Question

这里是GitHub代码https://github.com/thanhniencung/LuckyWheel的链接我尝试使用这段代码更改画布的旋转

 private void drawText(Canvas canvas, float tmpAngle, float sweepAngle, String mStr) {
    Path path = new Path();
    path.addArc(mRange,tmpAngle,sweepAngle);

    float textWidth = mTextPaint.measureText(mStr);
    int hOffset = (int) (mRadius * Math.PI / mLuckyItemList.size()/2-textWidth/2);

    int vOffset = mRadius/2/4;

    canvas.drawTextOnPath(mStr, path, hOffset, vOffset, mTextPaint);
}

我想改变文字的方向，如下图所示

Answer 1

在XML代码中，您可以使用

更改轮播

import sys
import pygame

pygame.init()
clock = pygame.time.Clock()

# Some surfaces which serve as the player images.
PLAYER_IMAGE = pygame.Surface((30, 50))  # Idle player image.
PLAYER_IMAGE.fill((30, 150, 230))
IMAGE1 = pygame.Surface((30, 55))
IMAGE1.fill((60, 150, 180))
IMAGE2 = pygame.Surface((30, 60))
IMAGE2.fill((90, 150, 130))
IMAGE3 = pygame.Surface((30, 65))
IMAGE3.fill((120, 150, 80))
IMAGE4 = pygame.Surface((30, 70))
IMAGE4.fill((150, 150, 30))
PLAYER1_IMAGES_RIGHT = [IMAGE1,IMAGE2,IMAGE3,IMAGE4]

anim_index = 0

while True:
    screen = pygame.display.set_mode((1080, 400))
    background_image = pygame.Surface(screen.get_size())
    background_image.fill((30, 30, 30))
    background_rect = background_image.get_rect()

    player_image = PLAYER_IMAGE
    player_rect = player_image.get_rect(x=100, y=225)

    while True:
        # Handle the events.
        events = pygame.event.get()
        for event in events:
            if event.type == pygame.QUIT:
                pygame.quit()
                sys.exit()

        keys_pressed = pygame.key.get_pressed()
        if keys_pressed[pygame.K_d]:
            # Increment the index and change the player image.
            anim_index += 1
            anim_index %= len(PLAYER1_IMAGES_RIGHT)*4
            # * 4 in the line above and floor div 4 to slow the animation down.
            player_image = PLAYER1_IMAGES_RIGHT[anim_index//4]
        else:  # Switch back to the idle image.
            player_image = PLAYER_IMAGE
            # Reset the index, so that we don't start in the middle of the anim.
            anim_index = 0

        # Draw everything at the end.
        screen.blit(background_image, background_rect)
        # Just blit the current player image at the player_rect's topleft coords.
        screen.blit(player_image, player_rect)

        pygame.display.update()
        clock.tick(30)

但是，当图像位于底部时，您可能需要旋转此图像，然后当它位于顶部时再旋转它。因此，您可以随时以编程方式旋转它。

android:rotation="120"  (Then any angle you want positive or negative)

然后，如果你想将它重新回到起初的位置。你只需添加负号。

TextView textView = findViewById(R.id.textView);
ImageView imageView = findViewById(R.id.imageView);

textView.setRotation(120);
imageView.setRotation(120);

当然，角度取决于你。

Answer 2

在最新版本的LuckyWheel中，在初始化LuckyItem的数据时，可以设置luckyItem.secondaryText而不是luckyItem.topText的值，这样就可以得到想要的文字方向。

像这样：

        List<LuckyItem> data = new ArrayList<>();
        for (int i = 0; i < sectorsTitles.length; i++) {
            LuckyItem luckyItem = new LuckyItem();
            // luckyItem.topText = sectorsTitles[i]; // Don't use this
            luckyItem.secondaryText = sectorsTitles[i]; // Use this instead
            luckyItem.color = Color.parseColor(ROULETTE_COLORS[i]);
            data.add(luckyItem);
        }
        luckyWheelView.setData(data);

如何在运气轮（Android）中更改文本旋转

2 个答案: