package com.sf.DarkCalculator;
import android.content.ClipboardManager;
import android.content.Context;
import android.os.Bundle;
import android.support.design.widget.Snackbar;
import android.support.design.widget.TabLayout;
import android.support.v4.view.GravityCompat;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AlertDialog;
import android.support.v7.widget.Toolbar;
import android.text.Editable;
import android.text.Spannable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.text.style.ForegroundColorSpan;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.GridView;
import android.widget.TextView;
import com.sf.ExpressionHandler.Constants;
import com.sf.ExpressionHandler.ExpressionHandler;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MainActivity extends BaseActivity {
public static MainActivity activity;
private Context context;
private Toolbar toolbar;
private EditText inText;
private TextView stateText;
private TextView outText;
private ViewPager drawerPager;
private DrawerLayout drawer;
private ArrayList<View> drawerPageList;
public FrameLayout delete;
private static final int[] XX = {1, 3, 1, 3};
private static final int[] YY = {6, 4, 5, 5};
private static final String[] OPERATOR = {"÷", "×", "-", "+", "%", ",", "i"};
private static final String[] OPERATOR_VICE = {"√", "^", "!", "()", "°", "∞", "x"};
private static final String[][] BUTTON = {
{"sqrt", "cbrt", "root", "rand", "randInt", "abs", "lg", "ln", "log",
"min", "max", "fact", "sin", "cos", "tan", "asin", "acos",
"atan", "re", "im", "arg", "norm", "reg", "conj", "diff",
"sum", "lim", "eval", "fzero", "integ", "exp", "gcd", "lcm",
"perm", "comb", "gamma", "round", "floor", "ceil", "sign",
"remn", "prime", "isPrime", "prec", "base"},
{"ans", "reg", "π", "e", "F", "h", "ћ", "γ", "φ", "c",
"N", "R", "K", "k", "G", "Φ", "true", "false", "me", "mn", "mp"}};
private static final String[][] BUTTON_VICE = {
{"平方根", "立方根", "开方", "随机复数", "随机整数", "绝对值", "常用对数", "自然对数", "对数",
"最小", "最大", "阶乘", "正弦", "余弦", "正切", "反正弦", "反余弦", "反正切", "实部",
"虚部", "辐角", "模长", "寄存", "共轭复数", "导函数", "累加求和", "极限", "求值",
"函数零点", "定积分", "e底指数", "最大公约", "最小公倍", "排列", "组合", "伽玛函数",
"四舍五入", "向下取整", "向上取整", "取正负号", "取余", "质数", "判断质数", "输出精度", "输出进制"},
{"上次运算", "寄存器", "圆周率", "自然底数", "法拉第", "普朗克", "约化普朗克",
"欧拉", "黄金分割", "光速", "阿伏伽德罗", "理想气体", "卡钦", "玻尔兹曼",
"万有引力", "磁通量子", "真", "假", "电子质量", "质子质量", "中子质量"}};
private static final Pattern FUNCTIONS_KEYWORDS = Pattern.compile(
"\\b(" + "sqrt|cbrt|root|rand|randInt|lg|ln|log|abs|min|max|fact|" +
"sin|cos|tan|asin|acos|atan|re|im|arg|norm|reg|conj|diff|" +
"sum|lim|eval|fzero|integ|exp|gcd|lcm|perm|comb|round|floor|" +
"ceil|sign|gamma|remn|prime|isPrime|prec|base|Γ" + ")\\b");
private static final Pattern CONSTANS_KEYWORDS2 = Pattern.compile(
"\\b(" + "ans|reg|true|false|me|mn|mp" + ")\\b");
private static final Pattern CONSTANS_KEYWORDS1 = Pattern.compile("[∞i°%πeFhћγφcNRkGΦ]");
private static final String[] FUNCTION_LIST = {"科学计算", "大数计算", "进制转换", "大写数字"};
private static final String[] NUMERIC = {
"7", "8", "9",
"4", "5", "6",
"1", "2", "3",
"·", "0", "=",
"A", "B", "C",
"D", "E", "F",
"⑵", "⑶", "⑷",
"⑸", "⑹", "⑺",
"⑻", "⑼", "⑽",
"⑾", "⑿", "⒀",
"⒁", "⒂", "⒃"};
@Override
protected void onCreate(Bundle savedInstanceState) {
activity = this;
context = this;
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initToolBar();
initEditText();
initTextView();
initDrawer();
initPages();
initTabs();
initDelete();
initSideBar();
initNumeric();
initOperator();
initFunction();
}
private void initDelete() {
delete = (FrameLayout) findViewById(R.id.delete);
delete.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Editable editable = inText.getText();
int index = inText.getSelectionStart();
int index2 = inText.getSelectionEnd();
if (index == index2) {
if (index == 0) return;
