> mCallbacks = null; /** * A {@link PreferencesHelper} instance. */ private PreferencesHelper mPreferencesHelper = new PreferencesHelper(); // // Views. // private Spinner mMode; private Spinner mTheme; private Spinner mTemplate; private Button mNext; @Override public void onAttach(Activity activity) { super.onAttach(activity); mCallbacks = new WeakReference<PhotoBoothSetupFragment.ICallbacks>( (PhotoBoothSetupFragment.ICallbacks) activity); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { /* * Inflate views from XML. */ View view = inflater.inflate(R.layout.fragment_photo_booth_setup, container, false); mMode = (Spinner) view.findViewById(R.id.setup_photo_booth_mode); mTheme = (Spinner) view.findViewById(R.id.setup_photo_booth_theme); mTemplate = (Spinner) view.findViewById(R.id.setup_photo_booth_template); mNext = (Button) view.findViewById(R.id.setup_photo_booth_button_next); return view; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); Activity activity = getActivity(); final Context appContext = activity.getApplicationContext(); /* * Configure views with saved preferences and functionalize. */ final PhotoBoothModeAdapter modeAdapter = new PhotoBoothModeAdapter(activity); mMode.setAdapter(modeAdapter); mMode.setSelection(mPreferencesHelper.getPhotoBoothMode(appContext).ordinal()); mMode.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { PhotoBoothMode selectedMode = modeAdapter.getPhotoBoothMode(position); mPreferencesHelper.storePhotoBoothMode(appContext, selectedMode); } @Override public void onNothingSelected(AdapterView<?> parent) { // Do nothing. } }); final PhotoBoothThemeAdapter themeAdapter = new PhotoBoothThemeAdapter(activity); mTheme.setAdapter(themeAdapter); mTheme.setSelection(mPreferencesHelper.getPhotoBoothTheme(appContext).ordinal()); mTheme.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { PhotoBoothTheme selectedTheme = themeAdapter.getPhotoBoothTheme(position); mPreferencesHelper.storePhotoBoothTheme(appContext, selectedTheme); } @Override public void onNothingSelected(AdapterView<?> parent) { // Do nothing. } }); final PhotoStripTemplateAdapter templateAdapter = new PhotoStripTemplateAdapter(activity); mTemplate.setAdapter(templateAdapter); mTemplate.setSelection(mPreferencesHelper.getPhotoStripTemplate(appContext).ordinal()); mTemplate.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { PhotoStripTemplate selectedTemplate = templateAdapter.getPhotoStripTemplate(position); mPreferencesHelper.storePhotoStripTemplate(appContext, selectedTemplate); } @Override public void onNothingSelected(AdapterView<?> parent) { // Do nothing. } }); mNext.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // Call to client. ICallbacks callbacks = getCallbacks(); if (callbacks != null) { callbacks.onPhotoBoothSetupCompleted(); } } }); } // // Private methods. // /** * Gets the callbacks for this fragment. * * @return the callbacks; or null if not set. */ private PhotoBoothSetupFragment.ICallbacks getCallbacks() { PhotoBoothSetupFragment.ICallbacks callbacks = null; if (mCallbacks != null) { callbacks = mCallbacks.get(); } return callbacks; } // // Public methods. // /** * Creates a new {@link PhotoBoothSetupFragment} instance. * * @return the new {@link PhotoBoothSetupFragment} instance. */ public static PhotoBoothSetupFragment newInstance() { return new PhotoBoothSetupFragment(); } // // Interfaces. // /** * Callbacks for this fragment. */ public interface ICallbacks { /** * Setup of the photo booth has completed. */ void onPhotoBoothSetupCompleted(); } }