Java tutorial
/* * Copyright (C) TernUp Research Labs * * This file is part of Caddisfly * * Caddisfly is free software: you can redistribute it and modify it under the terms of * the GNU Affero General Public License (AGPL) as published by the Free Software Foundation, * either version 3 of the License or any later version. * * Caddisfly 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 Affero General Public License included below for more details. * * The full license text can also be seen at <http://www.gnu.org/licenses/agpl.html>. */ package com.ternup.caddisfly.fragment; import android.app.Fragment; import android.app.FragmentManager; import android.app.FragmentTransaction; import android.app.ListFragment; import android.app.ProgressDialog; import android.content.ContentUris; import android.content.Context; import android.content.DialogInterface; import android.content.SharedPreferences; import android.content.res.TypedArray; import android.database.Cursor; import android.graphics.LinearGradient; import android.graphics.Shader; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.PowerManager; import android.preference.PreferenceManager; import android.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.ListView; import android.widget.TextView; import com.loopj.android.http.AsyncHttpResponseHandler; import com.loopj.android.http.RequestParams; import com.ternup.caddisfly.R; import com.ternup.caddisfly.adapter.GalleryListAdapter; import com.ternup.caddisfly.app.Globals; import com.ternup.caddisfly.app.MainApp; import com.ternup.caddisfly.database.LocationTable; import com.ternup.caddisfly.database.TestTable; import com.ternup.caddisfly.provider.TestContentProvider; import com.ternup.caddisfly.util.AlertUtils; import com.ternup.caddisfly.util.DataHelper; import com.ternup.caddisfly.util.DateUtils; import com.ternup.caddisfly.util.FileUtils; import com.ternup.caddisfly.util.NetworkUtils; import com.ternup.caddisfly.util.PreferencesHelper; import com.ternup.caddisfly.util.PreferencesUtils; import com.ternup.caddisfly.util.WebClient; import org.apache.http.Header; import org.json.JSONException; import org.json.JSONObject; import java.io.File; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.TimeZone; public class DetailsFragment extends ListFragment { private String mTestType; private int mTestTypeId; private long mLocationId = -1; private Context mContext; private long mId; private TextView mDateView; private TextView mResultTextView; private TextView mAddressText; private TextView mAddress2Text; private TextView mAddress3Text; private TextView mSourceText; private TextView mPpmText; private TextView mTitleView; private String mFolderName; private ProgressDialog progressDialog = null; private PowerManager.WakeLock wakeLock; private int count = 0; private int totalCount = 0; public DetailsFragment() { //to prevent menu loading more than once setRetainInstance(true); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setHasOptionsMenu(true); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_gallery, container, false); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.result, menu); } @Override public void onViewCreated(View view, Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); getActivity().setTitle(R.string.details); mContext = getActivity(); ListView listView = getListView(); mFolderName = getArguments().getString(PreferencesHelper.FOLDER_NAME_KEY); View header = getActivity().getLayoutInflater().inflate(R.layout.fragment_result, null, false); mPpmText = (TextView) header.findViewById(R.id.ppmText); mDateView = (TextView) header.findViewById(R.id.testDate); mTitleView = (TextView) header.findViewById(R.id.titleView); mResultTextView = (TextView) header.findViewById(R.id.result); mAddressText = (TextView) header.findViewById(R.id.address1); mAddress2Text = (TextView) header.findViewById(R.id.address2); mAddress3Text = (TextView) header.findViewById(R.id.address3); mSourceText = (TextView) header.findViewById(R.id.sourceType); final SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(mContext); mFolderName = getArguments().getString(PreferencesHelper.FOLDER_NAME_KEY); mId = getArguments().getLong(getString(R.string.currentTestId)); mLocationId = sharedPreferences.getLong(getString(R.string.currentLocationId), -1); File directory = new File(FileUtils.getStoragePath(getActivity(), mLocationId, mFolderName, false)); long locationId = sharedPreferences.getLong(getString(R.string.currentLocationId), -1); final ArrayList<String> imagePaths = FileUtils.getFilePaths(getActivity(), mFolderName, "/small/", locationId); if (mId > -1) { if (!directory.exists()) { Uri uri = ContentUris.withAppendedId(TestContentProvider.CONTENT_URI, mId); mContext.getContentResolver().delete(uri, null, null); goBack(); } else if (imagePaths.size() > 