[rcore_android] Touching edge cannot be detected on Android

[blueloveTH]

Please, before submitting a new issue verify and check:

• I tested it on latest raylib version from master branch
• I checked there is no similar issue already reported
• I checked the documentation on the wiki
• My code has no errors or misuse of raylib

Issue description

I am using the latest master branch of raylib to develop my android game. However, I notice an issue. Touching edge of the screen cannot be detected by raylib, sometimes nothing happens and no flags can be observed including IsMouseButtonPressed(0) and IsMouseButtonReleased(0).

I ran the touch example on raylib's website with some modification (I added IsMouseButtonPressed(0) and IsMouseButtonReleased(0) to the main loop). You can see when I am clicking edges (right-bottom/left-bottom/bottom), android cursor shows (indicating my device and screen has no problem), but no event happens in raylib side.

Environment

OnePlus 8T - Android 14.0

Issue Screenshot

touch_edge_cannot_be_detected.mp4

Code Example

/*******************************************************************************************
*
*   raylib [core] example - Input Gestures Detection
*
*   Example originally created with raylib 1.4, last time updated with raylib 4.2
*
*   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
*   BSD-like license that allows static linking with closed source software
*
*   Copyright (c) 2016-2024 Ramon Santamaria (@raysan5)
*
********************************************************************************************/

#include "raylib.h"

#define MAX_GESTURE_STRINGS   20

//------------------------------------------------------------------------------------
// Program main entry point
//------------------------------------------------------------------------------------
int main(void)
{
    // Initialization
    //--------------------------------------------------------------------------------------
    const int screenWidth = 800;
    const int screenHeight = 450;

    InitWindow(screenWidth, screenHeight, "raylib [core] example - input gestures");

    Vector2 touchPosition = { 0, 0 };
    Rectangle touchArea = { 220, 10, screenWidth - 230.0f, screenHeight - 20.0f };

    int gesturesCount = 0;
    char gestureStrings[MAX_GESTURE_STRINGS][32];

    int currentGesture = GESTURE_NONE;
    int lastGesture = GESTURE_NONE;

    //SetGesturesEnabled(0b0000000000001001);   // Enable only some gestures to be detected

    SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
    //--------------------------------------------------------------------------------------

    // Main game loop
    while (!WindowShouldClose())    // Detect window close button or ESC key
    {
        // Update
        //----------------------------------------------------------------------------------
        lastGesture = currentGesture;
        currentGesture = GetGestureDetected();
        touchPosition = GetTouchPosition(0);

        if(IsMouseButtonPressed(0)){
            TextCopy(gestureStrings[gesturesCount], "MouseButtonPressed");
            gesturesCount++;
        }

        if(IsMouseButtonReleased(0)){
            TextCopy(gestureStrings[gesturesCount], "MouseButtonReleased");
            gesturesCount++;
        }

        if (CheckCollisionPointRec(touchPosition, touchArea) && (currentGesture != GESTURE_NONE))
        {
            if (currentGesture != lastGesture)
            {
                // Store gesture string
                switch (currentGesture)
                {
                    case GESTURE_TAP: TextCopy(gestureStrings[gesturesCount], "GESTURE TAP"); break;
                    case GESTURE_DOUBLETAP: TextCopy(gestureStrings[gesturesCount], "GESTURE DOUBLETAP"); break;
                    case GESTURE_HOLD: TextCopy(gestureStrings[gesturesCount], "GESTURE HOLD"); break;
                    case GESTURE_DRAG: TextCopy(gestureStrings[gesturesCount], "GESTURE DRAG"); break;
                    case GESTURE_SWIPE_RIGHT: TextCopy(gestureStrings[gesturesCount], "GESTURE SWIPE RIGHT"); break;
                    case GESTURE_SWIPE_LEFT: TextCopy(gestureStrings[gesturesCount], "GESTURE SWIPE LEFT"); break;
                    case GESTURE_SWIPE_UP: TextCopy(gestureStrings[gesturesCount], "GESTURE SWIPE UP"); break;
                    case GESTURE_SWIPE_DOWN: TextCopy(gestureStrings[gesturesCount], "GESTURE SWIPE DOWN"); break;
                    case GESTURE_PINCH_IN: TextCopy(gestureStrings[gesturesCount], "GESTURE PINCH IN"); break;
                    case GESTURE_PINCH_OUT: TextCopy(gestureStrings[gesturesCount], "GESTURE PINCH OUT"); break;
                    default: break;
                }

                gesturesCount++;
            }
        }

        // Reset gestures strings
        if (gesturesCount >= MAX_GESTURE_STRINGS)
        {
            for (int i = 0; i < MAX_GESTURE_STRINGS; i++) TextCopy(gestureStrings[i], "\0");

            gesturesCount = 0;
        }
        //----------------------------------------------------------------------------------

        // Draw
        //----------------------------------------------------------------------------------
        BeginDrawing();

            ClearBackground(RAYWHITE);

            DrawRectangleRec(touchArea, GRAY);
            DrawRectangle(225, 15, screenWidth - 240, screenHeight - 30, RAYWHITE);

            DrawText("GESTURES TEST AREA", screenWidth - 270, screenHeight - 40, 20, Fade(GRAY, 0.5f));

            for (int i = 0; i < gesturesCount; i++)
            {
                if (i%2 == 0) DrawRectangle(10, 30 + 20*i, 200, 20, Fade(LIGHTGRAY, 0.5f));
                else DrawRectangle(10, 30 + 20*i, 200, 20, Fade(LIGHTGRAY, 0.3f));

                if (i < gesturesCount - 1) DrawText(gestureStrings[i], 35, 36 + 20*i, 10, DARKGRAY);
                else DrawText(gestureStrings[i], 35, 36 + 20*i, 10, MAROON);
            }

            DrawRectangleLines(10, 29, 200, screenHeight - 50, GRAY);
            DrawText("DETECTED GESTURES", 50, 15, 10, GRAY);

            if (currentGesture != GESTURE_NONE) DrawCircleV(touchPosition, 30, MAROON);

        EndDrawing();
        //----------------------------------------------------------------------------------
    }

    // De-Initialization
    //--------------------------------------------------------------------------------------
    CloseWindow();        // Close window and OpenGL context
    //--------------------------------------------------------------------------------------
}

[blueloveTH]

Seems this is because android swipe gesture on edge...