Java tutorial
/* * Copyright (C) 2013 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.eugene.fithealthmaingit.UI.NavFragments; import android.app.Activity; import android.content.SharedPreferences; import android.graphics.Paint; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v7.widget.Toolbar; import android.text.format.DateFormat; import android.view.LayoutInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.ListView; import android.widget.TextView; import com.db.chart.Tools; import com.db.chart.model.LineSet; import com.db.chart.view.LineChartView; import com.db.chart.view.XController; import com.db.chart.view.YController; import com.eugene.fithealthmaingit.Custom.TextViewFont; import com.eugene.fithealthmaingit.Databases_Adapters_ListViews.LogWeight.WeightLog; import com.eugene.fithealthmaingit.Databases_Adapters_ListViews.LogWeight.WeightLogAdapter; import com.eugene.fithealthmaingit.R; import com.eugene.fithealthmaingit.UI.Dialogs.UpdateWeightDialogFragment; import com.eugene.fithealthmaingit.Utilities.Equations; import com.eugene.fithealthmaingit.Utilities.Globals; import com.eugene.fithealthmaingit.Utilities.SetListHeight.SetWeightListHeight; import org.apache.commons.math3.util.Precision; import java.text.DecimalFormat; public class FragmentWeight extends Fragment { private View v; DecimalFormat df = new DecimalFormat("0"); WeightLogAdapter weightLogAdapter; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { v = inflater.inflate(R.layout.fragment_weight, container, false); findViews(); chart(); return v; } ListView listWeight; int max; LineChartView mLineChart; int min; float goalWeightLine; int goalPosition; double weightPerWeek; double timeTillGoal; private void findViews() { Toolbar mToolbar = (Toolbar) v.findViewById(R.id.toolbar_weight); TextViewFont txtTitle = (TextViewFont) v.findViewById(R.id.txtTitle); txtTitle.setText("Weight"); mToolbar.inflateMenu(R.menu.menu_weight); mToolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem menuItem) { if (menuItem.getItemId() == R.id.action_create) { FragmentManager fm = getActivity().getSupportFragmentManager(); UpdateWeightDialogFragment suggestionFragment = new UpdateWeightDialogFragment(); suggestionFragment.show(fm, "Fragment"); } return false; } }); mToolbar.setNavigationIcon(R.mipmap.ic_menu); mToolbar.setNavigationOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mCallbacks.openNavigationDrawer(); } }); weightLogAdapter = new WeightLogAdapter(getActivity(), 0, WeightLog.all()); listWeight = (ListView) v.findViewById(R.id.listWeight); listWeight.setAdapter(weightLogAdapter); SetWeightListHeight.setListViewHeight(listWeight); WeightLog weightLogStart = weightLogAdapter.getItem(0); TextView startWeight = (TextView) v.findViewById(R.id.startWeight); startWeight.setText(df.format(weightLogStart.getCurrentWeight()) + " lbs"); WeightLog weightLogCurrent = weightLogAdapter.getItem(weightLogAdapter.getCount() - 1); TextView currentWeight = (TextView) v.findViewById(R.id.currentWeight); currentWeight.setText(df.format(weightLogCurrent.getCurrentWeight()) + " lbs"); double totalWeightLoss = weightLogStart.getCurrentWeight() - weightLogCurrent.getCurrentWeight(); TextView lossWeight = (TextView) v.findViewById(R.id.lossWeight); lossWeight.setText(df.format(totalWeightLoss) + " lbs"); SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity()); TextView goalWeight = (TextView) v.findViewById(R.id.goalWeight); goalWeight.setText(sharedPreferences.getString(Globals.USER_WEIGHT_GOAL, "") + " lbs"); double weightRemaining = weightLogCurrent.getCurrentWeight() - Double.valueOf(sharedPreferences.getString(Globals.USER_WEIGHT_GOAL, "")); TextView remainderWeight = (TextView) v.findViewById(R.id.remainderWeight); remainderWeight.setText(df.format(weightRemaining) + " lbs"); max = (int) Precision.round(weightLogStart.getCurrentWeight(), -1) + 10; if (Double.valueOf(sharedPreferences.getString(Globals.USER_WEIGHT_GOAL, "")) < weightLogCurrent .getCurrentWeight()) { min = (int) Precision.round(Integer.valueOf(sharedPreferences.getString(Globals.USER_WEIGHT_GOAL, "")), -1) - 10; } else { min = (int) Precision.round(weightLogCurrent.getCurrentWeight(), -1) - 10; } goalWeightLine = Float.valueOf(sharedPreferences.getString(Globals.USER_WEIGHT_GOAL, "")); goalPosition = Integer.valueOf(sharedPreferences.getString(Globals.USER_WEIGHT_LOSS_GOAL, "")); if (goalPosition == 0 || goalPosition == 8) { weightPerWeek = 2; } if (goalPosition == 1 || goalPosition == 7) { weightPerWeek = 1.5; } if (goalPosition == 2 || goalPosition == 6) { weightPerWeek = 1; } if (goalPosition == 3 || goalPosition == 5) { weightPerWeek = .5; } if (goalPosition == 4) { weightPerWeek = 0; } timeTillGoal = weightRemaining / weightPerWeek; TextView timeRem = (TextView) v.findViewById(R.id.timeRem); timeRem.setText(df.format(timeTillGoal) + " Week(s)"); } Paint mLineGridPaint; LineSet dataSet; float[] simpleArray; String[] dates; private void chart() { mLineChart = (LineChartView) v.findViewById(R.id.linechart); mLineChart.reset(); dataSet = new LineSet(); simpleArray = new float[weightLogAdapter.getCount()]; dates = new String[weightLogAdapter.getCount()]; for (int i = 0; i < weightLogAdapter.getCount(); i++) { WeightLog weightLogWeight = weightLogAdapter.getItem(i); simpleArray[i] = (float) weightLogWeight.getCurrentWeight(); dates[i] = String.valueOf(DateFormat.format("MMM dd", weightLogWeight.getDate())); } dataSet.addPoints(dates, simpleArray); mLineGridPaint = new Paint(); mLineGridPaint.setColor(this.getResources().getColor(R.color.accent)); mLineGridPaint.setStyle(Paint.Style.FILL); mLineGridPaint.setAntiAlias(true); /** * Controlling the data set and setting it to the chart. */ dataSet.setDots(true).setDotsColor(this.getResources().getColor(R.color.primary)) .setDotsRadius(Tools.fromDpToPx(3)).setDotsStrokeThickness(Tools.fromDpToPx(1)) .setDotsStrokeColor(this.getResources().getColor(R.color.primary)) .setLineColor(this.getResources().getColor(R.color.primary_dark)) .setLineThickness(Tools.fromDpToPx(1)).beginAt(0).endAt(weightLogAdapter.getCount()); mLineChart.addData(dataSet); mLineChart.setBorderSpacing(Tools.fromDpToPx(0)).setGrid(LineChartView.GridType.HORIZONTAL, mLineGridPaint) .setXAxis(false).setXLabels(XController.LabelPosition.OUTSIDE).setYAxis(false) .setYLabels(YController.LabelPosition.OUTSIDE).setAxisBorderValues(min, max, 5) .setLabelColor(this.getResources().getColor(R.color.text_color)) .setLabelsFormat(new DecimalFormat("##' lbs'")).show(); Paint paint = new Paint(); paint.setStrokeWidth((float) Equations.dpToPx(getActivity(), 2)); paint.setColor(getActivity().getResources().getColor(R.color.green)); mLineChart.setThresholdLine(goalWeightLine, paint); } private FragmentCallbacks mCallbacks; public interface FragmentCallbacks { void openNavigationDrawer(); } @Override public void onAttach(Activity activity) { super.onAttach(activity); try { mCallbacks = (FragmentCallbacks) activity; } catch (ClassCastException e) { throw new ClassCastException("Activity must implement Fragment One."); } } @Override public void onDetach() { super.onDetach(); mCallbacks = null; } }