Java tutorial
/* * Geopaparazzi - Digital field mapping on Android based devices * Copyright (C) 2016 HydroloGIS (www.hydrologis.com) * * 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 eu.geopaparazzi.core.maptools; import android.content.Context; import android.support.v4.app.FragmentManager; import android.support.v4.view.PagerAdapter; import android.text.Editable; import android.text.InputType; import android.text.TextWatcher; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.view.ViewGroup.LayoutParams; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.ScrollView; import android.widget.TextView; import java.text.DecimalFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.List; import eu.geopaparazzi.library.core.dialogs.DatePickerDialogFragment; import eu.geopaparazzi.library.database.GPLog; import eu.geopaparazzi.library.features.Feature; import eu.geopaparazzi.library.util.Compat; import eu.geopaparazzi.library.util.TimeUtilities; import eu.geopaparazzi.library.util.types.EDataType; /** * Page adapter for features. * * @author Andrea Antonello (www.hydrologis.com) */ public class FeaturePageAdapter extends PagerAdapter { private Context context; private List<Feature> featuresList; private boolean isReadOnly; private FragmentManager fragmentManager; private DecimalFormat areaLengthFormatter = new DecimalFormat("0.00"); /** * Constructor. * * @param context the {@link Context} to use. * @param featuresList the list of features to show. * @param isReadOnly if <code>true</code>, the adapter will be initially readonly. */ public FeaturePageAdapter(Context context, List<Feature> featuresList, boolean isReadOnly, FragmentManager manager) { super(); this.context = context; this.featuresList = featuresList; this.isReadOnly = isReadOnly; this.fragmentManager = manager; } /** * Mark the adapter as readonly. * * @param isReadOnly if <code>true</code>, then editing will be disabled. */ public void setReadOnly(boolean isReadOnly) { this.isReadOnly = isReadOnly; } @Override public int getCount() { return featuresList.size(); } @Override public Object instantiateItem(ViewGroup container, int position) { final Feature feature = featuresList.get(position); int bgColor = Compat.getColor(context, eu.geopaparazzi.library.R.color.formbgcolor); int textColor = Compat.getColor(context, eu.geopaparazzi.library.R.color.formcolor); ScrollView scrollView = new ScrollView(context); ScrollView.LayoutParams scrollLayoutParams = new ScrollView.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); scrollLayoutParams.setMargins(10, 10, 10, 10); scrollView.setLayoutParams(scrollLayoutParams); scrollView.setBackgroundColor(bgColor); LinearLayout linearLayoutView = new LinearLayout(context); LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); int margin = 10; layoutParams.setMargins(margin, margin, margin, margin); linearLayoutView.setLayoutParams(layoutParams); linearLayoutView.setOrientation(LinearLayout.VERTICAL); int padding = 10; linearLayoutView.setPadding(padding, padding, padding, padding); scrollView.addView(linearLayoutView); List<String> attributeNames = feature.getAttributeNames(); List<String> attributeValues = feature.getAttributeValuesStrings(); List<String> attributeTypes = feature.getAttributeTypes(); for (int i = 0; i < attributeNames.size(); i++) { final String name = attributeNames.get(i); String value = attributeValues.get(i); String typeString = attributeTypes.get(i); EDataType type = EDataType.getType4Name(typeString); TextView textView = new TextView(context); textView.setLayoutParams( new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); textView.setPadding(padding, padding, padding, padding); textView.setText(name); textView.setTextColor(textColor); // textView.setTextAppearance(context, android.R.style.TextAppearance_Medium); linearLayoutView.addView(textView); final TextView editView = getEditView(feature, name, type, value); LinearLayout.LayoutParams editViewParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); editViewParams.setMargins(margin, 0, margin, 0); editView.setLayoutParams(editViewParams); editView.setPadding(padding * 2, padding, padding * 2, padding); editView.setFocusable(!isReadOnly); if (isReadOnly) { editView.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { String text = editView.getText().toString(); FeatureUtilities.viewIfApplicable(v.getContext(), text); return false; } }); } linearLayoutView.addView(editView); } /* * add also area and length */ if (feature.getOriginalArea() > -1) { TextView areaTextView = new TextView(context); areaTextView.setLayoutParams( new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); areaTextView.setPadding(padding, padding, padding, padding); areaTextView.setText(context.getString(eu.geopaparazzi.core.R.string.area_colon) + areaLengthFormatter.format(feature.getOriginalArea())); areaTextView.setTextColor(textColor); TextView lengthTextView = new TextView(context); lengthTextView.setLayoutParams( new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); lengthTextView.setPadding(padding, padding, padding, padding); lengthTextView.setText(context.getString(eu.geopaparazzi.core.R.string.length_colon) + areaLengthFormatter.format(feature.getOriginalLength())); lengthTextView.setTextColor(textColor); linearLayoutView.addView(areaTextView); linearLayoutView.addView(lengthTextView); } container.addView(scrollView); return scrollView; } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((View) object); } @Override public boolean isViewFromObject(View view, Object object) { return view == object; } private TextView getEditView(final Feature feature, final String fieldName, EDataType type, String value) { final TextView editView; switch (type) { case DATE: editView = new TextView(context); editView.setInputType(InputType.TYPE_CLASS_DATETIME); editView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { FeaturePageAdapter.this.openDatePicker((EditText) view); } }); if (value == null || value.equals("")) { value = "____-__-__"; } break; default: editView = new EditText(context); break; } editView.setText(value); switch (type) { case DOUBLE: case FLOAT: editView.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL); break; case PHONE: editView.setInputType(InputType.TYPE_CLASS_PHONE); break; case DATE: editView.setInputType(InputType.TYPE_CLASS_DATETIME); editView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { FeaturePageAdapter.this.openDatePicker((TextView) view); } }); break; case INTEGER: editView.setInputType(InputType.TYPE_CLASS_NUMBER); break; default: break; } editView.addTextChangedListener(new TextWatcher() { public void onTextChanged(CharSequence s, int start, int before, int count) { // ignore } public void beforeTextChanged(CharSequence s, int start, int count, int after) { // ignore } public void afterTextChanged(Editable s) { String text = editView.getText().toString(); feature.setAttribute(fieldName, text); } }); return editView; } private void openDatePicker(TextView editView) { String dateStr = editView.getText().toString(); Date date = null; try { final SimpleDateFormat dateFormatter = TimeUtilities.INSTANCE.DATEONLY_FORMATTER; if (dateStr != null && dateStr.equals("")) { date = dateFormatter.parse(dateStr); } else { date = new Date(); } } catch (ParseException e) { GPLog.error(this, null, e); date = new Date(); } final Calendar c = Calendar.getInstance(); c.setTime(date); int year = c.get(Calendar.YEAR); int month = c.get(Calendar.MONTH); int day = c.get(Calendar.DAY_OF_MONTH); DatePickerDialogFragment newFragment = new DatePickerDialogFragment(year, month, day, editView); newFragment.show(this.fragmentManager, "datePicker"); } }