Java/Quadratic-equation
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Павел Степанов
2021-08-17 11:22:23 +03:00
commit c84d2b6ee6
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1
app/.gitignore vendored Normal file
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/build

45
app/build.gradle Normal file
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plugins {
id 'com.android.application'
}
android {
compileSdk 30
defaultConfig {
applicationId "ru.samsung.itschool.mdev.homework"
minSdk 23
targetSdk 30
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
testOptions {
unitTests {
includeAndroidResources = true
}
}
}
dependencies {
implementation 'androidx.appcompat:appcompat:1.3.1'
implementation 'com.google.android.material:material:1.4.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
testImplementation "org.robolectric:robolectric:4.6.1"
testImplementation "androidx.arch.core:core-testing:2.1.0"
testImplementation "org.mockito:mockito-core:1.9.5"
}

21
app/proguard-rules.pro vendored Normal file
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# Add project specific ProGuard rules here.
# You can control the set of applied configuration files using the
# proguardFiles setting in build.gradle.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable
# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile

26
app/src/androidTest/java/ru/samsung/itschool/mdev/homework/ExampleInstrumentedTest.java Normal file
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package ru.samsung.itschool.mdev.homework;
import android.content.Context;
import androidx.test.platform.app.InstrumentationRegistry;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.*;
/**
* Instrumented test, which will execute on an Android device.
*
* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
*/
@RunWith(AndroidJUnit4.class)
public class ExampleInstrumentedTest {
@Test
public void useAppContext() {
// Context of the app under test.
Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
assertEquals("ru.samsung.itschool.mdev.homework", appContext.getPackageName());
}
}

23
app/src/main/AndroidManifest.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="ru.samsung.itschool.mdev.homework">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.HomeWork">
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

23
app/src/main/java/ru/samsung/itschool/mdev/homework/MainActivity.java Normal file
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package ru.samsung.itschool.mdev.homework;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
public EditText objectA, objectB, objectC;
public TextView res;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}

30
app/src/main/res/drawable-v24/ic_launcher_foreground.xml Normal file
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<vector xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:aapt="http://schemas.android.com/aapt"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
<aapt:attr name="android:fillColor">
<gradient
android:endX="85.84757"
android:endY="92.4963"
android:startX="42.9492"
android:startY="49.59793"
android:type="linear">
<item
android:color="#44000000"
android:offset="0.0" />
<item
android:color="#00000000"
android:offset="1.0" />
</gradient>
</aapt:attr>
</path>
<path
android:fillColor="#FFFFFF"
android:fillType="nonZero"
android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
android:strokeWidth="1"
android:strokeColor="#00000000" />
</vector>

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app/src/main/res/drawable/ic_launcher_background.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path
android:fillColor="#3DDC84"
android:pathData="M0,0h108v108h-108z" />
<path
android:fillColor="#00000000"
android:pathData="M9,0L9,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,0L19,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,0L29,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,0L39,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,0L49,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,0L59,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,0L69,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,0L79,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M89,0L89,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M99,0L99,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,9L108,9"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,19L108,19"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,29L108,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,39L108,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,49L108,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,59L108,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,69L108,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,79L108,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,89L108,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,99L108,99"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,29L89,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,39L89,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,49L89,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,59L89,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,69L89,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,79L89,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,19L29,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,19L39,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,19L49,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,19L59,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,19L69,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,19L79,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
</vector>

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app/src/main/res/layout/activity_main.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="24dp"
android:text="@string/title" />
<EditText
android:id="@+id/a"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/a"
android:minHeight="48dp" />
<EditText
android:id="@+id/b"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/b"
android:minHeight="48dp" />
<EditText
android:id="@+id/c"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/c"
android:minHeight="48dp" />
<Button
android:id="@+id/run"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="solve"
android:text="@string/calculate" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="24dp"
android:id="@+id/res"/>
</LinearLayout>

5
app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

5
app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

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app/src/main/res/values-night/themes.xml Normal file
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<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="Theme.HomeWork" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/purple_200</item>
<item name="colorPrimaryVariant">@color/purple_700</item>
<item name="colorOnPrimary">@color/black</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/teal_200</item>
<item name="colorSecondaryVariant">@color/teal_200</item>
<item name="colorOnSecondary">@color/black</item>
<!-- Status bar color. -->
<item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
</style>
</resources>

10
app/src/main/res/values/colors.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="purple_200">#FFBB86FC</color>
<color name="purple_500">#FF6200EE</color>
<color name="purple_700">#FF3700B3</color>
<color name="teal_200">#FF03DAC5</color>
<color name="teal_700">#FF018786</color>
<color name="black">#FF000000</color>
<color name="white">#FFFFFFFF</color>
</resources>

