Add checkbox

app/src/main/java/com/ridgebotics/ridgescout/ui/BackgroundView.java

@@ -0,0 +1,208 @@
+package com.ridgebotics.ridgescout.ui;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.ColorMatrixColorFilter;
+import android.graphics.LinearGradient;
+import android.graphics.Matrix;
+import android.graphics.Paint;
+import android.graphics.RectF;
+import android.graphics.Shader;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewTreeObserver;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Random;
+
+public class BackgroundView extends View {
+    private List<Circle> circles;
+    private Paint whitePaint;
+    private Paint greenPaint;
+    private Random random;
+
+    // Physics simulation constants
+    private static final float GRAVITY = 9.8f;
+    private static final float DAMPING = 0.5f;
+    private static final float CIRCLE_SPAWN_INTERVAL = 500; // milliseconds
+    private long lastSpawnTime = 0;
+
+    // Screen dimensions
+    private int screenWidth;
+    private int screenHeight;
+
+    public BackgroundView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        initialize();
+    }
+
+    private void initialize() {
+        // Setup paints
+        whitePaint = new Paint();
+        whitePaint.setColor(Color.WHITE);
+        whitePaint.setStyle(Paint.Style.STROKE);
+        whitePaint.setStrokeWidth(2);
+
+        greenPaint = new Paint();
+        greenPaint.setColor(Color.GREEN);
+        greenPaint.setStyle(Paint.Style.FILL);
+
+        circles = new ArrayList<>();
+        random = new Random();
+
+        // Get screen dimensions after layout
+        ViewTreeObserver vto = getViewTreeObserver();
+        vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+            @Override
+            public void onGlobalLayout() {
+                screenWidth = getWidth();
+                screenHeight = getHeight();
+                getViewTreeObserver().removeOnGlobalLayoutListener(this);
+            }
+        });
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+
+        // Spawn new circles periodically
+        long currentTime = System.currentTimeMillis();
+        if (currentTime - lastSpawnTime > CIRCLE_SPAWN_INTERVAL) {
+            spawnCircle();
+            lastSpawnTime = currentTime;
+        }
+
+        // First pass: detect all collisions
+        List<Collision> collisions = new ArrayList<>();
+        for (int i = 0; i < circles.size(); i++) {
+            Circle circle = circles.get(i);
+
+            // Wall and floor collisions
+            if (circle.x - circle.radius < 0) {
+                circle.x = circle.radius;
+                circle.velocityX *= -DAMPING;
+            }
+            if (circle.x + circle.radius > screenWidth) {
+                circle.x = screenWidth - circle.radius;
+                circle.velocityX *= -DAMPING;
+            }
+            if (circle.y + circle.radius > screenHeight) {
+                circle.y = screenHeight - circle.radius;
+                circle.velocityY = 0;
+            }
+
+            // Detect collisions with other circles
+            for (int j = i + 1; j < circles.size(); j++) {
+                Circle otherCircle = circles.get(j);
+                float dx = otherCircle.x - circle.x;
+                float dy = otherCircle.y - circle.y;
+                float distance = (float) Math.sqrt(dx * dx + dy * dy);
+
+                if (distance < circle.radius + otherCircle.radius) {
+                    collisions.add(new Collision(circle, otherCircle, dx, dy, distance));
+                }
+            }
+            
+            // Apply gravity
+            circle.velocityY += GRAVITY * 0.1f;
+        }
+
+        // Second pass: resolve collisions
+        for (Collision collision : collisions) {
+            Circle c1 = collision.circle1;
+            Circle c2 = collision.circle2;
+            float dx = collision.dx;
+            float dy = collision.dy;
+            float distance = collision.distance;
+
+            // Calculate overlap
+            float overlap = (c1.radius + c2.radius - distance) / 2;
+
+            // Separate circles
+            float separationX = overlap * dx / distance;
+            float separationY = overlap * dy / distance;
+
+            c1.x -= separationX;
+            c1.y -= separationY;
+            c2.x += separationX;
+            c2.y += separationY;
+
+            // Dampen velocities
+            c1.velocityX *= DAMPING;
+            c1.velocityY *= DAMPING;
+            c2.velocityX *= DAMPING;
+            c2.velocityY *= DAMPING;
+        }
+
+        // Draw and update circles
+        Iterator<Circle> iterator = circles.iterator();
+        while (iterator.hasNext()) {
+            Circle circle = iterator.next();
+
+            // Update position
+            circle.x += circle.velocityX;
+            circle.y += circle.velocityY;
+
+            // Draw circle
+            Paint paint = circle.isGreen ? greenPaint : whitePaint;
+            canvas.drawCircle(circle.x, circle.y, circle.radius, paint);
+
+            // Remove circles that have fallen off screen
+            if (circle.y > screenHeight + circle.radius) {
+                iterator.remove();
+            }
+        }
+
+        // Trigger redraw
+        invalidate();
+    }
+
+    // Collision tracking class
+    private static class Collision {
+        Circle circle1, circle2;
+        float dx, dy, distance;
+
+        Collision(Circle c1, Circle c2, float dx, float dy, float distance) {
+            this.circle1 = c1;
+            this.circle2 = c2;
+            this.dx = dx;
+            this.dy = dy;
+            this.distance = distance;
+        }
+    }
+
+    private void spawnCircle() {
+        // More likely to spawn white circles
+        boolean isGreen = random.nextFloat() < 0.2f;
+
+        float radius = isGreen ?
+                120:  // Green: 20-60
+                80;   // White: 10-30
+
+        float x = random.nextFloat() * screenWidth;
+        float velocityX = (random.nextFloat() - 0.5f) * 5;
+
+        circles.add(new Circle(x, -radius, radius, velocityX, 0, isGreen));
+    }
+
+    // Circle class to represent individual circles
+    private static class Circle {
+        float x, y;
+        float radius;
+        float velocityX, velocityY;
+        boolean isGreen;
+
+        Circle(float x, float y, float radius, float velocityX, float velocityY, boolean isGreen) {
+            this.x = x;
+            this.y = y;
+            this.radius = radius;
+            this.velocityX = velocityX;
+            this.velocityY = velocityY;
+            this.isGreen = isGreen;
+        }
+    }
+}

