Java tutorial
/* * Geopaparazzi - Digital field mapping on Android based devices * Copyright (C) 2010 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.library.forms.views; import static eu.geopaparazzi.library.forms.FormUtilities.COLON; import static eu.geopaparazzi.library.forms.FormUtilities.UNDERSCORE; import java.io.File; import java.util.ArrayList; import java.util.Date; import java.util.List; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.graphics.Bitmap; import android.preference.PreferenceManager; import android.support.v4.app.FragmentActivity; import android.util.AttributeSet; import android.view.View; import android.view.ViewGroup.LayoutParams; import android.view.ViewTreeObserver; import android.widget.Button; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ScrollView; import android.widget.TextView; import eu.geopaparazzi.library.R; import eu.geopaparazzi.library.database.DefaultHelperClasses; import eu.geopaparazzi.library.database.GPLog; import eu.geopaparazzi.library.database.IImagesDbHelper; import eu.geopaparazzi.library.forms.FragmentDetail; import eu.geopaparazzi.library.images.ImageUtilities; import eu.geopaparazzi.library.markers.MarkersUtilities; import eu.geopaparazzi.library.util.FileUtilities; import eu.geopaparazzi.library.util.LibraryConstants; import eu.geopaparazzi.library.util.PositionUtilities; import eu.geopaparazzi.library.util.ResourcesManager; import eu.geopaparazzi.library.util.TimeUtilities; import eu.geopaparazzi.library.util.Utilities; /** * A custom Sketch view. * * @author Andrea Antonello (www.hydrologis.com) */ public class GSketchView extends View implements GView { private long noteId; private String _value; private List<String> addedImages = new ArrayList<String>(); private LinearLayout imageLayout; /** * @param context the context to use. * @param attrs attributes. * @param defStyle def style. */ public GSketchView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } /** * @param context the context to use. * @param attrs attributes. */ public GSketchView(Context context, AttributeSet attrs) { super(context, attrs); } /** * @param noteId the id of the note this image belows to. * @param fragmentDetail the fragment detail to use. * @param attrs attributes. * @param requestCode the code for starting the activity with result. * @param parentView parent * @param key key * @param value value * @param constraintDescription constraints */ public GSketchView(final long noteId, final FragmentDetail fragmentDetail, AttributeSet attrs, final int requestCode, LinearLayout parentView, String key, String value, String constraintDescription) { super(fragmentDetail.getActivity(), attrs); this.noteId = noteId; _value = value; final FragmentActivity activity = fragmentDetail.getActivity(); LinearLayout textLayout = new LinearLayout(activity); LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT); layoutParams.setMargins(10, 10, 10, 10); textLayout.setLayoutParams(layoutParams); textLayout.setOrientation(LinearLayout.VERTICAL); parentView.addView(textLayout); TextView textView = new TextView(activity); textView.setLayoutParams( new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); textView.setPadding(2, 2, 2, 2); textView.setText(key.replace(UNDERSCORE, " ").replace(COLON, " ") + " " + constraintDescription); textView.setTextColor(activity.getResources().getColor(R.color.formcolor)); textLayout.addView(textView); final Button button = new Button(activity); button.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); button.setPadding(15, 5, 15, 5); button.setText(R.string.draw_sketch); textLayout.addView(button); button.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { try { SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(activity); double[] gpsLocation = PositionUtilities.getGpsLocationFromPreferences(preferences); Date currentDate = new Date(); String sketchImageName = ImageUtilities.getSketchImageName(currentDate); File tempDir = ResourcesManager.getInstance(getContext()).getTempDir(); File sketchFile = new File(tempDir, sketchImageName); /* * open markers for new sketch */ MarkersUtilities.launch(fragmentDetail, sketchFile, gpsLocation, requestCode); } catch (Exception e) { e.printStackTrace(); } } }); ScrollView scrollView = new ScrollView(activity); ScrollView.LayoutParams scrollLayoutParams = new ScrollView.LayoutParams(LayoutParams.FILL_PARENT, 150); scrollView.setLayoutParams(scrollLayoutParams); parentView.addView(scrollView); imageLayout = new LinearLayout(activity); LinearLayout.LayoutParams imageLayoutParams = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); imageLayout.setLayoutParams(imageLayoutParams); // imageLayout.setMinimumHeight(200); imageLayout.setOrientation(LinearLayout.HORIZONTAL); scrollView.addView(imageLayout); // scrollView.setFillViewport(true); try { refresh(activity); } catch (Exception e) { GPLog.error(this, null, e); } } public void refresh(final Context context) throws Exception { log("Entering refresh...."); if (_value != null && _value.length() > 0) { String[] imageSplit = _value.split(";"); log("Handling images: " + _value); IImagesDbHelper imagesDbHelper = DefaultHelperClasses.getDefaulfImageHelper(); for (String imageId : imageSplit) { log("img: " + imageId); if (imageId.length() == 0) { continue; } long imageIdLong; try { imageIdLong = Long.parseLong(imageId); } catch (Exception e) { continue; } if (addedImages.contains(imageId.trim())) { continue; } byte[] imageThumbnail = imagesDbHelper.getImageThumbnail(imageIdLong); Bitmap thumbnail = ImageUtilities.getImageFromImageData(imageThumbnail); ImageView imageView = new ImageView(context); imageView.setLayoutParams(new LinearLayout.LayoutParams(102, 102)); imageView.setPadding(5, 5, 5, 5); imageView.setImageBitmap(thumbnail); imageView.setBackgroundDrawable(getResources().getDrawable(R.drawable.border_black_1px)); // imageView.setOnClickListener(new View.OnClickListener() { // public void onClick(View v) { // /* // * open in markers to edit it // */ // MarkersUtilities.launchOnImage(context, image); // } // }); log("Creating thumb and adding it: " + imageId); imageLayout.addView(imageView); imageLayout.invalidate(); addedImages.add(imageId); } if (addedImages.size() > 0) { StringBuilder sb = new StringBuilder(); for (String imagePath : addedImages) { sb.append(";").append(imagePath); } _value = sb.substring(1); log("New img paths: " + _value); } log("Exiting refresh...."); } } private void log(String msg) { if (GPLog.LOG_HEAVY) GPLog.addLogEntry(this, null, null, msg); } public String getValue() { return _value; } @Override public void setOnActivityResult(Intent data) { String absoluteImagePath = data.getStringExtra(LibraryConstants.PREFS_KEY_PATH); if (absoluteImagePath != null) { File imgFile = new File(absoluteImagePath); if (!imgFile.exists()) { return; } try { IImagesDbHelper imageHelper = DefaultHelperClasses.getDefaulfImageHelper(); double lat = data.getDoubleExtra(LibraryConstants.LATITUDE, 0.0); double lon = data.getDoubleExtra(LibraryConstants.LONGITUDE, 0.0); double elev = data.getDoubleExtra(LibraryConstants.ELEVATION, 0.0); byte[][] imageAndThumbnailArray = ImageUtilities.getImageAndThumbnailFromPath(absoluteImagePath, 10); java.util.Date currentDate = new java.util.Date(); String name = ImageUtilities.getSketchImageName(currentDate); long imageId = imageHelper.addImage(lon, lat, elev, -9999.0, currentDate.getTime(), name, imageAndThumbnailArray[0], imageAndThumbnailArray[1], noteId); // delete the file after insertion in db imgFile.delete(); _value = _value + GPictureView.IMAGE_ID_SEPARATOR + imageId; try { refresh(getContext()); } catch (Exception e) { GPLog.error(this, null, e); } } catch (Exception e) { GPLog.error(this, null, e); } } } }