8
app/src/main/res/values/strings.xml Normal file
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<resources>
<string name="app_name">HomeWork</string>
<string name="title">Решить уравнение a*x*x+bx+c=0</string>
<string name="a">Введите A</string>
<string name="b">Введите B</string>
<string name="c">Введите C</string>
<string name="calculate">Вычислить</string>
</resources>

16
app/src/main/res/values/themes.xml Normal file
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<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="Theme.HomeWork" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/purple_500</item>
<item name="colorPrimaryVariant">@color/purple_700</item>
<item name="colorOnPrimary">@color/white</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/teal_200</item>
<item name="colorSecondaryVariant">@color/teal_700</item>
<item name="colorOnSecondary">@color/black</item>
<!-- Status bar color. -->
<item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
</style>
</resources>

133
app/src/test/java/ru/samsung/itschool/mdev/homework/ExampleUnitTest.java Normal file
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package ru.samsung.itschool.mdev.homework;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.Robolectric;
import org.robolectric.RobolectricTestRunner;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import java.util.Random;
@RunWith(RobolectricTestRunner.class)
public class ExampleUnitTest {
public static final String ZERO = "0";
public static final String NEG_ONE_ = "-1.0";
public static final String ZERO_ = "0.0";
public static final String ONE_ = "1.0";
public static final String TWO_ = "2.0";
public static final String ANY = "any";
public static final String NONE = "none";
private MainActivity activity;
static StringBuffer sb;
static int salt;
@BeforeClass
public static void report() {
salt = new Random(System.currentTimeMillis()).nextInt(999);
sb = new StringBuffer();
sb.append(String.format("%03d", salt));
}
@Before
public void setup() {
activity = Robolectric.buildActivity(MainActivity.class)
.create().get();
}
@Test
public void testButton1() throws Exception {
try {
MainActivity activity = Robolectric.buildActivity(MainActivity.class)
.create().get();
Button view = activity.findViewById(R.id.run);
Assert.assertNotNull(view);
EditText et_a = activity.findViewById(R.id.a);
Assert.assertNotNull(et_a);
EditText et_b = activity.findViewById(R.id.b);
Assert.assertNotNull(et_b);
EditText et_c = activity.findViewById(R.id.c);
Assert.assertNotNull(et_c);
TextView tv = activity.findViewById(R.id.res);
Assert.assertNotNull(tv);
et_a.setText(ZERO);
et_b.setText(ZERO);
et_c.setText(ZERO);
view.performClick();
org.junit.Assert.assertEquals(tv.getText().toString(), ANY);
sb.append(",OK");
} catch (Throwable t) {
}
}
@Test
public void testButton2() throws Exception {
try {
MainActivity activity = Robolectric.buildActivity(MainActivity.class)
.create().get();
Button view = activity.findViewById(R.id.run);
Assert.assertNotNull(view);
EditText et_a = activity.findViewById(R.id.a);
Assert.assertNotNull(et_a);
EditText et_b = activity.findViewById(R.id.b);
Assert.assertNotNull(et_b);
EditText et_c = activity.findViewById(R.id.c);
Assert.assertNotNull(et_c);
TextView tv = activity.findViewById(R.id.res);
Assert.assertNotNull(tv);
et_a.setText(NEG_ONE_);
et_b.setText(TWO_);
et_c.setText(ZERO);
view.performClick();
String s[] = tv.getText().toString().trim().replaceAll(" +", " ").split(" ");
double r1 = Double.valueOf(s[0]);
double r2 = Double.valueOf(s[1]);
if (r1 > r2) {
org.junit.Assert.assertEquals(2, r1, 0.001);
org.junit.Assert.assertEquals(0, r2, 0.001);
} else {
org.junit.Assert.assertEquals(0, r1, 0.001);
org.junit.Assert.assertEquals(2, r2, 0.001);
}
sb.append(",OK");
} catch (Throwable t) {
}
}
@Test
public void testButton3() throws Exception {
try {
MainActivity activity = Robolectric.buildActivity(MainActivity.class)
.create().get();
Button view = activity.findViewById(R.id.run);
Assert.assertNotNull(view);
EditText et_a = activity.findViewById(R.id.a);
Assert.assertNotNull(et_a);
EditText et_b = activity.findViewById(R.id.b);
Assert.assertNotNull(et_b);
EditText et_c = activity.findViewById(R.id.c);
Assert.assertNotNull(et_c);
TextView tv = activity.findViewById(R.id.res);
Assert.assertNotNull(tv);
et_a.setText(ONE_);
et_b.setText(TWO_);
et_c.setText(TWO_);
view.performClick();
org.junit.Assert.assertEquals(tv.getText().toString(), NONE);
sb.append(",OK");
} catch (Throwable t) {
}
}
@AfterClass
public static void printResult() {
System.err.println("\n\n=============================\nВАШ РЕЗУЛЬТАТ: " + sb.toString().hashCode() + "" + salt + "\n=============================\n");
}
}