├── Calculator ├── .gitignore ├── .idea │ ├── compiler.xml │ ├── copyright │ │ └── profiles_settings.xml │ ├── encodings.xml │ ├── gradle.xml │ ├── misc.xml │ ├── modules.xml │ └── runConfigurations.xml ├── app │ ├── .gitignore │ ├── build.gradle │ ├── proguard-rules.pro │ └── src │ │ ├── androidTest │ │ └── java │ │ │ └── com │ │ │ └── example │ │ │ └── android │ │ │ └── calculator │ │ │ └── ExampleInstrumentedTest.java │ │ ├── main │ │ ├── AndroidManifest.xml │ │ ├── java │ │ │ └── com │ │ │ │ └── example │ │ │ │ └── android │ │ │ │ └── calculator │ │ │ │ └── MainActivity.java │ │ └── res │ │ │ ├── layout │ │ │ └── activity_main.xml │ │ │ ├── mipmap-hdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-mdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xxhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xxxhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ │ └── values │ │ │ ├── colors.xml │ │ │ ├── strings.xml │ │ │ └── styles.xml │ │ └── test │ │ └── java │ │ └── com │ │ └── example │ │ └── android │ │ └── calculator │ │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle │ └── wrapper │ │ ├── gradle-wrapper.jar │ │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle └── README.md /Calculator/.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/workspace.xml 5 | /.idea/libraries 6 | .DS_Store 7 | /build 8 | /captures 9 | .externalNativeBuild 10 | -------------------------------------------------------------------------------- /Calculator/.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /Calculator/.idea/copyright/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /Calculator/.idea/encodings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /Calculator/.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 17 | 18 | -------------------------------------------------------------------------------- /Calculator/.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 19 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 46 | 47 | 48 | 49 | 50 | 1.8 51 | 52 | 57 | 58 | 59 | 60 | 61 | 62 | -------------------------------------------------------------------------------- /Calculator/.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /Calculator/.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /Calculator/app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /Calculator/app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 25 5 | buildToolsVersion "25.0.0" 6 | defaultConfig { 7 | applicationId "com.example.android.calculator" 8 | minSdkVersion 16 9 | targetSdkVersion 25 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | compile fileTree(dir: 'libs', include: ['*.jar']) 24 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 25 | exclude group: 'com.android.support', module: 'support-annotations' 26 | }) 27 | compile 'com.android.support:appcompat-v7:25.1.0' 28 | compile 'com.android.support.constraint:constraint-layout:1.0.1' 29 | testCompile 'junit:junit:4.12' 30 | compile 'cn.fanrunqi:avatarimageviewlibrary:1.0.1' 31 | 32 | } 33 | -------------------------------------------------------------------------------- /Calculator/app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in F:\Android_SDK/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | 19 | # Uncomment this to preserve the line number information for 20 | # debugging stack traces. 21 | #-keepattributes SourceFile,LineNumberTable 22 | 23 | # If you keep the line number information, uncomment this to 24 | # hide the original source file name. 25 | #-renamesourcefileattribute SourceFile 26 | -------------------------------------------------------------------------------- /Calculator/app/src/androidTest/java/com/example/android/calculator/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.example.android.calculator; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumentation test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() throws Exception { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("com.example.android.calculator", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /Calculator/app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /Calculator/app/src/main/java/com/example/android/calculator/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.android.calculator; 2 | 3 | import android.content.res.Resources; 4 | import android.support.v7.app.AppCompatActivity; 5 | import android.os.Bundle; 6 | import android.view.View; 7 | import android.widget.Button; 8 | import android.widget.EditText; 9 | import android.widget.TextView; 10 | 11 | public class MainActivity extends AppCompatActivity { 12 | 13 | private Button zero; 14 | private Button one; 15 | private Button two; 16 | private Button three; 17 | private Button four; 18 | private Button five; 19 | private Button six; 20 | private Button seven; 21 | private Button eight; 22 | private Button nine; 23 | private Button add; 24 | private Button sub; 25 | private Button mul; 26 | private Button div; 27 | private Button equal; 28 | private Button clear; 29 | private TextView info; 30 | private TextView result; 31 | private final char ADDITION = '+'; 32 | private final char SUBTRACTION = '-'; 33 | private final char MULTIPLICATION = '*'; 34 | private final char DIVISION = '/'; 35 | private final char EQU = 0; 36 | private double val1 = Double.NaN; 37 | private double val2; 38 | private char ACTION; 39 | 40 | @Override 41 | protected void onCreate(Bundle savedInstanceState) { 42 | super.onCreate(savedInstanceState); 43 | setContentView(R.layout.activity_main); 44 | 45 | setupUIViews(); 46 | 47 | zero.setOnClickListener(new View.OnClickListener() { 48 | @Override 49 | public void onClick(View v) { 50 | info.setText(info.getText().toString() + "0"); 51 | } 52 | }); 53 | 54 | one.setOnClickListener(new View.OnClickListener() { 55 | @Override 56 | public void onClick(View v) { 57 | info.setText(info.getText().toString() + "1"); 58 | } 59 | }); 60 | 61 | two.setOnClickListener(new View.OnClickListener() { 62 | @Override 63 | public void onClick(View v) { 64 | info.setText(info.getText().toString() + "2"); 65 | } 66 | }); 67 | 68 | three.setOnClickListener(new View.OnClickListener() { 69 | @Override 70 | public void onClick(View v) { 71 | info.setText(info.getText().toString() + "3"); 72 | } 73 | }); 74 | 75 | four.setOnClickListener(new View.OnClickListener() { 76 | @Override 77 | public void onClick(View v) { 78 | info.setText(info.getText().toString() + "4"); 79 | } 80 | }); 81 | 82 | five.setOnClickListener(new View.OnClickListener() { 83 | @Override 84 | public void onClick(View v) { 85 | info.setText(info.getText().toString() + "5"); 86 | } 87 | }); 88 | 89 | six.setOnClickListener(new View.OnClickListener() { 90 | @Override 91 | public void onClick(View v) { 92 | info.setText(info.getText().toString() + "6"); 93 | } 94 | }); 95 | 96 | seven.setOnClickListener(new View.OnClickListener() { 97 | @Override 98 | public void onClick(View v) { 99 | info.setText(info.getText().toString() + "7"); 100 | } 101 | }); 102 | 103 | eight.setOnClickListener(new View.OnClickListener() { 104 | @Override 105 | public void onClick(View v) { 106 | info.setText(info.getText().toString() + "8"); 107 | } 108 | }); 109 | 110 | nine.setOnClickListener(new View.OnClickListener() { 111 | @Override 112 | public void onClick(View v) { 113 | info.setText(info.getText().toString() + "9"); 114 | } 115 | }); 116 | 117 | sub.setOnClickListener(new View.OnClickListener() { 118 | @Override 119 | public void onClick(View v) { 120 | compute(); 121 | ACTION = SUBTRACTION; 122 | result.setText(String.valueOf(val1) + "-"); 123 | info.setText(null); 124 | } 125 | }); 126 | 127 | add.setOnClickListener(new View.OnClickListener() { 128 | @Override 129 | public void onClick(View v) { 130 | compute(); 131 | ACTION = ADDITION; 132 | result.setText(String.valueOf(val1) + "+"); 133 | info.setText(null); 134 | } 135 | }); 136 | 137 | mul.setOnClickListener(new View.OnClickListener() { 138 | @Override 139 | public void onClick(View v) { 140 | compute(); 141 | ACTION = MULTIPLICATION; 142 | result.setText(String.valueOf(val1) + "*"); 143 | info.setText(null); 144 | } 145 | }); 146 | 147 | div.setOnClickListener(new View.OnClickListener() { 148 | @Override 149 | public void onClick(View v) { 150 | compute(); 151 | ACTION = DIVISION; 152 | result.setText(String.valueOf(val1) + "/"); 153 | info.setText(null); 154 | } 155 | }); 156 | 157 | equal.setOnClickListener(new View.OnClickListener() { 158 | @Override 159 | public void onClick(View v) { 160 | compute(); 161 | ACTION = EQU; 162 | result.setText(result.getText().toString() + String.valueOf(val2) + "=" + String.valueOf(val1)); 163 | // 5 + 4 = 9 164 | info.setText(null); 165 | } 166 | }); 167 | 168 | clear.setOnClickListener(new View.OnClickListener() { 169 | @Override 170 | public void onClick(View v) { 171 | if(info.getText().length() > 0){ 172 | CharSequence name = info.getText().toString(); 173 | info.setText(name.subSequence(0, name.length()-1)); 174 | } 175 | else{ 176 | val1 = Double.NaN; 177 | val2 = Double.NaN; 178 | info.setText(null); 179 | result.setText(null); 180 | } 181 | } 182 | }); 183 | 184 | } 185 | 186 | private void setupUIViews(){ 187 | 188 | one = (Button)findViewById(R.id.btn1); 189 | zero = (Button)findViewById(R.id.btn0); 190 | two = (Button)findViewById(R.id.btn2); 191 | three = (Button)findViewById(R.id.btn3); 192 | four = (Button)findViewById(R.id.btn4); 193 | five = (Button)findViewById(R.id.btn5); 194 | six = (Button)findViewById(R.id.btn6); 195 | seven = (Button)findViewById(R.id.btn7); 196 | eight = (Button)findViewById(R.id.btn8); 197 | nine = (Button)findViewById(R.id.btn9); 198 | add = (Button)findViewById(R.id.btnadd); 199 | sub = (Button)findViewById(R.id.btnsub); 200 | mul = (Button)findViewById(R.id.btnmul); 201 | div = (Button)findViewById(R.id.btndivide); 202 | equal = (Button)findViewById(R.id.btnequal); 203 | info = (TextView)findViewById(R.id.tvControl); 204 | result = (TextView)findViewById(R.id.tvResult); 205 | clear = (Button)findViewById(R.id.btnclear); 206 | } 207 | 208 | private void compute(){ 209 | if(!Double.isNaN(val1)){ 210 | val2 = Double.parseDouble(info.getText().toString()); 211 | 212 | switch(ACTION){ 213 | case ADDITION: 214 | val1 = val1 + val2; 215 | break; 216 | case SUBTRACTION: 217 | val1 = val1 - val2; 218 | break; 219 | case MULTIPLICATION: 220 | val1 = val1 * val2; 221 | break; 222 | case DIVISION: 223 | val1 = val1 / val2; 224 | break; 225 | case EQU: 226 | break; 227 | } 228 | } 229 | else{ 230 | val1 = Double.parseDouble(info.getText().toString()); 231 | } 232 | } 233 | } 234 | -------------------------------------------------------------------------------- /Calculator/app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 |