Trying to backport Ojo to Android 4.2

.idea/deploymentTargetDropDown.xml

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="deploymentTargetDropDown">
-    <targetSelectedWithDropDown>
-      <Target>
-        <type value="QUICK_BOOT_TARGET" />
-        <deviceKey>
-          <Key>
-            <type value="VIRTUAL_DEVICE_PATH" />
-            <value value="$USER_HOME$/.android/avd/Pixel_XL_Android_12.avd" />
-          </Key>
-        </deviceKey>
-      </Target>
-    </targetSelectedWithDropDown>
-    <timeTargetWasSelectedWithDropDown value="2023-03-10T07:05:42.920194Z" />
-  </component>
-</project>

app/build.gradle

@@ -7,7 +7,7 @@ android {
 
     defaultConfig {
         applicationId "it.danieleverducci.ojo"
-        minSdkVersion 21
+        minSdkVersion 15
         targetSdkVersion 33
         versionCode 7
         versionName "0.1.2"

app/src/main/java/it/danieleverducci/ojo/ui/SettingsFragment.java

@@ -1,6 +1,7 @@
 package it.danieleverducci.ojo.ui;
 
 import android.graphics.Color;
+import android.os.Build;
 import android.os.Bundle;
 
 import androidx.annotation.NonNull;
@@ -45,7 +46,9 @@ public class SettingsFragment extends Fragment {
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         // Setup toolbar
-        binding.settingsToolbar.getOverflowIcon().setTint(Color.WHITE);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            binding.settingsToolbar.getOverflowIcon().setTint(Color.WHITE);
+        }
         binding.settingsToolbar.inflateMenu(R.menu.settings_menu);
         MenuItem rotMenuItem = binding.settingsToolbar.getMenu().findItem(R.id.menuitem_allow_rotation);
         rotMenuItem.setTitle(((SettingsActivity)getActivity()).getRotationEnabledSetting() ? R.string.menuitem_deny_rotation : R.string.menuitem_allow_rotation);

app/src/main/res/drawable-anydpi-v17/ic_add.xml

@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#FFFFFF"
+    android:alpha="0.8">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>

app/src/main/res/drawable-anydpi-v17/ic_delete.xml

@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#FFFFFF"
+    android:alpha="0.8">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M6,19c0,1.1 0.9,2 2,2h8c1.1,0 2,-0.9 2,-2V7H6v12zM19,4h-3.5l-1,-1h-5l-1,1H5v2h14V4z"/>
+</vector>

app/src/main/res/drawable-anydpi-v17/ic_drag_handle.xml

@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#FFFFFF"
+    android:alpha="0.8">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M20,9H4v2h16V9zM4,15h16v-2H4V15z"/>
+</vector>

app/src/main/res/drawable-anydpi-v17/ic_network_camera.xml

@@ -0,0 +1,17 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#FFFFFF"
+    android:alpha="0.8">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M12,14m-3.2,0a3.2,3.2 0,1 1,6.4 0a3.2,3.2 0,1 1,-6.4 0"/>
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M16,3.33c2.58,0 4.67,2.09 4.67,4.67H22c0,-3.31 -2.69,-6 -6,-6v1.33M16,6c1.11,0 2,0.89 2,2h1.33c0,-1.84 -1.49,-3.33 -3.33,-3.33V6"/>
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M17,9c0,-1.11 -0.89,-2 -2,-2L15,4L9,4L7.17,6L4,6c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2L22,9h-5zM12,19c-2.76,0 -5,-2.24 -5,-5s2.24,-5 5,-5 5,2.24 5,5 -2.24,5 -5,5z"/>
+</vector>

