Java tutorial
/* * Copyright (C) 2017 Ashar Khan <ashar786khan@gmail.com> * * This file is part of Matrix Calculator. * * Matrix Calculator 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. * * Matrix Calculator 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 Matrix Calculator. If not, see <http://www.gnu.org/licenses/>. * */ package com.softminds.matrixcalculator.OperationFragments; import android.app.ProgressDialog; import android.content.ClipData; import android.content.ClipboardManager; import android.content.Context; import android.content.DialogInterface; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.annotation.Nullable; import android.support.v4.app.ListFragment; import android.support.v7.app.AlertDialog; import android.util.Log; import android.view.View; import android.widget.ListView; import android.widget.Toast; import com.softminds.matrixcalculator.MatrixV2; import com.softminds.matrixcalculator.MatrixAdapter; import com.softminds.matrixcalculator.R; import com.softminds.matrixcalculator.GlobalValues; import java.text.DecimalFormat; import java.util.ArrayList; @SuppressWarnings("ConstantConditions") public class TraceFragment extends ListFragment { ArrayList<MatrixV2> SquareList; String TAG = this.getClass().getSimpleName(); @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); SquareList = new ArrayList<>(); for (int i = 0; i < ((GlobalValues) getActivity().getApplication()).GetCompleteList().size(); i++) { if (((GlobalValues) getActivity().getApplication()).GetCompleteList().get(i).isSquareMatrix()) SquareList.add(((GlobalValues) getActivity().getApplication()).GetCompleteList().get(i)); } MatrixAdapter adapter = new MatrixAdapter(getContext(), R.layout.list_layout_fragment, SquareList); getListView().setDividerHeight(1); setListAdapter(adapter); } @Override public void onListItemClick(ListView l, View v, int position, long id) { ProgressDialog progressDialog = new ProgressDialog(getContext()); progressDialog.setMessage(getString(R.string.Calculating)); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressDialog.setIndeterminate(true); progressDialog.setCanceledOnTouchOutside(false); progressDialog.show(); RunToGetTrace(position, progressDialog); } private void RunToGetTrace(int position, ProgressDialog progressDialog) { double result = ((GlobalValues) getActivity().getApplication()).GetCompleteList().get(position).getTrace(); final String formatted = GetText(result); progressDialog.dismiss(); String formatted2 = getString(R.string.trace_is) + " " + formatted; new AlertDialog.Builder(getContext()).setCancelable(true).setMessage(formatted2) .setTitle(R.string.trace_text) .setPositiveButton(R.string.copy, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { ClipboardManager manager = (ClipboardManager) getContext() .getSystemService(Context.CLIPBOARD_SERVICE); ClipData data = ClipData.newPlainText("TRACE_RES", formatted); manager.setPrimaryClip(data); if (manager.hasPrimaryClip()) Toast.makeText(getContext(), R.string.CopyToClip, Toast.LENGTH_SHORT).show(); else Log.e(TAG, "Cannot Put Data to Clip"); dialog.dismiss(); } }).setNeutralButton(R.string.Done, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }).show(); } private String GetText(double res) { if (!PreferenceManager.getDefaultSharedPreferences(getContext()).getBoolean("DECIMAL_USE", true)) { DecimalFormat decimalFormat = new DecimalFormat("###############"); return decimalFormat.format(res); } else { switch (Integer.parseInt( PreferenceManager.getDefaultSharedPreferences(getContext()).getString("ROUNDIND_INFO", "0"))) { case 0: DecimalFormat zeroth = new DecimalFormat("########.######"); return zeroth.format(res); case 1: DecimalFormat single = new DecimalFormat("########.#"); return single.format(res); case 2: DecimalFormat Double = new DecimalFormat("########.##"); return Double.format(res); case 3: DecimalFormat triple = new DecimalFormat("########.###"); return triple.format(res); default: DecimalFormat fourth = new DecimalFormat("########.#####"); return fourth.format(res); } } } }