EX2 Layout stub

Layout/.gitignore

+# See https://github.com/github/gitignore/blob/master/Android.gitignore
+# Built application files
+*.apk
+*.ap_
+*.aab
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# IntelliJ
+*.iml
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/assetWizardSettings.xml
+.idea/dictionaries
+.idea/libraries
+.idea/caches
+
+# Keystore files
+# Uncomment the following lines if you do not want to check your keystore files in.
+#*.jks
+#*.keystore
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+
+# Google Services (e.g. APIs or Firebase)
+google-services.json
+
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json
+
+# fastlane
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots
+fastlane/test_output
+fastlane/readme.md
+
+.DS_Store

Layout/.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="NullableNotNullManager">
+    <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
+    <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
+    <option name="myNullables">
+      <value>
+        <list size="10">
+          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
+          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
+          <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
+          <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
+          <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
+          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.Nullable" />
+          <item index="6" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNullable" />
+          <item index="7" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.qual.Nullable" />
+          <item index="8" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NullableDecl" />
+          <item index="9" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NullableType" />
+        </list>
+      </value>
+    </option>
+    <option name="myNotNulls">
+      <value>
+        <list size="9">
+          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
+          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
+          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
+          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
+          <item index="4" class="java.lang.String" itemvalue="androidx.annotation.NonNull" />
+          <item index="5" class="java.lang.String" itemvalue="androidx.annotation.RecentlyNonNull" />
+          <item index="6" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.qual.NonNull" />
+          <item index="7" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NonNullDecl" />
+          <item index="8" class="java.lang.String" itemvalue="org.checkerframework.checker.nullness.compatqual.NonNullType" />
+        </list>
+      </value>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
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Layout/.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Layout.iml" filepath="$PROJECT_DIR$/Layout.iml" />
+      <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
+    </modules>
+  </component>
+</project>
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Layout/.idea/runConfigurations.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
+        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>
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Layout/app/.gitignore

+/build

Layout/app/build.gradle

+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "cse340.layout"
+        minSdkVersion 24
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    buildToolsVersion '28.0.3'
+    compileOptions {
+        sourceCompatibility = '1.8'
+        targetCompatibility = '1.8'
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support:design:28.0.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
+}

Layout/app/src/main/AndroidManifest.xml

+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="cse340.layout">
+
+    <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/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
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Layout/app/src/main/java/cse340/layout/MainActivity.java

+package cse340.layout;
+
+import android.os.Bundle;
+import android.support.annotation.IdRes;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.design.widget.BottomNavigationView;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+import android.widget.RelativeLayout;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * This is a driver activity for the Layout exercise. The main activity view consists of
+ * of tab bar located at the bottom of the window and a RelativeLayout where it displays
+ * the appropriate view for the selected tab. You will not need to modify this file as
+ * part of the assignment.
+ */
+
+public class MainActivity extends AppCompatActivity {
+    /** Default params for tab views, just match parents. */
+    public static final RelativeLayout.LayoutParams PARAMS = new RelativeLayout.LayoutParams(
+            RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT);
+
+    /**
+     * List of food_ drawables to display in part 3 and 4.
+     */
+    @IdRes
+    public static final int[] DEFAULT_IMAGES = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
+
+    public static final int V_MARGIN = 16;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        RelativeLayout contents = findViewById(R.id.tab_contents);
+        BottomNavigationView nav = findViewById(R.id.bottom_nav);
+
+        nav.setOnNavigationItemSelectedListener((item) -> {
+            contents.removeAllViews();
+            switch (item.getItemId()) {
+                case R.id.action_part_1:
+                    contents.addView(getLayoutInflater().inflate(R.layout.part1, null), PARAMS);
+                    return true;
+                case R.id.action_part_2:
+                    contents.addView(getLayoutInflater().inflate(R.layout.part2, null), PARAMS);
+                    return true;
+                case R.id.action_part_3:
+                    int vMargin = getIntent().getIntExtra("vMargin", V_MARGIN);
+                    contents.addView(new Part3View(this, getImageStrings(), vMargin), PARAMS);
+                    return true;
+                case R.id.action_part_4:
+                    vMargin = getIntent().getIntExtra("vMargin", V_MARGIN);
+                    contents.addView(new Part4View(this, getImageStrings(), vMargin), PARAMS);
+                    return true;
+                default:
+                    Log.e("CSE340","Unrecognized nav item selected: " + item.getTitle());
+            }
+            return false;
+        });
+
+        nav.setSelectedItemId(R.id.action_part_1);
+    }
+
+    @NonNull
+    private List<String> getImageStrings() {
+        int[] images = getIntent().getIntArrayExtra("images");
+        if (images == null) {
+            images = DEFAULT_IMAGES;
+        }
+
+        return Arrays.stream(images).mapToObj(id -> "food_" + id).collect(Collectors.toList());
+    }
+}

