Initial commit with RearrangingGridLayout

.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

RearrangingGridLayout/.gitignore

@@ -0,0 +1 @@
+/build

RearrangingGridLayout/build.gradle

@@ -0,0 +1,41 @@
+plugins {
+    id 'com.android.library'
+}
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion "30.0.2"
+
+    defaultConfig {
+        minSdkVersion 21
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles "consumer-rules.pro"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.2.1'
+
+    implementation 'androidx.gridlayout:gridlayout:1.0.0' // GridLayout
+
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+}

RearrangingGridLayout/proguard-rules.pro

@@ -0,0 +1,21 @@
+# 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

RearrangingGridLayout/src/androidTest/java/com/isolpro/library/rearranginggridlayout/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.isolpro.library.rearranginggridlayout;
+
+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("com.isolpro.library.rearranginggridlayout.test", appContext.getPackageName());
+  }
+}

RearrangingGridLayout/src/main/AndroidManifest.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.isolpro.library.rearranginggridlayout">
+
+</manifest>

RearrangingGridLayout/src/main/java/com/isolpro/library/rearranginggridlayout/RearrangingGridLayout.java

@@ -0,0 +1,55 @@
+package com.isolpro.library.rearranginggridlayout;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+
+import androidx.gridlayout.widget.GridLayout;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class RearrangingGridLayout extends GridLayout {
+  private final List<View> views = new ArrayList<>();
+
+  public RearrangingGridLayout(Context context, AttributeSet attrs, int defStyle) {
+    super(context, attrs, defStyle);
+  }
+
+  public RearrangingGridLayout(Context context, AttributeSet attrs) {
+    this(context, attrs, 0);
+  }
+
+  public RearrangingGridLayout(Context context) {
+    this(context, null);
+  }
+
+  private void arrangeElements() {
+    removeAllViews();
+
+    for (int i = 0; i < views.size(); i++) {
+      if (views.get(i).getVisibility() != GONE)
+        addView(views.get(i));
+    }
+  }
+
+  public void saveViews() {
+    for (int i = 0; i < getChildCount(); i++) {
+      views.add(getChildAt(i));
+    }
+  }
+
+  public void hideViewAtIndex(int index) {
+    if (index >= 0 && index < views.size()) {
+      views.get(index).setVisibility(GONE);
+      arrangeElements();
+    }
+  }
+
+  public void showViewAtIndex(int index) {
+    if (index >= 0 && index < views.size()) {
+      views.get(index).setVisibility(VISIBLE);
+      arrangeElements();
+    }
+  }
+}

RearrangingGridLayout/src/test/java/com/isolpro/library/rearranginggridlayout/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.isolpro.library.rearranginggridlayout;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+  @Test
+  public void addition_isCorrect() {
+    assertEquals(4, 2 + 2);
+  }
+}

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

@@ -0,0 +1,39 @@
+plugins {
+    id 'com.android.application'
+}
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion "30.0.2"
+
+    defaultConfig {
+        applicationId "com.isolpro.rearranginggridlayoutlibrary"
+        minSdkVersion 21
+        targetSdkVersion 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
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.2.1'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+}

app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# 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

app/src/androidTest/java/com/isolpro/rearranginggridlayoutlibrary/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.isolpro.rearranginggridlayoutlibrary;
+
+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("com.isolpro.rearranginggridlayoutlibrary", appContext.getPackageName());
+  }
+}

app/src/main/AndroidManifest.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.isolpro.rearranginggridlayoutlibrary">
+
+  <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.RearrangingGridLayoutLibrary">
+    <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>