app/src/main/java/com/ridgebotics/ridgescout/ui/transfer/FileSelectorFragment.java

@@ -6,6 +6,7 @@ import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.CheckBox;
 import android.widget.FrameLayout;
 import android.widget.TableLayout;
 import android.widget.TableRow;
@@ -66,6 +67,10 @@ public class FileSelectorFragment extends Fragment {
 
             tr.setBackgroundColor(background_color);
 
+            CheckBox checkBox = new CheckBox(getContext());
+            checkBox.setChecked(true);
+            tr.addView(checkBox);
+
             TextView tv = new TextView(getContext());
             tv.setText(String.valueOf(files[i]));
             tv.setTextSize(20);
@@ -77,6 +82,7 @@ public class FileSelectorFragment extends Fragment {
                 selected_arr[fi] = sel;
 
                 tr.setBackgroundColor(sel ? background_color : unselected_background_color);
+                ((CheckBox) tr.getChildAt(0)).setChecked(sel);
             });
         }
 
@@ -88,9 +94,12 @@ public class FileSelectorFragment extends Fragment {
             Arrays.fill(selected_arr, Boolean.TRUE);
 
             for(int i = 0; i < files.length; i++){
-                View child = binding.fileSelectorTable.getChildAt(i);
+                TableRow child = (TableRow) binding.fileSelectorTable.getChildAt(i);
                 child.setBackgroundColor(background_color);
-                child.setVisibility(is_in_search_param(files[i], search_param, match_num_nums) ? View.VISIBLE : View.GONE);
+                boolean sel = is_in_search_param(files[i], search_param, match_num_nums);
+                child.setVisibility(sel ? View.VISIBLE : View.GONE);
+                ((CheckBox) child.getChildAt(0)).setChecked(sel);
+
             }
 
             return false;
@@ -103,6 +112,7 @@ public class FileSelectorFragment extends Fragment {
                 View child = binding.fileSelectorTable.getChildAt(i);
                 if(child.getVisibility() == View.VISIBLE && selected_arr[i])
                     filenames.add(files[i]);
+
             }
             onSelect.onSelect(get_bytes_of_filenames(filenames));
         });

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

@@ -16,7 +16,6 @@
     <ScrollView
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layout_marginBottom="53dp"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
@@ -41,6 +40,7 @@
         android:layout_height="48dp"
         android:background="#D33D3D3D"
         android:ems="10"
+        android:hint="Search"
         android:inputType="text"
         android:textColor="#FFFFFF"
         app:layout_constraintEnd_toEndOf="parent"