editable.delete(index - 1, index);
} else {
editable.delete(index, index2);
}
}
});
delete.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
ExpressionHandler.stop();
inText.setText(null);
return true;
}
});
}
private void initTextView() {
stateText = (TextView) findViewById(R.id.text_state);
stateText.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ExpressionHandler.stop();
stateText.setText(null);
}
});
outText = (TextView) findViewById(R.id.text_out);
outText.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ClipboardManager cmb = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
cmb.setText(rootValue);
Snackbar.make(v, "已复制运算结果", Snackbar.LENGTH_SHORT).show();
}
});
outText.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
ResultsActivity.actionStart(v.getContext(), rootValue);
return true;
}
});
}
private void initDrawer() {
drawer = (DrawerLayout) findViewById(R.id.drawer_main);
findViewById(R.id.drawer_right).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
drawer.openDrawer(GravityCompat.END);
}
});
}
private void initTabs() {
TabLayout tabs = (TabLayout) findViewById(R.id.tabs_main);
tabs.setupWithViewPager(drawerPager);
tabs.getTabAt(0).setText("函数");
tabs.getTabAt(1).setText("常数");
}
private void initPages() {
drawerPageList = new ArrayList<>();
for (int i = 0; i < 2; i++) {
GridView gridView = new GridView(this);
drawerPageList.add(gridView);
}
drawerPager = (ViewPager) findViewById(R.id.viewPager_drawer);
MainPagerAdapter drawerPagerAdapter = new MainPagerAdapter(drawerPageList);
drawerPager.setAdapter(drawerPagerAdapter);
drawerPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
if (position == 0) {
drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED, GravityCompat.END);
drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED, GravityCompat.START);
} else {
drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_OPEN, GravityCompat.END);
drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED, GravityCompat.START);
}
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
}
private void initSideBar() {
final GridView sideBar = (GridView) findViewById(R.id.sideBar);
sideBar.setNumColumns(XX[0]);
sideBar.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
switch (position) {
case 0:
break;
case 1:
BigDecimalActivity.actionStart(context);
break;
case 2:
BaseConversionActivity.actionStart(context);
break;
case 3:
CapitalMoneyActivity.actionStart(context);
break;
default:
Snackbar.make(sideBar, "功能还未完善", Snackbar.LENGTH_SHORT).show();
}
drawer.closeDrawer(GravityCompat.START);
}
});
GridViewAdapter sideBarAdapter = new GridViewAdapter(sideBar, Arrays.asList(FUNCTION_LIST),
null, R.layout.button_sidebar, YY[0]);
sideBar.setAdapter(sideBarAdapter);
}
private void initNumeric() {
GridView numericBar = (GridView) findViewById(R.id.bar_numeric);
numericBar.setNumColumns(XX[1]);
numericBar.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String str = position == 9 ? "." : NUMERIC[position];
if (str.equals("=")) {
if (calcThread != null) {
Snackbar.make(view, "请等待当前运算完成", Snackbar.LENGTH_SHORT)
.setAction("停止运算", new View.OnClickListener() {
@Override
public void onClick(View v) {
ExpressionHandler.stop();
}
}).show();
return;
}
outText.setTextColor(0xffbdbdbd);
stateText.setText("运算中...");
calcThread = new Calc(inText.getText().toString());
calcThread.start();
return;
}
modifyInText(str);
}
});
GridViewAdapter numericAdapter = new GridViewAdapter(numericBar, Arrays.asList(NUMERIC),
null, R.layout.button_numeric, YY[1]);
numericBar.setAdapter(numericAdapter);
}
private void initOperator() {
GridView operatorBar = (GridView) findViewById(R.id.bar_operator);
operatorBar.setNumColumns(XX[2]);
operatorBar.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String str = position == 0 ? "/" : OPERATOR[position];