0) { displayResult(); } else { FileUtils.deleteFolder(getActivity(), mLocationId, mFolderName); goBack(); } } ListView drawerList = (ListView) getActivity().findViewById(R.id.navigation_drawer); drawerList.setItemChecked(-1, true); drawerList.setSelection(-1); assert listView != null; listView.addHeaderView(header); // Gradient shading for title assert header != null; //Collections.sort(imagePaths); GalleryListAdapter adapter = new GalleryListAdapter(getActivity(), mTestTypeId, mId, imagePaths, true); setListAdapter(adapter); Shader textShader = new LinearGradient(0, 0, 0, mTitleView.getPaint().getTextSize(), new int[] { getResources().getColor(R.color.textGradientStart), getResources().getColor(R.color.textGradientEnd) }, new float[] { 0, 1 }, Shader.TileMode.CLAMP); mTitleView.getPaint().setShader(textShader); } private void goBack() { FragmentManager fm = getFragmentManager(); try { if (fm.getBackStackEntryCount() > 0) { fm.popBackStack(); fm.executePendingTransactions(); } else { Fragment fragment = new HomeFragment(); FragmentManager fragmentManager = getFragmentManager(); FragmentTransaction ft = fragmentManager.beginTransaction(); ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE); ft.replace(R.id.container, fragment, "0"); ft.addToBackStack(null); ft.commit(); fm.executePendingTransactions(); ListView drawerList = (ListView) getActivity().findViewById(R.id.navigation_drawer); drawerList.setItemChecked(0, true); drawerList.setSelection(0); } } catch (Exception e) { e.printStackTrace(); } } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_sendResult: if (NetworkUtils.checkInternetConnection(mContext)) { if (progressDialog == null) { progressDialog = new ProgressDialog(getActivity()); progressDialog.setMessage(getString(R.string.sending)); progressDialog.setCancelable(false); } progressDialog.show(); postResult(mFolderName); } return true; case R.id.menu_delete: AlertUtils.askQuestion(getActivity(), R.string.delete, R.string.selectedWillBeDeleted, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { FileUtils.deleteFolder(getActivity(), mLocationId, mFolderName); Uri uri = ContentUris.withAppendedId(TestContentProvider.CONTENT_URI, mId); mContext.getContentResolver().delete(uri, null, null); double value = 0; int counter = 0; while (value != -1) { String key = String.format(getString(R.string.resultValueKey), mTestTypeId, mId, counter); if (PreferencesUtils.contains(mContext, key)) { PreferencesUtils.removeKey(mContext, key); } else { value = -1; } counter++; } goBack(); } }, null); return true; default: return super.onOptionsItemSelected(item); } } private void displayResult() { String[] projection = { TestTable.TABLE_TEST + "." + TestTable.COLUMN_ID, TestTable.TABLE_TEST + "." + TestTable.COLUMN_DATE, TestTable.COLUMN_RESULT, TestTable.COLUMN_TYPE, TestTable.COLUMN_FOLDER, LocationTable.COLUMN_NAME, LocationTable.COLUMN_STREET, LocationTable.COLUMN_TOWN, LocationTable.COLUMN_CITY, LocationTable.COLUMN_STATE, LocationTable.COLUMN_COUNTRY, LocationTable.COLUMN_STREET, LocationTable.COLUMN_SOURCE }; Log.d("Result", mId + " test"); Uri uri = ContentUris.withAppendedId(TestContentProvider.CONTENT_URI, mId); Cursor cursor = mContext.getContentResolver().query(uri, projection, null, null, null); cursor.moveToFirst(); if (cursor.getCount() > 0) { mAddressText.setText(cursor.getString(cursor.getColumnIndex(LocationTable.COLUMN_NAME)) + ", " + cursor.getString(cursor.getColumnIndex(LocationTable.COLUMN_STREET))); mAddress2Text.setText(cursor.getString(cursor.getColumnIndex(LocationTable.COLUMN_TOWN)) + ", " + cursor.getString(cursor.getColumnIndex(LocationTable.COLUMN_CITY))); mAddress3Text.setText(cursor.getString(cursor.getColumnIndex(LocationTable.COLUMN_STATE)) + ", " + cursor.getString(cursor.getColumnIndex(LocationTable.COLUMN_COUNTRY))); if (mAddress2Text.getText().equals(", ")) { mAddress2Text.setVisibility(View.GONE); } else { mAddress2Text.setVisibility(View.VISIBLE); } if (mAddress3Text.getText().equals(", ")) { mAddress3Text.setVisibility(View.GONE); } else { mAddress3Text.setVisibility(View.VISIBLE); } String[] sourceArray = getResources().getStringArray(R.array.source_types); int sourceType = cursor.getInt(cursor.getColumnIndex(LocationTable.COLUMN_SOURCE)); if (sourceType > -1) { mSourceText.setText(sourceArray[sourceType]); mSourceText.setVisibility(View.VISIBLE); } else { mSourceText.setVisibility(View.GONE); } Date date = new Date(cursor.getLong(cursor.getColumnIndex(TestTable.COLUMN_DATE))); SimpleDateFormat df = new SimpleDateFormat("EEE, dd MMM yyyy"); DateFormat tf = android.text.format.DateFormat.getTimeFormat(getActivity()); // Gets system TF String dateString = df.format(date.getTime()) + ", " + tf.format(date.getTime()); mTestType = DataHelper.getTestTitle(getActivity(), cursor.getInt(cursor.getColumnIndex(TestTable.COLUMN_TYPE))); mTestTypeId = cursor.getInt(cursor.getColumnIndex(TestTable.COLUMN_TYPE)); mTitleView.setText(mTestType); mDateView.setText(dateString); Double resultPpm = cursor.getDouble(cursor.getColumnIndex(TestTable.COLUMN_RESULT)); if (mTestTypeId == Globals.PH_INDEX) { mPpmText.setText(""); } else { mPpmText.setText(R.string.ppm); } if (resultPpm < 0) { mResultTextView.setText("0.0"); //mResultIcon.setVisibility(View.GONE); mPpmText.setVisibility(View.GONE); } else { mResultTextView.setText(String.format("%.2f", resultPpm)); Context context = getActivity().getApplicationContext(); int resourceAttribute; if (resultPpm <= Globals.FLUORIDE_MAX_DRINK) { resourceAttribute = R.attr.drink; } else if (resultPpm <= Globals.FLUORIDE_MAX_COOK) { resourceAttribute = R.attr.cook; } else if (resultPpm <= Globals.FLUORIDE_MAX_BATHE) { resourceAttribute = R.attr.bath; } else { resourceAttribute = R.attr.wash; } TypedArray a = context.getTheme().obtainStyledAttributes( ((MainApp) context.getApplicationContext()).CurrentTheme, new int[] { resourceAttribute }); int attributeResourceId = a.getResourceId(0, 0); //mResultIcon.setImageResource(attributeResourceId); //mResultIcon.setVisibility(View.VISIBLE); mPpmText.setVisibility(View.VISIBLE); } } cursor.close(); } public void postItem(final int newId, final ArrayList<String> filePaths) { TimeZone tz = TimeZone.getTimeZone("UTC"); final DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'"); df.setTimeZone(tz); File myFile = new File(filePaths.get(count)); if (myFile.getName().contains("-s")) { if (myFile.exists()) { try { RequestParams params = new RequestParams(); String date = df.format(DateUtils.getDateFromFilename(myFile.getName())); params.put("date", date); params.put("test", String.valueOf(newId)); params.put("image", myFile); WebClient.post("testresults", params, new AsyncHttpResponseHandler() { @Override public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) { count++; if (count >= totalCount) { getActivity().runOnUiThread(new Runnable() { public void run() { if (progressDialog != null) { progressDialog.dismiss(); } if (wakeLock != null && wakeLock.isHeld()) { wakeLock.release(); } AlertUtils.showMessage(getActivity(), R.string.success, R.string.result_sent); } }); } else { postItem(newId, filePaths); } } @Override public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) { Log.d(Globals.DEBUG_TAG, "fail: " + error.getMessage()); getActivity().runOnUiThread(new Runnable() { public void run() { if (progressDialog != null) { progressDialog.dismiss(); } if (wakeLock != null && wakeLock.isHeld()) { wakeLock.release(); } AlertUtils.showMessage(getActivity(), R.string.error, R.string.send_failed); //showInternetAlert(); } }); } }); } catch (Exception e) { e.printStackTrace(); } } } } public void postResult(String folderName) { RequestParams params = new RequestParams(); TimeZone tz = TimeZone.getTimeZone("UTC"); final DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'"); df.setTimeZone(tz); final ArrayList<String> filePaths = FileUtils.getFilePaths(getActivity(), folderName, "/small/", mLocationId); File myFile = new File(filePaths.get(0)); String date = df.format(DateUtils.getDateFromFilename(myFile.getName())); params.put("date", date); String deviceId = Build.MANUFACTURER + " " + Build.MODEL; if (deviceId.length() > 32) { deviceId = deviceId.substring(1, 32); } params.put("deviceId", deviceId); params.put("type", String.valueOf(mTestTypeId + 1)); if (wakeLock == null || !wakeLock.isHeld()) { PowerManager pm = (PowerManager) getActivity().getApplicationContext() .getSystemService(Context.POWER_SERVICE); wakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.ON_AFTER_RELEASE, "MyWakeLock"); wakeLock.acquire(); } WebClient.post("tests", params, new AsyncHttpResponseHandler() { @Override public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) { String response = responseBody == null ? null : new String(responseBody); try { JSONObject json = new JSONObject(response); final int newId = json.getInt("id"); if (filePaths.size() > 0) { count = 0; totalCount = filePaths.size(); postItem(newId, filePaths); } } catch (JSONException e) { e.printStackTrace(); } } @Override public void onFailure(int statusCode, Header[] headers, byte[] responseBody, final Throwable error) { Log.d(Globals.DEBUG_TAG, "fail: " + error.getMessage()); getActivity().runOnUiThread(new Runnable() { public void run() { if (progressDialog != null) { progressDialog.dismiss(); } if (wakeLock != null && wakeLock.isHeld()) { wakeLock.release(); } AlertUtils.showAlert(getActivity(), R.string.error, error.getMessage(), R.string.ok, null, null); } }); } }); } @Override public void onDestroyView() { super.onDestroyView(); //to prevent error: 'Cannot add header view to list setAdapter has already been called.' setListAdapter(null); } }