UE和Android互相调用

// Fill out your copyright notice in the Description page of Project Settings. #include "PlashScreenUserWidget.h" #include "Components/Image.h" UPlashScreenUserWidget::UPlashScreenUserWidget(const FObjectInitializer& ObjectInitializer): UUserWidget(ObjectInitializer), BlackOverlayImage(nullptr), LogoImage(nullptr), FadeTime(1.0f), LogoDisplayTime(3.0f), CurrentFadingTime(0.0f), CurrentDisplayTime(0.0f), CurrentAnimationState(0), CurrentLogoIndex(0), IsClosing(false) { } void UPlashScreenUserWidget::NativeTick(const FGeometry& MyGeometry, float InDeltaTime) { switch(CurrentAnimationState) { case 0: { CurrentDisplayTime = 2.0f; CurrentAnimationState++; } break; case 1: { if (CurrentDisplayTime >= 0.0f) { CurrentDisplayTime -= InDeltaTime; } else { CurrentAnimationState++; } } break; case 2: { if (BlackOverlayImage != nullptr) { BlackOverlayImage->SetVisibility(ESlateVisibility::Visible); } if (LogoImage != nullptr) { if (CurrentLogoIndex < Images.Num()) { LogoImage->SetBrushFromTexture(Images[CurrentLogoIndex++],true); } LogoImage->SetVisibility(ESlateVisibility::Visible); } CurrentFadingTime = FadeTime; CurrentAnimationState++; } break; case 3: { float CurrentBlackOverlayOpacity = 1.0f; if (CurrentFadingTime >=0.0f && FadeTime >= 0.0f) { CurrentFadingTime -= InDeltaTime; CurrentBlackOverlayOpacity = FMath::Lerp(0.0f, 1.0f, CurrentFadingTime / FadeTime); } else { CurrentFadingTime = 0.0f; CurrentBlackOverlayOpacity = 0.0f; CurrentDisplayTime = LogoDisplayTime; CurrentAnimationState++; } if (BlackOverlayImage != nullptr) { BlackOverlayImage->SetOpacity(CurrentBlackOverlayOpacity); } } break; case 4: { if (CurrentDisplayTime >= 0.0f && LogoDisplayTime >= 0.0f) { CurrentDisplayTime -= InDeltaTime; } else { CurrentDisplayTime = 0.0f; CurrentFadingTime = FadeTime; CurrentAnimationState++; } } break; case 5: { float CurrentBlackOverlayOpacity = 1.0f; if (CurrentFadingTime >= 0.0f && FadeTime >= 0.0f) { CurrentFadingTime -= InDeltaTime; CurrentBlackOverlayOpacity = FMath::Lerp(1.0f, 0.0f, CurrentFadingTime / FadeTime); } else { CurrentFadingTime = 0.0f; CurrentBlackOverlayOpacity = 1.0f; CurrentDisplayTime = LogoDisplayTime; if (CurrentLogoIndex < Images.Num()) { CurrentAnimationState = 2; } else { CurrentAnimationState++; } } if (BlackOverlayImage != nullptr) { BlackOverlayImage->SetOpacity(CurrentBlackOverlayOpacity); } } break; case 6: { } break; } return Super::NativeTick(MyGeometry, InDeltaTime); } FReply UPlashScreenUserWidget::NativeOnMouseButtonDown(const FGeometry& InGeometry, const FPointerEvent& InMouseEvent) { if (!IsClosing) { IsClosing = true; CurrentFadingTime = FadeTime; CurrentAnimationState = 3; } return Super::NativeOnMouseButtonDown(InGeometry, InMouseEvent); } FReply UPlashScreenUserWidget::NativeOnKeyUp(const FGeometry& InGeometry, const FKeyEvent& InKeyEvent) { if (!IsClosing) { IsClosing = true; CurrentFadingTime = FadeTime; CurrentAnimationState = 3; } return Super::NativeOnKeyUp(InGeometry, InKeyEvent); }