modifyInText(position == 1 ? "•" : str);
}
});
operatorBar.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
modifyInText(OPERATOR_VICE[position]);
return true;
}
});
GridViewAdapter operatorAdapter = new GridViewAdapter(operatorBar, Arrays.asList(OPERATOR),
Arrays.asList(OPERATOR_VICE), R.layout.button_operator, YY[2]);
operatorBar.setAdapter(operatorAdapter);
}
private void initFunction() {
int i = 0;
for (View view : drawerPageList) {
GridView operatorProBar = (GridView) view;
operatorProBar.setNumColumns(XX[3]);
if (i == 0) {
operatorProBar.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
modifyInText((BUTTON[0][position].equals("gamma") ? "Γ" : BUTTON[0][position]) + "()");
}
});
operatorProBar.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
String text = BUTTON[0][position];
AlertDialog.Builder dialog = new AlertDialog.Builder(MainActivity.this);
dialog.setTitle(text);
dialog.setMessage(HelpUtil.getFunctionHelp(text));
dialog.setPositiveButton("确定", null);
dialog.show();
return true;
}
});
} else {
operatorProBar.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
modifyInText(BUTTON[1][position]);
}
});
}
int id = i == 0 ? R.layout.button_function : R.layout.button_constant;
GridViewAdapter operatorProAdapter = new GridViewAdapter(operatorProBar,
Arrays.asList(BUTTON[i++]), Arrays.asList(BUTTON_VICE[i - 1]), id, YY[3]);
operatorProBar.setAdapter(operatorProAdapter);
}
}
private void modifyInText(String str) {
int index = inText.getSelectionStart();
int index2 = inText.getSelectionEnd();
if (index == index2) {
inText.getText().insert(index, str);
} else {
inText.getText().replace(index, index2, str);
}
}
class FastCalc extends Thread implements Runnable {
private String exp;
public FastCalc(String exp) {
this.exp = exp;
}
@Override
public void run() {
final long t = System.currentTimeMillis();
final String[] value = ExpressionHandler.calculation(exp);
runOnUiThread(new Runnable() {
@Override
public void run() {
outText.setTextColor(0xffbdbdbd);
stateText.setText("运算结束，耗时 " + (System.currentTimeMillis() - t) + " 毫秒");
if (value[0].getBytes().length > 1000) {
outText.setText("数值太大，请长按此处显示结果");
} else
outText.setText(value[0]);
rootValue = value[0];
calcThread = null;
}
});
}
}
class Calc extends Thread implements Runnable {
private String exp;
public Calc(String exp) {
this.exp = exp;
}
@Override
public void run() {
final long t = System.currentTimeMillis();
final String[] value = ExpressionHandler.calculation(exp);
runOnUiThread(new Runnable() {
@Override
public void run() {
stateText.setText("运算结束，耗时 " + (System.currentTimeMillis() - t) + " 毫秒");
if (value[1].equals("true")) {
outText.setTextColor(0xffff4081);
outText.setText(value[0]);
} else {
Constants.setAns(value[0]);
if (value[0].getBytes().length > 1000) {
outText.setText("数值太大，请长按此处显示结果");
ResultsActivity.actionStart(context, value[0]);
} else
outText.setText(value[0]);
}
rootValue = value[0];
calcThread = null;
}
});
}
}
private boolean modified = true;
private int selection = 0;
private Thread calcThread;
private String rootValue;
private void initEditText() {
inText = (EditText) findViewById(R.id.editText);
AutofitHelper.create(inText).setMinTextSize(28).setMaxLines(1);
inText.requestFocus();
inText.requestFocusFromTouch();
inText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (TextUtils.isEmpty(s)) {
if (calcThread == null)
stateText.setText(null);
outText.setTextColor(0xffbdbdbd);
outText.setText(null);
rootValue = null;
return;
}
if (calcThread == null) {
stateText.setText("运算中...");
calcThread = new FastCalc(s.toString());
calcThread.start();
}
}
@Override
public void afterTextChanged(Editable s) {
if (!modified) return;
selection = inText.getSelectionStart();
s.clearSpans();
for (Matcher m = Pattern.compile("x").matcher(s); m.find(); )
