カスタム UIView コントローラー内でそれを実装する PaintCode progressView を描画していくつかのテストを行っています...手順は、UIView オブジェクトを配置し、そのクラスの progressview を変更して、viewcontroller のビュー内でカスタマイズを呼び出すことをよく知っています。
これまでのところ、私の唯一の問題は、プロジェクトをコンパイルするときに、常に灰色の円または長方形 (ビューコントローラーに含まれるビューのサイズに応じて) が表示されることです。
私が挿入した唯一のコードは単純なカスタマイズ ファイル ProgressView (サブクラス ProgressView) であるため、どこが間違っているのかわかりません。ビューコントローラーには何もありません...
私はチュートリアルに従い、「これ http://www.raywenderlich.com/it/44556/paintcode-tutorial-progress-bar-custom
私の問題を解決する方法を知っていますか？Rory さん、今後ともよろしくお願いいたします。
- (void)drawRect:(CGRect)rect
{
//// General Declarations
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = UIGraphicsGetCurrentContext();
//// Color Declarations
UIColor* fillColor = [UIColor colorWithRed: 0.416 green: 0.416 blue: 0.416 alpha: 1];
UIColor* strokeColor = [UIColor colorWithRed: 0.322 green: 0.322 blue: 0.322 alpha: 1];
UIColor* shadowColor2 = [UIColor colorWithRed: 0.2 green: 0.2 blue: 0.2 alpha: 1];
UIColor* shadowColor3 = [UIColor colorWithRed: 0.671 green: 0.671 blue: 0.671 alpha: 1];
UIColor* fillColor2 = [UIColor colorWithRed: 0.247 green: 0.247 blue: 0.247 alpha: 1];
UIColor* strokeColor2 = [UIColor colorWithRed: 0.188 green: 0.188 blue: 0.188 alpha: 1];
UIColor* color = [UIColor colorWithRed: 0 green: 0.886 blue: 0 alpha: 1];
//// Gradient Declarations
NSArray* outerRectGradientColors = [NSArray arrayWithObjects:
(id)strokeColor.CGColor,
(id)fillColor.CGColor, nil];
CGFloat outerRectGradientLocations[] = {0, 1};
CGGradientRef outerRectGradient = CGGradientCreateWithColors(colorSpace, (__bridge CFArrayRef)outerRectGradientColors, outerRectGradientLocations);
NSArray* gradientColors = [NSArray arrayWithObjects:
(id)strokeColor2.CGColor,
(id)fillColor2.CGColor, nil];
CGFloat gradientLocations[] = {0, 1};
CGGradientRef gradient = CGGradientCreateWithColors(colorSpace, (__bridge CFArrayRef)gradientColors, gradientLocations);
//// Shadow Declarations
UIColor* darkShadow = shadowColor2;
CGSize darkShadowOffset = CGSizeMake(3.1, 3.1);
CGFloat darkShadowBlurRadius = 5;
UIColor* lightShadow = shadowColor3;
CGSize lightShadowOffset = CGSizeMake(3.1, 3.1);
CGFloat lightShadowBlurRadius = 5;
//// Frames
CGRect progressIndicatorFrame = CGRectMake(-1, 0, 321, 47);
//// Subframes
CGRect group = CGRectMake(CGRectGetMinX(progressIndicatorFrame) + 10, CGRectGetMinY(progressIndicatorFrame) + 9, CGRectGetWidth(progressIndicatorFrame) - 25, 20);
CGRect activeProgressFrame = CGRectMake(CGRectGetMinX(group) + floor(CGRectGetWidth(group) * 0.00000 + 0.5), CGRectGetMinY(group) + floor(CGRectGetHeight(group) * 0.00000 + 0.5), floor(CGRectGetWidth(group) * 1.00000 + 0.5) - floor(CGRectGetWidth(group) * 0.00000 + 0.5), floor(CGRectGetHeight(group) * 1.00000 + 0.5) - floor(CGRectGetHeight(group) * 0.00000 + 0.5));
//// Abstracted Attributes
CGRect progressTrackActiveRect = CGRectMake(CGRectGetMinX(activeProgressFrame) + 4, CGRectGetMinY(activeProgressFrame) + 5, CGRectGetWidth(activeProgressFrame) - 8, 10);
//// Progress Bar
{
//// Border Drawing
CGRect borderRect = CGRectMake(CGRectGetMinX(progressIndicatorFrame) + 2, CGRectGetMinY(progressIndicatorFrame) + 3, CGRectGetWidth(progressIndicatorFrame) - 5, 34);
UIBezierPath* borderPath = [UIBezierPath bezierPathWithRoundedRect: borderRect cornerRadius: 4];
CGContextSaveGState(context);
CGContextSetShadowWithColor(context, darkShadowOffset, darkShadowBlurRadius, darkShadow.CGColor);
CGContextBeginTransparencyLayer(context, NULL);
[borderPath addClip];
CGContextDrawLinearGradient(context, outerRectGradient,
CGPointMake(CGRectGetMidX(borderRect), CGRectGetMinY(borderRect)),
CGPointMake(CGRectGetMidX(borderRect), CGRectGetMaxY(borderRect)),
0);
CGContextEndTransparencyLayer(context);
////// Border Inner Shadow
CGRect borderBorderRect = CGRectInset([borderPath bounds], -lightShadowBlurRadius, -lightShadowBlurRadius);
borderBorderRect = CGRectOffset(borderBorderRect, -lightShadowOffset.width, -lightShadowOffset.height);
borderBorderRect = CGRectInset(CGRectUnion(borderBorderRect, [borderPath bounds]), -1, -1);
UIBezierPath* borderNegativePath = [UIBezierPath bezierPathWithRect: borderBorderRect];
[borderNegativePath appendPath: borderPath];
borderNegativePath.usesEvenOddFillRule = YES;
CGContextSaveGState(context);
{
CGFloat xOffset = lightShadowOffset.width + round(borderBorderRect.size.width);
CGFloat yOffset = lightShadowOffset.height;
CGContextSetShadowWithColor(context,
CGSizeMake(xOffset + copysign(0.1, xOffset), yOffset + copysign(0.1, yOffset)),
lightShadowBlurRadius,
lightShadow.CGColor);
[borderPath addClip];
CGAffineTransform transform = CGAffineTransformMakeTranslation(-round(borderBorderRect.size.width), 0);
[borderNegativePath applyTransform: transform];
[[UIColor grayColor] setFill];
[borderNegativePath fill];
}
CGContextRestoreGState(context);
CGContextRestoreGState(context);
//// ProgressTrack Drawing
CGRect progressTrackRect = CGRectMake(CGRectGetMinX(progressIndicatorFrame) + 12, CGRectGetMinY(progressIndicatorFrame) + 12, CGRectGetWidth(progressIndicatorFrame) - 29, 14);
UIBezierPath* progressTrackPath = [UIBezierPath bezierPathWithRoundedRect: progressTrackRect cornerRadius: 7];
CGContextSaveGState(context);
CGContextSetShadowWithColor(context, lightShadowOffset, lightShadowBlurRadius, lightShadow.CGColor);
CGContextBeginTransparencyLayer(context, NULL);
[progressTrackPath addClip];
CGContextDrawLinearGradient(context, gradient,
CGPointMake(CGRectGetMidX(progressTrackRect), CGRectGetMinY(progressTrackRect)),
CGPointMake(CGRectGetMidX(progressTrackRect), CGRectGetMaxY(progressTrackRect)),
0);
CGContextEndTransparencyLayer(context);
////// ProgressTrack Inner Shadow
CGRect progressTrackBorderRect = CGRectInset([progressTrackPath bounds], -darkShadowBlurRadius, -darkShadowBlurRadius);
progressTrackBorderRect = CGRectOffset(progressTrackBorderRect, -darkShadowOffset.width, -darkShadowOffset.height);
progressTrackBorderRect = CGRectInset(CGRectUnion(progressTrackBorderRect, [progressTrackPath bounds]), -1, -1);
UIBezierPath* progressTrackNegativePath = [UIBezierPath bezierPathWithRect: progressTrackBorderRect];
[progressTrackNegativePath appendPath: progressTrackPath];
progressTrackNegativePath.usesEvenOddFillRule = YES;
CGContextSaveGState(context);
{
CGFloat xOffset = darkShadowOffset.width + round(progressTrackBorderRect.size.width);
CGFloat yOffset = darkShadowOffset.height;
CGContextSetShadowWithColor(context,
CGSizeMake(xOffset + copysign(0.1, xOffset), yOffset + copysign(0.1, yOffset)),
darkShadowBlurRadius,
darkShadow.CGColor);
[progressTrackPath addClip];
CGAffineTransform transform = CGAffineTransformMakeTranslation(-round(progressTrackBorderRect.size.width), 0);
[progressTrackNegativePath applyTransform: transform];
[[UIColor grayColor] setFill];
[progressTrackNegativePath fill];
}
CGContextRestoreGState(context);
CGContextRestoreGState(context);
//// Group
{
//// ProgressTrackActive Drawing
UIBezierPath* progressTrackActivePath = [UIBezierPath bezierPathWithRoundedRect: progressTrackActiveRect cornerRadius: 5];
[color setFill];
[progressTrackActivePath fill];
}
}
//// Cleanup
CGGradientRelease(outerRectGradient);
CGGradientRelease(gradient);
CGColorSpaceRelease(colorSpace);
}