initial commit

.gitignore

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+# Built application files
+*.apk
+*.aar
+*.ap_
+*.aab
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+
+release/
+/app/release/
+
+# 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/
+
+# Keystore files
+*.jks
+*.keystore
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+.cxx/
+
+# 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
+
+# Version control
+vcs.xml
+
+# lint
+lint/intermediates/
+lint/generated/
+lint/outputs/
+lint/tmp/
+# lint/reports/
+
+# Android Profiling
+*.hprof
+
+# OS-specific files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db

README.md

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+VIRec

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 30
+    defaultConfig {
+        applicationId "io.a3dv.VIRec"
+        minSdkVersion 23
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+        debug {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+    implementation 'com.jakewharton.timber:timber:4.7.1'
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
+    implementation "androidx.preference:preference:1.1.1"
+    implementation 'androidx.appcompat:appcompat:1.3.1'
+}

app/proguard-rules.pro

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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

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="io.a3dv.VIRec">
+
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.CAMERA" />
+
+    <uses-feature
+        android:glEsVersion="0x00020000"
+        android:required="true" />
+
+    <application
+        android:allowBackup="true"
+        android:fullBackupContent="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.AppCompat">
+        <activity
+            android:name=".SettingsActivity"
+            android:exported="true"
+            android:label="@string/title_settings"
+            android:parentActivityName="io.a3dv.VIRec.CameraActivity" />
+        <activity
+            android:name=".ImuViewerActivity"
+            android:exported="true"
+            android:label="@string/title_imu"
+            android:parentActivityName="io.a3dv.VIRec.CameraActivity" />
+        <activity
+            android:name=".AboutActivity"
+            android:exported="true"
+            android:label="@string/title_about"
+            android:parentActivityName="io.a3dv.VIRec.CameraActivity" />
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".CameraActivity"
+            android:configChanges="keyboardHidden|orientation|screenSize"
+            android:screenOrientation="portrait"
+            tools:ignore="LockedOrientationActivity" />
+    </application>
+
+</manifest>

app/src/main/java/io/a3dv/VIRec/AboutActivity.java

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+package io.a3dv.VIRec;
+
+import android.os.Bundle;
+import android.text.Spanned;
+import android.text.method.LinkMovementMethod;
+import android.widget.TextView;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+public class AboutActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.about_activity);
+
+        TextView hyperlink = findViewById(R.id.linkTextView);
+        String linkText = getResources().getString(R.string.link_foreword);
+        Spanned text = FileHelper.fromHtml(linkText + " " +
+                "<a href='https://github.com/A3DV/VIRec'>GitHub</a>.");
+        hyperlink.setMovementMethod(LinkMovementMethod.getInstance());
+        hyperlink.setText(text);
+
+        TextView versionName = findViewById(R.id.versionText);
+        versionName.setText(getString(R.string.versionName, BuildConfig.VERSION_NAME));
+    }
+}

app/src/main/java/io/a3dv/VIRec/AspectFrameLayout.java

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+package io.a3dv.VIRec;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.FrameLayout;
+
+import timber.log.Timber;
+
+/**
+ * Layout that adjusts to maintain a specific aspect ratio.
+ */
+public class AspectFrameLayout extends FrameLayout {
+    private double mTargetAspect = -1.0;        // initially use default window size
+
+    public AspectFrameLayout(Context context) {
+        super(context);
+    }
+
+    public AspectFrameLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    /**
+     * Sets the desired aspect ratio. The value is <code>width / height</code>.
+     */
+    public void setAspectRatio(double aspectRatio) {
+        if (aspectRatio < 0) {
+            throw new IllegalArgumentException();
+        }
+        Timber.d("Setting aspect ratio to %f (was %f)",  aspectRatio, mTargetAspect);
+        if (mTargetAspect != aspectRatio) {
+            mTargetAspect = aspectRatio;
+            requestLayout();
+        }
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        // Target aspect ratio will be < 0 if it hasn't been set yet.  In that case,
+        // we just use whatever we've been handed.
+        if (mTargetAspect > 0) {
+            int initialWidth = MeasureSpec.getSize(widthMeasureSpec);
+            int initialHeight = MeasureSpec.getSize(heightMeasureSpec);
+
+            // factor the padding out
+            int horizPadding = getPaddingLeft() + getPaddingRight();
+            int vertPadding = getPaddingTop() + getPaddingBottom();
+            initialWidth -= horizPadding;
+            initialHeight -= vertPadding;
+
+            double viewAspectRatio = (double) initialWidth / initialHeight;
+            double aspectDiff = mTargetAspect / viewAspectRatio - 1;
+
+            if (Math.abs(aspectDiff) >= 0.01) {
+                if (aspectDiff > 0) {
+                    // limited by narrow width; restrict height
+                    initialHeight = (int) (initialWidth / mTargetAspect);
+                } else {
+                    // limited by short height; restrict width
+                    initialWidth = (int) (initialHeight * mTargetAspect);
+                }
+                initialWidth += horizPadding;
+                initialHeight += vertPadding;
+                widthMeasureSpec = MeasureSpec.makeMeasureSpec(initialWidth, MeasureSpec.EXACTLY);
+                heightMeasureSpec = MeasureSpec.makeMeasureSpec(initialHeight, MeasureSpec.EXACTLY);
+            }
+        }
+
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+    }
+}