Java tutorial
/* * ViewerSettingsDialog.java * SDKLauncher-Android * * Created by Yonathan Teitelbaum (Mantano) on 2013-07-30. */ // Copyright (c) 2014 Readium Foundation and/or its licensees. All rights reserved. // Redistribution and use in source and binary forms, with or without modification, // are permitted provided that the following conditions are met: // 1. Redistributions of source code must retain the above copyright notice, this // list of conditions and the following disclaimer. // 2. Redistributions in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation and/or // other materials provided with the distribution. // 3. Neither the name of the organization nor the names of its contributors may be // used to endorse or promote products derived from this software without specific // prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. // IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, // INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, // BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE // OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED // OF THE POSSIBILITY OF SUCH DAMAGE package org.readium.sdk.android.biblemesh; import org.readium.sdk.android.biblemesh.model.ViewerSettings; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Parcelable; import android.support.v4.app.DialogFragment; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.RadioGroup; import java.io.Serializable; import static java.lang.Integer.parseInt; /** * This dialog displays the viewer settings to the user. * The model is represented by the class {@link ViewerSettings} * */ public class ViewerSettingsDialog extends DialogFragment { //public ViewerSettingsDialog() {} /** * Interface to notify the listener when a viewer settings have been changed. */ public interface OnViewerSettingsChange extends Serializable { public void onViewerSettingsChange(ViewerSettings settings); } protected static final String TAG = "ViewerSettingsDialog"; private OnViewerSettingsChange mListener; private ViewerSettings mOriginalSettings; public ViewerSettingsDialog() { }; public static ViewerSettingsDialog newInstance(OnViewerSettingsChange listener, ViewerSettings originalSettings) { ViewerSettingsDialog fragment = new ViewerSettingsDialog(); Bundle args = new Bundle(); args.putSerializable("listener", listener); args.putSerializable("settings", originalSettings); fragment.setArguments(args); return fragment; } @Override public Dialog onCreateDialog(Bundle savedInstanceState) { mListener = (OnViewerSettingsChange) getArguments().getSerializable("listener"); mOriginalSettings = (ViewerSettings) getArguments().getSerializable("settings"); AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); LayoutInflater inflater = getActivity().getLayoutInflater(); final View dialogView = inflater.inflate(R.layout.viewer_settings, null); final RadioGroup spreadGroup = (RadioGroup) dialogView.findViewById(R.id.spreadSettings); switch (mOriginalSettings.getSyntheticSpreadMode()) { case AUTO: spreadGroup.check(R.id.spreadAuto); break; case DOUBLE: spreadGroup.check(R.id.spreadDouble); break; case SINGLE: spreadGroup.check(R.id.spreadSingle); break; } final RadioGroup scrollGroup = (RadioGroup) dialogView.findViewById(R.id.scrollSettings); switch (mOriginalSettings.getScrollMode()) { case AUTO: scrollGroup.check(R.id.scrollAuto); break; case DOCUMENT: scrollGroup.check(R.id.scrollDocument); break; case CONTINUOUS: scrollGroup.check(R.id.scrollContinuous); break; } final EditText fontSizeText = (EditText) dialogView.findViewById(R.id.fontSize); fontSizeText.setText("" + mOriginalSettings.getFontSize()); final EditText columnGapText = (EditText) dialogView.findViewById(R.id.columnGap); columnGapText.setText("" + mOriginalSettings.getColumnGap()); final Button minusFont = (Button) dialogView.findViewById(R.id.minusbutton); minusFont.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Integer f = Integer.parseInt(fontSizeText.getText().toString()); f -= 10; if (f > 0) { fontSizeText.setText(f.toString()); } } }); final Button plusFont = (Button) dialogView.findViewById(R.id.plusbutton); plusFont.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Integer f = Integer.parseInt(fontSizeText.getText().toString()); f += 10; fontSizeText.setText(f.toString()); } }); builder.setView(dialogView).setTitle(R.string.settings) .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int id) { if (mListener != null) { int fontSize = parseString(fontSizeText.getText().toString(), 100); int columnGap = parseString(columnGapText.getText().toString(), 20); ViewerSettings.SyntheticSpreadMode syntheticSpreadMode = null; switch (spreadGroup.getCheckedRadioButtonId()) { case R.id.spreadAuto: syntheticSpreadMode = ViewerSettings.SyntheticSpreadMode.AUTO; break; case R.id.spreadSingle: syntheticSpreadMode = ViewerSettings.SyntheticSpreadMode.SINGLE; break; case R.id.spreadDouble: syntheticSpreadMode = ViewerSettings.SyntheticSpreadMode.DOUBLE; break; } ViewerSettings.ScrollMode scrollMode = null; switch (scrollGroup.getCheckedRadioButtonId()) { case R.id.scrollAuto: scrollMode = ViewerSettings.ScrollMode.AUTO; break; case R.id.scrollDocument: scrollMode = ViewerSettings.ScrollMode.DOCUMENT; break; case R.id.scrollContinuous: scrollMode = ViewerSettings.ScrollMode.CONTINUOUS; break; } ViewerSettings settings = new ViewerSettings(syntheticSpreadMode, scrollMode, fontSize, columnGap); mListener.onViewerSettingsChange(settings); } dismiss(); } private int parseString(String s, int defaultValue) { try { return parseInt(s); } catch (Exception e) { Log.e(TAG, "" + e.getMessage(), e); } return defaultValue; } }).setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dismiss(); } }); return builder.create(); } }