app/src/main/res/drawable-anydpi-v17/ic_settings.xml

@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#FFFFFF"
+    android:alpha="0.8">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M19.14,12.94c0.04,-0.3 0.06,-0.61 0.06,-0.94c0,-0.32 -0.02,-0.64 -0.07,-0.94l2.03,-1.58c0.18,-0.14 0.23,-0.41 0.12,-0.61l-1.92,-3.32c-0.12,-0.22 -0.37,-0.29 -0.59,-0.22l-2.39,0.96c-0.5,-0.38 -1.03,-0.7 -1.62,-0.94L14.4,2.81c-0.04,-0.24 -0.24,-0.41 -0.48,-0.41h-3.84c-0.24,0 -0.43,0.17 -0.47,0.41L9.25,5.35C8.66,5.59 8.12,5.92 7.63,6.29L5.24,5.33c-0.22,-0.08 -0.47,0 -0.59,0.22L2.74,8.87C2.62,9.08 2.66,9.34 2.86,9.48l2.03,1.58C4.84,11.36 4.8,11.69 4.8,12s0.02,0.64 0.07,0.94l-2.03,1.58c-0.18,0.14 -0.23,0.41 -0.12,0.61l1.92,3.32c0.12,0.22 0.37,0.29 0.59,0.22l2.39,-0.96c0.5,0.38 1.03,0.7 1.62,0.94l0.36,2.54c0.05,0.24 0.24,0.41 0.48,0.41h3.84c0.24,0 0.44,-0.17 0.47,-0.41l0.36,-2.54c0.59,-0.24 1.13,-0.56 1.62,-0.94l2.39,0.96c0.22,0.08 0.47,0 0.59,-0.22l1.92,-3.32c0.12,-0.22 0.07,-0.47 -0.12,-0.61L19.14,12.94zM12,15.6c-1.98,0 -3.6,-1.62 -3.6,-3.6s1.62,-3.6 3.6,-3.6s3.6,1.62 3.6,3.6S13.98,15.6 12,15.6z"/>
+</vector>

app/src/main/res/drawable-anydpi/ic_eye.xml

@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#FFFFFF"
+    android:alpha="0.8">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M12,4.5C7,4.5 2.73,7.61 1,12c1.73,4.39 6,7.5 11,7.5s9.27,-3.11 11,-7.5c-1.73,-4.39 -6,-7.5 -11,-7.5zM12,17c-2.76,0 -5,-2.24 -5,-5s2.24,-5 5,-5 5,2.24 5,5 -2.24,5 -5,5zM12,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3 3,-1.34 3,-3 -1.34,-3 -3,-3z"/>
+</vector>

app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,13 +1,13 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="108dp"
     android:height="108dp"
-    android:viewportWidth="108"
-    android:viewportHeight="108"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
     android:tint="#FFFFFF">
-  <group android:scaleX="2.61"
-      android:scaleY="2.61"
-      android:translateX="22.68"
-      android:translateY="22.68">
+  <group android:scaleX="0.58"
+      android:scaleY="0.58"
+      android:translateX="5.04"
+      android:translateY="5.04">
     <path
         android:fillColor="@android:color/white"
         android:pathData="M12,4.5C7,4.5 2.73,7.61 1,12c1.73,4.39 6,7.5 11,7.5s9.27,-3.11 11,-7.5c-1.73,-4.39 -6,-7.5 -11,-7.5zM12,17c-2.76,0 -5,-2.24 -5,-5s2.24,-5 5,-5 5,2.24 5,5 -2.24,5 -5,5zM12,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3 3,-1.34 3,-3 -1.34,-3 -3,-3z"/>

app/src/main/res/layout/activity_main.xml

@@ -10,7 +10,8 @@
         android:id="@+id/fragment_surveillance"
         android:name="it.danieleverducci.ojo.ui.SurveillanceFragment"
         android:layout_width="match_parent"
-        android:layout_height="match_parent" />
+        android:layout_height="match_parent"
+        tools:layout="@layout/fragment_surveillance" />
 
     <com.google.android.material.floatingactionbutton.FloatingActionButton
         android:id="@+id/fab"
@@ -20,8 +21,8 @@
         android:layout_margin="@dimen/fab_margin"
         android:src="@drawable/ic_settings"
         app:srcCompat="@drawable/ic_settings"
-        app:tint="@color/fab_foreground"
-        android:tint="@color/fab_foreground"
+        app:tint="@color/white"
+        android:tint="@color/white"
         android:backgroundTint="@color/fab_background"
         android:hint="@string/fab_add_camera"
         android:contentDescription="@string/fab_add_camera"/>

app/src/main/res/layout/fragment_add_stream.xml

@@ -14,11 +14,12 @@
         android:gravity="center_horizontal">
 
         <ImageView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
+            android:layout_width="100dp"
+            android:layout_height="100dp"
+            android:padding="20dp"
             android:layout_marginBottom="50dp"
             android:background="@color/ic_launcher_background"
-            android:src="@drawable/ic_launcher_foreground"/>
+            android:src="@drawable/ic_eye"/>
 
         <TextView
             android:layout_width="match_parent"

app/src/main/res/layout/fragment_info.xml

@@ -11,10 +11,11 @@
         android:padding="50dp">
 
         <ImageView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
+            android:layout_width="100dp"
+            android:layout_height="100dp"
+            android:padding="20dp"
             android:background="@color/ic_launcher_background"
-            android:src="@drawable/ic_launcher_foreground"/>
+            android:src="@drawable/ic_eye"/>
 
         <View
             android:layout_width="match_parent"