Layout/app/src/main/java/cse340/layout/Part3View.java

+package cse340.layout;
+
+import android.content.Context;
+import android.widget.ScrollView;
+
+import java.util.Collections;
+import java.util.List;
+
+public class Part3View extends ScrollView {
+    public Part3View(Context context) {
+        this(context, Collections.emptyList(), 0);
+    }
+
+    /**
+     * Create a ConstraintLayout to contain arbitrary number of images.
+     *
+     * For each image:
+     *     Create ImageView and add to ConstraintLayout (parent)
+     *     Constraint: Center image horizontally
+     *     Constraint: Follow previous image (or parent if first image) with (vMargin*i)dp margin
+     *                 between image i and i-1 (except vMargin from parent if first image).
+     *     NOTE: vMargin is in dp but margins are specified at runtime in px. Conversion between the
+     *           two is messy and will result in a double. Please ROUND the result of your
+     *           conversion. If you coerce the result to an integer some other way, your layout will
+     *           be different from ours!
+     *
+     * @param imageNames    List of drawable names, e.g. "food_0", to put in the view.
+     * @param vMargin   Base vertical margin for function. Default is 16dp.
+     */
+    public Part3View(Context context, List<String> imageNames, int vMargin) {
+        super(context);
+    }
+}
\ No newline at end of file

Layout/app/src/main/java/cse340/layout/Part4View.java

+package cse340.layout;
+
+import android.content.Context;
+import android.widget.ScrollView;
+
+import java.util.Collections;
+import java.util.List;
+
+public class Part4View extends ScrollView {
+    public Part4View(Context context) {
+        this(context, Collections.emptyList(), 0);
+    }
+
+    /**
+     * We want to create a Pinterest-link image flow container.
+     * <p>
+     * Inflate a ConstraintLayout from part4_grid.xml and two LinearLayouts inside to evenly divide
+     * the width. When the view is rotated, the columns should change width to maintain the 50%
+     * split. Add each image into one of the LinearLayout columns. Track the "height" of each column
+     * and insert the next image in the column with the lower height, or leftmost one if equal.
+     * <p>
+     * Note: Do not track the height of the Drawables in each column, but the height of the
+     * ImageView on the screen. This is done as high-resolution images should not affect the
+     * ordering more than lower ones.
+     * <p>
+     * Each image should be vMargin from the previous image vertically (or parent if first image).
+     * There should be a vMargin gap between the two columns, however, the center of the gap must be
+     * in the exact center of the screen. The bottom of the last image should be flush with the
+     * bottom of the column.
+     * <p>
+     * Each image should expand to fill the width as constrained by the margins described above. The
+     * height should be such that the aspect ratio matches the source drawable.
+     *
+     * @param imageNames List of drawable names, e.g. "food_0", to put in the view.
+     * @param vMargin    Base vertical margin for function. Default is 16dp.
+     */
+    public Part4View(Context context, List<String> imageNames, int vMargin) {
+        super(context);
+    }
+}
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