s.setSpan(new ForegroundColorSpan(0xfff48fb1), m.start(), m.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
for (Matcher m = CONSTANS_KEYWORDS1.matcher(s); m.find(); )
s.setSpan(new ForegroundColorSpan(0xfffff59d), m.start(), m.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
for (Matcher m = CONSTANS_KEYWORDS2.matcher(s); m.find(); )
s.setSpan(new ForegroundColorSpan(0xfffff59d), m.start(), m.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
for (Matcher m = FUNCTIONS_KEYWORDS.matcher(s); m.find(); )
s.setSpan(new ForegroundColorSpan(0xffa5d6a7), m.start(), m.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
for (Matcher m = Pattern.compile("[()\\-*+.,/!^=å]").matcher(s); m.find(); )
s.setSpan(new ForegroundColorSpan(0xff81d4fa), m.start(), m.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
modified = false;
inText.setText(s);
modified = true;
if (selection >= 2 && s.toString().substring(selection - 2, selection).equals("()"))
selection--;
inText.setSelection(selection);
}
});
}
private void initToolBar() {
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
setTitle(null);
toolbar.setSubtitle("科学计算");
ActionBar actionBar = getSupportActionBar();
actionBar.setHomeAsUpIndicator(R.drawable.ic_menu);
}
private void setGodMode(boolean isGodMode) {
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
ActionBar actionBar = getSupportActionBar();
godMenuItem.setChecked(isGodMode);
if (isGodMode) {
actionBar.setDisplayHomeAsUpEnabled(false);
drawer.setVisibility(View.GONE);
Class<EditText> cls = EditText.class;
Method method;
try {
method = cls.getMethod("setShowSoftInputOnFocus", boolean.class);
method.setAccessible(true);
method.invoke(inText, true);
} catch (Exception e) {
e.printStackTrace();
}
imm.showSoftInput(inText, InputMethodManager.SHOW_FORCED);
} else {
actionBar.setDisplayHomeAsUpEnabled(true);
drawer.setVisibility(View.VISIBLE);
Class<EditText> cls = EditText.class;
Method method;
try {
method = cls.getMethod("setShowSoftInputOnFocus", boolean.class);
method.setAccessible(true);
method.invoke(inText, false);
} catch (Exception e) {
e.printStackTrace();
}
imm.hideSoftInputFromWindow(inText.getWindowToken(), 0);
}
}
private MenuItem godMenuItem;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
boolean isGodMode = preferences.getBoolean("godMode", false);
godMenuItem = menu.add("上帝输入").setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
boolean isGodMode = !item.isChecked();
preferences.edit().putBoolean("godMode", isGodMode).apply();
setGodMode(isGodMode);
return true;
}
}).setCheckable(true).setChecked(isGodMode);
setGodMode(isGodMode);
menu.add("帮助").setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
AlertDialog.Builder dialog = new AlertDialog.Builder(MainActivity.this);
dialog.setTitle("帮助")
.setMessage(R.string.app_help)
.setPositiveButton("确定", null)
.show();
return true;
}
});
menu.add("关于").setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
AboutActivity.actionStart(context);
return true;
}
});
menu.add("退出").setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
finish();
return true;
}
});
return true;
}
@Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.END)) {
drawerPager.setCurrentItem(0);
drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED, GravityCompat.END);
drawer.closeDrawer(GravityCompat.END);
return;
} else if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
return;
}
super.onBackPressed();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
if (drawer.isDrawerOpen(GravityCompat.END)) {
drawerPager.setCurrentItem(0);
drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED, GravityCompat.END);
drawer.closeDrawer(GravityCompat.END);
} else if (drawer.isDrawerOpen(GravityCompat.START))
drawer.closeDrawer(GravityCompat.START);
else
drawer.openDrawer(GravityCompat.START);
break;
}
return true;
}
}
